Sonia Solutions is hiring a Python Software Engineer (all) - Mid-level

Sonia Solutions is looking for a Mid-level Python Software Engineer to build scalable, reliable backend services and APIs for our AI-driven healthcare products. You will work closely with engineering and ML teams to design and implement systems for real-time communication, data processing, and automation.

What You'll Do

• Develop and maintain scalable backend services using Python 3 (with async and strong typing).
• Design and implement RESTful APIs and real-time communication via WebSockets.
• Write clean, maintainable, and well-tested code following best engineering practices.
• Debug and troubleshoot production issues to ensure reliability and performance.
• Work with containerization (Docker) and contribute to CI/CD pipeline improvements.
• Collaborate with cross-functional teams to integrate APIs and backend systems with ML services.
• Proactively bring in ideas for improving architecture, automation, and processes.

What We're Looking For

• 3+ years of professional experience in software development with Python 3.
• Strong knowledge of asynchronous programming and type hinting in Python.
• Experience with at least one web framework (FastAPI, Django, or Flask).
• Proven experience in building and consuming RESTful APIs.
• Working experience with real-time communication using WebSockets (Socket.IO, FastAPI WebSockets, etc.).
• Familiarity with version control systems (Git, GitLab, Bitbucket).
• Practical knowledge of testing frameworks and debugging in production environments.
• Experience with containerization (Docker) and basic CI/CD concepts.
• Solid understanding of software engineering principles, design patterns, and clean code practices.

Nice to Have

• Experience working with LLMs (routing, parsing, error handling, guardrails).
• Knowledge of message brokers (RabbitMQ, Kafka, Redis Pub/Sub).
• Exposure to NoSQL databases (Redis).
• Familiarity with DevOps tools or Kubernetes environments.
• Contributions to open-source projects.

Technical Stack

• Python 3, FastAPI, Django, Flask, WebSockets, Docker, Git, GitLab, Bitbucket

Team & Environment

Work closely with engineering and ML teams.

Benefits & Compensation

• Full ownership of critical backend components in a fast-growing AI environment.
• A team that values curiosity, learning, and pragmatic problem-solving.
• Flexible working arrangements.
• Competitive salary depending on experience.
• Work on products that directly impact healthcare innovation.

Work Mode

This is a hybrid position based in Luxembourg or Berlin, Germany.

Sonia Solutions is an equal opportunity employer.