Senior Quality Engineer | C# / Node.js & IoT Microservices x 1 FTE

🏢 Summary: Backend engineering role focused on building scalable IoT platform solutions and middleware in a distributed cloud environment. The position involves developing REST APIs, WebSocket communication, asynchronous integrations, and data models for mobile and web systems. Work includes cloud deployments, CI/CD, and maintaining high software quality through testing practices. 🗂️ Requirements: Strong commercial experience with C#/.NET 6 or Node.js with TypeScript, Understanding of microservices architecture, Knowledge of REST standards, Experience with event-driven systems, Hands-on experience with RabbitMQ or Azure Service Bus, Experience with relational databases (SQL Server or PostgreSQL), Experience with NoSQL databases (MongoDB, Redis, or Cosmos DB), Familiarity with Azure cloud environment, Experience with Docker and Kubernetes, Experience with Linux-based systems, Experience with CI/CD pipelines, Experience with TDD, unit testing, and integration testing 📃 Skills: C#, NET, Node.js, TypeScript, REST, WebSocket, RabbitMQ, Azure, SQL, PostgreSQL, SQLServer, MongoDB, Redis, CosmosDB, Docker, Kubernetes, Linux, CI/CD, TDD, Microservices 🏢 Description: Senior Backend Engineer (C#/ Node.js) -  IoT Projects We are looking for an experienced Backend Developer to join a team building modern IoT platform solutions and scalable backend services. The role focuses on developing API and middleware layers used by mobile, web, and internal systems within a distributed cloud-based environment. Additional information Work mode: Hybrid (Wrocław) or fully remote Rate: 110 - 140 PLN/h Responsibilities Design and develop backend applications and middleware components for scalable IoT solutions. Build and maintain REST APIs, WebSocket communication, and asynchronous integrations. Create and optimize data models using relational and NoSQL databases. Cooperate on cloud deployments, CI/CD processes, and infrastructure automation. Ensure high software quality through TDD, unit testing, and integration testing. Work closely with cross-functional teams in an Agile environment. Requirements Strong commercial experience with either C#/.NET 6 or Node.js with TypeScript. Very good understanding of microservices architecture, REST standards, and event-driven systems. Hands-on experience with message brokers such as RabbitMQ or Azure Service Bus. Practical knowledge of relational databases (SQL Server/PostgreSQL) and NoSQL solutions (MongoDB, Redis, Cosmos DB). Familiarity with cloud and containerized environments, including Azure, Docker, Kubernetes, or Linux-based systems. Experience working with CI/CD pipelines and modern deployment practices. Good communication skills and fluent English. Nice to have Knowledge of Git workflows and version control best practices. Experience with monitoring and logging tools in cloud environments. Familiarity with Agile/Scrum methodologies. Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams. Discover our latest job openings: https://en.antal.pl/candidates Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: Senior Software Security Engineer role in a global banking cybersecurity initiative focused on building secure, scalable cloud-native backend platforms. The position combines hands-on development in Python and/or Node.js with ownership of production services on GCP and Kubernetes. It involves designing modern authentication solutions and distributed systems at enterprise scale. 🗂️ Requirements: Strong hands-on experience with Python (Django) and/or Node.js (TypeScript/NestJS), Experience building production-grade backend services, Experience designing and developing distributed systems, Hands-on experience with GCP services, Strong knowledge of Infrastructure as Code and Terraform, Experience designing scalable and secure cloud-native architectures, Solid knowledge of Kubernetes and containerized environments, Understanding of Zero Trust and modern security engineering practices, Experience with PostgreSQL performance optimization, Experience with event-driven architectures 📃 Skills: Python, Django, NodeJS, TypeScript, NestJS, GCP, Terraform, Kubernetes, PostgreSQL, OAuth2, OpenID, IaC, ZeroTrust, DistributedSystems, CloudNative, Containers, EventDriven, Observability, Automation, Security 🏢 Description: 📍 Location: Kraków (hybrid: 2 days in the office per week) 📄 B2B: 200 - 250 PLN / h 🏦 Industry: Banking We are currently looking for a Senior Software Security Engineer (Node.js and/or Python) to join a strategic global banking initiative focused on building modern, secure and scalable backend platforms within the cybersecurity domain. The role combines hands-on software engineering, cloud-native architecture and