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August 8, 2026

Data Engineer (Java+cloud)

Senior • Hybrid

150 - 180 PLN

Krakow, Poland

Opis

Dołączysz do zespołu rozwijającego strategiczne rozwiązanie wspierające obszar ryzyka rynkowego w globalnej instytucji finansowej. System dostarcza dane i scenariusze zespołom odpowiedzialnym za pomiar oraz analizę ryzyka i jest kluczowym elementem ekosystemu technologicznego organizacji.

Rozwiązanie opiera się na architekturze chmurowej i obejmuje komponenty przetwarzania wsadowego oraz strumieniowego. Wraz ze wzrostem skali biznesu i wolumenu danych zespół rozwija platformę, koncentrując się na wydajności, niezawodności i nowoczesnych praktykach inżynierskich.

O roli

Poszukujemy Senior Data Engineera z doświadczeniem w Javie, który będzie projektować i rozwijać usługi odpowiedzialne za pozyskiwanie, przetwarzanie oraz udostępnianie danych do analiz ryzyka. Rola łączy backend development, data engineering i pracę z rozwiązaniami chmurowymi.

Osoba na tym stanowisku będzie rozwijać nowe funkcjonalności, usprawniać istniejące komponenty oraz współtworzyć rozwiązania zapewniające wysoką skalowalność i niezawodność systemu. To okazja do pracy przy złożonych systemach o dużej skali, wpływu na decyzje techniczne oraz współpracy z międzynarodowymi zespołami biznesowymi i technologicznymi.

Zadania

  • Analiza wymagań biznesowych i projektowanie bezpiecznych, skalowalnych oraz wydajnych rozwiązań do przetwarzania danych.
  • Projektowanie i rozwój integracji z systemami wewnętrznymi, ze szczególnym uwzględnieniem wydajności i optymalizacji kosztów.
  • Współtworzenie architektury i rozwój rozwiązań związanych z pozyskiwaniem oraz przetwarzaniem danych rynkowych.
  • Udział w code review i dbanie o wysoką jakość dostarczanych rozwiązań.
  • Analiza istniejących potoków danych i mikroserwisów oraz identyfikowanie obszarów do usprawnień i modernizacji.
  • Ścisła współpraca z inżynierami, analitykami biznesowymi i interesariuszami w celu dostarczania rozwiązań odpowiadających potrzebom biznesowym.
  • Rozwijanie i utrzymywanie standardów monitoringu, logowania, obsługi błędów oraz niezawodności systemów.
  • Wspieranie kultury jakości poprzez rozwój i promowanie automatycznych testów jednostkowych oraz integracyjnych.

Wymagania

  • Bardzo dobra znajomość Javy.
  • Dobra znajomość frameworka Spring Boot i jego ekosystemu.
  • Doświadczenie w projektowaniu i implementacji wydajnych potoków przetwarzania danych; mile widziana znajomość Apache Beam.
  • Doświadczenie w projektowaniu i implementacji REST API.
  • Znajomość relacyjnych baz danych, preferencyjnie PostgreSQL, oraz szerokolumnowych baz NoSQL, preferencyjnie Bigtable.
  • Bardzo dobra znajomość zasad projektowania oprogramowania, w tym KISS, SOLID i DRY.
  • Podstawowa wiedza z zakresu DevOps oraz technologii CI/CD, w szczególności Jenkins i języka skryptowego Groovy.
  • Doświadczenie w pracy ze standardowymi frameworkami i wzorcami integracyjnymi, m.in. Saga i Lambda.
  • Bardzo dobre umiejętności komunikacyjne i prezentacyjne, metodyczne podejście do pracy oraz umiejętność efektywnej współpracy zespołowej.
  • Doskonałe zdolności analityczne i rozwiązywania problemów oraz chęć nauki nowych technologii.

Mile widziane

  • Google Cloud Platform (GCP).
  • Apache Beam i Dataflow.
  • Kafka.
  • Kubernetes i Docker.
  • Terraform.
  • OpenTelemetry, Prometheus i Grafana.
  • Doświadczenie w projektach związanych z danymi finansowymi lub ryzykiem rynkowym.

Oferujemy

  • Długofalową współpracę przy strategicznym projekcie.
  • Pracę w doświadczonym, międzynarodowym zespole.
  • Model hybrydowy: 8 dni w miesiącu z biura w Krakowie.

