Senior Full-Stack TypeScript Engineer & Tech Lead
I build AI products — LLM pipelines, AI agents and computer vision — on top of 19 years of production web development with TypeScript, React, Next.js, Node.js, PostgreSQL and AWS.
Co-founder and CTO of ShelfSignal, where I designed the architecture and built the pipeline that measures how ChatGPT, Claude, Perplexity, Gemini and Grok recommend brands and which sellers their shopping agents choose. Before that: Route4Me, a 10M-daily-users data platform at Bright Data, and twelve years at TypingMaster leading Typetastic, used by about 4M students. As a freelancer: 75 projects for 62 clients with a 5.0 average rating, including MVPs for Siemens, Seagate, L’Oréal and Citroën.
Core expertise
OpenAI, Anthropic and Gemini APIs, multi-LLM evaluation pipelines, AI shopping agents, structured outputs, prompt engineering, AI-assisted development (Claude Code)
TensorFlow.js, MediaPipe, OpenCV.js, Deepgram speech recognition, PySpark, Spark MLlib, DuckDB
TypeScript, React, Next.js, Redux, Vue.js, Angular, Tailwind, SCSS, Material UI
Node.js, Express, NestJS, Python, PHP (Laravel, Symfony), REST APIs, GraphQL, Socket.io
PostgreSQL, Supabase, MongoDB, MySQL, MariaDB, Redis, Firebase, AWS (ECS, CloudWatch, SNS), Docker, CI/CD, Playwright, ElasticSearch
Team lead for frontend, backend, QA and DevOps engineers, architecture, code review, mentoring, Agile/Scrum
Selected work
Recent AI work first, then selected projects from employment and the WebCraft portfolio.
shelfsignal.proCo-founder & CTO. Multi-LLM pipeline that measures how ChatGPT, Claude, Perplexity, Gemini and Grok recommend brands, plus an AI shopping-agent simulation that records which seller gets the order.
CTO · TypeScript · Next.js · Node.js · PostgreSQL · OpenAI, Anthropic & Gemini APIs
Live events · SingaporeGenerative-AI portrait kiosk for corporate events: QR check-in, branded AI portraits with outfit and car selection, animated takeaways, automatic retry and download by QR. About 80–100 guests a day.
Next.js · PostgreSQL · Replicate · WAN 2.2 · TensorFlow.js · ffmpeg
AR quests · Seoul, Dubai, Berkeley pilotsAR quests in the mobile browser with on-device AI: object and painting recognition, pose matching and voice tasks. Video never leaves the phone.
OpenCV.js · MediaPipe · TensorFlow.js · Deepgram · Next.js · PWA
Carnegie Mellon UniversityPySpark, Spark MLlib and DuckDB classify billions of clickstream URLs into purchases and ad clicks on an HPC cluster, with a validation report on over- and under-counting.
PySpark · Spark MLlib · DuckDB · Parquet · SLURM · Python
brightdata.comHigh-load data search and storage platform with about 10M daily unique users. Redis caching of metrics cut database load by about 30%.
Full Stack · Node.js · TypeScript · React · Next.js · MongoDB · Redis
route4me.comFull-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.
Full Stack · Vue.js · React · PHP/Laravel · MySQL · Google Maps API
store.citroen.co.uk/amiComplex EU-market ecommerce application for browsing, configuring, financing and ordering electric vehicles.
React · Next.js · Node.js · Redis · MariaDB
typetastic.comTyping platform for schools in the US and Europe: about 4M users, 700+ courses, shipped on web, Windows, Android and iOS. Led a team of 4 developers and QA for twelve years.
Team Lead · Vue · PHP/Laravel · MySQL · Socket.io
earnapp.comPortal for earning money online with full-stack product development.
Node.js · React · MongoDB · Redis
whitehalltraining.comOnline healthcare startup with modern frontend and backend architecture.
React · Next.js · Node.js · MongoDB
snapodds.comReact/Next.js frontend for a real-time TV content recognition platform built on AI algorithms, with video stream API integration.
