ShelfSignal
Co-founder & CTO
- Designed the architecture and built the core multi-LLM measurement pipeline (5 assistants, 500 answers per category run).
- Built the AI shopping-agent simulation with an 11-field decision schema and loss-reason taxonomy.
- Rules engine, client accounts, self-serve reports and dashboards. TypeScript, Next.js, Node.js, PostgreSQL.
Route4Me
Senior Full-Stack Developer
- Full-stack development of the web portal for a last-mile route optimization platform.
- Made the legacy portal about 2.5× faster by batching Google Maps requests.
- Built a Geotab Add-In and whitelabel portals for FleetComplete and PowerFleet.
Bright Data
Senior Full-Stack Developer
- High-load data search and storage platform with about 10M daily unique users.
- Redis caching of metrics cut database load by about 30%; MongoDB at scale.
- Full-stack development on EarnApp; code reviews and mentoring of junior developers.
TypingMaster (Helsinki, remote)
Full-Stack Developer / Team Lead
- Led a team of 4 developers and QA on Typetastic: about 4M users, 700+ courses, web, Windows, Android and iOS.
- Earlier worked on TypingMaster, TypingTest and Typerush.
- Vue.js, PHP/Laravel, MySQL, Socket.io, Node.js, HTML5.
Snapscreen Inc
Front-End Developer
- Developed real-time TV content analysis features.
- Built clip creation and video API integrations.
- Boosted interface rendering speed by 35%.
Mahatat
Back-End Developer
- Built admin tools for users, subscriptions and payments.
- Integrated Stripe, PayPal and Fortumo.
- Reduced payment processing time from 5s to 1s.
RawShorts
Front-End Developer
- Developed animated video builder features.
- Implemented overlays, multi-select and dynamic fonts.
- Improved editor performance by 50%.
Freelance & WebCraft studio
Full-Stack Developer / Tech Lead
- 75 projects for 62 clients with a 5.0 average rating, including MVPs for Seagate, L’Oréal and Siemens.
- AI work: AI Photobooth, Cultural Quest AR quests, SparkURL ML pipeline for Carnegie Mellon, Snapscreen.
- Other clients: Citroën Ami, Telly, RawShorts, Mahatat, Whitehall Training.