Senior Test Engineer (API)

🏢 Summary: The offer is for a Lead Technical Tester responsible for leading comprehensive testing efforts across data and AI-driven software projects, ensuring high quality, performance, and security. The role combines hands-on test automation in Python with designing containerized end-to-end environments and improving CI/CD and observability practices. It involves close collaboration with developers and ownership of testing strategy across the full software lifecycle. 🗂️ Requirements: EU citizenship, Residence in Poland, 5+ years of experience in Python development, Experience with asynchronous programming and package design, Experience with REST/gRPC APIs, Experience with FastAPI or similar frameworks, Hands-on experience with Kubernetes, Experience with containerized deployments, Experience with CI/CD pipelines, Experience with GitHub Actions and GitLab CI, Experience with OpenTelemetry instrumentation, Ability to design containerized end-to-end test environments, Experience with Confluence and Jira, Fluent English (B2/C1) 📃 Skills: Python, FastAPI, REST, gRPC, Kubernetes, CI/CD, GitHub, GitLab, OpenTelemetry, Docker, Confluence, Jira 🏢 Description: Company Description Sopra Steria is one of the largest players in the tech industry in Europe, known for its consulting, digital services and software development. We operate in nearly 30 countries in the world, hiring more than 55,000 employees. The Polish branch, as the Global Delivery Center, operates in Katowice since 2007 and has been growing ever since. Currently, our team consists of around 1,000 specialists. Within the Digital Platform Services department, our teams specialize in areas such as cloud, operating systems, virtualization, databases, backup or storage, as well as networking and security. We also have 1st line support consultants who speak French and English, but also Italian, Spanish, Portuguese and German. The Application Services department is responsible for areas such as software development, data engineering, testing services, CRM, ITSM and ERP platform integrations, as well as application management for customers in Scandinavia, Benelux, France, Germany, Switzerland and the UK. Job Description We are looking for a Lead Technical Tester to join Sopra Steria Polska and support a team working across data, artificial intelligence, digital innovation, and web presence. In this role, you will contribute to deliv-ering foundational components, tools, guidance, and services throughout the entire lifecycle, from design to implementation and operations. Note that we can only offer cooperation to people who are located in Poland and have EU citizenship. Responsibilities:​ Creating automatic and manual tests (test analysis and design + execution) Analysis of test results suggests ways to improve processes or increase productivity and quality Cooperation with developers in diagnosing and correcting errors and error reporting Running retests and regression tests (implementation and maintenance) Taking care of test documentation Leading comprehensive testing efforts across multiple software projects, ensuring that all products meet the highest standards of quality, performance, and security Manages critical test case design and reviews test plans to ensure comprehensive coverage and effectiveness. Analyses complex test results and leads troubleshooting efforts to resolve issues efficiently Continuously evaluates testing processes and implements improvements to increase efficiency, effectiveness, and scope of testing. Reports on testing progress, challenges, and outcomes to senior management, influencing decision-making regarding product quality and release readines Tech stack on the project:​ Python REST/gRPC APIs GitHub Actions and GitLab Confluence and Jira. Qualifications Must have requirements:​ 5+ years of experience in Python development, including asynchronous patterns, package design, CLI tooling, and working with REST/gRPC APIs. Experience with FastAPI or similar frameworks used for backend service testing. Hands‑on experience with containerized deployments, particularly using Kubernetes. Good understanding of CI/CD pipelines, especially with GitHub Actions and GitLab CI. Experience with OpenTelemetry instrumentation (traces, metrics, logs) implemented directly within application code. Ability to design and manage containerized end‑to‑end test environments that mirror production conditions. Experience working with Atlassian tools, such as Confluence and Jira EU citizenship Fluent English: B2/C1. Being open to occasional business trips abroad and visits in our office in Katowice Nice to have requirements: Clearance Additional Information What we offer: • BENEFITS (UoP): Luxmed, Medicover Sport, Worksmile, educational platforms, languages learning platform, referral bonus, life insurance, workation • DEVELOPMENT OPPORTUNITIES (UoP and B2B): certifications (paid by the company), conferences, Tech Lunches, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud) The recruitment process for this position consists of two stages: • a short phone call with a recruiter (30 min max) • one-hour long interview on Teams (with both general and technical questions) Salary range: UOP: 12 000-16 000 PLN gross/month. B2B: 100-140 PLN net/h All information about salary range and its additional components will be provided during the 1st stage of recruitment process. At our organization, we are committed to fighting against all forms of discrimination. We foster a work environment that is inclusive and respectful of all differences.

