Dmitry Kozhevnikov

• Built churn-detection maps frontend → retained 650+ customers, improved targeting. • Designed network accounting frontend used in 3 countries. • Optimized map markers collection: 12s → 1.3s (10x speedup). • Translated project into English → enabled international market reach. • Redesigned legacy project → cut system load by 23% and support calls by 27%, accelerated feature integration and debugging. • Revived a stalled switch auto-configuration project → saved field and network engineer’s time.

• My own solo-built and designed SaaS product → 170+ users, 42k job applications, Status: Closed. • Automated job seeking: auto-apply, AI CV enhancement, AI cover letters. • Fullstack development (The bot itself) + marketing (Landing page, Target ads, YouTube, TikTok, LinkedIn, Telegram). Tech: AI, Next.js 15, TypeScript, Ant Design, PostgreSQL, Prisma ORM, VPS, Nginx, pm2, Y-metrika, TG Mini App.

• Met strict deadlines → enabled migration of 30% of employees to new task tracker early. • Reduced UI crash rate 32% → 4%; improved status visibility to reduce user hang-ups. • Onboarded 2 juniors → cut onboarding time from 3 → 1.5 months. • Built reusable UI library for 7 projects; replaced 3rd-party libs with internal solutions. Tech: TypeScript, React, Ant Design, Tanstack Query, React Router, Effector, CSS modules, Jest, i18n, Jenkins, Webpack, Linux, Jira, Confluence, Sber UIKit.

• Created an MVP of a car marketplace with flexible calculation of credit offers based on multiple factors • Finalist: 4th place in "Open API" section; highest technical score overall. • Loan widget integrated into Sovcombank’s service. Tech: TypeScript, React, Ant Design, SCSS, Tanstack Query, React Router, Linux.

Made several custom business solutions. • Developed a B2B Telegram bot for beer supplier promotion. • Built React web app for roofing business (maps, email/quiz forms) → Lighthouse: P-97, A-90, BP-78, SEO-100. • Maintained legacy JS/jQuery service. Tech: React, JavaScript, Node.js, SCSS, JQuery, HTML, Telegraf, framer-motion, React hook form, Y-metrika.