Senior Python Engineer

We are looking for a Senior Python Engineer to join a cutting-edge project for an AI-focused client, where you’ll work on building real-world LLM-powered products and next-generation backend systems.

This role is a great fit for an engineer who enjoys working at the intersection of AI, backend development, and scalable systems, and is confident turning complex AI workflows into reliable, production-ready services. You’ll play a key role in developing MCP-based integrations, designing backend APIs, and shaping how modern AI applications operate in real environments.

You’ll collaborate with a senior-level engineering team, contribute to high-impact AI solutions, and have the opportunity to grow deeper into areas like LLM infrastructure, embeddings, and evaluation frameworks.

Your responsibilities will include:

• Build and maintain Python-based MCP services and integrations.
• Develop backend APIs for LLM-powered products using FastAPI or FastMCP.
• Work on prompting, tool integration, reliability, and production readiness of AI workflows.
• Design, build, and maintain scalable and reliable backend systems.
• Collaborate with cross-functional teams to deliver high-quality technical solutions.
• Participate in improving system performance, stability, and maintainability.
• Expand into modern LLM infrastructure and evaluation practices as needed.

What we expect from you:

• English level B2 or higher for effective technical communication.
• Strong hands-on experience with Python.
• Solid experience with MCP and prompting concepts.
• Proven backend engineering experience with FastAPI or similar frameworks.
• Experience designing and maintaining APIs and backend services.
• Proficiency with Git and standard version control workflows.
• Strong problem-solving skills and ability to work independently.
• Experience working in distributed teams within the EU time zone.

Nice to Have:

• Exposure to Kubernetes.
• Understanding of embeddings and evaluation (evals) workflows.
• Familiarity with LLM inference concepts such as temperature, top_p, guardrails, and bias mitigation.
• Experience working with AI-driven or LLM-based systems.
• Experience with production-grade infrastructure and scalable services.

What we offer:

• Interesting projects and challenges that accelerate professional and personal growth
• Long-term project
• 15 paid vacation days per year
• 5 paid sick leave days per year
• Flexible, results-focused schedule; hybrid work or remote (office with city view + work from home)
• Comfortable, stylish office in Kyiv with generator/battery backup 🇺🇦
• Equal salary, medical insurance, trial period
• Team-building events: parties, online activities, picnics, and more
• Opportunity to work in a Top-employee company (DOU 2025)

Ready to work with us and dive into this amazing project? Feel free to apply and we`ll contact you soon!