🏢 Summary: DevOps Engineer (Database) role focused on designing, automating and operating database services across AWS cloud and on‑prem environments. The position involves building CI/CD pipelines, managing Kubernetes-based deployments, and automating infrastructure using IaC and scripting. The engineer supports full lifecycle management of Oracle and PostgreSQL databases in an international squad. 🗂️ Requirements: Strong Python proficiency, Bash scripting experience, Hands-on Oracle administration, Hands-on PostgreSQL administration, Experience with AWS core services, Kubernetes practical experience, Infrastructure as Code with Terraform or CloudFormation, Configuration management with Ansible, CI/CD using GitLab or Jenkins, Experience with virtualization technologies 📃 Skills: Python, Bash, Oracle, PostgreSQL, AWS, RDS, EC2, VPC, IAM, ALB, NLB, S3, EKS, ECS, CloudWatch, CloudTrail, Kubernetes, Terraform, CloudFormation, Ansible, GitLab, Jenkins, VMware, Hyper-V, KVM, Nutanix 🏢 Description: Company Description Sopra Steria is one of the largest players in the tech industry in Europe, known for its consulting, digital services and software development. We operate in nearly 30 countries in the world, hiring more than 55,000 employees. The Polish branch, as the Global Delivery Center, operates in Katowice since 2007 and has been growing ever since. Currently, our team consists of around 1,000 specialists. Within the Digital Platform Services department, our teams specialize in areas such as cloud, operating systems, virtualization, databases, backup or storage, as well as networking and security. We also have 1st line support consultants who speak French and English, but also Italian, Spanish, Portuguese and German. The Application Services department is responsible for areas such as software development, data engineering, testing services, CRM, ITSM and ERP platform integrations, as well as application management for customers in Scandinavia, Benelux, France, Germany, Switzerland and the UK. Job Description We are looking for DevOps Engineer (DataBase) to join Sopra Steria Polska and one of our innovative international squads located in Belgic and Poland. You will play a pivotal role in the delivery of our database services across cloud and on-premises environments. This team is responsible for designing, implementing and maintaining the full lifecycle of database solutions. Note that we can only offer cooperation to people who are located in Poland and have EU citizenship. Responsibilities:​ Collaborate with team members to write efficient, reusable, and maintainable code. Contribute to the continuous improvement of existing services by identifying opportunities for optimization. Write unit tests and integration tests where necessary to increase the confidence during development and deployment of the code. Collaborate with team members to build, maintain, and optimise pipelines (build, test, deploy, rollback) for database service automation code in GitLab. Develop and manage Kubernetes Custom Resource Definitions (XRDs) and utilise crossplane to deploy databases across cloud and on-prem environments. Utilise Infrastructure as Code (IaC) and scripting to automate environment provisioning, configuration, patching, backups, DR testing, and routine operational tasks. Suggest and implement automation of deployment and configuration tasks, including automated deployment strategies (blue/green, canary). Document infrastructure, code, scripts, and configurations to ensure maintainability and knowledge transfer within the squad. Administer and automate Oracle and PostgreSQL operational tasks, including migrations, backups/restores, replication, upgrades, and performance tuning in both cloud and on-prem setups Tech stack on the project:​ Python, Oracle, PostgreSQL, AWS and Kubernetes. Qualifications Must have requirements:​ Strong proficiency in Python and experience with Bash scripting. Solid hands‑on experience in Database Operations, especially with Oracle and PostgreSQL. Extensive experience working with AWS core services, including: RDS, EC2, VPC, IAM, ALB/NLB, S3, EKS/ECS, CloudWatch, CloudTrail. Practical experience with Kubernetes and containerized environments. Experience with Infrastructure as Code (IaC) tools such as Terraform or CloudFormation. Knowledge of configuration management tools like Ansible. Experience in CI/CD processes using GitLab or Jenkins. Familiarity with on‑premise virtualization technologies, such as VMware, Hyper‑V, KVM, Nutanix. EU citizenship Fluent English: B2/C1. Being open to occasional business trips abroad and visits in our office in Katowice. Nice to have requirements: Clearance Additional Information What we offer: • BENEFITS (UoP): Luxmed, Medicover Sport, Worksmile, educational platforms, languages learning platform, referral bonus, copyrights, life insurance, workation • DEVELOPMENT OPPORTUNITIES (UoP and B2B): certifications (paid by the company), conferences, Tech Lunches, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud) The recruitment process for this position consists of two stages: • a short phone call with a recruiter (30 min max) • one-hour long interview on Teams (with both general and technical questions) Salary range: UOP: 12 000-16 000 PLN gross/month. B2B: 100-140 PLN net/h All information about salary range and its additional components will be provided during the 1st stage of recruitment process. At our organization, we are committed to fighting against all forms of discrimination. We foster a work environment that is inclusive and respectful of all differences.

🏢 Summary: The offer is for a Senior Software Engineer (Java) to integrate Simpl‑Open middleware with the Language Data Space (LDS), focusing on secure onboarding, identity integration, metadata interoperability, and production‑ready backend services. The role combines backend development, systems integration, and identity and access management within a federated, multi‑stakeholder environment. It involves designing and implementing APIs, connectors, and secure service integrations using modern authentication standards and containerized deployment. 🗂️ Requirements: Strong proficiency in Java and Spring Boot, Experience with REST APIs and OpenAPI specifications, Experience with Docker containerization, Knowledge of OAuth 2.0 and OpenID Connect, Experience in backend or distributed systems engineering, Experience with API-based integration and authentication/authorization integration, University degree in Computer Science or related field, EU citizenship, Fluent English (B2/C1), Willingness to work from Katowice office 📃 Skills: Java, Spring, REST, OpenAPI, JSON, YAML, Docker, OAuth2, OpenID, Keycloak, RBAC, ABAC, API, CI/CD 🏢 Description: Sopra Steria is one of the largest players in the tech industry in Europe, known for its consulting, digital services and software development. We operate in nearly 30 countries in the world, hiring more than 55,000 employees. The Polish branch, as the Global Delivery Center, operates in Katowice since 2007 and has been growing ever since. Currently, our team consists of around 1,000 specialists. Within the Digital Platform Services department, our teams specialize in areas such as cloud, operating systems, virtualization, databases, backup or storage, as well as networking and security. We also have 1st line support consultants who speak French and English, but also Italian, Spanish, Portuguese and German. The Application Services department is responsible for areas such as software development, data engineering, testing services, CRM, ITSM and ERP platform integrations, as well as application management for customers in Scandinavia, Benelux, France, Germany, Switzerland and the UK. Job Description We are looking for a Senior Software Engineer (Java) to join Sopra Steria Polska as part of the delivery team responsible for integrating the Simpl‑Open middleware into the Language Data Space (LDS). In this role, you will focus on secure participant onboarding, connector and middleware interoperability, identity and access integration, metadata publication and discovery, vocabulary alignment, and production‑ready delivery. You will design and implement technical integrations between LDS platform components and Simpl‑Open middleware services. This position combines backend engineering, systems integration, identity and trust services, metadata and semantic interoperability, and operational readiness within a federated, multi‑stakeholder environment. Note that we can