
Vladislav Vitovtsev
@vladislavvitovtsev
AI engineer building production agentic systems and RAG; cut model context from 43 KB to 5 KB per query.
What I'm looking for
I built a production RAG service with hybrid search that cut context sent to the model from 43 KB to 5 KB per query, with recall@5 of 1.00 across 45 control questions. When search fails, it falls back to the full knowledge base so visitors never see the failure.
At a video communication product, I grew a demo into a production web client with WebRTC calls, recording, chat, and screen sharing. I also shipped an Electron client and CI/CD for macOS and Windows, and set up agentic code review that caught real defects before merge.
Through my independent practice, I build products and AI integrations for clients. Recent work includes an AI content analysis service, a standalone rental product that now brings the client bookings, and a psychotherapy platform feature delivered using my agentic process.
At App In The Air, I built the web product from scratch and later led a frontend team of five as the product expanded to corporate travel. I bring 13 years of fullstack development across Node.js, Python, and React, and take products from idea through production.
Experience
Work history, roles, and key accomplishments
Sole Frontend Developer
Product IT Company
Sep 2025 - Present (1 year 1 month)
Grew a demo prototype into a production web client with WebRTC calls, calendar, chat, and notifications. Shipped an Electron desktop client and set up an agentic development pipeline.
Lead Developer / AI Engineer
Independent Practice
Mar 2024 - Present (2 years 7 months)
Consulting as CTO, sole developer, and team developer on multiple client projects, including AI integration and product development from scratch.
Frontend Developer to Team Lead
App In The Air
Nov 2019 - Oct 2024 (4 years 11 months)
Built the web product from scratch, assembled and led a frontend team of five, and took the product to a corporate B2B portal.
Fullstack Developer
Webrise
Aug 2016 - Nov 2019 (3 years 3 months)
Redesigned the Sberbank Insurance site and built insurance calculators, a national contest platform, and an online store with React Native apps.
Fullstack Developer
Zaymer
Apr 2014 - Aug 2016 (2 years 4 months)
Fully automated microloans to bank cards in Russia and Kazakhstan using Laravel, MySQL, PostgreSQL, MongoDB, and Selenium.
Frontend Developer
IT-Infinity
Aug 2013 - Mar 2014 (7 months)
Developed corporate websites on 1C-Bitrix.
Education
Degrees, certifications, and relevant coursework
GREEN-API
Qualification Certificate, Integrations and Chatbot Development
Qualification certificate in integrations and chatbot development on GREEN-API, completed in September 2026.
Tomsk State University of Control Systems and Radioelectronics
Bachelor's degree, Computer Engineering
Completed a degree in computer engineering in 2012.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Website
vlad.vitovtsev.sitePortfolio
vlad.vitovtsev.siteSalary expectations
Job categories
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