Andrey Zakharov

Senior Full-Stack Engineer

GPTunneL.ai

Oct 2025 - Current (1 year 1 month)

Senior full-stack engineer on a fast-moving AI product, owning features end to end across a TypeScript/React/Next.js frontend and a Node.js + PostgreSQL backend. I work at the seam where frontier-model output meets reliable product UX, and I brought engineering rigor (testing, CI/CD, observability) to the product from the ground up. Highlights:
• Built a unified API that abstracts multiple AI providers (LLMs, image generation, image editing) behind one interface, so product features integrate AI without per-vendor glue or lock-in.
• Shipped an AI-powered browser video editor that composes video, image, and LLM generations into a single end-to-end workflow (Next.js, auth, backend integration).
• Designed an LLM context-trimmin

Engineering Manager

Rarible

Jun 2022 - Jun 2025 (3 years 1 month)

- Managed the RaribleX team, building a white-label NFT platform with CC checkout and resale support. - Launched 50+ custom marketplaces for brands like Mattel, McFarlane, and Lamborghini. - Coordinated blockchain integrations with external teams, supporting 14 chains including Berachain and Eclipse. - Led cross-functional teams on Rarible.com, delivering marketplace features and improving stability. - Hired 6 frontend engineers by driving the full recruiting and onboarding process. - Mentored and promoted a tech lead and a senior engineer, enabling their career growth.

Engineering Lead

Seven Senders

Jul 2017 - Mar 2022 (4 years 9 months)

Building the leading delivery platform to ship parcels in Europe. Serving clients such as ASOS, Miele, EMP, Best Secret, ShopApotheke, Lillydoo, Flaconi, Nu3, and Foodspring to grow their cross-border business. Achievements: - Introduced modern frontend technologies and best practices (React ecosystem, component-driven development, testing frameworks), establishing the foundation for scalable product delivery. - Architected and built a new frontend for the B2B SaaS platform from scratch with React. - Led the transformation of the frontend sub-team into an independent full-stack function, reducing dependency on the backend team and streamlining delivery. - Managed and scaled 3 product-aligned squads for multiple logistics SaaS products. - De

Full-stack Developer

OneTwoTrip

Dec 2016 - Jul 2017 (8 months)

- Rebuilt hotel booking landing pages with React and a new design system for improved SEO and UX. - Implemented server-side rendering (SSR) to enhance page load speed and crawlability. - Developed Python workers to generate and deploy static SEO-optimized landing pages at scale.

Full-stack Developer

Octoberry

Apr 2014 - Dec 2016 (2 years 9 months)

Magneta: customer chat support - Developed embeddable customer chat widget in React for third-party websites. - Built internal dashboard in React to streamline chat support workflows. - Maintained backend on Python + MongoDB with WebSocket and RabbitMQ for real-time messaging. Noname Bank: mobile-only bank for SMBs (currently modulbank.ru) - Developed backend on Python + MongoDB for mobile app Clickme: targeted advertising system (clickme.hh.ru) - Maintained and extended web dashboard on Python + PostgreSQL

S

Senior Developer

Sep 2013 - Apr 2014 (8 months)

Senior Developer

ARMADA OAO

Dec 2012 - Jul 2013 (8 months)

Cyprus R&D department

Senior Developer

MAMBA

Mar 2012 - Nov 2012 (9 months)

Senior Developer

Badoo

Dec 2011 - Mar 2012 (4 months)

Feature Team

Senior Developer

Megaplan

Nov 2009 - Dec 2011 (2 years 2 months)

Developing SaaS application (Task Manager, CRM)

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Andrey Zakharov

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