React · Redux · TypeScript · Next.js · Video APIs
swordonline.ioBrowser-based multiplayer game platform with real-time interactions.
HTML5 · JavaScript · Node.js · Socket.io
mahatat.comVideo streaming service with subscription flows, payments and analytics.
React · MongoDB · Next.js · Node.js
typerush.comTyping development game focused on fast, engaging web performance.
React · Redux · Bootstrap
rawshorts.comAnimated video builder for business marketing with editor tools, overlays and dynamic font loading.
HTML5 · JavaScript · Frontend performance
typingtest.comTyping test and learning platform with modern UI, analytics and scalable web delivery.
JavaScript · jQuery · Bootstrap · SCSS
typingmaster.comEducational typing software and web platform with HTML5 applications and backend services.
HTML5 · Node.js · CreateJS · PHP · JavaExperience
Multi-LLM evaluation pipelines with structured outputs, AI shopping-agent simulations, generative imaging for live events and on-device computer vision in the mobile browser.
ShelfSignal · AI Photobooth · Cultural QuestBackend performance, caching, API design and database scaling for products with large traffic and complex data flows, from a 10M-daily-users platform to a billions-of-URLs ML pipeline.
Bright Data · Route4Me · Citroën Ami · SparkURLTwelve years at TypingMaster leading Typetastic: course systems, school dashboards, student progress tracking and about 4M users across web, Windows, Android and iOS.
Typetastic · TypingMaster · TypingTestCTO and team lead for frontend, backend, QA and DevOps engineers: architecture, code review, mentoring and full-cycle delivery from MVPs to long-running production systems.
75 projects · 62 clients · 19 yearsServices
I help startups and product companies design, build and scale AI products and web platforms from MVP to production.
LLM pipelines with OpenAI, Anthropic and Gemini APIs, structured outputs, multi-model evaluation, AI agents and prompt engineering, from prototype to production.
On-device vision in the browser with TensorFlow.js, MediaPipe and OpenCV.js, speech with Deepgram, and data pipelines with PySpark, Spark MLlib and DuckDB.
Full-cycle development for SaaS products, dashboards, admin panels, subscriptions, analytics and integrations.
Architecture, caching, APIs and database optimization for products with large traffic and complex data flows.
Modern frontend and backend with TypeScript, React, Next.js, Node.js, NestJS, PostgreSQL, REST APIs and GraphQL.
Fractional CTO or team lead: architecture decisions, code reviews, mentoring, hiring support and delivery planning.
Technologies
Testimonials
“Vladimir is technically very competent and a great communicator. Super reliable and a pleasure to work with.”
“Always a pleasure to work with Vladimir; professional, highly communicative and always on top of things.”
“Excellent technical skills, fast, efficient and very nice to work with. Can only recommend!”
FAQ
AI products (LLM pipelines, AI agents, computer vision), SaaS platforms, high-load web applications and EdTech products. Most recent work is in TypeScript with React, Next.js, Node.js and PostgreSQL.
Yes. At ShelfSignal I designed the architecture and built the multi-LLM measurement pipeline, the shopping-agent simulation, the rules engine and the client dashboards. Freelance AI work includes generative imaging for live events, on-device computer vision in the mobile browser and an ML data pipeline for Carnegie Mellon research.
TypeScript, React, Next.js, Node.js, PostgreSQL and AWS as the core stack; OpenAI, Anthropic and Gemini APIs for LLM work; TensorFlow.js, MediaPipe, OpenCV.js and Deepgram for on-device vision and speech; PySpark, Spark MLlib and DuckDB for data pipelines.
Yes. I am Co-founder and CTO of ShelfSignal and led a team of 4 developers and QA at TypingMaster for twelve years, covering architecture, code review, mentoring and delivery planning.
Contact
I work remotely from Tbilisi, Georgia (GMT+4) and am open to senior full-stack and AI engineering roles, consulting and fractional CTO work.
Email: vladimir@vfedorov.com · Phone / WhatsApp: +995 557 70 92 71 · Tbilisi, Georgia (GMT+4)