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July 7, 2026
Senior .Net Engineer
Senior • Remote
25,000 - 28,000 PLN
Gdansk, Poland
Salary: 1200 - 1320 PLN/MD (B2B)
Work model: 100% remote (possible 2-4 business trips per year to the office in Poland or Norway)
Why choose this offer?
Interesting and challenging projects, customer contact and close cooperation with various internal stakeholders
Work with dedicated and competent colleagues with high education and specialization level in an international environment
Space to innovate and learn more every day
Impact on Safer, Smarter and Greener future
Project
We are looking for an experienced Senior .NET Developer to join the team and help develop and extend a custom workflow framework and digital platforms supporting safety, certification, and compliance processes in the maritime and industrial sectors. In this role, you will design and build scalable, event-driven microservices, develop modern frontend components, and contribute to pilot deployments and real-world validation in high-risk operational environments. You will work closely with cross-functional teams to deliver reliable, high-quality solutions that address complex industry challenges.
Expected competences and knowledge:
Min. 5 years of experience with .NET 8.0 and C# development
Hands-on experience with frontend development using React.js and/or StencilJS (Web Components)
Solid understanding of event-driven architectures (Kafka, MassTransit)
Experience working with relational and NoSQL databases (PostgreSQL, SQL Server, MongoDB)
Proficiency in containerization and orchestration (Docker, Kubernetes, Helm)
Ability to work independently in a dynamic, incubator-style environment with evolving priorities
Strong diagnostic and problem-solving skills, including production issue resolution
Experience collaborating directly with customers and cross-functional teams
Familiarity with Agile methodologies, CI/CD pipelines, and technical documentation
Good communication skills in English (min. B2 level)
Key Responsibilities:
Extend and develop custom C# framework for workflow migration
Build and maintain frontend components
Writing technical documentations
Extending automated tests framework
Support pilot deployments with responsive issue resolution
Collaborate with stakeholders to validate solutions against business requirements
Balance evolving pilot priorities with ongoing development work
Technologies you'll work with
.NET/ C#
React.js
Kafka
Azure
PostgreSQL
Docker
Kubernetes
Client – why choose this particular client from the Jit portfolio?
Our Client has been in the business of providing safety and insurance for the maritime industry for over 160 years and is now the leading provider of security certification and audits. They offer a wide range of digital projects to increase safety and compliance with standards in industrial fields. Our Client's solutions are used in the maritime industry, from raw materials extraction, to anywhere else where there is a need for quality and compliance with norms and standards. We have been working with our Client since 2013, creating and maintaining applications that are utilized in high-risk areas like rigs, mines, and police units, striving to make the world a safer place. Our Client's commitment to safety, ecology, and quality, which has its roots in Scandinavian culture, is implemented on a global scale.
About Jit Team
The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts, to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams.
Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.
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Wrocław, DS, Poland
20,000 - 26,000 PLN/mo
