Java Architect

🏢 Summary: Development role focused on building and modernizing a large-scale, microservice-based ticket sales platform running on AWS. The position involves backend development in .NET 7/8, creating new features and refactoring existing components within an Agile environment. It offers strong engineering practices, continuous integration, and collaboration within multiple backend squads. 🗂️ Requirements: 3–5 years of backend development experience, 3–5 years of commercial development on .NET platform, Strong knowledge of C#, Practical experience with AWS, Understanding of Clean Code and OOP, Knowledge of SOLID principles, Experience with WebAPI, Understanding of microservices architecture, Experience with unit testing (e.g., nUnit), Experience with mocking frameworks (e.g., Moq), Experience with dependency injection (e.g., Autofac), Knowledge of Entity Framework or NHibernate, Experience with DBMS systems, Understanding of Agile methodology, Good spoken English 📃 Skills: .NET, C#, AWS, REST, WebAPI, Microservices, nUnit, Moq, Autofac, EntityFramework, NHibernate, Postgres, DynamoDB, MSSQL, RDS, CI 🏢 Description: Client Our client is one of the regional leaders in the industry and is currently launching a new product—an international platform for ticket sales. The company’s annual revenue exceeds €100 million. Join a great company, not merely an individual project Project overview The client uses various tools to reach their customers, such as a mobile app, a responsive web application, or communicating with them directly through the call center. The system is big and modular (microservice-based), complying with a number of regulations. We provide APIs for different clients including the biggest Global Distribution Systems (GDSes). We also provide solutions that are labeled by more than half of Train Operating Companies (TOCs) in the UK. Our client is committed to ensuring that the system will be as modern as possible. It is based on a microservice architecture with the use of continuous integration, where a few hundred components operate independently of each other and can be used as they become available. This increases the modularity of the system and optimizes the use of the services. All components run on AWS. The backend also includes .NET 7/8, and REST API is actively modernized to Cloud Native solutions (RDS like Postgres, DynamoDB) from MSSQL. The client has a policy to work with the latest technology, and they move to newer versions when they are available. Team Several independent teams are working on the project. The goals of each team are limited to the part of the system they're working on. DataArt's specialists are working on the backend in several teams. The project has a team of 30+ .NET developers who work on the backend, divided into smaller squads. Position overview DataArt is currently helping develop new features and modernize the IT system of an independent online railroad ticket retailer. The project is a great place to work and grow for Middle engineers due to strong engineering practices (microservices, clean code, extensive unit testing, CI, dozens of production deployments weekly, the Scout Rule, code reviews, and an Agile approach), continuous technical refactoring, and a senior team that is willing to learn and share experience. Responsibilities Development of new features, expanding the ticket-selling system + refactoring 80-90% backend development 20-10% team meetings Requirements From 3 to 5 years of backend development experience From 3 to 5 years of experience in commercial software development on the .NET platform Understanding of and experience working with C# Good understanding of Cloud - AWS practical experience mandatory Strong skills in Clean Code and OOP Understanding of SOLID principles Knowledge of WebAPI Understanding of microservices architecture Experience with unit testing (like nUnit) and mocking frameworks (preferred Moq) Experience with dependency injection (preferred Autofac) Knowledge of Entity Framework or NHibernate Experience working with any DBMS system Understanding of Agile development methodology Good spoken English What We Offer: Vacation days : Up to 26 business days per year. 10 illness/special days off per year (fully paid, no medical papers needed) for all contract types Health and life insurance (Luxmed) MyBenefit platform with Multisport option Internal psychological support service English language classes from the first working day Access to external learning platforms : O’Reilly, LinkedIn Learning, Udemy, and a wide catalog of diverse internal training Flexible workplace : work from the office, from home, or choose a hybrid option Tech Skills Mentoring Program Opportunities to develop as a public speaker, mentor, or technical interviewer Fully paid idle (bench) when not involved in a project Certification reimbursement (AWS, GCP, Microsoft, etc.)

