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Company: Appercut Position: Senior Python Engineer (Highload) 💵 4.500 - 7.000 gross Employment: full-time **Required experience: **5+ years of backend development in Python Location: office in Warsaw

Appercut is a Polish product IT company creating mobile applications used by millions. Our mission is to create digital products in the Digital Health sector that genuinely help people.

Our flagship product is Dr. Kegel: 4M+ installations, 4.8/5 rating Top 6 in the USA, Top 5 in Canada, Top 1 in Europe and LATAM

What we are looking for:

• 5+ years of backend development in Python
• Based in Warsaw
• Excellent knowledge of Python 3 with a focus on asynchronous programming and performance
• Experience with FastAPI and building scalable APIs
• Solid knowledge of PostgreSQL: schema design, indexing, query optimization (EXPLAIN)
• Experience with task queues: Celery (Redis / RabbitMQ)
• Managing migrations via Alembic / Yoyo
• Understanding of infrastructure and deployment processes: Docker, CI/CD, AWS (ECS / EC2), networking fundamentals
• Experience in setting up monitoring, logging, and effective debugging in production

Key Requirements: Independence in decision-making, well-developed architectural thinking, and readiness to take responsibility for service stability at all stages — from writing code to deployment and production support.

What you will be doing:

• Developing and enhancing backend services: designing architecture, implementing and supporting APIs
• Improving performance and stability: analyzing bottlenecks, optimizing code and queries, ensuring reliable service operation
• Working with queues and asynchronous processes: designing and supporting Celery-based solutions
• Participating in infrastructure development: deployment, configuration, and maintenance of services in production