June 9, 2026

Organizational Change Manager

Senior • Remote

Warsaw, Poland

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!

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Senior FullStack Developer

Senior

Remote

🏢 Summary: Long-term project for a Java Full Stack Developer to design and maintain a regulated clinical platform in the pharma industry, covering both frontend and backend in a cloud-based AWS environment. The role focuses on delivering high-quality, compliant, and secure solutions aligned with medical device regulations. You will work on end-to-end features within a cross-functional team using modern technologies. 🗂️ Requirements: Professional experience in modern software development, Strong knowledge of Java and Spring Boot, Strong knowledge of Angular and TypeScript, Experience with AWS cloud environments, Experience with relational databases, especially PostgreSQL, Experience with messaging or workflow systems, Experience with CI/CD pipelines and automated testing, Experience working with regulated or complex systems, English proficiency at B2 level or higher, Polish proficiency at B2 level or higher 📃 Skills: Java, Spring, SpringBoot, Angular, TypeScript, SCSS, RxJS, NgRx, Nx, Maven, PostgreSQL, Liquibase, ActiveMQ, AWS, S3, Lambda, KMS, Activiti, BPMN, SAML, JWT, Spark, Parquet, Docker, CI/CD, Okta 🏢 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 Client We are looking for an experienced Java Full Stack Developer who will join a long-term project for our client in pharma industry. What will you do: Design, develop, and maintain frontend and backend components of a regulated clinical platform Implement high-quality, traceable, and design-controlled code in compliance with medical device regulations and quality standards Collaborate with cross-functional teams (product, QA, DevOps, clinical experts) to deliver end-to-end features Ensure system reliability, security, and performance in a cloud-based, multi-tenant AWS environment Contribute to testing, documentation, and continuous improvement of development and deployment processes What we are looking for: Professional experience in modern software development, preferably in complex or regulated systems Strong knowledge of backend development and frontend development Frontend Angular 20, Nx 22, NgRx, TypeScript 5.9, SCSS, RxJS 7, Roche ONE Design System, Okta (SAML SSO), IGV.js, Luxon, ngx-translate Backend Java, Spring Boot, Maven, PostgreSQL, Liquibase, ActiveMQ, AWS S3, AWS Lambda, AWS KMS, Activiti 6 (BPMN), SAML 2.0, JWT, SnpEff, GATK, Apache Parquet, Apache Spark Experience with cloud-based architectures, ideally AWS , and containerized environments Familiarity with relational databases (e.g. PostgreSQL ) and messaging or workflow systems Experience with automated testing, CI/CD pipelines, and code quality tools English and Polish proficiency at B2 level or higher, enabling effective communication in an international environment 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!