security engineering, with strong ownership of production-grade services and engineering excellence. You will work within international cross-functional teams responsible for developing next-generation security products and services, contributing to the migration from vendor-based platforms toward open-source and cloud-native solutions deployed at enterprise scale. Key responsibilities: Design, develop and maintain secure, scalable backend services using Python, Node.js and cloud-native technologies. Build and optimize distributed systems running on Google Cloud Platform and Kubernetes environments. Develop high-quality production code with strong focus on reliability, observability and automation. Own the lifecycle of backend services on GCP, ensuring resilience, performance and cost efficiency. Design and implement OAuth2/OpenID Connect authentication and authorization solutions. Contribute to event-driven architectures and highly concurrent backend systems. Collaborate closely with engineering and platform teams to deliver secure and scalable solutions. Mentor engineers and actively contribute to engineering best practices and technical excellence. Drive automation initiatives to improve developer productivity and operational efficiency. Stay up to date with modern backend and cloud technologies, sharing knowledge across teams. Requirements: Strong hands-on experience with Python (Django) and/or Node.js (Typescript/NestJS). Experience building production-grade backend services and distributed systems. Hands-on experience with GCP services. Strong understanding of Infrastructure as Code and Terraform. Experience designing scalable, secure and observable cloud-native architectures. Solid knowledge of Kubernetes and containerized environments. Understanding of Zero Trust and modern security engineering practices. Experience with PostgreSQL performance optimization and event-driven architectures. Strong engineering mindset with focus on automation, quality and operational excellence. Ability to work effectively in cross-functional and international engineering teams. Nice to have: Experience with Go or Rust. Contributions to open-source projects, technical blogging or public GitHub portfolio. Broad full-stack understanding with backend specialization. Passion for solving complex engineering and security challenges at scale. What we offer: Opportunity to work on strategic, global cybersecurity and cloud engineering initiatives. Collaboration with highly experienced international engineering teams. Long-term cooperation within a stable enterprise-scale environment. Private healthcare package (LuxMed). Multisport card. Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams. Discover our latest job openings: https://en.antal.pl/candidates Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: Senior Software Security Engineer role focused on building secure, scalable backend platforms within a global banking cybersecurity initiative. The position combines hands-on development in Node.js and/or Python with cloud-native architecture on GCP and Kubernetes, emphasizing security, automation and production-grade reliability. You will design and own distributed, event-driven services while driving engineering excellence and cloud transformation. 🗂️ Requirements: Strong hands-on experience with Python (Django) and/or Node.js (TypeScript, NestJS), Experience building production-grade backend services, Experience with distributed systems, Hands-on experience with Google Cloud Platform, Experience with Infrastructure as Code, Practical knowledge of Terraform, Strong knowledge of Kubernetes, Experience with containerized environments, Experience designing secure, scalable cloud-native architectures, Knowledge of OAuth2 and OpenID Connect, Understanding of Zero Trust principles, Experience with PostgreSQL performance optimization, Experience with event-driven architectures 📃 Skills: Python, Django, Node.js, TypeScript, NestJS, GCP, Kubernetes, Terraform, OAuth2, OpenID, PostgreSQL, Docker, IaC, ZeroTrust 🏢 Description: 📍 Location: Kraków (hybrid: 2 days in the office per week) 📄 B2B: 200 - 250 PLN / h 🏦 Industry: Banking We are currently looking for a Senior Software Security Engineer (Node.js and/or Python) to join a strategic global banking initiative focused on building modern, secure and scalable backend platforms within the cybersecurity domain. The role combines hands-on software engineering, cloud-native architecture and security engineering, with strong ownership of production-grade services and engineering excellence. You will work within international cross-functional teams responsible for developing next-generation security products and services, contributing to the migration from vendor-based platforms toward