only offer cooperation to people who has EU citizenship, are located in Poland and are willing to commute to our office in Katowice, Poland. Responsibilities:​ Design and implement APIs, adapters, connectors, and integration services between LDS components and Simpl-Open capabilities. Implement participant onboarding, secure communications setup, and connector registration workflows. Integrate authentication, authorization, role assignment, attribute mapping, and directory-connected access-management patterns. Implement metadata publication, catalogue interaction, discovery flows, validation rules, and transformation logic. Support vocabulary management, semantic mappings, and multilingual metadata interoperability. Contribute to deployment automation, integration testing, observability, troubleshooting, and technical documentation. Tech stack on the project: ​REST APIs, Keycloak, Identity and Access Management OAuth 2.0, OpenID, Connect Role-Based Access Control (RBAC), Attribute-Based Access Control (ABAC), Java, Spring Boot, JSON, YAML, OpenAPI, Docker Qualifications Must have requirements:​ Strong proficiency in Java and Spring Boot for building scalable backend applications and implementing service‑to‑service communication. Hands‑on experience with containerization technologies, particularly Docker, including building, running, and troubleshooting containerized applications. Experience working with REST APIs and API specification formats such as OpenAPI, using JSON and YAML for defining and documenting services. Knowledge of modern authentication and authorization standards, including OAuth 2.0 and OpenID Connect, and the ability to integrate secure identity flows into backend services. University degree in Computer Science, Software Engineering, Information Systems, Telecommunications, or equivalent experience. Several years of hands-on experience in backend engineering, middleware engineering, platform integration, or distributed-systems delivery. Strong command of API-based integration, authentication and authorization integration, containerized delivery, and operational support. EU citizenship. Fluent English: B2/C1. Being open to occasional business trips abroad and visits to our office in Katowice. Nice to have requirements: Experience with Keycloak or comparable identity platforms. Experience with data catalogues, metadata validation, vocabulary management, or schema-governance mechanisms. Experience with container platforms, CI/CD, logging and monitoring stacks, and automated deployment practices. Experience with data spaces, interoperability frameworks, or European digital-platform environments Additional Information What we offer: • BENEFITS (UoP): Luxmed, Medicover Sport, Worksmile, educational platforms, languages learning platform, referral bonus, copyrights, life insurance, workation • DEVELOPMENT OPPORTUNITIES (UoP and B2B): certifications (paid by the company), conferences, Tech Lunches, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud) The recruitment process for this position consists of two stages: • a short phone call with a recruiter (30 min max) • one-hour long interview on Teams (with both general and technical questions) Salary range: UOP: 12 000-16 000 PLN gross/month. B2B: 100-140 PLN net/h All information about salary range and its additional components will be provided during the 1st stage of recruitment process. At our organization, we are committed to fighting against all forms of discrimination. We foster a work environment that is inclusive and respectful of all differences.

🏢 Summary: Senior Software Engineer role focused on developing and maintaining aerospace industry applications in a multinational environment using C++, C#, and related technologies. The position involves software implementation, testing, integration, troubleshooting, and performance optimization within distributed international teams. The offer includes hybrid cooperation from Katowice, business travel opportunities, and a broad technical stack. 🗂️ Requirements: 5+ years commercial experience in senior or senior-ready role, Strong knowledge of C/C++, Strong knowledge of C#, Understanding of design patterns, Experience with testing, Experience with integration activities, Experience with troubleshooting, Experience in multinational distributed environments, Strong communication skills, EU citizenship, Fluent English B2/C1, Willingness to commute to Katowice office, Willingness for occasional business trips abroad 📃 Skills: C, C++, C#, .NET, Python, Shell, DevExpress, VisualStudio, Sqlite, Boost, Xerces, log4net 🏢 Description: Company Description Sopra Steria is one of the largest players in the tech industry in Europe, known for its consulting, digital services and software development. We operate in nearly 30 countries in the world, hiring more than 55,000 employees. The Polish branch, as the Global Delivery Center, operates in Katowice since 2007 and has been growing ever since. Currently, our team consists of around 1,000 specialists. Within the Digital Platform Services department, our teams specialize in areas such as cloud, operating systems, virtualization, databases, backup or storage, as well as networking and security. We also have 1st line support consultants who speak French and English, but also Italian, Spanish, Portuguese and German. The Application Services department is responsible for areas such as software development, data engineering, testing services, CRM, ITSM and ERP platform integrations, as well as application management for customers in Scandinavia, Benelux, France, Germany, Switzerland and the UK. Job Description We are looking for a Senior Software Engineer (C++, C#) to join Sopra Steria Polska for a client in the aerospace sector. You will work in an industrial environment and a multi-functional team divided between France, Spain, Germany, Poland and India for a major aeronautical manufacturer. The program involves a wide portfolio of applications developed by multiple teams. Note that we can only offer cooperation to people who have EU citizenship, are located in Poland and are willing to commute to our office in Katowice, Poland. Responsibilities: • Implementing solutions and delivering software. • Proposing solutions. • Creating and testing software to enhance the solution and all related modules and services. • Facilitating testing, integration, and troubleshooting activities. • Shaping and applying software standards of clean code and performance optimization techniques. • Translate business and technical requirements into clean, efficient code. Tech stack on the project: • C/C++/C#, python/shell, devexpress, .Net, Visual Studio 2022, Sqlite. • boost, driver AIM, Marben Osiam, Marben TCE, Sqlitepp, Xerces, libRegen, IDAManager, ibgambasproto, dllAFDX, log4net, ihs_BCU. Qualifications Must have requirements: • 5+ years of commercial experience in a senior or senior-ready role. • Strong expertise in C/C++ and C#. • Good understanding of design patterns. • Experience with testing, integration, and troubleshooting activities. • Experience in working in multinational and distributed environment. • Strong communication skills to collaborate with cross-functional teams. • EU citizenship. • Fluent English: B2/C1. • Being open to occasional business trips abroad and visits in the office in Katowice. Additional Information What we offer: Benefits (UoP): • Luxmed • Medicover Sport • Worksmile • Educational platforms • Language learning platform • Referral bonus • Copyrights • Life insurance • Certifications paid by the company • Conferences • Tech Lunches • Possibility to join Communities: Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud • Local kindergarten Development Opportunities (B2B): • Tech Lunches • Worksmile • Possibility to join Communities: Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud Addition: • Free parking • Fresh fruits • Workation The recruitment process for this position consists of two stages: • A short phone call with a recruiter (30 min max) • One-hour interview on Teams with general and technical questions • One-hour interview on Teams with project representatives Salary range: • UoP: 12 000 - 16 000 PLN gross/month • B2B: 100 - 140 PLN nett/h All information about salary range and its additional components will be provided during the first stage of recruitment process. At our organization, we are committed to fighting against all forms of discrimination. We foster a work environment that is inclusive and respectful of all differences.

