Full-stack developer with 5 years of commercial experience. I build and repair websites, landing pages, MVPs, admin panels, APIs and AI/RAG tools. Main stack: React, TypeScript, Python, FastAPI, Node.js, PostgreSQL and Docker. I’m good at jumping into messy codebases, fixing broken flows, integrations, parsers, dashboards and deployment issues fast.…

Polina Kolianikova

Full-stack developer with 5 years of commercial experience. I build and repair websites, landing pages, MVPs, admin panels, APIs and AI/RAG tools. Main stack: React, TypeScript, Python, FastAPI, Node.js, PostgreSQL and Docker. I’m good at jumping into messy codebases, fixing broken flows, integrations, parsers, dashboards and deployment issues fast.…

Available to hire

Full-stack developer with 5 years of commercial experience. I build and repair websites, landing pages, MVPs, admin panels, APIs and AI/RAG tools. Main stack: React, TypeScript, Python, FastAPI, Node.js, PostgreSQL and Docker. I’m good at jumping into messy codebases, fixing broken flows, integrations, parsers, dashboards and deployment issues fast.

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Work Experience

Freelance Full-Stack Developer at Freelance / BlackStack Studio
January 1, 2020 - Present
Built and repaired websites, landing pages, MVPs, admin panels and API-backed tools for small businesses and product teams. Worked across React, TypeScript, Python/FastAPI, Node.js, PostgreSQL, Docker, WordPress, API integrations and AI/RAG workflows. Typical work included bug fixing, legacy cleanup, frontend rebuilds, backend endpoints, parsers, dashboards, deployment fixes and handoff documentation.

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Industry Experience

Software & Internet

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