open-source and cloud-native solutions deployed at enterprise scale. Key responsibilities: Design, develop and maintain secure, scalable backend services using Python, Node.js and cloud-native technologies. Build and optimize distributed systems running on Google Cloud Platform and Kubernetes environments. Develop high-quality production code with strong focus on reliability, observability and automation. Own the lifecycle of backend services on GCP, ensuring resilience, performance and cost efficiency. Design and implement OAuth2/OpenID Connect authentication and authorization solutions. Contribute to event-driven architectures and highly concurrent backend systems. Collaborate closely with engineering and platform teams to deliver secure and scalable solutions. Mentor engineers and actively contribute to engineering best practices and technical excellence. Drive automation initiatives to improve developer productivity and operational efficiency. Stay up to date with modern backend and cloud technologies, sharing knowledge across teams. Requirements: Strong hands-on experience with Python (Django) and/or Node.js (Typescript/NestJS). Experience building production-grade backend services and distributed systems. Hands-on experience with GCP services. Strong understanding of Infrastructure as Code and Terraform. Experience designing scalable, secure and observable cloud-native architectures. Solid knowledge of Kubernetes and containerized environments. Understanding of Zero Trust and modern security engineering practices. Experience with PostgreSQL performance optimization and event-driven architectures. Strong engineering mindset with focus on automation, quality and operational excellence. Ability to work effectively in cross-functional and international engineering teams. Nice to have: Experience with Go or Rust. Contributions to open-source projects, technical blogging or public GitHub portfolio. Broad full-stack understanding with backend specialization. Passion for solving complex engineering and security challenges at scale. What we offer: Opportunity to work on strategic, global cybersecurity and cloud engineering initiatives. Collaboration with highly experienced international engineering teams. Long-term cooperation within a stable enterprise-scale environment. Private healthcare package (LuxMed). Multisport card. Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams. Discover our latest job openings: https://en.antal.pl/candidates Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: Senior Backend Engineer role focused on designing and building scalable Java-based microservices and REST APIs for a global payments platform. The position involves modernizing legacy systems into cloud-native architectures and improving reliability and performance in a Kubernetes environment. You will work on high-scale international payment solutions within a hybrid setup in Kraków. 🗂️ Requirements: Strong experience with Java 11+, Experience building microservices, Experience developing REST APIs, Hands-on experience with Kubernetes, Solid knowledge of SQL and relational databases, Experience with Git, Experience working in Unix/Linux environments, Understanding of DevOps practices 📃 Skills: Java, Spring, Kubernetes, SQL, Oracle, Git, Linux, Unix, REST, Microservices, CI/CD, React 🏢 Description: Senior Software Engineer (Backend) – Java 📍 Kraków | Hybrid (2x day per week from the office) We are looking for an experienced Senior Software Engineer (Backend) to join a global technology team working on a large-scale payments platform that enables businesses and customers worldwide to move funds quickly and securely across markets. The platform supports international transfers, supplier payments, payroll processing, and payments to authorities across multiple channels. You will contribute to building modern, scalable systems used globally. What you will be doing • Design, develop and maintain backend services and microservices in Java • Build scalable REST APIs supporting a global payments platform • Contribute to the migration from legacy systems to a modern microservices architecture • Work with Kubernetes-based platforms and cloud-native environments • Improve system reliability, performance and Straight‑Through‑Processing (STP) capabilities • Collaborate with international engineering teams, DevOps and product stakeholders • Contribute to test automation and modern CI/CD practices What we are looking for • Strong experience with Java (11+) , ideally Java 17+ • Experience building microservices and REST APIs • Hands-on experience with Kubernetes • Solid knowledge of SQL and relational databases (Oracle is a plus) • Experience with Git and modern development workflows • Comfortable working in Unix/Linux environments • Understanding of DevOps ways of working Nice to have: • Experience with Spring / Spring Boot • Experience with React or modern frontend technologies • Familiarity with application monitoring / observability tools What we offer • Opportunity to work on a global, high-scale payments platform • Collaboration with international engineering teams • Modern technology stack and cloud-native environment • Hybrid work model in Kraków Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

