Rust Tech Lead

🏢 Summary: Long-term remote B2B opportunity for an experienced Rust Tech Lead to shape the technical direction and build a ~10-person engineering team within a structured Agile Release Train environment. The role combines hands-on Rust development with architectural ownership, API and system design, and leadership in delivering high-quality software through TDD/BDD and CI practices. You will collaborate closely with architects and cross-functional teams to ensure engineering excellence and alignment with ART standards. 🗂️ Requirements: Minimum 8 years of professional experience, Proven experience in a technical leadership role, Strong commercial Rust experience (approx. 2 years), Strong experience with React and web development, Expertise in API design and system integration, Proficiency in Kubernetes, Solid understanding of design patterns, Advanced algorithm programming skills, Experience with Domain-Driven Design, Knowledge of event sourcing architectures, Experience with AI-assisted engineering tools, Experience in automated UI testing, Experience in backend-frontend integration testing, English proficiency at C1+ level 📃 Skills: Rust, C++, React, Kubernetes, API, DDD, TDD, BDD, CI, EventSourcing, EventStore, WebAssembly, AI, UI, Testing 🏢 Description: We are currently looking for an experienced Rust Tech Lead to join one of our Partners and play a key role in a new long‑term project. In this role, you will help shape both the technical direction and the engineering team structure from the ground up. If you are passionate about modern technologies, architectural decision‑making, and mentoring cross‑functional teams in an Agile environment. As a Tech Lead, you will become a senior member of the core leadership layer — working closely with the Scrum Master and Product Owner — and you will guide a team of software engineers and testers toward delivering high‑quality, well‑tested software in short, iterative cycles. You will collaborate directly with the Client’s Architects to refine system architecture, uphold engineering standards, and foster an environment built on technical excellence and continuous improvement. This is a hands‑on role that combines responsibility for delivery with building an engineering team of approximately 10 people. The project operates in an extended workbench model and is part of a larger Agile Release Train (ART), providing a mature, structured, and collaborative working environment. Tasks: Establish, maintain, and promote coding guidelines, architectural principles, and engineering best practices across the Rust team Collaborate closely with Client Architects to define and refine system architecture in alignment with the Agile Release Train (ART) Ensure all code adheres to technical standards and architectural guidelines Participate in Program Increment (PI) Planning every 8–12 weeks, including capacity planning, dependency identification, and objectives setting Lead execution during 2‑week iterations (planning, daily stand‑ups, backlog refinement, reviews) Drive Built‑In Quality through TDD/BDD practices, peer code reviews, and automated regression testing Support continuous integration with other ART teams and contribute to bi‑weekly system demos Drive continuous improvement across engineering processes Support team build‑up and contribute to shaping a ~10‑person engineering team based in Poland Expectations & Requirements: Technical Requirements: Proven experience in a technical leadership role Strong commercial Rust experience (approx. 2 years); previous C++ experience is a significant advantage Strong experience with React and web development Expertise in API design and system integration Proficiency in Kubernetes Solid understanding of design patterns Advanced algorithm programming skills Experience with Domain‑Driven Design (DDD) Knowledge of event sourcing architectures Hands‑on experience with AI‑assisted engineering tools (Claude Code, Cursor, Codex, etc.) Experience in automated UI testing and integration testing between backend and frontend Nice to Have: Experience with Event Store Experience building WebAssembly applications SAFe certifications (e.g., SAFe ASE, SAFe Architect, SAFe Practitioner) Soft Skills: Minimum 8 years of professional experience English proficiency at C1+ level Collaborative and alignment‑seeking mindset, curiosity about the full product lifecycle Excellent communication skills with the ability to advocate for technical standards What We Offer: Long‑term cooperation on a B2B contract with Shimi Fully remote work Project start: May / the 1st–2nd week of June Occasional travel to Switzerland (approx. once every 6 months), fully covered by the client Approx. 150 PLN/h net + VAT Opportunity to build and shape a new engineering team Work in a modern Agile Release Train environment with high engineering standards Necessary work equipment provided Benefits: Co‑financing for Multisport and private medical care

