June 9, 2026

Senior Technical Product Owner

Senior • Hybrid

Warsaw, Poland

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!

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Remote

Warsaw, Poland

🏢 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!