🏢 Summary: Senior Software Engineer role focused on designing, building, and supporting scalable applications in the financial domain within a small Agile team. The position covers the full software development lifecycle, including analysis, design, implementation, testing, deployment, and production support. It emphasizes microservices and event-driven architecture with strong engineering standards and ownership. 🗂️ Requirements: Minimum 5 years of professional software development experience, Strong knowledge of Java, Strong knowledge of Python, Hands-on experience with Spring Framework, Understanding of SOLID principles, Knowledge of Clean Code practices, Experience with DDD and BDD, Experience with SQL and NoSQL databases, Experience with PostgreSQL, Experience with MongoDB, Familiarity with microservices architecture, Experience with event-driven or streaming systems 📃 Skills: Java, Python, Spring, SQL, NoSQL, PostgreSQL, MongoDB, Microservices, EventDriven, SOLID, CleanCode, DDD, BDD 🏢 Description: Senior Software Engineer 📍 Kraków, Poland (hybrid – min. 2 days/week in the office) 🕒 Full-time | B2B 190-230PLN netto/h About the Role We are looking for an experienced Senior Software Engineer to join a global technology team delivering innovative digital solutions in the financial domain. In this role, you will work closely with a Development Manager and a small, cross-functional team to build and maintain scalable applications. You will be involved in the entire software development lifecycle – from analysis and design to deployment and production support. This is a hands-on role in a collaborative environment where teams take full ownership: “you build it, you support it.” Your Responsibilities Work in a small Agile team (4–6 people) with a dedicated Product Owner Translate business requirements into user stories and deliver them iteratively to production Design and implement high-quality, scalable solutions aligned with technical standards Participate in all stages of the development lifecycle, including testing and production support Identify and manage technical debt, balancing it with new feature development Collaborate closely with team members through pairing and knowledge sharing Contribute to a culture of continuous improvement and experimentation Required Skills & Experience Minimum 5 years of professional software development experience Strong knowledge of Java and Python Hands-on experience with Spring Framework Solid understanding of software engineering principles ( SOLID, Clean Code, DDD, BDD ) Experience with SQL and NoSQL databases (e.g., PostgreSQL, MongoDB) Familiarity with microservices architecture Experience with event-driven systems / streaming technologies Strong communication skills in English (written and spoken) Ability to collaborate, mentor, and support other engineers Nice to Have Experience with JavaScript (Vue.js) Background in AI / Machine Learning / NLP / Data Science Knowledge of: Prompt Engineering LangChain / LangGraph Clean Architecture What You Can Expect Work in a globally distributed engineering organization Small, self-organizing teams with strong ownership Continuous delivery approach (no traditional sprints – focus on flow and frequent releases) Opportunity to work on cutting-edge AI-driven solutions Exposure to modern technologies and experimentation with new tools A collaborative culture where learning, pairing, and knowledge sharing are encouraged Benefits: Multisport Card and Luxmed Who We’re Looking For We value engineers who: Are curious, adaptable, and open to experimentation Enjoy solving complex problems with technology Take ownership and responsibility for their work Are comfortable stepping outside their specialization when needed See failure as a learning opportunity Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