🏢 Summary: Senior .NET backend role modernizing and expanding a complex international rail-ticket sales platform. The work focuses on scalable microservices, REST APIs, cloud-hosted components, and collaboration on new features across cross-functional teams. 🗂️ Requirements: 7+ years of backend development experience, 7+ years of commercial .NET development experience, C# and .NET development experience, Clean Code and OOP expertise, WebAPI knowledge, Microservices architecture understanding, Unit testing and mocking framework experience, Dependency injection experience, Entity Framework or NHibernate knowledge, DBMS experience, SOLID principles understanding, Agile methodology understanding, Good spoken English 📃 Skills: .NET, C#, Microservices, REST, WebAPI, MSSQL, PostgreSQL, DynamoDB, AWS, NUnit, Moq, Autofac, EntityFramework, NHibernate, OOP, SOLID, Agile, JWT, OAuth, OpenID 🏢 Description: Project Overview The platform supports customer interactions through a mobile app, responsive web application, and call center. It is a complex, regulation-compliant system that provides APIs to multiple clients, including major Global Distribution Systems (GDSes). The system uses a microservice architecture and continuous integration. Hundreds of independently operating components can be used as they become available, increasing modularity and optimizing service use. All components run on AWS. Team Several independent teams work on the project, each focused on a defined part of the system. Backend specialists work within one of these teams. Position Overview Modernize and develop the IT system of an independent online retailer of railroad tickets. Technology Stack • .NET (latest versions) • Microservices • REST API • MSSQL, migrating to Postgres • DynamoDB Responsibilities • Refactor and expand the ticket-selling system • Develop, enhance, and maintain high-quality, scalable code • Collaborate with cross-functional teams to implement new features and achieve objectives Requirements • 7+ years of backend development experience • 7+ years of commercial software development experience on the .NET platform • Understanding of and experience with C# • Development experience with .NET • Strong Clean Code and OOP skills • Knowledge of WebAPI • Understanding of microservices architecture • Unit testing experience, such as NUnit, and mocking frameworks; Moq preferred • Dependency injection experience; Autofac preferred • Knowledge of Entity Framework or NHibernate • Experience with any DBMS • Understanding of SOLID principles • Understanding of Agile development methodology • Good spoken English Nice to Have • Knowledge of authentication basics, including authentication types, JWT, OAuth 2.0, and OpenID Connect Benefits • Up to 26 business vacation days per year • 10 fully paid illness or special days off per year for all contract types, with no medical documentation required • Health and life insurance (Luxmed) • MyBenefit platform with a Multisport option • Internal psychological support service • English language classes from the first working day • Access to O’Reilly, LinkedIn Learning, Udemy, and internal training • Flexible office, remote, or hybrid workplace options • Tech Skills Mentoring Program • Opportunities to develop as a public speaker, mentor, or technical interviewer • Fully paid bench time when not assigned to a project • Certification reimbursement for AWS, GCP, Microsoft, and other certifications

🏢 Summary: Senior .NET backend role focused on modernizing and expanding a large-scale international ticket sales platform built on microservices and AWS. The position involves developing scalable APIs and backend services, collaborating with cross-functional teams, and working with modern .NET technologies, distributed systems, and cloud infrastructure. 🗂️ Requirements: 7+ years backend development experience, 7+ years commercial .NET development, C# experience, Experience with .NET, Knowledge of Clean Code, Understanding of OOP, Knowledge of WebAPI, Experience with microservices architecture, Experience with unit testing, Experience with mocking frameworks, Experience with dependency injection, Knowledge of Entity Framework or NHibernate, Experience with DBMS systems, Understanding of SOLID principles, Understanding of Agile methodology, Spoken English 📃 Skills: .NET, C#, REST, MSSQL, Postgres, DynamoDB, AWS, WebAPI, nUnit, Moq, Autofac, EntityFramework, NHibernate, Microservices, OOP, SOLID, Agile, JWT, OAuth2, OpenId 🏢 Description: Client The company is one of the regional leaders in the industry and is currently launching their new product, an international platform for ticket sales. The company's annual income exceeds 100 million euros. Project overview The client uses various tools to reach their customers, such as a mobile app, a responsive web application, or communicating with them directly through the call center. The system is very complex, it must comply with a large number of regulations. We provide APIs for different clients including the biggest Global Distribution Systems (GDSes). The client is committed to ensuring that the system will be as modern as possible. It is based on microservice architecture with the use of continuous integration, where a few hundred components operate independently of each other and can be used as they become available. This increases the modularity of the system and optimizes the use of the services. All components run on AWS. Team Several independent teams are working on the project. The goals of each team are limited to the part of the system they're working on. Specialists are working on the back-end in one of the teams. Position overview Modernization and development of the IT system of an independent online retailer of railroad tickets. Technology stack - .NET (always working with newest versions) - microservices - REST API - MSSQL - migrating to Postgres, DynamoDB Responsibilities - Refactoring and expanding tickets selling system - Develop, enhance, and maintain high-quality, scalable code - Work collaboratively with cross-functional teams to support the implementation of new features and achieve their objectives Requirements - 7+ years of backend development experience - 7+ years of experience in commercial software development on the .NET platform - Understanding of and experience working with C# - Development experience with .NET - Strong skills in Clean Code and OOP - Knowledge of WebAPI - Understanding of microservices architecture - Experience with unit testing (like nUnit) and mocking frameworks (preferred Moq) - Experience with dependency injection (preferred Autofac) - Knowledge of Entity Framework or NHibernate - Experience working with any DBMS system - Understanding of SOLID principles - Understanding of Agile development methodology - Good spoken English Nice to have - Knowledge of basic Authentication: types of Authentication, JWT, OAuth 2.0, OpenId Connect What We Offer - Up to 26 business days vacation per year - 10 illness/special days off per year - Health and life insurance - MyBenefit platform with Multisport option - Internal psychological support service - English language classes from the first working day - Access to external learning platforms: O’Reilly, LinkedIn Learning, Udemy, and internal training - Flexible workplace: office, home, or hybrid work - Tech Skills Mentoring Program - Opportunities to develop as a public speaker, mentor, or technical interviewer - Fully paid idle time when not involved in a project - Certification reimbursement (AWS, GCP, Microsoft, etc.)

