Middle Python Developer

Join us in building a large-scale fintech platform that’s currently in an active expansion phase thanks to a rapidly increasing number of users.
Our product is much more than a payment system — it’s a high-load solution with complex business logic, massive volumes of transactions, and rich data streams.

Responsibilities

• Develop and maintain asynchronous backend services (FastAPI, ARQ, service-oriented and microservice applications).

• Write clean, testable, and maintainable code.

• Participate in design discussions and suggest improvements to performance and developer experience.

• Collaborate openly with backend, frontend, DevOps, and product teams.

Requirements

• 3+ years of hands-on experience with Python (asyncio, typing, pydantic);

• Solid experience with SQLAlchemy 2.0 and Alembic;

• Proficiency in writing unit and integration tests (Pytest/Unittest);

• Hands-on experience with FastAPI and async task processing (ARQ/Celery/RQ);

• Database skills: PostgreSQL (indexes, transactions, RLS). Knowledge of TimescaleDB/ClickHouse is a plus;

• Experience in database query optimisation (EXPLAIN, keyset pagination, batching);

• Understanding of idempotency and outbox/event sourcing principles;

• Experience with Docker, docker-compose, local environments;

• Basic knowledge of Kubernetes and AWS (SQS, RDS, S3) is a plus;

• Understanding of observability (structured logs, traces, metrics);

• PCI DSS/ISO 27001 awareness will be a plus;

• Experience in Fintech domain will be a plus;

• English: intermediate or higher.

We offer

• Full-time remote job.

• Paid annual leave.

• Work with professional team and friendly atmosphere.

• Minimum of bureaucracy.