🏢 Summary: Senior QA Automation Engineer role focused on building and maintaining automated testing solutions in Java for complex enterprise systems. The position involves developing and enhancing a custom internal automation framework while ensuring software quality across components and integrations. The role combines automated and manual testing within a collaborative, international project environment. 🗂️ Requirements: Strong Java programming skills, Commercial experience with test automation frameworks, Experience developing and maintaining automated tests, Experience contributing to automation frameworks, Solid knowledge of test design techniques, Experience with test management practices, Hands-on experience with Jira, Hands-on experience with Confluence, Experience with automated and manual testing, Fluent English (B2+/C1) 📃 Skills: Java, Jira, Confluence, Automation, Testing, SDLC 🏢 Description: 📍 Location: Warsaw (remote with occasional visits to the office) 📄 B2B Contract: 125-145 PLN/h We are looking for a Senior QA Automation Engineer to join an international technology project delivered for a large enterprise organization. The role focuses on building and maintaining automated testing solutions for complex systems while collaborating closely with development teams and business stakeholders. The successful candidate will work on test automation in Java, contribute to the evolution of a custom internal automation framework, and support the delivery of high-quality software across multiple system components and integrations. Key Responsibilities: Develop and maintain automated tests using Java. Contribute to the development and improvement of the internal test automation framework. Design, document, and maintain test scenarios and test cases. Execute component, system, and integration tests to ensure software quality. Perform manual testing when necessary. Manage test execution, defects, and documentation using Jira and Confluence. Collaborate closely with developers, analysts, and business stakeholders to ensure high-quality delivery. Participate in testing activities throughout the software development lifecycle. Requirements: Strong Java programming skills. Commercial experience with test automation frameworks . Solid understanding of test design techniques and test management practices. Hands-on experience with Jira and Confluence. Experience working with both automated and manual testing. Strong analytical and troubleshooting skills. Excellent communication and collaboration skills. Fluent English (B2+/C1). Nice to Have: Experience working with integration-heavy or event-driven systems. Background in Supply Chain, Logistics, or Freight Forwarding systems. What We Offer: Long-term cooperation on a stable enterprise project. Opportunity to contribute to the development of an internal automation framework. Work in a collaborative environment with experienced developers and QA engineers. Flexible remote work model with occasional office visits in Warsaw. Private medical care (LuxMed) and Multisport card. Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

🏢 Summary: Senior Test Engineer role focused on end-to-end testing of complex event-driven and data platform solutions within supply chain systems. The position involves validating data integrations, mappings, and cross-system flows in an international Agile environment, with growing responsibility for test automation. Remote work with occasional visits to Warsaw office, B2B contract. 🗂️ Requirements: Strong knowledge of component, integration, system, and E2E testing methodologies, Hands-on experience testing event-driven systems, Experience with Kafka-based architectures, Experience with data platforms or data pipelines, Experience with integration-heavy systems, Experience working in Agile/Scrum, Proficiency with JIRA, Experience with TestRail or Xray, Ability to trace defects across complex systems 📃 Skills: Kafka, JIRA, TestRail, Xray, Agile, Scrum, Java 🏢 Description: 📍 Location: Remote (with occasional visits to Warsaw office) 💰 B2B: 115–135 PLN/h We are looking for a proactive and detail-oriented Senior Test Engineer to join a team working on complex supply chain and data platform solutions. The role involves end-to-end testing of event-driven systems and data integrations in an international environment, with strong focus on data quality, mappings, and cross-system flows. Responsibilities • Lead and manage end-to-end testing activities across integration and data platform components • Design, execute, and maintain test scenarios for event-driven architectures (Kafka-based systems) • Validate data mappings, transformations, and end-to-end business processes across multiple systems • Investigate defects by tracing issues across integration flows, mapping logic, components, and data quality • Collaborate closely with developers, SMEs, and business stakeholders to ensure high-quality releases • Own and maintain test documentation, test plans, and test cases • Drive defect triage and resolution discussions with clear and structured communication • Use tools such as JIRA and TestRail/Xray for test management and reporting • Contribute to and gradually take ownership of test