🏢 Summary: Senior .NET Backend Developer role focused on modernizing and expanding a complex international ticket sales platform built on microservices architecture and hosted on AWS. The position involves developing and maintaining scalable backend services, refactoring existing systems, and collaborating with cross-functional teams. The project uses the latest .NET technologies and supports integration with multiple external systems including GDS APIs. 🗂️ Requirements: 7+ years of backend development experience, 7+ years of commercial development experience on .NET platform, Strong proficiency in C# and .NET, Experience with RESTful WebAPI, Experience working with microservices architecture, Experience with unit testing frameworks (e.g., nUnit), Experience with mocking frameworks (e.g., Moq), Experience with dependency injection (e.g., Autofac), Experience with Entity Framework or NHibernate, Experience with DBMS systems, Understanding of Clean Code and OOP principles, Understanding of SOLID principles, Understanding of Agile methodology, Good spoken English 📃 Skills: .NET, C#, REST, WebAPI, Microservices, MSSQL, PostgreSQL, DynamoDB, AWS, nUnit, Moq, Autofac, EntityFramework, NHibernate, OOP, SOLID, Agile, JWT, OAuth2, OpenID 🏢 Description: Client The company is one of the regional leaders in the industry and is currently launching their new product, an international platform for ticket sales. The company's annual income exceeds 100 million euros. Join a great company, not merely an individual project Project overview The client uses various tools to reach their customers, such as a mobile app, a responsive web application, or communicating with them directly through the call center. The system is very complex, it must comply with a large number of regulations. We provide APIs for different clients including the biggest Global Distribution Systems (GDSes). Our client is committed to ensuring that the system will be as modern as possible. It is based on microservice architecture with the use of continuous integration, where a few hundred components operate independently of each other and can be used as they become available. This increases the modularity of the system and optimizes the use of the services. All components run on AWS. Team Several independent teams are working on the project. The goals of each team are limited to the part of the system they're working on. DataArt's specialists are working on the back-end in one of the teams. Position overview DataArt is currently helping to modernize and develop the IT system of an independent online retailer of railroad tickets. Technology stack .NET (always working with newest versions) microservices REST API MSSQL migrating to Postgres, DynamoDB Responsibilities Refactoring and expanding tickets selling system Develop, enhance, and maintain high-quality, scalable code Work collaboratively with cross-functional teams to support the implementation of new features and achieve their objectives Requirements 7+ years of backend development experience 7+ years of experience in commercial software development on the .NET platform Understanding of and experience working with C# Development experience with .NET Strong skills in Clean Code and OOP Knowledge of WebAPI Understanding of microservices architecture Experience with unit testing (like nUnit) and mocking frameworks (preferred Moq) Experience with dependency injection (preferred Autofac) Knowledge of Entity Framework or NHibernate Experience working with any DBMS system Understanding of SOLID principles Understanding of Agile development methodology Good spoken English Nice to have Knowledge of basic Authentication: types of Authentication, JWT, OAuth 2.0, OpenId Connect What We Offer: Vacation days : Up to 26 business days per year. 10 illness/special days off per year (fully paid, no medical papers needed) for all contract types Health and life insurance (Luxmed) MyBenefit platform with Multisport option Internal psychological support service English language classes from the first working day Access to external learning platforms : O’Reilly, LinkedIn Learning, Udemy, and a wide catalog of diverse internal training Flexible workplace : work from the office, from home, or choose a hybrid option Tech Skills Mentoring Program Opportunities to develop as a public speaker, mentor, or technical interviewer Fully paid idle (bench) when not involved in a project Certification reimbursement (AWS, GCP, Microsoft, etc.)