🏢 Summary: Hybrid Test Automation Engineer role focused on designing and scaling automated testing frameworks for complex travel technology solutions. The position involves defining QA standards, improving automation frameworks, and integrating testing into CI/CD pipelines within an Agile and DevOps environment. The role requires close collaboration with cross-functional teams in a 50/50 hybrid model in Warsaw. 🗂️ Requirements: Strong proficiency in Java programming, Knowledge of software architecture principles, Understanding of design patterns, Expert experience with Selenium, Expert experience with Selenium Grid, Experience in designing test automation frameworks, Hands-on experience with CI/CD pipelines, Experience with Jenkins, Strong knowledge of Agile methodologies, Understanding of DevOps practices, Experience with QA tools and test environments, Cloud experience (Azure or other major platforms), Proficiency in English 📃 Skills: Java, Selenium, SeleniumGrid, Jenkins, Azure, CI/CD, Agile, DevOps, QA, Automation, Git 🏢 Description: Billennium is a global technology company with over 20 years of experience, committed to innovation and empowering businesses. As an employer, we offer a supportive, growth-focused environment where collaboration and creativity thrive. Join us to shape the future of technology together! We are looking for an experienced Test Automation Engineer who will join a project for our client in the travel technology industry. To ensure strong collaboration with on-site functional experts and customer care, the team operates in a 50/50 hybrid model (Warsaw). What you will do: Participate in QA forums and contribute to methodology, framework, and tooling evolution. Define and execute test standards for complex, cross-functional solutions. Apply QA methodologies: test planning, design, execution, and reporting. Manage defects, perform root cause analysis, and drive corrective actions. Design and improve scalable test automation frameworks (Selenium, Selenium Grid). Perform code reviews and ensure automation best practices. Develop and maintain CI/CD pipelines (e.g., Jenkins). Maintain high-quality standards and define relevant KPIs. Promote and optimize testing tools and environments. Support environmental impact measurement and reduction in QA activities. What we are looking for: Strong proficiency in Java programming , including solid knowledge of software architecture principles and design patterns. Deep understanding of Agile methodologies and DevOps practices . Expert-level experience with Selenium and Selenium Grid , including advanced test automation capabilities. Expertise in QA tools , test environments, and modern test automation frameworks/solutions . Hands-on experience with CI/CD pipelines and tools (e.g., Jenkins) to streamline testing and deployment processes. Strong cloud experience , ideally with Microsoft Azure or other major cloud platforms. Proficiency in English . Perks and benefits: Comprehensive benefits - enjoy Udemy for Business, private medical care, Multisport card, veterinary package, language lessons, and shopping vouchers. Flexibility - adaptable working hours and remote/hybrid work options to suit your lifestyle & location. Career growth - access opportunities for professional development and learning, including perks related to our official partnerships with global IT giants: Microsoft, AWS, Snowflake, Salesforce & more. Global collaboration - work with a diverse, international team. Innovative environment - be part of a forward-thinking and growth-oriented workplace. Engaging community – Work with passionate professionals and participate in team-building events, hackathons, and CSR initiatives to make an impact beyond work. Team-building events including our company tradition (annual company event in Mazury ). A pleasant surprise to start your journey with us in the form of a welcome pack.

🏢 Summary: The offer is for a Senior .NET Developer responsible for designing and developing applications and databases in public sector projects. The role includes building high-quality, scalable solutions, performing code reviews, creating tests, and collaborating in a Scrum team. The position also involves working with modern cloud, containerization, and CI/CD technologies. 🗂️ Requirements: Minimum 5 years of experience in .NET development within the last 10 years, Very good knowledge of C#, Experience with at least one: ASP.NET MVC, WPF, SignalR, WCF, Web API, Knowledge of OOP principles including SOLID and DRY, Experience with TDD or agile development practices, Experience with Visual Studio, Experience with Entity Framework or other ORM, Experience with SQL or NoSQL databases, Experience building SOAP, REST or SignalR services, Practical knowledge of IIS server, Experience with at least one frontend framework: Vue.js, Angular or React, Ability to program in HTML, JavaScript and CSS, Experience with Docker, Kubernetes or similar, Knowledge of Microsoft Azure, Experience with CI/CD tools, static code analysis and unit testing tools, Experience with Git version control system, Polish language proficiency at minimum C1 level 📃 Skills: .NET, C#, ASP.NET, MVC, WPF, SignalR, WCF, WebAPI, SOLID, DRY, TDD, VisualStudio, EntityFramework, SQL, NoSQL, SOAP, REST, IIS, Vue, Angular, React, HTML, JavaScript, CSS, Docker, Kubernetes, Azure, CI/CD, xUnit, Git, SCRUM 