🏢 Summary: Senior Software Engineer (Java + Angular) role focused on designing, developing and maintaining enterprise applications for a major aeronautical manufacturer within a multinational environment. The position involves full‑stack development, code quality assurance, performance optimization and collaboration across distributed teams. The offer is dedicated to EU citizens based in Poland, working in a hybrid model from Katowice. 🗂️ Requirements: 4+ years commercial experience in senior or senior-ready software engineering role, Strong experience with Java 8–21, Strong experience with Angular 1.7.5, Knowledge of Spring 5.2, Knowledge of Spring Boot 2.3, Hands-on experience with ElasticSearch 7.17–8.X, Hands-on experience with Neo4j 4.4–5.X, Proficiency with Git and GitHub, Experience with SOAP and REST web services, English B2 level or higher, EU citizenship, Residence in Poland and willingness to work from Katowice office 📃 Skills: Java, Angular, TypeScript, JavaScript, Spring, SpringBoot, Maven, ElasticSearch, Neo4j, OracleDB, PostgreSQL, Jenkins, Docker, Ansible, SonarQube, Git, GitHub, SOAP, REST 🏢 Description: Company Description Sopra Steria is one of the largest players in the tech industry in Europe, known for its consulting, digital services and software development. We operate in nearly 30 countries in the world, hiring more than 55,000 employees. The Polish branch, as the Global Delivery Center, operates in Katowice since 2007 and has been growing ever since. Currently, our team consists of around 1,000 specialists. Within the Digital Platform Services department, our teams specialize in areas such as cloud, operating systems, virtualization, databases, backup or storage, as well as networking and security. We also have 1st line support consultants who speak French and English, but also Italian, Spanish, Portuguese and German. The Application Services department is responsible for areas such as software development, data engineering, testing services, CRM, ITSM and ERP platform integrations, as well as application management for customers in Scandinavia, Benelux, France, Germany, Switzerland and the UK. Job Description We are looking for a Senior Software Engineer (Java + Angular) to join Sopra Steria Polska for our project for a major aeronautical manufacturer. You will work in an industrial, stable environment in multinational team (France, Poland, Canada, India). The program involves wide portfolio of applications developed by multiple teams. Note that we can only offer cooperation to people who has EU citizenship, are located in Poland and are willing to commute to our office in Katowice, Poland. Responsibilities:​ Design, implement, and deliver high-quality software solutions Translate business and technical requirements into clean, efficient code Develop, test, and maintain application modules and services Apply clean code standards and performance optimization best practices Participate in code reviews, unit, and integration testing Collaborate closely with technical leaders, clients, and cross-functional teams Contribute to problem-solving and technical discussions Tech stack: Java 11, Spring, Spring Boot, Maven, Frontend: Angular, Bazy danych: OracleDB, PostgreSQL, DevOps & CI/CD: Jenkins, Docker, Ansible, SonarQube, GitHub, Web Services: SOAP, REST. Qualifications Must have requirements:​ 4+ years of commercial experience in a senior or senior-ready role Strong experience with Java 8–21 (partially also newer versions, depending on the module) and Angular 1.7.5 (TypeScript, JavaScript) Knowledge of Spring 5.2 and Springboot 2.3 Hands-on knowledge of ElasticSearch 7.17- 8.X and Neo4j 4.4 – 5.X Proficiency with Git and GitHub Analytical and problem-solving mindset Strong communication skills to collaborate with cross-functional teams Proactive and detail-oriented Ability to document processes and share knowledge effectively English at B2 level or higher, enabling fluent communication in an international team Being open to occasional business trips abroad and regular visits in our office in Katowice Nice to have requirements: Proficiency in French would be a strong advantage Additional Information What we offer: • BENEFITS (UoP): Luxmed, Medicover Sport, Worksmile, educational platforms, languages learning platform, referral bonus, copyrights, life insurance, workation • DEVELOPMENT OPPORTUNITIES (UoP): certifications (paid by the company), conferences, Tech Lunches, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud) The recruitment process for this position consists of two stages: • a short phone call with a recruiter (30 min max) • one-hour long interview on Teams (with both general and technical questions) Salary range: 12 000 – 16 000 PLN gross/month All information about salary range and its additional components will be provided during the 1st stage of recruitment process. At our organization, we are committed to fighting against all forms of discrimination. We foster a work environment that is inclusive and respectful of all differences.

