Дмитро

Dmytro Chumak
Full-Stack Engineer | React / Node.js
Ivano-Frankivsk, Ukraine • [open contact info](look above in the "contact info" section) • [open contact info](look above in the "contact info" section) • LinkedIn • GitHub

PROFILE

Full-Stack Developer with 3+ years of commercial experience building CRM modules, business logic, REST APIs,
integrations and responsive interfaces. Commercial stack: PHP, JavaScript, MySQL and SuiteCRM. Also building
React/Next.js and Node.js/NestJS products with TypeScript, SQL and automated tests. Focused on end-to-end
development, useful products and workflow automation.

WORK EXPERIENCE

Jul 2023 – Present Full Stack Developer, CRM Studio
• Built and customized SuiteCRM modules across PHP/SQL backends, JavaScript interfaces,
business rules, data relationships and REST API integrations.
• Designed a GPS-based field-visit verification solution with configurable location tolerance,
browser fallback, route maps and diagnostics for unsuccessful check-ins.
• Initiated and contributed to a CRM interface redesign, improving UI consistency, responsive
forms and workflows; supported testing and client demonstrations.
• Worked on an LLM/MCP integration for CRM with role-based tool permissions, user limits,
session/token handling and JSON Schema output validation.
• Integrated external services including Google Maps; investigated requirements, reviewed code,
documented solutions and supported releases and deployments.

EDUCATION

2020 – Jun 2024 B.Sc. Computer Engineering, Chernihiv Polytechnic National University
• Graduated with Honours; Computer Systems of Artificial Intelligence programme.

SKILLS

Frontend JavaScript • TypeScript • React • Next.js • HTML • CSS/SCSS • Tailwind CSS • Responsive UI
(Personal / Work)

Backend & Data Node.js • NestJS • PHP • SuiteCRM • MySQL • TypeORM • REST APIs • WebSocket
(Personal / Work)

Tools & Testing Git • Docker • Linux/WSL • Jest • Supertest • Playwright • MCP

FULL-STACK PROJECTS

2026 – Present Koshta – Personal Finance Web App
Next.js, React, NestJS, TypeScript, MySQL, TypeORM, Docker; personal project.
• Designed a modular monorepo with Next.js web/BFF, NestJS API and shared TypeScript
packages; developed transaction and account features, and worked on budget and payment
workflows.
• Built reusable responsive UI and automated tests with Jest, Supertest and Playwright; manage
technical requirements, architecture decisions and AI-assisted code reviews.

2026 – Present Dev Control – AI-Assisted Development Toolkit
Node.js, TypeScript, MCP, Git, OverlayFS; personal engineering project.
• Developed an MCP-based toolkit with controlled file/terminal access, allowed commands, Git
worktrees, isolated workspaces and task-tracker integrations.
• Designed task dashboard workflows, permission policies and review steps for proposed
AI-generated changes.

ADDITIONAL ENGINEERING PROJECTS

2024 Multiplayer Monopoly
Angular, Node.js, WebSocket; university graduation project.
• Built real-time multiplayer gameplay with synchronized board state, turns, dice rolls, property
transactions and player updates.

2025 React To-Do Application
React, Next.js, Context API; personal project.
• Created a task management application with search, category filters, due dates and reusable
React components.

Earlier Real-Time Multiplayer Game (Agar.io-style)
Node.js, WebSocket; personal project.
• Implemented real-time player movement, growth, session handling and client synchronization.

LANGUAGES

Ukrainian Native speaker English A2