Дмитро

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DMYTRO KOLESNIKOV [open contact info](look above in the "contact info" section)

REACT FRONTEND DEVELOPER Telegram
1 YEAR COMMERCIAL EXPERIENCE | FINTECH | TYPESCRIPT
GitHub
S UMMARY LinkedIn

React Frontend Developer with 1 year of commercial experience EDUCAT I ON
building production FinTech applications using React and
TypeScript. Quickly progressed to taking ownership of key frontend Professional College of Information
initiatives, including the company's POS payment solution, while Systems and Technologies of Vadym
delivering reliable payment workflows, solving production issues, and Hetman KNEU
collaborating across cross-functional teams. Professional Junior Bachelor’s
Degree in Software Engineering

WORK EXPERI ENCE MATE ACADEMY
Frontend Developer
FRONTEND DEVELOPER | RockPay
S KI L L S
AUG 2025 – JULY 2026
Frontend
Developed and maintained production banking payment terminal
software using React and TypeScript. React • Next.js
Took ownership of the company's POS payment solution within TypeScript • JavaScript
the first six months, leading frontend implementation of new HTML5 • CSS3 • SCSS • Tailwind CSS
features and payment workflows.
State Management
Implemented complex business logic covering multiple payment
Redux Toolkit
scenarios and edge cases.
Investigated and resolved production issues by analyzing Zustand
application logs and identifying root causes. TanStack Query
Collaborated with QA engineers, backend developers, and business Backend
analysts throughout the development lifecycle.
Node.js • Express • NestJS
Mentored new developers on coding standards and development
Databases
best practices.
Improved the development-to-testing workflow and coordinated MySQL • PostgreSQL • SQLite
development activities during the Team Lead's absence. Tools
Git • Terminal
PORT F OL I O ChatGPT • Claude • Cursor
English: Intermediate+
CAR AUCTION
Built a full-stack auction platform using React, TypeScript, Node.js and MySQL.
Implemented authentication and role-based admin panel.
Developed a real-time auction system with timers and automatic bid updates.
Designed filtering, search, multilingual support, and responsive UI.
Integrated MySQL database for users, cars, auctions, and images.
GitHub
PHONE CATALOG
Developed an e-commerce application as part of a team project.
Collaborated using Git and Agile workflow.
Built catalog pages with sorting, pagination, and debounced search.
Developed header, footer, and static pages.
Integrated REST API.
DEMO
GitHub