🏢 Summary: Senior Software Engineer (Java + Angular) role in an international project for a major aeronautical manufacturer, focused on designing and delivering high-quality applications within a large, multi-team environment. The position involves full-stack development, integration of enterprise systems, and collaboration in a multinational team using modern DevOps practices. Work is based in Katowice with regular office presence. 🗂️ Requirements: 4+ years of commercial experience in software development, Strong experience with Java 8–21, Strong experience with Angular 1.7.5, Knowledge of Spring 5.2, Knowledge of Spring Boot 2.3, Hands-on experience with ElasticSearch 7.17–8.X, Hands-on experience with Neo4j 4.4–5.X, Proficiency with Git and GitHub, Experience with SOAP and REST web services, English at B2 level or higher, EU citizenship, Residence in Poland, Willingness to work from the Katowice office 📃 Skills: Java, Angular, TypeScript, JavaScript, Spring, SpringBoot, Maven, ElasticSearch, Neo4j, OracleDB, PostgreSQL, Jenkins, Docker, Ansible, SonarQube, Git, GitHub, SOAP, REST 🏢 Description: Sopra Steria is one of the largest players in the tech industry in Europe, known for its consulting, digital services and software development. We operate in nearly 30 countries in the world, hiring more than 55,000 employees. The Polish branch, as the Global Delivery Center, operates in Katowice since 2007 and has been growing ever since. Currently, our team consists of around 1,000 specialists. Within the Digital Platform Services department, our teams specialize in areas such as cloud, operating systems, virtualization, databases, backup or storage, as well as networking and security. We also have 1st line support consultants who speak French and English, but also Italian, Spanish, Portuguese and German. The Application Services department is responsible for areas such as software development, data engineering, testing services, CRM, ITSM and ERP platform integrations, as well as application management for customers in Scandinavia, Benelux, France, Germany, Switzerland and the UK. Job Description We are looking for a Senior Software Engineer (Java + Angular) to join Sopra Steria Polska for our project for a major aeronautical manufacturer. You will work in an industrial, stable environment in multinational team (France, Poland, Canada, India). The program involves wide portfolio of applications developed by multiple teams. Note that we can only offer cooperation to people who has EU citizenship, are located in Poland and are willing to commute to our office in Katowice, Poland. Responsibilities:​ Design, implement, and deliver high-quality software solutions Translate business and technical requirements into clean, efficient code Develop, test, and maintain application modules and services Apply clean code standards and performance optimization best practices Participate in code reviews, unit, and integration testing Collaborate closely with technical leaders, clients, and cross-functional teams Contribute to problem-solving and technical discussions Tech stack: Java 11, Spring, Spring Boot, Maven, Frontend: Angular, Bazy danych: OracleDB, PostgreSQL, DevOps & CI/CD: Jenkins, Docker, Ansible, SonarQube, GitHub, Web Services: SOAP, REST. Qualifications Must have requirements:​ 4+ years of commercial experience in a senior or senior-ready role Strong experience with Java 8–21 (partially also newer versions, depending on the module) and Angular 1.7.5 (TypeScript, JavaScript) Knowledge of Spring 5.2 and Springboot 2.3 Hands-on knowledge of ElasticSearch 7.17- 8.X and Neo4j 4.4 – 5.X Proficiency with Git and GitHub Analytical and problem-solving mindset Strong communication skills to collaborate with cross-functional teams Proactive and detail-oriented Ability to document processes and share knowledge effectively English at B2 level or higher, enabling fluent communication in an international team Being open to occasional business trips abroad and regular visits in our office in Katowice Nice to have requirements: Proficiency in French would be a strong advantage Additional Information What we offer: BENEFITS (UoP): Luxmed, Medicover Sport, Worksmile, educational platforms, languages learning platform, referral bonus, copyrights, life insurance, certifications (paid by the company), conferences, Tech Lunches, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud), local kindergarten. ADDITION: free parking, fresh fruits, workation. In case of questions, please contact the HR team. The recruitment process for this position consists of two stages: • a short phone call with a recruiter (30 min max) • one-hour long interview on Teams (with both general and technical questions) Salary range: 12 000 – 16 000 PLN gross/month All information about salary range and its additional components will be provided during the 1st stage of recruitment process. At our organization, we are committed to fighting against all forms of discrimination. We foster a work environment that is inclusive and respectful of all differences.

