![Tetiana Pustovoitova](https://jobicy.com/react/themes/app/images/avatar.jpg) Tetiana Pustovoitova # Senior AI Engineer Open to offers · Member since 21 Jul 2026 [Message](https://jobicy.com/dashboard-page.md) ShareLocationFrankfurt am Main, GermanyDesired salaryUnspecifiedWork preferenceHybridExperience levelSenior * [Overview](#overview) * [Portfolio 0](#portfolio) * [Services 0](#services) ## About Professional summaryI am a Senior AI Engineer with 10+ years of software engineering experience and more than 3 years building production AI-powered applications. I specialize in end-to-end delivery of AI features, including LLM integration, workflow design, production deployment, monitoring, evaluation, and continuous optimization. My core technical strengths include TypeScript, Node.js, Python, LLM APIs, AI agents, RAG pipelines, tool-based workflows, prompt engineering, and AI system reliability. I have hands-on experience building user-facing AI products with structured outputs, context management, retrieval systems, and multi-step reasoning workflows. I also focus on improving AI quality through evaluation frameworks, observability, experimentation, and production feedback loops to reduce failures and improve consistency. I enjoy working across product, engineering, and business teams to turn ambiguous AI ideas into scalable solutions with measurable impact. ## Skills 33 capabilities[API Design](https://jobicy.com/talent/api-design.md)[AWS](https://jobicy.com/talent/aws.md)[Azure](https://jobicy.com/talent/azure.md)[CI CD](https://jobicy.com/talent/ci-cd.md)[Claude Code](https://jobicy.com/talent/claude-code.md)[Codex](https://jobicy.com/talent/codex.md)[Cursor](https://jobicy.com/talent/cursor.md)[Docker](https://jobicy.com/talent/docker.md)[Embeddings](https://jobicy.com/talent/embeddings.md)[fastAPI](https://jobicy.com/talent/fastapi.md)[Function Calling](https://jobicy.com/talent/function-calling.md)[GitHub Actions](https://jobicy.com/talent/github-actions.md)[Java](https://jobicy.com/talent/java.md)[JavaScript](https://jobicy.com/talent/javascript.md)[Kubernetes](https://jobicy.com/talent/kubernetes.md)[Langfuse](https://jobicy.com/talent/langfuse.md)[LangGraph](https://jobicy.com/talent/langgraph.md)[Langsmith](https://jobicy.com/talent/langsmith.md)[LlamaIndex](https://jobicy.com/talent/llamaindex.md)[Microservices](https://jobicy.com/talent/microservices.md)[MongoDB](https://jobicy.com/talent/mongodb.md)[Next.js](https://jobicy.com/talent/next-js.md)[PostgreSQL](https://jobicy.com/talent/postgresql.md)[Prompt Engineering](https://jobicy.com/talent/prompt-engineering.md)[Python](https://jobicy.com/talent/python.md)[React](https://jobicy.com/talent/react.md)[Redis](https://jobicy.com/talent/redis.md)[REST APIs](https://jobicy.com/talent/rest-apis.md)[Semantic Search](https://jobicy.com/talent/semantic-search.md)[SQL](https://jobicy.com/talent/sql.md)[TypeScript](https://jobicy.com/talent/typescript.md)[Vector Search](https://jobicy.com/talent/vector-search.md)[Windsurf](https://jobicy.com/talent/windsurf.md) ## Tech stack & tools Working toolkit ### Application Hosting [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/azure/azure-original.svg) Azure](https://jobicy.com/talent?tool=azure.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/redis/redis-original.svg) Redis](https://jobicy.com/talent?tool=redis.md) ### Data Stores [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/mongodb/mongodb-original.svg) MongoDB](https://jobicy.com/talent?tool=mongodb.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/postgresql/postgresql-original.svg) PostgreSQL](https://jobicy.com/talent?tool=postgresql.md) ### Development [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/docker/docker-original.svg) Docker](https://jobicy.com/talent?tool=docker.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/kubernetes/kubernetes-original.svg) Kubernetes](https://jobicy.com/talent?tool=kubernetes.md) ### Languages & Frameworks [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/fastapi/fastapi-original.svg) FastAPI](https://jobicy.com/talent?tool=fastapi.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/react/react-original.svg) React](https://jobicy.com/talent?tool=react.md) ## Experience Career history ### Senior AI Engineer | LLM Products & Agentic Workflows · Patients Know Best Nov 2022 – Jan 2026Designed and delivered production AI features integrating LLM APIs, retrieval workflows, and structured generation capabilities into healthcare applications serving 1M+ patient records. Built backend services using Python and TypeScript to orchestrate AI workflows, manage context, validate outputs, and connect LLM capabilities with existing business systems. Developed RAG-based knowledge workflows using embeddings and semantic retrieval. Implemented AI quality monitoring, validation workflows, and feedback loops reducing inconsistent AI responses by 30%. Collaborated with product and engineering teams to ship AI features from prototype through production release. ### AI Engineer | LLM Applications & Automation Platforms · BotCore.AI Oct 2019 – Aug 2022Built and maintained production AI applications using Node.js, TypeScript, Python, and LLM APIs supporting 20+ automated business workflows. Designed agentic workflows using tool integrations, structured outputs, context injection, and multi-step reasoning patterns for intelligent task execution. Developed RAG pipelines combining document ingestion, embeddings, vector retrieval, and LLM generation across 100K+ knowledge records. Created prompt optimization and evaluation processes to improve response consistency, reducing hallucination-related failures by 35%. Integrated AI services with internal APIs, databases, and automation platforms. ### Full Stack Engineer | Backend Systems & Product Applications · Kaiku Health Jan 2016 – May 2019Developed scalable backend services and user-facing applications using JavaScript, Node.js, SQL, and REST APIs. Built integrations between healthcare platforms and external systems through 30+ production API connections. Optimized database queries and backend workflows improving application performance by 25%. Implemented testing, deployment, and monitoring practices supporting reliable production releases. Collaborated with cross-functional teams to translate business requirements into maintainable software solutions. ## Education Learning history ### Nanyang Technological University Aug 2010 – May 2014Bachelor of Engineering, Computer Science This professional hasn’t added portfolio projects yet. This professional hasn’t listed any services yet.