Vitalii Liash

Experienced in architecting and delivering production-grade systems across web, backend, and AI domains, with 6 years of software engineering experience, including 4 years specializing in AI/ML engineering focus on LLMs, NLP, semantic search, AI agents, and Retrieval-Augmented Generation (RAG).Proficient in building scalable applications using React.js, Next.js, TypeScript, React Native, and backend frameworks like Node.js, NestJS, FastAPI, and Django. Skilled in microservices, WebSocket/REST APIs, and optimizing PostgreSQL, MongoDB, and Redis pipelines for performance, and reliability. Hands-on with AWS, GCP, Docker, and CI/CD pipelines, delivering technically sound, scalable solutions with a collaborative, test driven, and results-oriented approach.