automation initiatives • Continuously improve test strategy, processes, and test coverage Requirements • Strong understanding of testing methodologies (component, integration, system, E2E testing) • Hands-on experience testing event-driven systems (Kafka) • Experience with data platforms, data pipelines, or integration-heavy systems • Experience working in Agile/Scrum environments • Proficiency with JIRA (defect tracking, workflows) • Experience with test management tools (TestRail, Xray or similar) • Strong analytical skills with ability to trace defects across complex systems • Excellent communication and stakeholder management skills Nice to Have • Strong experience in supply chain domain, preferably with freight forwarding systems • Experience or willingness to learn test automation (Java or similar) • Exposure to custom test frameworks • Experience validating large-scale data transformations or mapping specifications What We’re Looking For • A curious and investigative mindset with focus on edge cases and defect detection • Ability to analyze business flows and identify technical root causes • Strong ownership and accountability for test quality and delivery • Hands-on approach – comfortable with manual testing today and automation development tomorrow • Proactive attitude, challenge-driven mindset, and focus on continuous improvement We Offer • Opportunity to work on complex international data and integration projects • Remote work model with occasional visits to Warsaw office • Collaboration with experienced technical and business teams • Stable long-term cooperation • Private healthcare (LuxMed) • Multisport card Co zyskasz dzięki aplikacji na ofertę Antal? Gdy Twoja aplikacja zostanie rozpatrzona pozytywnie (zostaniesz zaproszony/a do procesu), otrzymasz wsparcie Konsultanta/Konsultantki, który/a utrzyma z Tobą stały kontakt (mailowo lub telefonicznie), pomoże Ci przygotować się do rozmowy rekrutacyjnej z przyszłym pracodawcą oraz zatroszczy się o jakość procesu rekrutacyjnego, w którym aktualnie bierzesz udział. Kim jesteśmy? Jesteśmy liderem rekrutacji specjalistów i menedżerów oraz doradztwa w obszarze HR. Marka obecna jest w 35 krajach, w Polsce działa od 1996 roku. Przez ten czas zbudowaliśmy wiele karier kandydatów, dzięki elastycznemu i kompleksowemu podejściu do wszystkich rekrutacji. Antal tworzy ponad 130 profesjonalnych konsultantów ds. rekrutacji, którzy są oni nie tylko skutecznymi rekruterami, ale także wykwalifikowanymi doradcami, specjalizującymi się zarówno w zakresie wybranego sektora, jak i stanowiska.

🏢 Summary: Hybrid B2B opportunity for a Senior or Lead Software Engineer focused on Big Data platforms within Risk & Compliance for a global banking environment. The role involves building scalable data processing solutions, ETL pipelines, and analytics platforms using Spark and Java/Scala in an Agile international team. Engineers will collaborate with architects, analysts, and data scientists while contributing to CI/CD, TDD, and large-scale surveillance and risk management systems. 🗂️ Requirements: Commercial experience with Apache Spark, Strong programming skills in Java, Strong programming skills in Scala, Experience building large-scale data processing solutions, Knowledge of software engineering best practices, Experience working in Agile environments, Ability to collaborate in international teams, Strong communication skills, English level B2 or higher 📃 Skills: Spark, Java, Scala, Hadoop, YARN, HDFS, Spring, Airflow, SQL, Elasticsearch, Python, GCP, Maven, Git, CI/CD, TDD, ETL, Agile 🏢 Description: Senior Software Engineer / Lead Software Engineer (Big Data) 📍 Location: Kraków, Poland 🏢 Work mode: hybrid, 2 days per week from the office 💰 Rate: 180-250 PLN/h B2B About the Project: Join a global technology team within the Risk & Compliance domain of a leading international banking organization. The team develops cutting-edge solutions that help protect customers and the business from financial crime, market abuse, identity threats, regulatory risks, and other compliance-related challenges. You will become part of a global Agile team responsible for building modern data platforms and big data solutions that support large-scale surveillance and risk management initiatives. This role offers the opportunity to work on highly impactful systems, collaborating with engineers, architects, analysts, and data scientists from around the world. Your Responsibilities: Collaborate with Product Owners and Business Analysts to understand business and stakeholder requirements Design, develop, and maintain data processing components and storage solutions Onboard new data sources and build scalable ETL/data processing pipelines Work closely with Data Scientists to productionize analytical