Senior / Staff Python Engineer
Summary
Senior/Staff Python backend engineer working on-site at a client's office in Warsaw, building and maintaining scalable backend services and APIs and designing cloud-native, event-driven architectures on AWS. The role also involves shaping architecture and engineering standards and mentoring other engineers. Core stack: Python, APIs, SQL, AWS.
Senior / Staff Python Engineer
Miejsce pracy: Warszawa
Technologies we use
Expected
- Python
- API
- SQL
- AWS
Optional
- JavaScript
This is how we organize our work
This is how we work
- at the client's site
Your responsibilities
- Designing, developing and maintaining scalable backend services and applications using Python.
- Building and integrating APIs, services and data-driven solutions with a focus on reliability and maintainability.
- Designing and implementing cloud-native solutions on AWS, including distributed and event-driven architectures.
- Contributing to technical design, architecture decisions and engineering standards across the development lifecycle.
- Collaborating with distributed engineering teams, supporting code quality through testing and reviews, and mentoring less experienced engineers.
Our requirements
- Extensive commercial experience with Python and backend engineering
- Experience designing and building scalable / distributed systems
- Strong understanding of system architecture and technical design
- Strong hands‑on AWS knowledge
- Experience with cloud‑native architectures and technical trade‑offs
- Ability to influence technical direction and engineering standards
- Experience mentoring or coaching other engineers
- Strong ownership mindset around reliability, maintainability and quality
- Experience with microservices, event‑driven architectures and distributed systems will be highly relevant.
- AWS / cloud platforms
- Microservices and event-driven systems
- HTMX
- JavaScript / web application fundamentals
- AI / GenAI-related solutions
- Banking, fintech or other regulated environments
SQUARE ONE RESOURCES sp. z o.o.
At Square One Poland we link IT experts with the business. With over 25 years of experience, we specialize in recruitment processes on a global scale. Despite years of experience, we still have a startup DNA and this is our advantage. Our offices are located in London and Warsaw, however, we can reach clients from all over the world, from start-ups to big worldwide corporations.