🏢 Summary: Backend .NET Developer role focused on modernizing and expanding a large-scale international ticket sales platform built on microservices and deployed on AWS. The position involves developing and refactoring a complex, regulation-compliant system that integrates with external clients via REST APIs. You will work on scalable backend services within a distributed architecture supporting web and mobile applications. 🗂️ Requirements: 7+ years backend development experience, 7+ years commercial .NET development, Strong C# knowledge, Experience with .NET WebAPI, Experience with microservices architecture, Experience with unit testing frameworks, Experience with dependency injection, Experience with ORM frameworks, Experience with relational or NoSQL databases, Knowledge of Clean Code, OOP, SOLID, Experience in Agile environment 📃 Skills: .NET, C#, WebAPI, REST, Microservices, MSSQL, PostgreSQL, DynamoDB, AWS, nUnit, Moq, Autofac, EntityFramework, NHibernate, OOP, SOLID, JWT, OAuth2, OpenIdConnect, Agile 🏢 Description: Client The company is one of the regional leaders in the industry and is currently launching their new product, an international platform for ticket sales. The company's annual income exceeds 100 million euros. Project overview The client uses various tools to reach their customers, such as a mobile app, a responsive web application, or communicating with them directly through the call center. The system is very complex, it must comply with a large number of regulations. We provide APIs for different clients including the biggest Global Distribution Systems (GDSes). Our client is committed to ensuring that the system will be as modern as possible. It is based on microservice architecture with the use of continuous integration, where a few hundred components operate independently of each other and can be used as they become available. This increases the modularity of the system and optimizes the use of the services. All components run on AWS. Team Several independent teams are working on the project. The goals of each team are limited to the part of the system they're working on. DataArt's specialists are working on the back-end in one of the teams. Position overview DataArt is currently helping to modernize and develop the IT system of an independent online retailer of railroad tickets. Technology stack .NET (always working with newest versions) microservices REST API MSSQL migrating to Postgres, DynamoDB Responsibilities Refactoring and expanding tickets selling system Develop, enhance, and maintain high-quality, scalable code Work collaboratively with cross-functional teams to support the implementation of new features and achieve their objectives Requirements 7+ years of backend development experience 7+ years of experience in commercial software development on the .NET platform Understanding of and experience working with C# Development experience with .NET Strong skills in Clean Code and OOP Knowledge of WebAPI Understanding of microservices architecture Experience with unit testing (like nUnit) and mocking frameworks (preferred Moq) Experience with dependency injection (preferred Autofac) Knowledge of Entity Framework or NHibernate Experience working with any DBMS system Understanding of SOLID principles Understanding of Agile development methodology Good spoken English Nice to have Knowledge of basic Authentication: types of Authentication, JWT, OAuth 2.0, OpenId Connect What We Offer: Vacation days : Up to 26 business days per year. 10 illness/special days off per year (fully paid, no medical papers needed) for all contract types Health and life insurance (Luxmed) MyBenefit platform with Multisport option Internal psychological support service English language classes from the first working day Access to external learning platforms : O’Reilly, LinkedIn Learning, Udemy, and a wide catalog of diverse internal training Flexible workplace : work from the office, from home, or choose a hybrid option Tech Skills Mentoring Program Opportunities to develop as a public speaker, mentor, or technical interviewer Fully paid idle (bench) when not involved in a project Certification reimbursement (AWS, GCP, Microsoft, etc.)