🏢 Description: Billennium to globalna firma technologiczna z ponad 20-letnim doświadczeniem, zaangażowana w innowacje i wspieranie przedsiębiorstw. Jako pracodawca oferujemy wspierające, nastawione na rozwój środowisko, w którym współpraca i kreatywność to naczelne wartości. Dołącz do nas, aby wspólnie kształtować przyszłość technologii! Kogo szukamy? Do naszego zespołu poszukujemy doświadczonej osoby na stanowisko: Senior .Net Developer, która wesprze nas w realizacji projektów IT — w obszarze public. Zakres zadań: Projektowanie i tworzenie aplikacji/baz danych Szacowanie czasochłonności zadań oraz wskazania ryzyka lub problemów przy ich realizacji Planowanie, tworzenie i wykonywanie testów aplikacji i rozwiązań Dbanie o jakość kodu źródłowego przeprowadzanie Code Review Wsparcie merytoryczne i techniczne innych członków zespołu Ścisła współpraca z zespołami analityków biznesowych, architektów, UX designerów oraz testerów Tworzenie dokumentacji technicznej Realizowanie zadań zgodnie z obowiązującymi zasadami i przyjętą metodyką pracy (SCRUM) Niezbędne umiejętności i kwalifikacje: Minimum 5 lat doświadczenia w programowaniu w technologiach .NET, zdobyte w ciągu ostatnich 10 lat. Bardzo dobra znajomość języka C#. Doświadczenie w pracy z co najmniej jedną technologią: ASP.NET MVC, WPF, SignalR, WCF lub Web API. Znajomość zasad projektowania obiektowego, w tym SOLID, DRY, oraz doświadczenie w stosowaniu TDD lub innych technik zwinnego wytwarzania oprogramowania. Doświadczenie w pracy z środowiskiem Visual Studio. Znajomość Entity Framework lub innej biblioteki ORM. Doświadczenie w tworzeniu aplikacji wykorzystujących relacyjne bazy danych SQL lub bazy NoSQL. Doświadczenie w budowaniu usług opartych o SOAP, REST lub SignalR. Praktyczna znajomość serwera klasy enterprise IIS. Praktyczna znajomość co najmniej jednego frameworka front-end: Vue.js, Angular lub React. Umiejętność programowania w HTML, JavaScript i CSS. Doświadczenie w pracy z konteneryzacją, taką jak Docker, Kubernetes lub technologie równoważne. Znajomość środowiska Microsoft Azure. Umiejętność korzystania z narzędzi wspierających proces wytwarzania oprogramowania, takich jak narzędzia CI/CD, statyczna analiza kodu, narzędzia do weryfikacji pokrycia testami jednostkowymi (np. xUnit) oraz system kontroli wersji GIT. Znajomość języka polskiego na poziomie umożliwiającym swobodną komunikację werbalną i pisemną. (min. C1) Nasza oferta: Pakiet benefitów pozapłacowych — Udemy for Business, prywatna opieka medyczna, karta Multisport, pakiet weterynaryjny, lekcje językowe, bony zakupowe Elastyczność — elastyczne godziny pracy i opcje pracy zdalnej/hybrydowej dostosowane do Twojego stylu życia i lokalizacji Rozwój kariery — dostęp do szkoleń i certyfikacji, współpraca z globalnymi partnerami IT (Microsoft, AWS, Snowflake, Salesforce) Angażująca społeczność — udział w wydarzeniach team buildingowych, hackathonach i inicjatywach CSR Firmowe tradycje — coroczne wydarzenie integracyjne na Mazurach Czekamy właśnie na Ciebie!

🏢 Summary: Oferta dotyczy roli Java Tech Lead odpowiedzialnej za projektowanie architektury i rozwój systemów w sektorze publicznym oraz techniczne prowadzenie zespołu programistów. Stanowisko łączy hands-on development z nadzorem nad jakością, decyzjami architektonicznymi i mentoringiem. Kluczowe jest doświadczenie w ekosystemie Java/Spring oraz pracy z nowoczesną infrastrukturą i CI/CD. 🗂️ Requirements: Minimum 7 lat doświadczenia w programowaniu w Java, Minimum 2 lata doświadczenia w roli Tech Leada lub Lidera Technicznego Java, Doświadczenie w projektowaniu architektury systemów, Bardzo dobra znajomość Java i Spring (Spring Boot, Spring MVC, Spring Security), Doświadczenie w projektowaniu i implementacji REST oraz SOAP, Doświadczenie z relacyjnymi bazami danych i SQL, Znajomość ORM (Hibernate, JPA lub równoważne), Doświadczenie z serwerami aplikacyjnymi (JBoss, WebLogic, GlassFish lub podobne), Doświadczenie z Docker lub Kubernetes, Doświadczenie z narzędziami CI/CD, Umiejętność prowadzenia Code Review i mentoringu, Znajomość narzędzi do analizy jakości kodu (np. SonarQube), Doświadczenie w monitorowaniu pokrycia testami 📃 Skills: Java, Spring, SpringBoot, SpringMVC, SpringSecurity, REST, SOAP, SQL, Hibernate, JPA, JBoss, WebLogic, GlassFish, Docker, Kubernetes, CI/CD, SonarQube 🏢 Description: Billennium to globalna firma technologiczna z ponad 20-letnim doświadczeniem, zaangażowana w innowacje i wspieranie przedsiębiorstw. Jako pracodawca oferujemy wspierające, nastawione na rozwój środowisko, w którym współpraca i kreatywność to naczelne wartości. Dołącz do nas, aby wspólnie kształtować przyszłość technologii! Do naszego zespołu poszukujemy osoby na stanowisko Java Tech Lead / Lider Techniczny Java , która wesprze nas w realizacji projektów IT w sektorze publicznym. Zadania: Projektowanie architektury oraz rozwiązań technicznych dla systemów opartych o technologię Java. Koordynowanie prac zespołu programistycznego (3 osoby) oraz wsparcie deweloperów w rozwiązywaniu złożonych problemów technicznych. Podejmowanie decyzji technologicznych oraz rekomendowanie najlepszych rozwiązań architektonicznych. Nadzór