Yaroslav

Yaroslav Kubrak
Junior Node.js Backend Developer
Wrocław, Poland | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)
github.com/kubrak-j | [open contact info](look above in the "contact info" section)

PROFILE
Self-taught backend developer focused on Node.js and TypeScript. Built and deployed two backend projects from scratch (REST APIs, PostgreSQL, Prisma ORM, JWT authentication, Docker), including a live production deployment on Render with a Neon PostgreSQL database. Currently migrating a project from Express to NestJS to deepen architecture and testing skills. Comfortable working independently, reading documentation, and debugging without hand-holding — looking for a first junior role to grow within a team.
SKILLS
• Languages: JavaScript, TypeScript
• Backend: Node.js, Express, NestJS (in progress)
• Database: PostgreSQL, Prisma ORM
• Auth & validation: JWT, role-based access control, Zod
• Tools: Git, GitHub, Docker, VS Code, Linux (WSL / Arch)
• Deployment: Render, Neon (PostgreSQL)
PROJECTS
Cinema Booking API — github.com/kubrak-j/cinema-booking-api
• REST API for a movie theatre booking platform: movies, sessions, halls, seats, users, and bookings.
• Relational schema with 6 related tables in PostgreSQL, enums, composite unique constraints, and cascade/restrict delete rules.
• JWT authentication with USER/ADMIN roles and role-based route guards.
• Deployed live: backend on Render, database on Neon (PostgreSQL).
• Currently migrating from Express to NestJS module by module, on a dedicated git branch.
Task Manager API — github.com/kubrak-j/task-manager-api
• CRUD REST API for managing tasks, built with Express and Prisma.
• Request validation with Zod, structured error handling, async/await throughout.
• Containerised with Docker.
LANGUAGES
• Ukrainian — native
• Russian — native
• Polish — B2
• English — A2