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Hybrid work model with 3 days per week on-site in Krakow. 🗂️ Requirements: Strong experience in Java, C#, JavaScript, Python or Go, Experience with CI/CD tools such as Maven, Gradle, Jenkins, TeamCity or GitLab, Experience with Docker, Kubernetes and Helm, Experience with Microsoft Azure or other major cloud platforms, Experience with Infrastructure-as-Code tools such as Terraform, ARM or CloudFormation, Proficiency in scripting languages such as PowerShell or Bash, Experience with GitHub or similar version control systems, Knowledge of Agile methodologies (Scrum or Kanban), Understanding of DevOps practices and automation, Availability to work 3 days per week from the Krakow office 📃 Skills: Java, C#, JavaScript, Python, Go, Maven, Gradle, Jenkins, TeamCity, GitLab, Docker, Kubernetes, Helm, Azure, Terraform, ARM, CloudFormation, PowerShell, Bash, GitHub, Scrum, Kanban, DevOps 🏢 Description: We are looking for a Senior Java Developer to join an agile delivery team working on a strategic cloud transformation initiative within a large-scale banking environment. In this role, you will help drive the migration of critical applications to public cloud infrastructure, collaborating with global IT teams to engineer reusable solutions and enhance developer experience. You will play a key part in building the foundation that enables seamless cloud adoption and supports innovative platform development across the organization. This role offers a hybrid model, with 3 days per week working from the client's office in Krakow. If you're ready to make an impact in a dynamic environment, we want to hear from you! Responsibilities Collaborate with IT teams to support and accelerate cloud migration projects Engineer common, reusable solutions for cloud adoption Write high-quality, reusable code and adhere to coding standards Develop clear, comprehensive documentation for solutions and processes Apply best practices in development and DevOps, leveraging modern technologies Participate in solution design, code sample creation, and architecture vision sharing Work in an agile, cross-location team environment Support improvements in internal client infrastructure migration to Cloud (Azure) Contribute to the co-development of platform solutions and processes for digital channels, cognitive services, and data Requirements Solid background in development using a language such as Java, C#, JavaScript, Python or Go CI/CD including tools such as Maven, Gradle, Jenkins, TeamCity, GitLab, etc. Containers and container orchestration using Docker, Kubernetes and Helm Microsoft Azure or other major cloud platforms Infrastructure-as-code, using tools such as Terraform, ARM or CloudFormation Scripting languages, including Windows PowerShell, Bash, etc. GitHub or similar, contributing to open-source projects Agile development practices (Scrum, Kanban) DevOps practices and the value of automation 3 days in the office per week is a must We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