nad jakością wytwarzanego oprogramowania, w tym prowadzenie Code Review. Definiowanie i promowanie dobrych praktyk programistycznych, standardów kodowania oraz wzorców projektowych. Współpraca z architektami, analitykami, testerami i zespołami DevOps. Projektowanie i rozwój usług REST oraz SOAP oraz integracji między systemami. Nadzór nad wydajnością, bezpieczeństwem i skalowalnością rozwiązań. Wsparcie zespołu w diagnozowaniu i rozwiązywaniu problemów produkcyjnych. Udział w planowaniu prac zespołu oraz estymacji zadań. Mentoring zespołu oraz rozwój kompetencji członków zespołu. Udział w spotkaniach z klientem oraz prezentowanie rozwiązań technicznych. Identyfikowanie ryzyk technicznych oraz inicjowanie działań ograniczających ich wpływ. Współpraca przy doskonaleniu procesów wytwórczych oraz praktyk CI/CD. Oczekiwania: Minimum 7 lat doświadczenia w projektowaniu i tworzeniu oprogramowania w języku Java (8+). Minimum 2 lata doświadczenia w roli Tech Leada / Lidera Technicznego / Głównego Programisty Java. Umiejętność prowadzenia Code Review oraz mentoringu zespołu. Doświadczenie w projektowaniu architektury oraz podejmowaniu decyzji technologicznych. Bardzo dobra znajomość Java oraz ekosystemu Spring (Spring Boot, Spring MVC, Spring Security). Doświadczenie w projektowaniu i implementacji REST API oraz SOAP. Doświadczenie w pracy z relacyjnymi bazami danych (SQL). Znajomość ORM (Hibernate, JPA lub równoważne). Doświadczenie z serwerami aplikacyjnymi (JBoss, WebLogic, GlassFish lub podobne). Doświadczenie w pracy z Docker, Kubernetes lub podobnymi rozwiązaniami. Doświadczenie z narzędziami CI/CD. Znajomość narzędzi do analizy jakości kodu (np. SonarQube). Doświadczenie w monitorowaniu pokrycia testami i promowaniu dobrych praktyk testowania. Nasza oferta: Pakiet benefitów pozapłacowych — korzystaj z Udemy for Business, prywatnej opieki medycznej, karty Multisport, pakietu weterynaryjnego, lekcji językowych i bonów zakupowych. Elastyczność — elastyczne godziny pracy i opcje pracy zdalnej/hybrydowej dostosowane do Twojego stylu życia i lokalizcji. Rozwój kariery — dostęp do możliwości rozwoju zawodowego i nauki, w tym korzyści związanych z naszymi oficjalnymi partnerstwami z globalnymi gigantami IT, m.in . Microsoft, AWS, Snowflake, Salesforce. Angażująca społeczność — praca z pełnymi pasji profesjonalistami i udział w wydarzeniach team buildingowych, hackathonach i inicjatywach CSR. Wydarzenia team buildingowe, w tym nasza tradycja firmowa (coroczne wydarzenie firmowe na Mazurach). Czekamy właśnie na Ciebie!

🏢 Summary: Offer for an experienced .NET Developer to design and develop applications and databases within public sector IT projects, working in a SCRUM environment with strong focus on code quality and collaboration. The role involves backend development, integration services, testing, and technical documentation. The position also requires security clearance and readiness for extended verification procedures. 🗂️ Requirements: Minimum 3 years of experience in .NET development, Very good knowledge of C#, Experience with at least one backend framework: ASP.NET MVC, WPF, SignalR, WCF, ASP.NET Core, or Web API, Knowledge of object-oriented design principles and best practices (SOLID, DRY, Clean Code), Experience with TDD, Proficiency with Visual Studio, Experience with Entity Framework or other ORM, Experience with relational SQL or NoSQL databases, Experience in building REST, SOAP, or SignalR services, Basic knowledge of React, Angular, or Vue, Experience with CI/CD tools, static code analysis, test coverage tools, xUnit or NUnit, and Git, Security clearance for access to classified information ("confidential"), Readiness to undergo extended clearance procedure for higher-level classified information 📃 Skills: .NET, C#, ASP.NET, MVC, WPF, SignalR, WCF, ASP.NET Core, Web API, SOLID, DRY, Clean Code, TDD, Visual Studio, Entity Framework, ORM, SQL, SQL Server, PostgreSQL, NoSQL, REST, SOAP, React, Angular, Vue, CI/CD, xUnit, NUnit, Git, SCRUM 🏢 Description: Billennium to globalna firma technologiczna z ponad 20-letnim doświadczeniem, zaangażowana w innowacje i wspieranie przedsiębiorstw. Jako pracodawca oferujemy wspierające, nastawione na rozwój środowisko, w którym współpraca i kreatywność to naczelne wartości. Dołącz do nas, aby wspólnie kształtować przyszłość technologii! Kogo szukamy? Do naszego zespołu poszukujemy doświadczonej osoby na stanowisko .NET Developera, która wesprze nas w realizacji projektów IT — w obszarze public. Zakres zadań: Projektowanie oraz rozwijanie aplikacji i baz danych w ramach realizowanych projektów. Przygotowywanie estymacji prac, wskazywanie potencjalnych trudności i możliwych zagrożeń realizacyjnych. Opracowywanie planów testów oraz ich wykonywanie w celu zapewnienia poprawności działania tworzonych rozwiązań. Dbanie o utrzymanie wysokiej jakości kodu, w tym udział w przeglądach i weryfikacji pracy innych programistów. Udzielanie wsparcia technicznego oraz dzielenie się wiedzą z członkami zespołu. Bieżąca współpraca z analitykami biznesowymi, architektami, projektantami UX i testerami przy tworzeniu nowych funkcjonalności. Przygotowywanie dokumentacji