Senior Python Developer Ukraine What is the project, and why should you care? AI companion (assistant) on your shoulder who’s always watching and giving you insights in what’s happening and what you want to achieve. Its mission is to empower users to effortlessly capture their thoughts, conversations, and ideas via voice, store them securely, retrieve insights through smart AI-powered search, and receive personalized coaching prompts, respecting privacy and user control. We’re developing a next-generation AI platform — a multi-agent ecosystem powered by real-time voice-to-voice interfaces, serverless execution, Vertex AI orchestration, and Gen-AI frameworks like LangChain and AutoGen. It’s a rare chance to engineer at the intersection of cognition, language, and systems. You will be an excellent fit for this position if you have: 5+ years of professional experience with Python (3.9+). Strong background in building scalable backend services (FastAPI/Django/Flask). Hands-on experience with AI/ML integration (LLMs, RAG, NLP, vector databases, MCPs) — must-have. Commercial experience with at least one AI framework: LangChain, CrewAI, Google Agent Development Kit, or AutoGen. Solid knowledge of SQL/NoSQL databases (PostgreSQL, MongoDB, DynamoDB). Familiarity with cloud platforms (GCP preferred), Serverless architecture, Docker/Kubernetes, and CI/CD pipelines. Strong problem-solving and communication skills; proactive, ownership-driven mindset. Here are some of the things you’ll be working on: Develop and maintain backend services. As a must-have, apply Vibecoding in Cursor as part of the development workflow to accelerate and refine code delivery. Design and optimize API endpoints for mobile and web clients. Integrate AI/ML models, embeddings, and vector search into production workflows. Ensure scalability, performance, and security of backend systems. Collaborate with mobile and DevOps teammates to deliver end-to-end solutions. Write clean, testable code and maintain high-quality standards.