🏢 Summary: Senior DevOps Engineer role focused on designing, automating, and operating AWS-based cloud infrastructure for a large-scale data and AI platform. The position centers on Infrastructure as Code, platform reliability, and enabling secure, scalable analytics workloads using Databricks and Amazon Athena. You will work hands-on with cloud and DevOps technologies in a cross-functional data environment. 🗂️ Requirements: Experience as DevOps Engineer in production cloud environments, Strong hands-on experience with AWS services, Practical experience with Databricks in cloud environments, Experience designing and managing infrastructure with Terraform, Hands-on experience with Amazon Athena, Experience with CI/CD pipelines, Experience with Git-based workflows, Knowledge of Docker and Kubernetes, Experience working with data or analytics platforms, Professional proficiency in French, Professional working proficiency in English 📃 Skills: AWS, Databricks, Terraform, Athena, Docker, Kubernetes, Airflow, MLflow, CI/CD, Git, Python, Shell, Monitoring, Logging, Cloud 🏢 Description: Client The world’s largest sporting goods retailer, with a global team of 5,000+ experts across engineering, product, data, cloud, and cybersecurity, is building the largest digital sports platform—driving innovation from product design to customer experience and sustainability. Project overview The project focuses on a cloud-native data platform supporting large-scale analytics, AI, and data processing workloads.The platform leverages technologies such as Databricks and Amazon Athena, ensuring high standards for automation, scalability, security, and operational excellence. Team You will work in a cross functional team that includes DevOps engineers, data engineers, software developers, and product stakeholders. The team collaborates closely, sharing responsibility for infrastructure quality, deployment pipelines, and platform stability. Position overview We are looking for a Senior DevOps Engineer to design, automate, and operate cloud infrastructure supporting data and AI workloads. You will focus on infrastructure automation, platform reliability, and enabling data workloads to run securely and efficiently in the cloud. The role combines hands on technical work with close collaboration across engineering and data teams. Technology stack AWS, Databricks, Terraform, AWS Cloud services, Amazon Athena, Docker, Kubernetes, Airflow, MLflow, CI CD pipelines, Git based workflows, monitoring and logging tools, scripting languages Responsibilities Design, implement, and maintain cloud infrastructure on AWS using Infrastructure as Code practices Build and manage Terraform based infrastructure to support data and analytics workloads Support and optimize Databricks environments running on AWS Configure and manage Amazon Athena for querying and analytics use cases Develop, maintain, and improve CI CD pipelines for infrastructure and platform components Monitor platform performance, availability, and security and address operational issues Collaborate with data engineers and developers to translate platform requirements into technical solutions Troubleshoot infrastructure and deployment issues and perform root cause analysis Contribute to platform standardization, documentation, and continuous improvement initiatives Requirements Experience working as a DevOps Engineer in production cloud environments Strong hands on experience with AWS services Practical experience using Databricks in a cloud based environment Experience designing and managing infrastructure with Terraform Hands on experience with Amazon Athena Experience working with CI CD pipelines and Git based workflows Knowledge of containerization (Docker, Kubernetes) Experience working in data or analytics platforms Ability to communicate effectively in French in a professional context Professional working proficiency in English Nice to have Experience with data engineering or analytics platforms Exposure to multi-cloud architectures (AWS & GCP) Experience in enterprise-scale environments Strong interest in AI / Generative AI technologies Scripting or programming experience with Python, Shell, or similar languages Experience working in large scale or enterprise environments What We Offer: Vacation days : Up to 26 business days per year. 10 illness/special days off per year (fully paid, no medical papers needed) for all contract types Health and life insurance (Luxmed) MyBenefit platform with Multisport option Internal psychological support service English language classes from the first working day Access to external learning platforms : O’Reilly, LinkedIn Learning, Udemy, and a wide catalog of diverse internal training Flexible workplace : work from the office, from home, or choose a hybrid option Tech Skills Mentoring Program Opportunities to develop as a public speaker, mentor, or technical interviewer Fully paid idle (bench) when not involved in a project Certification reimbursement (AWS, GCP, Microsoft, etc.)

🏢 Summary: Senior Cloud Engineer role focused on designing, building, and modernizing scalable, secure AWS environments, including greenfield projects, migrations, and advanced Data/Big Data initiatives. The position emphasizes cloud-native architecture, Infrastructure as Code, CI/CD automation, container orchestration, and cost optimization. You will lead technical implementations and guide clients through best practices in AWS-based transformations. 