models and solutions Develop software following CI/CD and Test-Driven Development (TDD) practices Partner with Solution Architects to validate and implement technical designs Perform unit testing and ensure high code quality standards Contribute to the continuous improvement of development processes and engineering practices Requirements: Must Have: Strong commercial experience with Apache Spark Solid programming experience in Java/Scala Experience building large-scale data processing solutions Understanding of software engineering best practices and Agile methodologies Strong communication skills and ability to work effectively in an international team English proficiency at B2 level or higher Nice to Have: Experience with Apache Hadoop (YARN, HDFS) Knowledge of Spring Framework Experience with Apache Airflow Experience working with SQL databases and Elasticsearch Python programming skills Experience deploying services on Google Cloud Platform (GCP) Familiarity with Maven and Git What We Offer: Benefits package: private healthcare ( LuxMed ), sports package ( Multisport ) Opportunity to work on global-scale Big Data solutions Collaboration with international teams and industry experts Modern technology stack and challenging engineering environment Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams. Discover our latest job openings: https://en.antal.pl/candidates Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: Senior Backend Engineer role in banking focused on designing and developing high-availability, high-performance backend systems based on Java and microservices architecture. The position involves defining technical architecture, building scalable solutions processing large data volumes, and deploying services in cloud and Kubernetes environments. The engineer will collaborate within CI/CD-driven teams to ensure quality, security, and reliability of distributed systems. 🗂️ Requirements: 10+ years of software engineering experience, Strong backend development experience in Java, Experience with microservices architecture, Hands-on experience with RESTful APIs and HTTPS, Experience with message queues (MQ), Proven experience designing high-availability and high-performance systems, Strong knowledge of SQL and relational databases, Experience processing large data volumes in distributed systems, Practical experience with Go, Rust or similar system languages, Experience with NoSQL and analytical databases, Experience with Kubernetes and cloud platforms (preferably GCP), Knowledge of CI/CD practices, Understanding of cybersecurity principles, Banking domain knowledge (trade lifecycle, post-trade processing, FX) 📃 Skills: Java, Go, Rust, REST, HTTPS, MQ, SQL, PostgreSQL, ClickHouse, NoSQL, Kubernetes, GCP, CI/CD, Microservices 🏢 Description: Dla naszego klienta z obszaru bankowości poszukujemy doświadczonego specjalisty na stanowisko Senior Backend Engineera, który będzie odpowiedzialny za projektowanie i rozwój kluczowych systemów back-endowych w środowisku o wysokiej dostępności i wydajności. Zakres obowiązków Projektowanie i rozwój nowoczesnych systemów back-endowych w oparciu o Java oraz architekturę mikroserwisową Tworzenie i rozwijanie skalowalnych oraz wysokowydajnych rozwiązań dla systemów przetwarzających duże wolumeny danych Definiowanie architektury technicznej oraz podejmowanie kluczowych decyzji projektowych Współpraca z zespołami developerskimi, DevOps oraz security w ramach nowoczesnych metodyk wytwarzania oprogramowania (CI/CD) Utrzymanie wysokich standardów jakości, bezpieczeństwa i niezawodności systemów Wdrażanie oraz operowanie rozwiązaniami w środowisku chmurowym (preferencyjnie GCP) oraz Kubernetes Doświadczenie zawodowe / Wymagane umiejętności Ponad 10 lat doświadczenia w inżynierii oprogramowania, w tym praktyczne umiejętności programowania w nowoczesnym języku Java po stronie back-end, z wykorzystaniem HTTPS, RESTful API, mikroserwisów oraz MQ Bardzo dobra znajomość i solidne doświadczenie w projektowaniu architektury technicznej / rozwiązań dla dużych systemów back-end, z wymaganiami w zakresie: wysokiej dostępności wysokiej wydajności SQL / relacyjnych baz danych skalowalności łatwości utrzymania Doświadczenie w pracy z zespołem dostarczającym rozwiązania techniczne w oparciu o nowoczesne metodyki inżynierii oprogramowania, w tym znajomość CI/CD oraz cyberbezpieczeństwa Kluczowe umiejętności i kwalifikacje na to stanowisko Praktyczne doświadczenie programistyczne, szczególnie w obszarze back-end Doświadczenie w przetwarzaniu dużych wolumenów danych oraz w środowiskach rozproszonych Praktyczna znajomość języków Go, Rust lub podobnych nowoczesnych języków systemowych Doświadczenie z technologiami bazodanowymi, w tym NoSQL, bazami kolumnowymi, relacyjnymi oraz systemami