Roman

ROMAN LAVRENCHUK
Full Stack Developer
[відкрити контакти](див. вище в блоці «контактна інформація») • (813)-796-1926
github.com/romanlavrenchuk • [відкрити контакти](див. вище в блоці «контактна інформація»)

SUMMARY
Full Stack Developer with hands-on experience building production-ready web applications from scratch using React, Next.js, TypeScript,
Node.js/Express and PostgreSQL. Developed and deployed three projects including TaskFlow — a full-stack Kanban task manager with
JWT auth, httpOnly cookies, drag-and-drop, and REST API. Strong attention to code quality, clean architecture and modern JavaScript
ecosystem. Looking for a full-stack developer role to grow within a strong engineering team.

TECHNICAL SKILLS
Frontend React, Next.js (App Router), TypeScript, JavaScript (ES6+), TanStack Query, Tailwind CSS, Shadcn/ui

Backend Node.js, Express, REST API, Zod validation, Stripe (Checkout, Webhooks), SendGrid

Database / ORM PostgreSQL, MySQL, Prisma (schema, migrations), pgAdmin

Auth & Security JWT, bcrypt, NextAuth, httpOnly cookies, RBAC, input validation

DevOps Docker, Docker Compose, Vercel, Railway, GitHub Actions, CI/CD, Git/GitHub

Testing Postman, Insomnia, REST API testing

Tools Agile/Scrum, Jira, VS Code, dnd-kit

EXPERIENCE
Full Stack Developer | Freelance • Remote
November 2024 — Present
• Built and deployed TaskFlow — a full-stack Kanban task manager with drag-and-drop (dnd-kit), JWT auth with httpOnly cookies,
CRUD operations, deployed on Railway + Vercel
• Built RmtDev — a remote job search platform using React, TypeScript, TanStack Query and external API integration
• Building PetSoft — a full-stack SaaS pet care app with Next.js 14 Server Actions, NextAuth, Stripe and Prisma/PostgreSQL
• Designed REST APIs with Zod validation, consistent error handling and Insomnia testing
• Dockerized local development with Docker Compose; deployed frontend to Vercel and backend to Railway
• Managed codebase with Git/GitHub including branching, commits and pull requests

PROJECTS
TaskFlow — Full Stack Kanban Task Manager | task-manager-app-wine-seven.vercel.app
April 2026 (completed) • Next.js • TypeScript • Express • Node.js • PostgreSQL • Prisma • JWT • TanStack Query • dnd-kit • Tailwind CSS • Docker
• Full-stack task management app with separate Next.js frontend and Express backend folders
• JWT authentication stored in httpOnly cookies with bcrypt password hashing for security
• Drag-and-drop Kanban board with smooth animations using dnd-kit and DragOverlay
• TanStack Query for data fetching, caching and automatic cache invalidation after mutations
• Zod validation on both frontend and backend; service/repository architecture pattern
• Prisma ORM with PostgreSQL; deployed frontend to Vercel and backend to Railway

PetSoft — Pet Care SaaS App | pet-soft-psi.vercel.app | github.com/RomanLavrenchuk/PetSoft
May 2025 (in progress) • Next.js 14 • TypeScript • Prisma • PostgreSQL • NextAuth • Stripe • Zod • Shadcn/ui
• Full-stack SaaS app with Next.js App Router and Server Actions; full CRUD with optimistic UI updates
• Authentication with NextAuth; Stripe payments for access subscription
• Zod-validated forms with react-hook-form; styled with Shadcn/ui component library

RmtDev — Remote Job Search Platform | github.com/RomanLavrenchuk/RmtDev
December 2024 (completed) • React 18 • TypeScript • TanStack Query • Radix UI • Vite
 • Job search platform with real-time data fetching from external API, bookmarks and pagination
• TanStack Query for server state management, caching and background refetching
• TypeScript throughout; bundled with Vite for fast development and optimized production build

EDUCATION & TRAINING
Bachelor's Degree in Information Technology | Lviv College of UAD • Lviv, Ukraine • May 2016
Completed Courses (Udemy): JavaScript (ES6+), TypeScript, React & Next.js, Node.js & Express, Prisma & PostgreSQL, Git, GitHub &
Docker

LANGUAGES
Ukrainian — Native • English — Professional (B2/C1) • Polish — Conversational