🗂️ Requirements: Strong expertise in AWS services (EC2, EKS, Lambda, RDS, S3, IAM, VPC, API Gateway, CloudWatch), Experience designing infrastructure with Terraform and AWS CDK, Hands-on experience with CI/CD pipelines (GitHub Actions, GitLab, Jenkins, AWS CodePipeline), Experience in scripting or programming (Python, TypeScript, Go, Bash), Practical experience with Docker and Kubernetes/ECS/EKS, Knowledge of IAM, encryption, access control, and secure VPC architecture, Experience with monitoring tools (CloudWatch, Prometheus, Grafana, ELK/EFK), Understanding of AWS Well-Architected Framework, AWS certifications (Solutions Architect, DevOps Engineer, or Advanced Networking), Fluency in English and Polish 📃 Skills: AWS, EC2, EKS, Lambda, RDS, S3, IAM, VPC, APIGateway, CloudWatch, Terraform, CDK, GitHub, GitLab, Jenkins, CodePipeline, Python, TypeScript, Go, Bash, Docker, Kubernetes, ECS, Prometheus, Grafana, ELK, EFK, Route53, TransitGateway 🏢 Description: Ready for an adventure with AWS ? Join Us! As a leading AWS Partner in Europe , we support organizations at every stage of their cloud journey. Our strength comes from deep experience in cloud-native architectures and modernization initiatives. By joining our team, you’ll have the opportunity to shape secure, scalable platforms on AWS, work hands-on with advanced Data & AI technologies, and guide clients through transformative cloud projects. Here, your work will directly impact how businesses innovate, grow, and unlock new value through cloud technologies. As a Senior Cloud Engineer , you will have the opportunity to participate and lead projects across greenfield initiatives ( designing and building infrastructure from scratch), AWS migrations and modernization efforts, as well as advanced Data and Big Data projects . This role will allow you to develop your expertise in cloud-native architecture, security, automation (IaC, CI/CD, Kubernetes), and working with large-scale data platforms. Additionally, you will be involved in FinOps initiatives, gaining hands-on experience in cost optimization and efficient cloud environment management. Your Responsibilities: Architect and implement scalable, secure, and cost-effective cloud solutions on AWS , guiding clients through best practices in cloud-native design and modernization Design, build, and maintain AWS infrastructure using Infrastructure as Code ( IaC ) tools such as Terraform and AWS CDK Develop and manage CI/CD pipelines using tools like Github Actions, GitLab Pipelines, Jenkins or AWS CodePipeline , ensuring smooth and automated deployment processes Monitor, diagnose, and optimize system performance , ensuring high availability, fault tolerance, and scalability across distributed systems Manage containerized applications using Docker , and orchestrate workloads with Kubernetes, Amazon ECS, or EKS Implement robust security practices , including IAM policies, access control, encryption, and compliance auditing aligned with industry standards Deploy and manage observability stacks using tools such as Amazon CloudWatch, Prometheus, and Grafana for proactive monitoring and alerting Write code to automate tasks and workflows using scripting and programming languages such as Python, TypeScript, Go, or Bash Troubleshoot and resolve infrastructure and deployment issues , collaborating closely with development teams to ensure smooth delivery Maintain clear technical documentation , contribute to internal standards, and support knowledge sharing across teams Lead technical webinars , write blog posts , and publish case studies to share insights and promote thought leadership in the AWS ecosystem Represent the company at conferences and industry events, engaging with the cloud community and staying ahead of emerging trends Requirements: Strong AWS expertise across services such as EC2, EKS, Lambda, RDS, S3, IAM, VPC, API Gateway, CloudWatch with a solid grasp of the AWS Well-Architected Framework across design, security, and operational excellence IaC: you design, build, and manage AWS infrastructure using Terraform and AWS CDK, delivering repeatable, version-controlled, and auditable deployments Hands-on experience building and maintaining pipelines in GitHub Actions, GitLab Pipelines, Jenkins, or AWS CodePipeline to enable automated, zero-downtime releases and fast iteration Expierence in software development and scripting using Python, TypeScript, Go, or Bash Containerization & Orchestration: practical experience with Docker and orchestration via Kubernetes, Amazon ECS, or EKS to support scalable microservices architectures Security, Compliance & Networking: you implement IAM policies, encryption, access control, and design secure, high-availability network architectures using VPC, Transit Gateway, Route 53 , and hybrid connectivity solutions Experience with Amazon CloudWatch, Prometheus, Grafana, and ELK/EFK to enable proactive monitoring, alerting, and incident response Client-facing mindset - you can act as a trusted advisor to enterprise clients, translating business goals into scalable cloud-native solutions; you enjoy supporting cloud adoption, modernization, and digital transformation initiatives, and you're comfortable contributing to pre-sales and solutioning work alongside sales teams AWS Certifications - you already hold and actively pursue relevant AWS certifications (e.g., Solutions Architect, DevOps Engineer, Advanced Networking) that back up your hands-on expertise Fluency in both English and Polish , written and spoken Benefits: Continuous learning and growth – we invest in your development through internal training, knowledge-sharing sessions, and hands-on learning from real projects. We also support growth beyond the organization by actively engaging in the AWS Community, including conference talks and industry events. Training budget – dedicated funds to support certifications, courses, and professional development aligned with your career goals. Medical care package – comprehensive private healthcare to help you stay healthy and focused. Multisport card co-financing – because staying active matters, both in and outside of work. Language learning platform access – improve your language skills at your own pace, whenever it suits you. Flexible working hours & remote work – work when and where you’re most productive. Company events – time for integration and some fun. Stay up to date with us: Follow our blog regularly and participate in the events we organize.