analitycznymi (np. PostgreSQL, ClickHouse lub podobne) Doświadczenie w budowie i utrzymaniu usług na Kubernetes oraz platformach chmurowych, preferencyjnie GCP Umiejętności i doświadczenie w tworzeniu front-endu Wiedza domenowa w obszarze bankowości – cykl życia transakcji (trade lifecycle) oraz przetwarzanie potransakcyjne produktów inwestycyjnych, szczególnie FX Oferujemy Udział w projektach o dużej skali i znaczeniu biznesowym Pracę przy nowoczesnych technologiach i architekturach systemów rozproszonych Możliwość realnego wpływu na rozwiązania techniczne i architekturę Elastyczne formy współpracy (B2B / UoP) Pracę w modelu hybrydowym - 6 dni/ miesiąc z biura w Krakowie Co zyskasz dzięki aplikacji na ofertę Antal? Gdy Twoja aplikacja zostanie rozpatrzona pozytywnie (zostaniesz zaproszony/a do procesu), otrzymasz wsparcie Konsultanta/Konsultantki, który/a utrzyma z Tobą stały kontakt (mailowo lub telefonicznie), pomoże Ci przygotować się do rozmowy rekrutacyjnej z przyszłym pracodawcą oraz zatroszczy się o jakość procesu rekrutacyjnego, w którym aktualnie bierzesz udział. Kim jesteśmy? Jesteśmy liderem rekrutacji specjalistów i menedżerów oraz doradztwa w obszarze HR. Marka obecna jest w 35 krajach, w Polsce działa od 1996 roku. Przez ten czas zbudowaliśmy wiele karier kandydatów, dzięki elastycznemu i kompleksowemu podejściu do wszystkich rekrutacji. Antal tworzy ponad 130 profesjonalnych konsultantów ds. rekrutacji, którzy są oni nie tylko skutecznymi rekruterami, ale także wykwalifikowanymi doradcami, specjalizującymi się zarówno w zakresie wybranego sektora, jak i stanowiska. Sprawdź inne aktualne oferty pracy na: https://antal.pl/dla-kandydata Zaobserwuj nasz profil na LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: Senior Software Engineer role focused on developing and supporting a scalable service platform within capital markets operations. The position combines systems programming, DevOps practices, and enterprise architecture work in a hybrid cloud environment. The engineer will build platform components, automate deployments, and ensure high availability and security of distributed systems. 🗂️ Requirements: 3-5+ years of experience in DevOps, Software Engineering, or Platform Engineering, Strong knowledge of Linux/Unix systems, Experience in C programming or systems-level programming, Understanding of REST APIs and distributed systems, Experience with CI/CD pipelines and deployment automation, Ability to design scalable and secure cloud or hybrid architectures, Experience working in Agile enterprise environments, Ability to provide production support and incident management 📃 Skills: Linux, Unix, C, REST, CI/CD, DevOps, Cloud, APIs, DistributedSystems, Agile, Automation 🏢 Description: 📍 Cracow 🏢 Hybrid: 2 days per week in the office 💰 B2B: 190 - 225 PLN/h We are looking for a Senior Software Engineer to join the technology team of a global financial services organization. The role focuses on supporting the development of a service platform used within capital markets operations. It combines systems development, DevOps practices, and work on scalable, secure enterprise architecture. Responsibilities Design, develop, and maintain platform and infrastructure components Build and maintain CI/CD pipelines and deployment automation Work in Linux/Unix environments and develop low-level/system software (C / systems programming) Contribute to the architecture of distributed systems and APIs Ensure high availability, performance, and security of systems Provide production support (incident management, troubleshooting) Collaborate with global teams in an Agile environment Requirements Minimum 3-5 years of experience in DevOps / Software Engineering / Platform Engineering Strong knowledge of Linux/Unix systems Experience in C programming (or systems-level programming) Understanding of REST APIs and distributed system architectures Experience with CI/CD pipelines and deployment automation Ability to design scalable and secure cloud/hybrid systems Experience working in Agile and enterprise environments Strong communication and analytical skills Nice to have: Java JNI, Node.js, or systems integration experience Experience with monitoring tools (Prometheus, Grafana, ELK stack) Familiarity with financial services or regulated environments We offer Work in a global financial services organization Real impact on a platform used worldwide Modern DevOps / cloud / hybrid technology stack Collaboration with experienced engineering teams across Europe and Asia Benefits package: private medical care (LuxMed) and MultiSport card Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams. Discover our latest job openings: https://en.antal.pl/candidates Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland