Impressit is hiring: Senior Python Engineer (Poland) in Poland

About the project Impressitis looking for a Senior Python Developer to join a cross-functional product team working on a large-scale Finance & Risk platform used by a global enterprise in the energy trading domain. The product enhances flexibility and operational resilience within financial reporting processes, automates key workflows, supports PnL adjustments and sign-off procedures, and improves transparency and control across the organization’s finance architecture. This is a unique opportunity to work on a high-impact enterprise system with real-world influence, while collaborating with international teams and using modern cloud-native technologies. What you will do Build backend Python applications using modern frameworks and microservice patterns Translate functional requirements into scalable technical solutions Deliver high-quality features following established project standards and best practices Develop components within an event-driven microservices architecture Manage and optimize relational databases and address performance issues Design and maintain complex enterprise integrations Work with cloud platforms (Azure), CI/CD pipelines, caching, and SQL databases Optimize performance, scalability, and reliability using monitoring and tuning tools Implement security best practices and ensure compliance with enterprise standards Participate in architectural discussions and solution design Collaborate with product, engineering, and domain experts across global teams What we expect 10+ years of commercial experience as a Python Developer Strong hands‑on experience with Python, including FastAPI and async processing Experience building event‑driven microservices Solid experience with Azure, containerization, and cloud‑native development Strong SQL skills and experience working with relational databases (e.g., SQL Server) Proven ability to write testable code (BDD practices as a plus) Good understanding of CI/CD (GitHub Actions is a plus) Experience with complex system integrations in enterprise environments Strong debugging and performance optimization skills (profiling, tuning) Excellent communicator, comfortable working in global cross‑functional teams Strong understanding of CS fundamentals (SOLID principles, DDD as a plus) Experience in finance, risk management, trading, or energy trading Upper‑Intermediate or higher level of English As a plus Experience with Domain‑Driven Design (DDD) Background mixing data engineering and software engineering Previous experience in finance, trading, or risk domains Passion for clean code, architecture patterns, and high development standards Ready to join the team? Employee benefits We are passionate about everything we do, and with Impressit you will get: Professional education and training budget #J-18808-Ljbffr