🏢 Summary: The offer is for a Test Automation Engineer responsible for designing, implementing, and supporting automated testing frameworks for internal and client-facing systems. The role involves close collaboration with architecture, DevOps, and product teams to build robust API and UI automation solutions in Agile environments. The position requires strong experience in automation tools, programming, and QA process setup. 🗂️ Requirements: 3+ years of experience in Test Automation, Experience in two programming languages, Experience with at least two automation tools, Experience in API and UI automation, Familiarity with Git or Bitbucket, Understanding of RESTful web services, Knowledge of automated testing principles and practices, Ability to set up QA process from scratch, Experience working in Agile (Scrum or Kanban), Spoken English 📃 Skills: Java, JavaScript, C#, Python, Playwright, Selenide, Selenium, Cypress, API, UI, Git, Bitbucket, REST, Scrum, Kanban 🏢 Description: Position overview DataArt is a global software engineering firm and a trusted technology partner for market leaders and visionaries. Our world-class team designs and engineers data-driven, cloud-native solutions to deliver immediate and enduring business value. We promote a culture of radical respect, prioritizing your personal well-being as much as your expertise. We stand firmly against prejudice and inequality, valuing each of our employees equally. We respect the autonomy of others before all else, offering remote, onsite, and hybrid work options. Our Learning and development centers, R&D labs, and mentorship programs encourage professional growth. Our long-term approach to collaboration with clients and colleagues alike focuses on building partnerships that extend beyond one-off projects. We provide the ability to switch between projects and technology stacks, creating opportunities for exploration through our learning and networking systems to advance your career. Responsibilities Implement and support test automation for internal and client facing systems Collaborate with Architecture, InfoSec and DevOps teams to design test automation frameworks for these systems Collaborate with business analysts, developers and product owners to develop comprehensive test automation Build reusable test frameworks Analyze requirements and user stories to build robust automated solutions Follow best coding practices Requirements 3+ years of experience in Test Automation Automation experience in two programming languages (e.g. Java, JavaScript, C#, Python) Experience with at least two Automation Tools (e.g. Playwright, Selenide, Selenium, Cypress etc.) Experience in both: API and UI Automation Familiarity with version control systems such as Git and Bitbucket Solid understanding of RESTful web services. Understanding of automated testing principles and practices Ability and knowledge of how to set up the QAA process from scratch Familiarity with Agile methodologies (Kanban, Scrum) and experience working in Agile teams Spoken English

🏢 Summary: Backend engineering role focused on designing, building, and operating scalable, event-driven services on Microsoft Azure. The position covers full ownership of backend systems, including architecture, infrastructure as code, container orchestration, CI/CD automation, and data management. It emphasizes microservices, distributed systems, and cloud-native DevOps practices. 🗂️ Requirements: Extensive experience in backend development with C# and .NET, Strong practical knowledge of Microsoft Azure core services, Hands-on experience with AKS and APIM, Experience with distributed messaging systems (Azure Service Bus or Kafka), Proven experience with microservices and distributed systems, Experience with relational and NoSQL databases, Hands-on experience with CI/CD automation tools, Practical experience with Terraform and Infrastructure as Code 📃 Skills: C#, .NET, Azure, AKS, APIM, Kafka, ServiceBus, Terraform, Kubernetes, CI/CD, SQL, CosmosDB, Microservices, AppInsights, LogAnalytics 🏢 Description: Key Responsibilities: End-to-End Product Engineering: Own the entire lifecycle of backend services and APIs—from initial architecture design and coding to comprehensive testing and production deployment. Event-Driven Ecosystems: Architect and maintain highly scalable, asynchronous solutions on Microsoft Azure , utilizing Azure Service Bus or Kafka for robust messaging. Infrastructure as Code (IaC): Orchestrate and manage cloud environments using Terraform , ensuring all infrastructure aligns with enterprise security and performance benchmarks. Container Orchestration: Deploy and fine-tune containerized workloads within Azure Kubernetes Service (AKS) environments. DevOps Ownership: Drive the automation of build, test, and release cycles, taking full accountability for the CI/CD pipelines of your assigned services. Data Persistence & Management: Design efficient data storage strategies (SQL, Cosmos DB, Storage) and expose secure, high-performance interfaces through Azure API Management (APIM) . Strategic Collaboration: Partner with architects and platform teams to monitor system health via App Insights/Log Analytics, ensuring continuous reliability and optimization. Required Skills & Experience: Technical Mastery: Extensive professional experience in backend development using C# and the .NET ecosystem . Cloud Expertise: Deep practical knowledge of Microsoft Azure core services, specifically AKS, APIM, and distributed messaging platforms. Architectural Literacy: Proven ability to work with Microservices and distributed systems, including sophisticated data modeling in both relational and NoSQL databases. DevOps Mindset: Hands-on proficiency with CI/CD automation tools and a strong commitment to Infrastructure as Code (Terraform) . Agile Adaptability: Experience thriving in fast-paced, iterative delivery teams with a focus on solving complex technical challenges. Impactful Communication: Ability to articulate technical concepts clearly to both technical and non-technical stakeholders while adhering to best practices in documentation.

