Senior Python Developer

We are looking for someone who is passionate about building scalable, high-quality software. You’re a developer who doesn’t just write code but deeply cares about architecture, maintainability, and security. As a collaborative team player, you enjoy solving complex problems within a microservices environment and are eager to leverage modern AI-assisted development tools to stay ahead of the curve. What's more, you bring a strong business mindset and a client-oriented approach, ensuring that our technical solutions always deliver real value.

The recruitment process consists of three steps:

• a 45 min intro online meeting with HR

• a technical interview (around 1.5h)

• feedback 

- you have extensive commercial experience in development of web applications using Python (3.10+)
- you are proficient in more than one Python framework (Django, Flask, FastAPI etc.)
- you have practical experience applying Domain-Driven Design and Clean Architecture in production
- you have strong async Python skills: asyncio, async/await, and async testing patterns
- you write fully type-hinted Python as a matter of habit
- you have production experience with MongoDB, including schema design and aggregation pipelines
- you know how to effectively use relational and non-relational databases
- you are able to build modern, secure and efficient APIs
- you have experience with event-driven architectures and Kafka (or comparable streaming platforms)
- you have a disciplined testing practice, including integration tests against real infrastructure
- you are using design patterns and principles of delivering high quality, maintainable and testable code
- you work agentically with AI coding assistants (Claude Code, Cursor, or similar)
- you are proficient in using Docker and docker-compose
- you are familiar with AWS services (EC2, ECS, SQS, S3, Lambda)
- you have experience with CI/CD tools
- you have practical knowledge of using Celery and message brokers (Redis, RabbitMQ)
- you are fluent in both spoken and written English
- you know security issues and know how to ensure application security (OWASP, SAST, Semgrep)

- familiarity with TDD / DDD approach
- experience with WebSocket-based real-time systems
- mentoring skills and experience in onboarding junior/mid developers 
- experience in leading the project as a lead developer
- very good communication skills and proactive attitude in architectural discussions