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