technicznej dla tworzonych komponentów i usług. Realizacja zadań zgodnie z obowiązującymi standardami technicznymi i metodyką pracy SCRUM. Niezbędne umiejętności i kwalifikacje: Minimum 3 lat doświadczenia w programowaniu w środowisku .NET Bardzo dobra znajomość języka C#. Praktyczne doświadczenie w pracy z co najmniej jedną technologią lub frameworkiem backendowym: ASP.NET MVC, WPF, SignalR, WCF, ASP.NET Core, Web API. Bardzo dobra znajomość zasad projektowania obiektowego oraz stosowanie dobrych praktyk (SOLID, DRY, Clean Code), oraz doświadczenie w stosowaniu TDD. Swoboda w pracy z środowiskiem Visual Studio Doświadczenie w korzystaniu z Entity Framework lub innego ORM. Praktyka w tworzeniu aplikacji korzystających z relacyjnych baz SQL (np. SQL Server, PostgreSQL) lub baz NoSQL. Doświadczenie w tworzeniu usług opartych o REST, SOAP lub SignalR. Podstawowa znajomość jednego z frameworków front-end: React, Angular, Vue. Doświadczenie w korzystaniu z narzędzi wspierających proces wytwarzania oprogramowania (CI/CD, statyczna analiza kodu, pokrycie testów, xUnit/NUnit oraz Git). Poświadczenie bezpieczeństwa dostępu do informacji niejawnych o klauzuli poufne; Gotowość na przeprowadzenie rozszerzonego postępowania sprawdzającego w zakresie dostępu do informacji niejawnych o klauzuli tajne i ściśle tajne; Nasza oferta: Pakiet benefitów pozapłacowych — Udemy for Business, prywatna opieka medyczna, karta Multisport, pakiet weterynaryjny, lekcje językowe, bony zakupowe Elastyczność — elastyczne godziny pracy i opcje pracy zdalnej/hybrydowej dostosowane do Twojego stylu życia i lokalizacji Rozwój kariery — dostęp do szkoleń i certyfikacji, współpraca z globalnymi partnerami IT (Microsoft, AWS, Snowflake, Salesforce) Angażująca społeczność — udział w wydarzeniach team buildingowych, hackathonach i inicjatywach CSR Firmowe tradycje — coroczne wydarzenie integracyjne na Mazurach Czekamy właśnie na Ciebie!

🏢 Summary: Full-stack development role focused on building a modern underwriting solution using Angular and .NET, including scalable UI components, REST API integrations, and secure authentication. The position involves working with SQL Server, cloud-native deployment tools, and automated testing in an agile environment. 🗂️ Requirements: Strong experience with Angular and .NET, Experience building and consuming REST APIs, Solid knowledge of SQL Server and Entity Framework, Understanding of authentication mechanisms (Azure AD, MSAL), Hands-on experience with Docker and Kubernetes, Experience with CI/CD pipelines, Familiarity with unit and integration testing frameworks (Vitest, xUnit), Ability to develop scalable and maintainable solutions 📃 Skills: Angular, .NET, REST, SQL, SQLServer, EntityFramework, AzureAD, MSAL, Docker, Kubernetes, CICD, Vitest, xUnit, AzureDevOps 🏢 Description: Billennium is a global technology company with over 20 years of experience, committed to innovation and empowering businesses. As an employer, we offer a supportive, growth-focused environment where collaboration and creativity thrive. Join us to shape the future of technology together! We are recruiting for our Client, who is developing a modern solution that streamlines the underwriting process through a contract repository, clause libraries, and AI‑supported wording creation tools. What you will do: Build full‑stack features using Angular (frontend) and .NET (backend) Create scalable UI components and integrate REST APIs Implement secure authentication flows with Azure AD / MSAL Work with SQL Server using Entity Framework Deploy services using Docker, Kubernetes, and CI/CD pipelines Write and maintain unit and integration tests (Vitest, xUnit) Participate in code reviews, agile ceremonies, and collaborate with cross‑functional teams Document work and track progress in Azure DevOps What we're looking for: Strong experience in software development with Angular, .NET, and REST APIs Solid understanding of SQL Server, Entity Framework, and authentication mechanisms Hands‑on experience with Docker, Kubernetes, and CI/CD Familiarity with testing frameworks (Vitest, xUnit) and agile practices Ability to work in a collaborative environment and deliver scalable, maintainable solutions Perks and benefits: Comprehensive benefits - enjoy Udemy for Business, private medical care, Multisport card, veterinary package, language lessons, and shopping vouchers. Flexibility - adaptable working hours and remote/hybrid work options to suit your lifestyle & location. Career growth - access opportunities for professional development and learning, including perks related to our official partnerships with global IT giants: Microsoft, AWS, Snowflake, Salesforce & more. Global collaboration - work with a diverse, international team. Innovative environment - be part of a forward-thinking and growth-oriented workplace. Engaging community – Work with passionate professionals and participate in team-building events, hackathons, and CSR initiatives to make an impact beyond work. Team-building events including our company tradition (annual company event in Mazury). A pleasant surprise to start your journey with us in the form of a welcome pack.

