Open to opportunities

Yar User

@yaruser

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Full-Stack Engineer specializing in TypeScript, scalable web and mobile products, and AI integrations.

Germany

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What I'm looking for

I seek a role where I can lead feature ownership, work on scalable web/mobile products with AI integrations, mentor engineers, and drive performance and cost optimizations.

I am a Full-Stack Engineer with two years of hands-on experience building scalable web and mobile products using TypeScript across the full stack, including React, React Native, Next.js, Nest.js and AWS. I have delivered 5+ commercial applications reaching 100k+ users and have driven measurable performance and cost improvements.

In recent roles I have led small engineering teams, owned features end-to-end, and acted as tech lead on AI and voice-enabled platforms integrating OpenAI and AWS services. I architect systems for reliability and scalability, built a headless video rendering engine, and delivered optimizations that improved core web vitals and reduced hosting costs.

I prioritize engineering enablement—introducing CI/CD, linting standards, reusable templates, and mentoring junior engineers—to increase team efficiency and deliver customer-facing value quickly and reliably.

Experience

Work history, roles, and key accomplishments

Current

Full-Stack Engineer

Current

Kevych Solutions

Feb 2024 - Present (2 years 4 months)

Led development of multiple commercial web and mobile products using TypeScript, scaling a multi-platform ecosystem to 70,000+ users and delivering a subscription platform that handled 2,000+ users with 700+ paid subscriptions in 6 hours while reducing hosting costs and improving core web vitals.