Sr. Data Engineer - backend oriented (Java/Python/Go)

Responsibilities • Build and maintain scalable backend systems supporting investment and AI-driven applications, owning them end-to-end • Develop batch and streaming data pipelines for ingestion, processing, and delivery across systems and models • Implement and integrate generative AI and LLM solutions, including APIs, embeddings, and production workflows • Design and maintain reliable microservices and APIs with a focus on performance, scalability, and security • Improve system stability through monitoring, observability, and performance optimisation • Collaborate with cross-functional teams to move solutions from prototype to production • Build and maintain CI/CD pipelines, automated testing, and deployment processes • Contribute to engineering best practices and support team capability growth • Ensure compliance with security and data governance standards Requirements • 5+ years of backend or software engineering experience • Experience building data pipelines (batch and streaming) • Hands-on experience with AI/ML or generative AI in production environments • Strong coding skills in Java, Python, or Go • Experience with cloud platforms, Docker, and container orchestration • Knowledge of CI/CD, testing, and infrastructure automation • Strong SQL and data modelling skills • Good communication and collaboration skills • Eligibility to work in Poland (Warsaw office) • High ethical standards