Technology

Storware

Mid+/Senior Software Engineer

Senior

On-site

Warsaw, Poland

13,000 - 20,000 PLN/mo

🏢 Summary: Senior Software Engineer role focused on developing and supporting advanced data protection and backup solutions in on-premises and cloud environments. The position involves leading technical initiatives, designing and implementing new features, diagnosing complex issues in distributed systems, and ensuring high scalability and performance. Initially project-based, it evolves into a long-term product development and maintenance role within a dedicated team. 🗂️ Requirements: Minimum 4 years of commercial software development experience, Very good knowledge of Java or Golang, Experience with C or C++, Experience building and debugging large distributed systems, Experience working with microservices architecture, Experience with public cloud platforms, Experience with Linux and Windows environments, Experience with JIRA and GitHub, Experience with Python testing frameworks, Ability to debug using tools such as GDB or Python Debugger, English level B2 or higher, Knowledge of Agile/Scrum methodology 📃 Skills: Java, Golang, C, C++, Python, GDB, Linux, Windows, AWS, GCP, Azure, OCI, GitHub, JIRA, Microservices, SaaS, AI, ML, Scrum, Agile 🏢 Description: Dla naszego Partnera poszukujemy pełnych pasji i zaangażowania Senior Software Engineerów, którzy chcą wprowadzać innowacje i współtworzyć zaawansowane rozwiązania do zarządzania danymi. Jako część zespołu będziesz współtworzyć portfolio produktów, rozwijając funkcje, narzędzia i skrypty poprawiające doświadczenie klientów — od łatwości sprzedaży po płynne wdrożenie i utrzymanie. To stanowisko wykracza poza samo pisanie kodu. Szukamy inżynierów, którzy potrafią zagłębiać się w złożone systemy, skutecznie diagnozować i rozwiązywać problemy oraz dostarczać rozwiązania o wysokiej jakości, z naciskiem na skalowalność i wydajność. Będziesz współpracować blisko z Product Managerami, zespołem Customer Support, inżynierami systemowymi oraz bezpośrednio z klientami, aby zapewnić, że nasze rozwiązania spełniają rzeczywiste potrzeby użytkowników. Jak wygląda ta rola? 📃 Forma współpracy: Umowa o pracę Wynagrodzenie: 13 000 – 20 000 zł brutto Tryb pracy: stacjonarna w  biurze w Warszawie. Rola ta początkowo ma charakter projektowy i obejmuje około 8–10 miesięcy intensywnej współpracy z zespołem Storware Backup & Recovery, koncentrującej się na prowadzeniu inicjatyw technicznych oraz rozwijaniu i wspieraniu produktów. W tym etapie kluczowa jest ścisła współpraca między zespołami — w tym z product managementem, wsparciem technicznym, QA, aby skutecznie połączyć działania inżynieryjne z potrzebami klientów. Po zakończeniu fazy projektowej rola ewoluuje w bardziej samodzielną, z większą odpowiedzialnością za dalszy rozwój i utrzymanie rozwiązań. Docelowo praca będzie realizowana w ramach 5-osobowego zespołu, który będzie kontynuował rozwój produktu i jego wsparcie. Odpowiedzialność za rozwój funkcji: Odpowiedzialność za pełen cykl projektowania i implementacji funkcjonalności dla środowisk on-premises oraz chmurowych, zgodnie z wymaganiami produktu i opiniami klientów Udział w dyskusjach technicznych z inżynierami, architektami, Product Managerami i projektantami w celu doprecyzowania zakresu i projektu Dostarczanie funkcji: Terminowa realizacja powierzonych zadań oraz jasna komunikacja dotycząca zakresu i harmonogramu Prowadzenie prac nad poprawkami oraz hotfixami Proaktywne analizowanie ryzyk technicznych i podejmowanie decyzji opartych na danych w celu ich minimalizacji Tworzenie narzędzi wspierających zespoły wsparcia w diagnozowaniu i rozwiązywaniu problemów klientów Diagnozowanie i rozwiązywanie problemów: Przeprowadzanie szczegółowej analizy przyczyn źródłowych błędów i problemów wydajnościowych Wdrażanie i walidacja poprawek z naciskiem na jakość i szybkość Chętnie porozmawiamy, jeśli posiadasz większość z poniższych: Minimum 4 lata doświadczenia zawodowego w komercyjnych projektach . Idealnie, jeżeli są poparte referencjami i/lub portfolio Preferowane ukończenie studiów wyższych – udokumentowane , jako potwierdzenie kwalifikacji. Uwaga – proszę nie załączać dokumentów w zgłoszeniu. Bardzo dobra znajomość przynajmniej jednego z języków : Java lub Golang C lub C++ mile widziane Znajomość języka angielskiego na poziomie B2 (mówiony jak i pisany) lub wyżej (zespół zagraniczny) Doświadczenie z narzędziami: JIRA, GitHub, frameworki testowe w Pythonie Doświadczenie w tworzeniu produktów klasy enterprise związanych z ochroną danych mile widziane Znajomość mikroserwisów, chmury publicznej (AWS, GCP, Azure, OCI) oraz architektury SaaS (AI/ML będzie dodatkowym atutem) Doświadczenie w tworzeniu i debugowaniu dużych systemów rozproszonych w środowiskach Go/C/C++ na Linuxie i Windowsie Umiejętność analizy, debugowania i rozwiązywania złożonych problemów przy użyciu narzędzi takich jak GDB czy Python Debugger Nastawienie na rozwiązywanie problemów oraz pasja do tworzenia wysokiej jakości produktów Bardzo dobre umiejętności komunikacyjne i zdolność wpływania na innych Znajomość metodologii Agile/Scrum Umiejętność jasnego przedstawiania decyzji projektowych i upraszczania złożonych zagadnień Umiejętność podejmowania decyzji w oparciu o dane oraz wpływania na interesariuszy Doświadczenie w wykorzystywaniu narzędzi AI do usprawniania pracy i zwiększania produktywności Jak wygląda proces rekrutacji? Analiza nadesłanej aplikacji. Do dokumentów można załączyć referencje. Krótka rozmowa telefoniczna dotycząca doświadczenia zawodowego i oczekiwań (ok. 15 minut). Spotkanie w biurze w Warszawie z Team Leaderem projektu oraz osobą z działu HR. Rozmowa ma na celu weryfikację umiejętności technicznych. Metoda weryfikacji wiedzy będzie każdorazowo wskazana podczas rozmowy telefonicznej wraz z proponowanym terminem. Rozmowa techniczna i HRowa z przedstawicielami Partnera. Metoda weryfikacji wiedzy będzie każdorazowo wskazana podczas rozmowy telefonicznej wraz z proponowanym terminem. Przekazanie informacji zwrotnej po zakończeniu etapu rozmów. Ustalenie warunków współpracy i podpisanie umowy przedwstępnej lub docelowej. Rozpoczęcie współpracy i wdrożenie do zespołu. Dodatkowe informacje CO OFERUJEMY 💻współpraca z zespołem międzynarodowym, 💻sprzęt i narzędzia pracy spełniające wysokie standardy bezpieczeństwa danych (wdrożone ISO 27001), 💻 kontakt z nowoczesnymi technologiami 💻dużą autonomię w planowaniu i realizacji działań, 💻realny wpływ na kierunek rozwoju produktu oraz kształtowanie procesów, 💻przejrzystą i otwartą ścieżkę rozwoju w kierunku ról seniorskich, architektonicznych i menedżerskich, 💻jasno określone, realistyczne i mierzalne cele, 💻współpracę z doświadczonym zespołem technologicznym stanowiącym solidne zaplecze merytoryczne. INFORMACJE FORMALNE Administratorem danych osobowych jest Storware sp. z o.o. z siedzibą w Warszawie (ul. Bakalarska 15A U2, 02-212 Warszawa). Dane osobowe są przetwarzane w celu realizacji procesu rekrutacji, zgodnie z obowiązującymi przepisami RODO. Szczegółowe informacje dotyczące przetwarzania danych dostępne są w polityce prywatności.