🏢 Summary: Senior Java Developer role focused on building and maintaining full‑stack healthcare applications that support oncology diagnosis and treatment. The position involves designing scalable, secure microservices-based systems, contributing to architecture, and working with cloud-native and DevOps environments. The goal is to deliver high-quality digital solutions that improve patient outcomes through advanced data and analytics capabilities. 🗂️ Requirements: 5+ years of software development experience, Degree in Engineering, B2+ English proficiency, Expert knowledge of Java, Experience with Spring Boot, Experience with Hibernate/JPA, Experience designing RESTful APIs, Understanding of microservices architecture, Knowledge of event-driven and distributed systems, Strong SQL database knowledge, Experience with AWS services (EKS, S3, DynamoDB, ElastiCache, Lambda), Experience with Docker and Kubernetes, Experience with AI coding assistants and LLMs, Experience building reusable architectural components 📃 Skills: Java, Spring, SpringBoot, Hibernate, JPA, REST, Microservices, SQL, AWS, EKS, S3, DynamoDB, ElastiCache, Lambda, Docker, Kubernetes, LLM, AI, DevOps 🏢 Description: Billennium is a global technology company with over 20 years of experience, committed to innovation and empowering businesses. As an employer, we offer a supportive, growth-focused environment where collaboration and creativity thrive. Join us to shape the future of technology together! We are looking for an experienced Senior Java Developer to join a team building advanced digital solutions that support the diagnosis and treatment of oncology patients. Our mission is to improve patient outcomes by combining modern technologies with the healthcare domain. You will work on a suite of products designed to streamline medical case coordination, enable efficient data ingestion and management, provide a holistic view of the patient journey, and deliver analytics and reporting capabilities that help make treatment more effective. What you will do Design, develop, and maintain full‑stack features across a complex ecosystem of healthcare‑focused applications. Collaborate with cross‑functional teams to deliver scalable, secure, and high‑quality solutions. Contribute to architectural decisions and technical strategy. Ensure code quality through testing, reviews, and adherence to engineering best practices. Work with cloud‑native infrastructure and modern DevOps tooling. Support continuous improvement of development processes and system reliability. What we are looking for 5+ years of hands-on software development experience with a proven track record of delivering scalable systems Degree in an Engineering discipline, B2+ English, and a collaborative spirit for mentoring and team-building Expert knowledge of Java (latest versions), Spring Boot, Hibernate/JPA, and RESTful API design AI-First Mindset: proficiency in using AI coding assistants and LLMs for software development Deep understanding of microservices, event-driven patterns (Async), and distributed systems Excellent knowledge of SQL databases Strong experience with AWS (EKS, S3, DynamoDB, ElastiCache, Lambda) and modern Docker/K8s workflows Experience developing reusable architectural components for multiple projects Perks and benefits (our offer) Comprehensive benefits - enjoy Udemy for Business, private medical care, Multisport card, veterinary package, language lessons, and shopping vouchers. Flexibility - adaptable working hours and remote/hybrid work options to suit your lifestyle & location. Career growth - access opportunities for professional development and learning, including perks related to our official partnerships with global IT giants: Microsoft, AWS, Snowflake, Salesforce & more. Global collaboration - work with a diverse, international team. Innovative environment - be part of a forward-thinking and growth-oriented workplace. Engaging community – Work with passionate professionals and participate in team-building events, hackathons, and CSR initiatives to make an impact beyond work. Team-building events including our company tradition (annual company event in Mazury). A pleasant surprise to start your journey with us in the form of a welcome pack. Recruitment process: HR call Technical Interview Interview with the dedicated Client Final decision/ Feedback Sounds interesting? Click "Apply" and have a chance to hear more!

