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Full Stack Developer with 5+ years of professional experience owning end-to-end delivery of production SaaS platforms serving 400K+ users. Core stack: React/Next.js, Node.js, Python/Django, PostgreSQL. Proven track record reducing infrastructure costs, scaling systems under high traffic, and shipping AI-powered features for global audiences. Experienced as a technical owner and lead contributor across remote-first teams of 10–60+ engineers. Available for US business hours.…Full Stack Developer with 5+ years of professional experience owning end-to-end delivery of production SaaS platforms serving 400K+ users. Core stack: React/Next.js, Node.js, Python/Django, PostgreSQL. Proven track record reducing infrastructure costs, scaling systems under high traffic, and shipping AI-powered features for global audiences. Experienced as a technical owner and lead contributor across remote-first teams of 10–60+ engineers. Available for US business hours.

Sergey Kharyatyan

Full Stack Developer, Front-End Developer, Back-End Developer, +2

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Full Stack Developer with 5+ years of professional experience owning end-to-end delivery of production SaaS platforms serving 400K+ users. Core stack: React/Next.js, Node.js, Python/Django, PostgreSQL. Proven track record reducing infrastructure costs, scaling systems under high traffic, and shipping AI-powered features for global audiences. Experienced as a technical owner and lead contributor across remote-first teams of 10–60+ engineers. Available for US business hours.…Full Stack Developer with 5+ years of professional experience owning end-to-end delivery of production SaaS platforms serving 400K+ users. Core stack: React/Next.js, Node.js, Python/Django, PostgreSQL. Proven track record reducing infrastructure costs, scaling systems under high traffic, and shipping AI-powered features for global audiences. Experienced as a technical owner and lead contributor across remote-first teams of 10–60+ engineers. Available for US business hours.

Available to hire

Full Stack Developer with 5+ years of professional experience owning end-to-end delivery of production SaaS platforms
serving 400K+ users. Core stack: React/Next.js, Node.js, Python/Django, PostgreSQL. Proven track record reducing
infrastructure costs, scaling systems under high traffic, and shipping AI-powered features for global audiences. Experienced
as a technical owner and lead contributor across remote-first teams of 10–60+ engineers. Available for US business hours.

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Work Experience

Full Stack Developer at Desygner

January 1, 2024 - March 1, 2026

Led backend architecture for a 50+ engineering team; delivered AI-powered features (text-to-image, background removal, template rendering) for millions of users. Reduced AI service costs ~30% via request batching, Redis caching, and LLM prompt optimization. Refactored 12 core Django ORM queries; improved API performance by 40%. Built and maintained versioned REST APIs with Django REST Framework; automated zero-downtime deployments via GitHub Actions CI/CD.

Full Stack Developer at Budlight

June 1, 2023 - December 1, 2023

Acted as technical owner for frontend delivery on a platform with 100,000+ users; built fast, responsive UI with Next.js 13 App Router, React, Redux, Tailwind CSS; achieved Lighthouse score 90+. Led Supabase integration with Prisma ORM; reduced p95 query times by 35%. Architected Vercel blob storage integration and deployment pipeline enabling high-availability global delivery with sub-100ms TTFB for static assets.

Full Stack Developer at Wild Learner

March 1, 2021 - May 1, 2023

Owned end-to-end engineering as the primary tech owner for a ~10-person remote team; scaled an e-learning platform to 400,000+ registered users. Architected SSR/SSG with Next.js to reduce Time-to-First-Byte by 60% and improve organic search rankings.

Frontend Lead at LS Innovation

June 1, 2018 - August 1, 2020

Delivered React and Next.js frontends across 8+ client projects; managed complex state with Redux Thunk and Redux Saga. Integrated REST APIs and GraphQL data layers, reducing over-fetching and aligning with backend teams.

Feature Owner at Constapps

September 1, 2020 - February 1, 2021

Led frontend delivery on a ~20-person team; built cross-platform MVP in web (React) and mobile (React Native with Expo), delivered iOS and Android launch on schedule; achieved 1,000+ downloads in first month.