👉 Backend Data Engineer

🟣 You will be:

• designing, building, and operating scalable Java-based backend services supporting subscription and merchandising platforms,

• developing APIs and backend systems that enable personalized and data-driven conversion experiences,

• collaborating closely with product managers, data scientists, and other engineers to solve complex, business-critical problems,

• building and improving data pipelines that support experimentation, heuristics, and machine learning use cases,

• contributing to architectural decisions with a focus on scalability, reliability, and long-term maintainability,

• owning services end-to-end in production, including monitoring, observability, and continuous improvement,

• participating in code reviews and knowledge sharing to strengthen team-wide engineering standards.

🟣 Your profile:

• 5+ years of professional experience in backend development using Java,

• strong computer science fundamentals, including data structures, algorithms, and distributed systems,

• hands-on experience designing and operating cloud-native services (e.g. GCP or AWS),

• experience building and maintaining high-traffic, production-grade systems,

• solid understanding of reliability, observability, and performance in distributed environments,

• experience designing and consuming APIs and translating business needs into technical solutions,

• strong collaboration skills and ability to take ownership from concept through delivery,

• experience working with distributed systems at global scale,

• familiarity with data pipelines and systems supporting experimentation or analytics,

• experience working in cross-functional teams with product and data stakeholders,

• exposure to service-oriented or microservice architectures,

• practical experience using AI-powered assistants (e.g. Claude Code, GitHub Copilot, Cursor) to improve productivity, quality, or decision-making in software delivery.

🟣 Nice to have:

• experience with gRPC,

• hands-on knowledge of Google Cloud Platform services such as BigQuery or Bigtable,

• experience with CMS integrations,

• exposure to machine learning–driven systems or personalization platforms,

• background in experimentation frameworks, heuristics, or decision engines,

• interest in and familiarity with emerging AI-driven practices (e.g. agent-based workflows, automation patterns, AI-augmented development), with a willingness to explore and experiment beyond standard approaches.

Work from the European Union region and a work permit are required.

🟣 Recruitment Process: CV review – HR Call – Interview – Client Interview – Decision

🎁 Benefits 🎁

✍ Development:

• development budget of up to 6,800 PLN,

• we fund certifications e.g.: AWS, Azure, ISTQB, PSM,

• access to Udemy, Safari Books Online and more,

• events and technology conferences,

• technology Guilds,

• internal training,

• Xebia Library,

• Xebia Upskill.

🩺 We take care of your health:

• private medical healthcare,

• multiSport card - we subsidise a MultiSport card,

• mental Health Support.

🤸‍♂️ We are flexible:

• flexible working hours,

• B2B or permanent contract,

• contract for an indefinite period.