🏢 Summary: The offer is for a Change Management Consultant responsible for driving adoption of new tools and processes by translating complex technical initiatives into clear, business-focused communication. The role involves stakeholder analysis, engagement campaigns, training enablement, and tracking adoption metrics. The consultant collaborates cross-functionally to ensure successful implementation of technology-driven changes. 🗂️ Requirements: Experience with change-management frameworks, Ability to translate technical concepts into business language, Experience collaborating with program and product teams, Strong stakeholder analysis skills, Ability to create training materials and workshops, Experience defining KPIs and tracking adoption metrics, Ability to quickly learn new software and technologies 📃 Skills: ChangeManagement, StakeholderAnalysis, KPI, Communication, Training, Workshops, Teams, Slack, Architecture, AdoptionMetrics 🏢 Description: Billennium is a global technology company with over 20 years of experience, committed to innovation and empowering businesses. As an employer, we offer a supportive, growth-focused environment where collaboration and creativity thrive. Join us to shape the future of technology together! We are seeking a Change Management Consultant who will partner with Program and Product Managers, Communications teams, and other stakeholders to drive the adoption of new tools and processes. What you will do Tell the Story: Turn technical work into clear, compelling success stories. Translate Tech: Break down complex architecture into simple benefit‑focused content. Build Awareness: Create internal campaigns that promote programs and deliverables. Analyze Stakeholders: Identify how changes impact each user group. Drive Engagement: Use varied channels (Teams/Slack, AMAs, demos) to communicate. Enable Training: Produce cheat sheets, videos, and run workshops. Grow Change Network: Develop a Super User community for support and feedback. Track Adoption: Define KPIs and monitor where users struggle What we are looking for Solid experience with change‑management frameworks and the flexibility to adapt them creatively to needs. Technical-to-Business Translation: Ability to understand complex technical topics and communicate them clearly to executives and non‑technical audiences. Cross‑Functional Collaboration: Proven experience working with program, product, project, and communications teams. Exceptional Communication & Empathy: Strong storytelling, conflict‑resolution skills, and the ability to connect with stakeholders at all levels. Fast Learning & Tech Adoption: Ability to quickly grasp new software and processes and explain their value to others. Perks and benefits (our offer) Comprehensive benefits - enjoy Udemy for Business, private medical care, Multisport card, veterinary package, language lessons, and shopping vouchers. Flexibility - adaptable working hours and remote/hybrid work options to suit your lifestyle & location. Career growth - access opportunities for professional development and learning, including perks related to our official partnerships with global IT giants: Microsoft, AWS, Snowflake, Salesforce & more. Global collaboration - work with a diverse, international team. Innovative environment - be part of a forward-thinking and growth-oriented workplace. Engaging community – Work with passionate professionals and participate in team-building events, hackathons, and CSR initiatives to make an impact beyond work. Team-building events including our company tradition (annual company event in Mazury). A pleasant surprise to start your journey with us in the form of a welcome pack. Recruitment process: HR call Technical Interview Interview with the dedicated Client Final decision/ Feedback Sounds interesting? Click "Apply" and have a chance to hear more!

🏢 Summary: Opportunity for a Data Scientist to build and optimize a near real-time AI-driven intelligence platform in a highly regulated environment. The role focuses on developing scalable data pipelines, integrating and monitoring Large Language Models, and transforming unstructured data into actionable insights. You will drive automation and model performance within a cloud-based data ecosystem. 🗂️ Requirements: Expert-level Python for data processing and AI orchestration, Experience building scalable ETL/ELT pipelines, Hands-on experience with LLM frameworks and prompt engineering, Experience ingesting data from APIs, RSS feeds, and web scraping, Experience managing raw data structures in cloud data platforms, Experience deploying AI models to production environments, Knowledge of model monitoring and hallucination detection, Proficiency with version control using Git 📃 Skills: Python, ETL, ELT, LLM, NLP, APIs, RSS, WebScraping, Git, Cloud, DevOps, PromptEngineering 🏢 Description: Billennium is a global technology company with over 20 years of experience, committed to innovation and empowering businesses. As an employer, we offer a supportive, growth-focused environment where collaboration and creativity thrive. Join us to shape the future of technology together! We are looking for a skilled Data Scientist to join an innovative AI initiative for a client in a highly regulated industry. The project focuses on transforming a periodic monitoring tool into a near real-time, daily intelligence platform Key Responsibilities: Ingestion Pipeline Development: Design, build, and maintain robust data pipelines using Python and cloud-based data platforms to ingest data from diverse sources such as RSS feeds, APIs, and web scraping. Data Platform Architecture: Manage raw data structures and ensure seamless data flow between ingestion pipelines and downstream applications. LLM Integration & Optimization: Implement and refine Large Language Models (LLMs) to categorize, summarize, and extract advanced insights (“Reasoning Modelling”) from unstructured data. LLM Ops: Establish monitoring frameworks for model performance, including hallucination detection, and implement continuous improvement loops based on expert feedback. Scalability & Automation: Support the transition