🏢 Summary: Software Engineer (Java) role focused on developing and integrating backend services and middleware within the Language Data Space ecosystem. The position involves API integrations, identity and authentication configuration, containerized deployments, testing, and operational support in a cross-functional engineering team. The role requires working from Katowice, Poland and supporting secure, scalable service-to-service integrations. 🗂️ Requirements: Strong proficiency in Java, Strong proficiency in Spring Boot, Experience with backend development and API-based integrations, Hands-on experience with Docker, Hands-on experience with Kubernetes, Experience with REST APIs and OpenAPI specifications, Knowledge of Keycloak, Knowledge of OAuth 2.0, Knowledge of OpenID Connect, Experience with version control and testing practices, Experience with containerized deployments and CI/CD activities, Ability to troubleshoot integration and runtime issues, Degree in Computer Science or related field, Professional experience in software development or systems integration, EU citizenship, Fluent English (B2/C1), Willingness to work from Katowice, Poland 📃 Skills: Java, SpringBoot, Docker, Kubernetes, REST, OpenAPI, JSON, YAML, Keycloak, OAuth2, OpenIDConnect, Git, CICD 🏢 Description: Sopra Steria is one of the largest players in the tech industry in Europe, known for its consulting, digital services and software development. We operate in nearly 30 countries in the world, hiring more than 55,000 employees. The Polish branch, as the Global Delivery Center, operates in Katowice since 2007 and has been growing ever since. Currently, our team consists of around 1,000 specialists. Within the Digital Platform Services department, our teams specialize in areas such as cloud, operating systems, virtualization, databases, backup or storage, as well as networking and security. We also have 1st line support consultants who speak French and English, but also Italian, Spanish, Portuguese and German. The Application Services department is responsible for areas such as software development, data engineering, testing services, CRM, ITSM and ERP platform integrations, as well as application management for customers in Scandinavia, Benelux, France, Germany, Switzerland and the UK. Job Description We are looking for a Software Engineer (Java) to join Sopra Steria Polska and support the development team responsible for integrating the Simpl-Open middleware into the Language Data Space (LDS) ecosystem. In this role, you will contribute to software development, technical integration, configuration, testing, deployment support, and operational troubleshooting. You will collaborate closely with senior engineers, architects, and technical leads as part of a cross-functional engineering team delivering interfaces and runtime integrations between LDS components and Simpl-Open services. Note that we can only offer cooperation to people who has EU citizenship, are located in Poland and are willing to commute to our office in Katowice, Poland. Responsibilities:​ Implement backend services, API integrations, and technical adapters under the guidance of senior engineers. Configure and integrate identity, authentication, authorization, and connector-related services. Develop and maintain integration logic for metadata exchange, catalogue interfacing, and validation flows. Support vocabulary-related interoperability, mappings, and configuration tasks. Prepare and execute technical tests, including integration tests, deployment verification, and regression checks. Investigate incidents, defects, and integration issues in development and test environments. Contribute to CI/CD activities, containerised deployments, and runtime support tasks. Produce concise technical documentation, configuration notes, and implementation handover material. Tech stack on the project:​ REST APIs, Keycloak, OAuth 2.0, OpenID Connect, Java, Spring Boot, JSON, YAML, OpenAPI, Docker, Kubernetes. Qualifications Must have requirements:​ Strong proficiency in Java and Spring Boot for backend service development. Hands‑on experience with containerization and orchestration tools, specifically Docker and Kubernetes. Experience with backend development and API-based integration. Good command of secure application integration and service-to-service communication. Experience with version control, debugging, testing, and software delivery practices. Familiarity with containerized environments and deployment support activities. Ability to analyze issues methodically and deliver reliable technical fixes. Willingness to learn, document work clearly, and contribute in a team-oriented delivery setting Experience working with REST APIs and API specification formats such as OpenAPI using JSON/YAML. Knowledge of authentication and authorization technologies, including Keycloak, OAuth 2.0, and OpenID Connect. Degree in Computer Science, Software Engineering, Information Systems, Telecommunications, or equivalent practical experience. Professional experience in software development, systems integration, platform engineering, or backend delivery. EU citizenship. Fluent English: B2/C1. Being open to occasional business trips abroad and visits to our office in Katowice. Nice to have requirements: Exposure to identity and access management platforms, metadata catalogues, semantic technologies, or data-platform delivery is an advantage. Experience with public-sector digital platforms, interoperability solutions, or EU-funded technical environments is also beneficial. Additional Information What we offer: • BENEFITS (UoP): Luxmed, Medicover Sport, Worksmile, educational platforms, languages learning platform, referral bonus, copyrights, life insurance, workation • DEVELOPMENT OPPORTUNITIES (UoP ): certifications (paid by the company), conferences, Tech Lunches, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud) The recruitment process for this position consists of two stages: • a short phone call with a recruiter (30 min max) • one-hour long interview on Teams (with both general and technical questions) Salary range: UOP: 8 500- 11 000 PLN gross/month. All information about salary range and its additional components will be provided during the 1st stage of recruitment process. At our organization, we are committed to fighting against all forms of discrimination. We foster a work environment that is inclusive and respectful of all differences.

