Senior/Lead Python Developer

Join our team in Warsaw, where we’re collaborating on a cutting-edge fintech venture with a global industry leader. Together with our Partner – Klarna, we’re building an IT hub designed to drive innovation in digital payment solutions. We’re on the lookout for top-tier engineers who thrive in dynamic, forward-thinking environments. Spyrosoft is leading the recruitment process, facilitating a seamless experience for candidates who are ready to shape the future of online shopping and payments.

This opportunity is ideal for engineers who value independence, proactiveness, and flexibility. Our engagement begins with a B2B contract through Spyrosoft, transitioning to a direct contract with our Partner.

We offer a hybrid work model in Warsaw’s vibrant Wola district. English fluency and eligibility to work in Poland are essential, as is the successful completion of a background check to meet the rigorous standards of the financial domain.

Our process:

• CV selection
• Initial recruitment screening
• Technical interview
• Online logic test
• Cultural fit interview

Requirements

• Minimum 5 years of experience in Python – essential for backend development, scripting, and automation tasks
• Mastery of Python language features, data structures (lists, dictionaries), web frameworks (Django, Flask, FastAPI), and testing (pytest)
• Experience with AWS EC2, Terraform, CloudFormation, and Kubernetes
• Familiarity with integrating 3rd-party APIs, working with databases (SQL, NoSQL), cloud providers (AWS, Azure), and CI/CD pipelines
• Proficiency with Docker and Kubernetes for application containerization and orchestration
• Expertise in setting up CI/CD pipelines with Jenkins, GitHub Actions, or CircleCI for automated builds, tests, and deployments
• Ability to create and optimize AI prompts for tools like GitHub Copilot, improving automated code generation
• Knowledge of industry standards: unit testing, linting (PyLint), and security scanning (Snyk) for software reliability
• Understanding of microservice architecture, event-driven architecture (Kafka), domain-driven design (DDD), and CQRS
• Expertise in designing and managing APIs (REST, gRPC, GraphQL) using tools like FastAPI, Flask, or Django
• Ability to design cloud networking configurations (e.g., VPCs, load balancers) and work with serverless applications like AWS Lambda
• Familiarity with methods like canary releases, blue-green deployments, and A/B testing for smooth software updates