🏢 Summary: The offer is for a senior DevOps/Cloud Engineer to lead and support enterprise cloud migration initiatives in Azure, focusing on CI/CD automation, infrastructure as code, and secure, scalable cloud environments. The role involves managing Azure-based platforms, optimizing performance and security, and collaborating with cross-functional teams to modernize and support business-critical systems. It also includes working with hybrid cloud environments and leveraging AI-powered tools to enhance software delivery processes. 🗂️ Requirements: 5+ years in DevOps, Cloud Engineering, or Platform Engineering, Strong hands-on experience with Microsoft Azure in production environments, Experience building and maintaining Azure DevOps CI/CD pipelines (YAML), Hands-on experience with Azure App Services, WebJobs, and Azure Functions, Knowledge of Azure API Management, Application Gateway, and WAF, Experience with Terraform and Infrastructure as Code practices, Understanding of .NET application hosting environments (.NET 4.8–.NET 8+), Experience with hybrid or multi-cloud environments (Azure and AWS), Experience with secrets management and identity solutions, Experience in enterprise migration or modernization programs, English proficiency minimum B2, Work permit and residence in the European Union 📃 Skills: Azure, AzureDevOps, CI/CD, YAML, Terraform, .NET, APIM, WAF, AppServices, WebJobs, AzureFunctions, ApplicationGateway, KeyVault, ManagedIdentity, AWS, IaC 🏢 Description: 🟣 You will be: supporting and driving cloud migration initiatives across business-critical systems, designing, building, and maintaining CI/CD pipelines in Azure DevOps, managing and optimizing Azure-based infrastructure and application environments, automating infrastructure provisioning and configuration using Infrastructure as Code practices, collaborating with development and architecture teams to ensure reliable and scalable deployments, improving platform security, performance, and operational efficiency, supporting application services and cloud-native solutions throughout the software delivery lifecycle. 🟣 Your profile: 5+ years of experience in DevOps, Cloud Engineering, or Platform Engineering roles, strong hands-on experience with Microsoft Azure, including production-grade environments, proven experience building and maintaining Azure DevOps CI/CD pipelines (YAML-based), hands-on experience with Azure App Services, WebJobs, and Azure Functions, strong knowledge of Azure API Management (APIM), Application Gateway, and WAF, experience with Terraform (azurerm provider) and Infrastructure as Code practices, understanding of .NET-based application hosting environments (.NET 4.8–.NET 8+), experience working with hybrid or multi-cloud environments (Azure + AWS), familiarity with secrets management and identity solutions (Key Vault, Managed Identity), experience working in enterprise migration or modernisation programmes, strong analytical, troubleshooting, and problem-solving skills, good communication skills and ability to work in cross-functional teams, good command of English (min. B2), practical experience using AI-powered assistants (e.g. Claude Code, GitHub Copilot, Cursor) to improve productivity, quality, or decision-making in software delivery. 🟣 Nice to have: experience with AWS migration programmes (e.g. MAP or similar initiatives), familiarity with React, Node.js, or EventStoreDB in hybrid architectures, exposure to FinOps practices and cloud cost optimisation initiatives, experience integrating AI tools into engineering workflows (CI/CD, IaC, automation), experience with enterprise-scale policy governance (Azure Policy, guardrails), experience applying GenAI in a more structured way within the SDLC, including defined workflows, prompt patterns, or tool integrations embedded into daily work, interest in and familiarity with emerging AI-driven practices (e.g. agent-based workflows, automation patterns, AI-augmented development), with a willingness to explore and experiment beyond standard approaches. Work from the European Union region and a work permit are required 🟣 Recruitment Process: CV review – HR Interview – Technical Interview - Client Interview – Decision 🎁 Benefits 🎁 ✍ Development: development budgets of up to 6,800 PLN, we fund certifications e.g.: AWS, Azure, access to Udemy, O'Reilly (formerly Safari Books Online) and more, events and technology conferences, technology Guilds, internal training, Xebia Upskill. 🩺 We take care of your health: private medical healthcare, multiSport card - we subsidise a MultiSport card, mental Health Support. 🤸‍♂️ We are flexible: B2B or employment contract, contract for an indefinite period.