🏢 Summary: Senior Software Engineer (C++, Qt) role focused on developing and enhancing an aviation application used for flight preparation, documentation access, communication, and operational data. The position involves implementing new features, refactoring code, performing code reviews, and ensuring clean, high‑performance software in a distributed international environment. 🗂️ Requirements: Minimum 5 years experience as Software Engineer or similar role, Strong hands-on experience with C++, Strong hands-on experience with Qt, Good understanding of QML, Knowledge of design patterns, Experience in multinational and distributed teams, EU citizenship, Residence in Poland, Willingness to work from Katowice office, Fluent English (B2/C1) 📃 Skills: C++, Qt, QML, JavaScript, SQL, AWS, GIT, Jira, Confluence, QTest, GTest, Agile 🏢 Description: Company Description Sopra Steria is one of the largest players in the tech industry in Europe, known for its consulting, digital services and software development. We operate in nearly 30 countries in the world, hiring more than 55,000 employees. The Polish branch, as the Global Delivery Center, operates in Katowice since 2007 and has been growing ever since. Currently, our team consists of around 1,000 specialists. Within the Digital Platform Services department, our teams specialize in areas such as cloud, operating systems, virtualization, databases, backup or storage, as well as networking and security. We also have 1st line support consultants who speak French and English, but also Italian, Spanish, Portuguese and German. The Application Services department is responsible for areas such as software development, data engineering, testing services, CRM, ITSM and ERP platform integrations, as well as application management for customers in Scandinavia, Benelux, France, Germany, Switzerland and the UK. Job Description We are looking for Senior Software Engineer (C++, Qt) to join Sopra Steria Polska for a client in the aerospace sector. The project is about creating and improving an app that helps aviation staff do their daily work. It helps them prepare flights, access documents, communicate with ground teams, and check basic information like maps and weather. Note that we can only offer cooperation to people who has EU citizenship, are located in Poland and are willing to commute to our office in Katowice, Poland. Responsibilities:​ • Implementing solutions and delivering software. • Proposing solutions. • Code review. • Attending team meetings. • Refactoring current code. • Supporting Solution Architect. • Creating and testing software to enhance the solution and all related modules and services. • Shaping and applying our software standards of clean code and performance optimization techniques. • Bug fixing. Tech stack on the project:​ • C++ 17, Qt 6.5/6.8, QTest , GTest, QML, JavaScript, SQL, AWS, GIT, Jira, Confluence, Agility. Qualifications Must have requirements:​ • Minimum of 5 years of experience as SE or similar role. • Strong hands-on experience with C++ and Qt. • Good understanding of QML. • Good understanding of design patterns. • Experience in working in multinational and distributed environment. • Communication skills. • EU citizenship. • Fluent English: B2/C1. • Being open to occasional business trips abroad and visits in our office in Katowice. Nice to have requirements: • iOS environment. Additional Information What we offer: • BENEFITS (UoP): Luxmed, Medicover Sport, Worksmile, educational platforms, languages learning platform, referral bonus, copyrights, life insurance, workation • DEVELOPMENT OPPORTUNITIES (UoP and B2B): certifications (paid by the company), conferences, Tech Lunches, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud) The recruitment process for this position consists of two stages: • a short phone call with a recruiter (30 min max) • one-hour long interview on Teams (with both general and technical questions) Salary range: UoP: 12 000 - 17 000 PLN/gross month B2B: 100 - 140 PLN/h All information about salary range and its additional components will be provided during the 1st stage of recruitment process. At our organization, we are committed to fighting against all forms of discrimination. We foster a work environment that is inclusive and respectful of all differences.

🏢 Summary: DevOps Engineer (AI) role focused on building, automating, and optimizing development environments and AI-driven solutions within an international agile team. The position involves implementing Infrastructure as Code, supporting CI/CD pipelines, and delivering scalable AI solutions on AWS. You will enhance developer platforms, ensure security best practices, and contribute to continuous improvement and automation initiatives. 🗂️ Requirements: Advanced experience in software development, Strong hands-on experience with AWS Infrastructure as Code, Experience delivering AI solutions at scale, Knowledge of AI development including agentic approaches, Good knowledge of IT security principles, Experience with CI/CD automation, Practical experience with IDEs, Service management knowledge (ITIL or similar) 📃 Skills: Git, Python, TypeScript, AWS, Terraform, CDK, Ansible, AmazonQ, Kiro, Claude, CICD, Scripting, VSCode, IntelliJ, ITIL, AI 🏢 Description: Company Description Sopra Steria is one of the largest players in the tech industry in Europe, known for its consulting, digital services and software development. We operate in nearly 30 countries in the world, hiring more than 55,000 employees. The Polish branch, as the Global Delivery Center, operates in Katowice since 2007 and has been growing ever since. Currently, our team consists of around 1,000 specialists. Within the Digital Platform Services department, our teams specialize in areas such as cloud, operating systems, virtualization, databases, backup or storage, as well as networking and security. We also have 1st line support consultants who speak French and English, but also Italian, Spanish, Portuguese and German. The Application Services department is responsible for areas such as software development, data engineering, testing services, CRM, ITSM and ERP platform integrations, as well as application management for customers in Scandinavia, Benelux, France, Germany, Switzerland and the UK. Job Description We are looking for a DevOps Engineer (AI) to join Sopra Steria Polska and one of our innovative international squads. You will play a pivotal role in the development and optimization of our development environment. The team is responsible for implementing, maintaining, and supporting developer tools and platforms. Note that we can only offer cooperation to people who are located in Poland and have EU citizenship. Responsibilities:​ Collaborate with team members to write efficient, reusable, and maintainable code. Contribute to the continuous improvement of existing services by identifying opportunities for optimization. Write unit tests and integration tests where necessary to increase the confidence during development and deployment of the code. Utilize Gitlab, CI/CD, and scripting skills to automate the deployment and analysis of code. Suggest and implement automation to streamline deployment, configuration, and monitoring tasks. Work closely with cross-functional team members, including architects, system administrators, and other developers, to ensure seamless integration and interoperability. Participate in agile ceremonies, including sprint planning, daily stand-ups, and sprint reviews, to foster effective collaboration within the squad. Engage in knowledge-sharing activities and contribute to the collective expertise of the team. Document code, scripts, and configurations thoroughly to ensure maintainability and knowledge transfer within the squad. Contribute to the creation and maintenance of technical documentation for the squad Tech stack on the project:​ Git, Python, TypeScript Amazon Q, Kiro, Claude Terraform, CDK, Ansible Qualifications Must have requirements:​ Good knowledge of IT security principles. Advance experience in software development (Git, Python, TypeScript) AI tools for Devs (Amazon Q, Kiro, Claude), coding assistants, AI agents. Experience with AI development including agentic, experience with delivering AI solutions to customers at scale Practical experience with IDEs (VS Code, IntelliJ) Must have a strong hands-on experience in AWS Infrastructure as Code (Terraform, CDK, Ansible); Service management experience (ITIL or similar) EU citizenship Fluent English: B2/C1. Being open to occasional business trips abroad and visits in our office in Katowice Nice to have requirements: Clearance Additional Information What we offer: BENEFITS (UoP): Luxmed, Medicover Sport, Worksmile, educational platforms, languages learning platform, referral bonus, copyrights, life insurance, workation DEVELOPMENT OPPORTUNITIES (UoP and B2B): certifications (paid by the company), conferences, Tech Lunches, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud) The recruitment process for this position consists of two stages: a short phone call with a recruiter (30 min max) one-hour long interview on Teams (with both general and technical questions) Salary range: UOP: 12 000-16 000 PLN gross/month. B2B: 100-140 PLN net/h All information about salary range and its additional components will be provided during the 1st stage of recruitment process. At our organization, we are committed to fighting against all forms of discrimination. We foster a work environment that is inclusive and respectful of all differences.

