Mid-Level Python Developer (Backend)

About Sopra Steria Bulgaria

Sopra Steria Bulgaria is part of the Sopra Steria Group, one of Europe's top technology consulting companies. We partner with customers across Germany and the DACH region, delivering software engineering, digital transformation, and business consulting services through international teams and long-term customer partnerships.

Joining us means being part of an international team where collaboration, knowledge sharing, and continuous learning are part of everyday work.

The world is how we shape it.

Let's shape it together.

About the Role

We are looking for a Backend Engineer to build, maintain, and optimize high-concurrency backend systems for client projects. You will own features end-to-end, taking them from technical design to deployment. You will leverage modern async Python, strict type-safety, and AI-assisted workflows to ship resilient code fast.

Responsibilities

Feature Delivery: Own backend features end-to-end from schema design and API endpoints to production deployment.; API & Core Development: Write clean, well-tested async Python code (e.g., FastAPI) and apply modern type-safety practices.; Data & System Integration: Integrate backend services with relational databases (PostgreSQL, SQLAlchemy/SQLModel), caching layers, and asynchronous message queues.; Smart Engineering: Integrate AI-assisted workflows (e.g., Cursor, GitHub Copilot) across your daily lifecycle to rapidly prototype, write boilerplate, expand test coverage, and debug faster.; Quality & Reliability: Write comprehensive automated tests, optimize query performance, and ensure feature reliability in production.; Team Collaboration: Work alongside cross-functional squads and client teams to refine technical specs, conduct code reviews, and ship software iteratively.

Requirements

Modern Python: Strong hands-on experience with Python 3.11+, including async programming (asyncio), typing, and REST API frameworks (e.g., FastAPI).; Database & Data Modeling: Practical experience working with relational databases (e.g., PostgreSQL) and writing efficient SQL/ORM queries.; Engineering Practices: Proven habits around automated testing (pytest), code quality, structured logging, and git-based workflows.; Production Delivery: Experience shipping code to production, working with containers (Docker), and understanding basic deployment processes.; Communication: Professional English fluency, ability to explain technical decisions clearly to teammates.

Nice to have

Practical experience with AI coding tools (e.g., GitHub Copilot, Cursor), or openness to integrating them into your development habits.; Knowledge of integrating AI/LLM components into backend workflows (e.g., LangChain, vector databases).; Experience with message brokers (RabbitMQ, Kafka) or key-value stores (Redis).; Familiarity with modern package managers, linters, and formatters (e.g., uv, Poetry, Ruff).; Familiarity with cloud platforms (AWS, GCP, or Azure) and CI/CD pipelines.; German language skills (B2+).

Benefits

Global project experience with meaningful impact; Continuous professional and personal development opportunities; Approachable leadership and open communication; Empowered teams driving #OneTeam success; Competitive remuneration package; Food vouchers; 26 days of annual paid leave; Comprehensive health, life, and travel insurance; Extensive professional training programmes; Multisport cards; Modern office facilities are conveniently located at Metro Station G.M. Dimitrov Blvd.