Technology

Link Group

Senior C# Developer

Senior

Hybrid

Krakow, Poland

120 - 160 PLN

🏢 Summary: Senior C#/.NET Developer role focused on building and scaling high-performance backend systems for risk management, XVA, and asset-liability management within the financial domain. The position involves modernizing legacy components into a scalable, event-driven architecture and working across the full software development lifecycle in an agile, distributed team. Strong expertise in distributed systems, DevOps practices, and capital markets risk concepts is required. 🗂️ Requirements: 5+ years enterprise experience with C# and .NET (Web API, asynchronous programming, background services), Strong knowledge of distributed systems and Enterprise Integration Patterns, Experience with message brokers/service buses (e.g., RabbitMQ, MassTransit, Rebus), Solid experience with MS SQL Server or other relational databases, Experience with micro-ORMs (e.g., Dapper), Proficiency with Git-based repositories and CI/CD platforms (Jenkins, TeamCity, GitLab CI), Experience with configuration management tools (e.g., Ansible), Practical exposure to Generative AI / Agentic AI workflows in software engineering, Strong understanding of Capital Markets and derivatives (Listed and OTC), Knowledge of risk management concepts (Greeks, PnL Explain), Understanding of Valuation Adjustments (CVA, FVA) and liquidity/balance sheet metrics 📃 Skills: C#, .NET, ASP.NET, WebAPI, SignalR, RabbitMQ, MassTransit, Rebus, MSQL, Dapper, Git, Bitbucket, Jenkins, TeamCity, Ansible, CI/CD, SQL, XVA, ALM 🏢 Description: We are looking for a Senior C#/.NET Developer with Financial Domain Knowledge. In this role, you will be responsible for designing and scaling high-performance backend systems that support advanced risk management, valuation adjustments (XVA), and asset-liability management (ALM). You will work within a distributed, agile engineering team focused on modernizing legacy components into a highly scalable, event-driven architecture. Key Responsibilities Designing and developing high-performance C#/.NET applications and backend services Building scalable, event-driven and distributed systems in enterprise environments Developing asynchronous communication solutions using messaging frameworks (e.g. Rebus) Working with ASP.NET Web API, Windows Services, and SignalR Applying clean architecture, SOLID principles, and design patterns in daily development Collaborating in Agile teams across international environments Participating in full software development lifecycle, including architecture, implementation, testing, and deployment Working with CI/CD pipelines and DevOps tools such as Git, Bitbucket, Jenkins, TeamCity, and Ansible Optimizing and maintaining MS SQL databases and data-intensive applications Using ORM tools such as Dapper for efficient data access Contributing to code reviews, technical improvements, and engineering best practices Leveraging LLMs and AI-assisted development tools to improve software quality and engineering efficiency Delivering maintainable, scalable, and well-documented solutions under tight deadlines Requirements 5+ years of hands-on experience in enterprise-level software development using C# and the .NET ecosystem (including Web API, asynchronous programming, and background services). Strong command of System Architecture: practical knowledge of distributed systems, Enterprise Integration Patterns, and message brokers/service buses (e.g., RabbitMQ, MassTransit, Rebus or similar). Solid database experience with MS SQL Server (or other relational databases) and micro-ORMs (e.g., Dapper) optimized for high throughput. Proficiency with standard DevOps toolchains: Git-based repositories, modern CI/CD platforms (Jenkins/TeamCity/GitLab CI), and configuration management tools. Practical exposure to Generative AI / Agentic AI workflows applied to software engineering practices. Financial Domain Knowledge (Quantitative & Risk) Solid understanding of Capital Markets, including Listed and OTC derivatives. Familiarity with risk management concepts: Greeks (Delta, Gamma, Vega, Theta) and PnL Explain. Understanding of Valuation Adjustments (XVA) such as CVA, FVA. General awareness of Liquidity Risk, Balance Sheet Metrics, and transactional workflows (pre-trade/booking).