🏢 Summary: Junior Software Engineer (Java) role focused on backend development and integration of Simpl-Open middleware within the Language Data Space ecosystem. The position involves building APIs, configuring identity services, supporting containerized deployments, and troubleshooting integration issues in a cross-functional team. The role includes CI/CD support, testing, and technical documentation in a containerized cloud environment. 🗂️ Requirements: Strong Java proficiency, Strong Spring Boot proficiency, Experience with backend development and API integration, Hands-on experience with Docker, Hands-on experience with Kubernetes, Experience with REST APIs and OpenAPI (JSON/YAML), Knowledge of Keycloak, OAuth 2.0, OpenID Connect, Experience with version control, testing, debugging, CI/CD, Understanding of secure service-to-service communication, Experience with containerized environments, Degree in Computer Science or related field, Professional experience in software development or systems integration, EU citizenship, Located in Poland, Willingness to commute to Katowice office, Fluent English (B2/C1) 📃 Skills: Java, Spring, SpringBoot, REST, OpenAPI, JSON, YAML, Docker, Kubernetes, Keycloak, OAuth2, OpenID, CI/CD, Git 🏢 Description: Sopra Steria is one of the largest players in the tech industry in Europe, known for its consulting, digital services and software development. We operate in nearly 30 countries in the world, hiring more than 55,000 employees. The Polish branch, as the Global Delivery Center, operates in Katowice since 2007 and has been growing ever since. Currently, our team consists of around 1,000 specialists. Within the Digital Platform Services department, our teams specialize in areas such as cloud, operating systems, virtualization, databases, backup or storage, as well as networking and security. We also have 1st line support consultants who speak French and English, but also Italian, Spanish, Portuguese and German. The Application Services department is responsible for areas such as software development, data engineering, testing services, CRM, ITSM and ERP platform integrations, as well as application management for customers in Scandinavia, Benelux, France, Germany, Switzerland and the UK. Job Description We are looking for a Junior Software Engineer (Java) to join Sopra Steria Polska and support the development team responsible for integrating the Simpl-Open middleware into the Language Data Space (LDS) ecosystem. In this role, you will contribute to software development, technical integration, configuration, testing, deployment support, and operational troubleshooting. You will collaborate closely with senior engineers, architects, and technical leads as part of a cross-functional engineering team delivering interfaces and runtime integrations between LDS components and Simpl-Open services. Note that we can only offer cooperation to people who has EU citizenship, are located in Poland and are willing to commute to our office in Katowice, Poland. Responsibilities:​ Implement backend services, API integrations, and technical adapters under the guidance of senior engineers. Configure and integrate identity, authentication, authorization, and connector-related services. Develop and maintain integration logic for metadata exchange, catalogue interfacing, and validation flows. Support vocabulary-related interoperability, mappings, and configuration tasks. Prepare and execute technical tests, including integration tests, deployment verification, and regression checks. Investigate incidents, defects, and integration issues in development and test environments. Contribute to CI/CD activities, containerised deployments, and runtime support tasks. Produce concise technical documentation, configuration notes, and implementation handover material. Tech stack on the project: ​REST APIs, Keycloak, OAuth 2.0, OpenID Connect, Java, Spring Boot, JSON, YAML, OpenAPI, Docker, Kubernetes. Qualifications Must have requirements:​ Strong proficiency in Java and Spring Boot for backend service development. Hands‑on experience with containerization and orchestration tools, specifically Docker and Kubernetes. Experience with backend development and API-based integration. Good command of secure application integration and service-to-service communication. Experience with version control, debugging, testing, and software delivery practices. Familiarity with containerized environments and deployment support activities. Ability to analyze issues methodically and deliver reliable technical fixes. Willingness to learn, document work clearly, and contribute in a team-oriented delivery setting Experience working with REST APIs and API specification formats such as OpenAPI using JSON/YAML. Knowledge of authentication and authorization technologies, including Keycloak, OAuth 2.0, and OpenID Connect. Degree in Computer Science, Software Engineering, Information Systems, Telecommunications, or equivalent practical experience. Professional experience in software development, systems integration, platform engineering, or backend delivery. EU citizenship. Fluent English: B2/C1. Being open to occasional business trips abroad and visits to our office in Katowice. Nice to have requirements: Exposure to identity and access management platforms, metadata catalogues, semantic technologies, or data-platform delivery is an advantage. Experience with public-sector digital platforms, interoperability solutions, or EU-funded technical environments is also beneficial. Additional Information What we offer: • BENEFITS (UoP): Luxmed, Medicover Sport, Worksmile, educational platforms, languages learning platform, referral bonus, copyrights, life insurance, workation • DEVELOPMENT OPPORTUNITIES (UoP): certifications (paid by the company), conferences, Tech Lunches, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud) The recruitment process for this position consists of two stages: • a short phone call with a recruiter (30 min max) • one-hour long interview on Teams (with both general and technical questions) Salary range: UOP: 5 500 - 8 500 PLN gross/month. All information about salary range and its additional components will be provided during the 1st stage of recruitment process. At our organization, we are committed to fighting against all forms of discrimination. We foster a work environment that is inclusive and respectful of all differences.