to a fully automated 24-hour processing cycle within the data platform ecosystem. Technical Skills & Qualifications: Programming: Expert-level Python, particularly in data processing and AI orchestration. Data Engineering: Strong experience building scalable ETL/ELT pipelines in modern data platforms. AI / NLP: Hands-on experience with LLM frameworks and prompt engineering. Web Data Ingestion: Proficiency in handling RSS feeds, APIs, and both structured and unstructured web data. DevOps / LLM Ops: Familiarity with version control (Git) and deploying AI models into production environments. Perks and benefits: Comprehensive benefits - enjoy Udemy for Business, private medical care, Multisport card, veterinary package, language lessons, and shopping vouchers. Flexibility - adaptable working hours and remote/hybrid work options to suit your lifestyle & location. Career growth - access opportunities for professional development and learning, including perks related to our official partnerships with global IT giants: Microsoft, AWS, Snowflake, Salesforce & more. Global collaboration - work with a diverse, international team. Innovative environment - be part of a forward-thinking and growth-oriented workplace. Engaging community – Work with passionate professionals and participate in team-building events, hackathons, and CSR initiatives to make an impact beyond work. Team-building events including our company tradition (annual company event in Mazury ). A pleasant surprise to start your journey with us in the form of a welcome pack. Recruitment process: HR call Technical Interview Interview with the dedicated Client Final decision/ Feedback Sounds interesting? Click "Apply" and have a chance to hear more!

🏢 Summary: Senior Technical Product Owner responsible for translating product strategy into actionable backlog and delivering incremental value for technical/platform products. The role focuses on close collaboration with engineering teams working on developer platforms, CI/CD pipelines, observability, and release automation. It requires strong ownership of backlog management and clear definition of user stories within Agile environments. 🗂️ Requirements: Hands-on experience with developer platforms, CI/CD pipelines, observability, and release automation, Experience owning and prioritizing backlog for technical/platform products, Ability to translate product strategy into executable increments, Experience working in large and complex organizational environments, Practical experience in Agile (Scrum), sprint and quarterly planning, Proficiency with Jira and Confluence for backlog management and documentation, Ability to define clear user stories and acceptance criteria, Experience facilitating workshops and translating technical concepts into requirements, Fluent English (min. B2) 📃 Skills: Jira, Confluence, Scrum, CI/CD, Observability, Automation, Agile, English 🏢 Description: More about us Billennium is a global technology company with over 20 years of experience, committed to innovation and empowering businesses. As an employer, we offer a supportive, growth-focused environment where collaboration and creativity thrive. Join us to shape the future of technology together! About the role We are seeking an experienced Senior Technical Product Owner to join our team. Key Responsibilities: Translate product strategy into actionable backlog and deliver value incrementally. Define clear user stories and acceptance criteria to enable development. Own and continuously refine the product backlog to maximize delivered value. Requirements: ·       Hands-on experience working with engineering teams on developer platforms, CI/CD pipelines, observability, and release automation. ·       Experience owning and prioritizing a product backlog for technical/platform products, translating product strategy into executable increments. ·       Experience in large and complex organizational environments and communicating information to various stakeholders in a way that is appropriate for the target audience. ·       Experience in Agile methodologies (Scrum), with practical experience in sprint and quarterly planning. · Proficiency with product management and collaboration tools such as Jira and Confluence, ensuring effective backlog management, documentation, and cross-team alignment. ·       Proven ability to define clear user stories, acceptance criteria, and prioritized backlogs for technical product. ·       Experience in facilitating workshops, translating and deriving product requirements from technical concepts for different requirement groups. · Fluent English (spoken and written, at least B2 level). Nice to Have: ·       Broad technical understanding of building and operating the following capabilities in the context of private data centre and public cloud hosting: o   Container run-time platforms such as Kubernetes, o   Identity & Access Management (IAM) and Role-Based Access Control (RBAC), o   CI / CD toolchain components, o   Observability / Monitoring. Perks and benefits: Comprehensive benefits - enjoy Udemy for Business, private medical care, Multisport card, veterinary package, language lessons, and shopping vouchers. Flexibility - adaptable working hours and remote/hybrid work options to suit your lifestyle & location. Career growth - access opportunities for professional development and learning, including perks related to our official partnerships with global IT giants: Microsoft, AWS, Snowflake, Salesforce & more. Global collaboration - work with a diverse, international team. Innovative environment - be part of a forward-thinking and growth-oriented workplace. Engaging community – Work with passionate professionals and participate in team-building events, hackathons, and CSR initiatives to make an impact beyond work. Team-building events including our company tradition (annual company event in Mazury ). A pleasant surprise to start your journey with us in the form of a welcome pack. Recruitment process: HR call Technical Interview Interview with the dedicated Client Final decision/ Feedback Sounds interesting? Click "Apply" and have a chance to hear more!