🏢 Summary: Oferta dla Senior Java Developera w projekcie modernizacji systemów IT dla sektora energetycznego. Rola obejmuje rozwój aplikacji Java, mikroserwisów i REST API w środowisku Spring Boot oraz DevSecOps, z wynagrodzeniem 1000–1300 PLN/MD na B2B i sporadycznymi wizytami we Wrocławiu. 🗂️ Requirements: Minimum 8 lat doświadczenia w programowaniu Java, Znajomość wzorców projektowych i integracyjnych, Znajomość architektury mikroserwisowej, Znajomość Spring Boot, JPA i Hibernate, Doświadczenie w projektowaniu i implementacji REST API, Znajomość relacyjnych baz danych SQL, Znajomość praktyk DevSecOps, Doświadczenie z konteneryzacją, Znajomość zasad projektowania interfejsów użytkownika i użyteczności aplikacji webowych, Doświadczenie w branży energetycznej 📃 Skills: Java, SpringBoot, JPA, Hibernate, REST, SQL, Oracle, DevSecOps, Docker, Kubernetes, Nomad, Kafka, MinIO, Jenkins, GitLab 🏢 Description: Wynagrodzenie: 1000 - 1300 PLN/MD (B2B) Praca zdalna: sporadyczne wizyty w biurze we Wrocławiu (raz w miesiącu) Dlaczego warto wybrać tę ofertę? Dołączysz do projektu realizowanego dla klienta z sektora energetycznego, który rozwija i modernizuje kluczowe systemy informatyczne wspierające krajową infrastrukturę energetyczną Będziesz pracować z wykorzystaniem nowoczesnych technologii i architektury mikroserwisowej w środowisku opartym o Java, Spring Boot oraz rozwiązania DevSecOps To okazja do wykorzystania i dalszego rozwijania kompetencji w obszarze integracji systemów, konteneryzacji oraz projektowania rozwiązań klasy enterprise Projekt Jako Senior Java Developer dołączysz do projektu realizowanego dla organizacji wspierającej rozwój i utrzymanie systemów IT wykorzystywanych w sektorze energetycznym. Projekt koncentruje się na budowie oraz rozwoju nowoczesnych rozwiązań informatycznych z wykorzystaniem Java, Spring Boot i architektury mikroserwisowej. Zakres obowiązków Rozwój i utrzymanie aplikacji w technologii Java Projektowanie i implementacja architektury mikroserwisowej Tworzenie oraz rozwój interfejsów REST API Oczekiwane kompetencje i wiedza Minimum 8 lat doświadczenia w programowaniu w języku Java Praktyczna znajomość wzorców projektowych , wzorców integracyjnych oraz architektury mikroserwisowej Znajomość frameworków Spring Boot (Core, Data, Security), JPA oraz Hibernate Doświadczenie w projektowaniu i implementacji REST API Znajomość relacyjnych baz danych SQL, preferencyjnie Oracle Znajomość praktyk DevSecOps Doświadczenie w pracy z technologiami konteneryzacji, takimi jak Docker, Kubernetes (K8s) lub Nomad Znajomość dobrych praktyk projektowania interfejsów użytkownika oraz zagadnień związanych z użytecznością aplikacji webowych Doświadczenie w branży energetycznej Mile widziane Znajomość narzędzi i technologii: Apache Kafka, MinIO, Jenkins, GitLab Technologie z jakimi będziesz pracować Java Spring Boot JPA Hibernate REST API SQL (Oracle) Docker Kubernetes (K8s) Nomad Apache Kafka MinIO Jenkins GitLab Klient – dlaczego warto wybrać akurat tego klienta z portfolio JIT? Nasz klient specjalizuje się w rozwijaniu innowacyjnych rozwiązań technologicznych w sektorze energetycznym i działa na terenie całej Polski od ponad 12 la t. Klient wspiera krajowego operatora systemu przesyłowego poprzez budowę i modernizację systemów informatycznych oraz prowadzenie prac badawczo-rozwojowych. Firma wdraża także zaawansowaną automatyzację procesów biznesowych, co pozwala na zwiększenie efektywności działania. Głównym założeniem naszego klienta jest zapewnienie efektywnej i niezawodnej pracy systemu elektroenergetycznego, wspierając jednocześnie rozwój odnawialnych źródeł energii. O Jit Team The Human factor of IT - to nie tylko slogan, to filozofia. Fundamentem Jit Team są ludzie, dlatego to właśnie Was traktujemy priorytetowo. Zatrudniamy ponad 770 doświadczonych ekspertów , którym oferujemy rozwojowe projekty, szeroki zakres benefitów oraz autorski program rozwoju zawodowego. Wspólnie z klientami z całego świata tworzymy innowacyjne rozwiązania IT, dostarczane przez wysoko specjalizowane i efektywne zespoły. Za naszą maksymą stoją, także działania charytatywne i edukacyjne. Wspieramy szkoły, uczelnie i instytucje edukacyjne – prowadząc zajęcia, projekty edukacyjne, sponsorując wydarzenia czy przekazując sprzęt do nauki. Oferujemy staże umożliwiające rozpoczęcie kariery w IT. Wspieramy ratowników wodnych oraz szpitale, dostarczając potrzebne wyposażenie. Wspieramy też liczne organizacje charytatywne wspierające ubogich, dzieci i osoby starsze. Jesteśmy Polską firmą i dzielimy się tym, co osiągnęliśmy przez ponad 15 lat działalności. Wspierając rodzime inicjatywy, dbamy o obieg dobrej energii.