Роман

ROMAN MARTSENIUK Full Stack Developer
2+ years experience

[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | Vinnystsia, Ukraine
LinkedIn | GitHub | Telegram

SUMMARY
I'm a Full Stack Developer specializing in React and TypeScript and Node.js, with 2+ years of commercial
experience. I've worked both independently and as part of a team on projects ranging from building
applications from scratch to improving and modernizing existing systems.
I am focused on writing clean, maintainable code, solving real-world business challenges, and continuously
advancing my technical skills through complex end-to-end projects.

WORK EXPERIENCE

Full Stack Developer Apr 2026 - Sep 2026
NDA, Remote
Engineered and deployed from scratch an internal B2B manufacturing defect management
system (React, NestJS, PostgreSQL).
Designed the database architecture and implemented Role-Based Access Control (RBAC:
Admin, Manager, Executor) with secure JWT authentication. Developed the frontend
application using React, TypeScript, and TailwindCSS, optimizing server state management
with React Query.

Web Developer Oct 2025 - Mar 2026
Kiborg, Vinnytsia
Designed and developed a full-stack pricing platform from scratch. Built an automated data
synchronization pipeline that aggregated product information from multiple XML feeds into a
centralized database. Replaced a legacy manually maintained HTML solution and built a shared
backend API powering three client applications.
Developed promotional landing pages and implemented pages for the main e-commerce
website

Freelance Web Developer Jun 2024 - Sep 2025
Self-Employed, Remote
Designed, developed, and maintained responsive, SEO-friendly landing pages and multi-page
websites using HTML, SCSS, JavaScript, and React.
Successfully migrated legacy static HTML/CSS markups into dynamic React components,
ensuring proper modularity, styling improvements, and layout fixes.
Built lightweight custom CRUD backend services using Node.js and Express, integrating third-
party REST APIs to handle client data processing and dynamic content rendering.

EDUCATION

Bachelor of Computer Engeneering Sep 2023 - Jun 2027
Vinnytsia National Technical University

KEY SKILLS

JavaScript, TypeScript Node.js, Express, Nest.js Git, Webpack, Vite,
React, Redux, React Query Prisma, PostgreSQL, Prettier, ESlint
Next.js, REST APIs SQLite Waterfall, Agile concepts
JWT, RBAC Tailwind CSS, Shadcn/ui (Scrum, Kanban)