Яна

HRABAR YANA
Golang Backend Developer

Backend developer with 4 years of hands-on experience — from a trainee start in
2022 to owning services end-to-end. My core work is server-side: Go (Fiber, GORM),
PostgreSQL, Redis and Docker, designing REST APIs and wiring them into React admin
panels. I also work across Node.js/NestJS and React, so I own both sides of the API
contract and design endpoints knowing exactly how the front end will consume them.
I pick up inherited codebases, run code reviews, mentor junior developers and
[open contact info](look above in the "contact info" section) communicate directly with clients.
[open contact info](look above in the "contact info" section)
Uzhhorod, Zakarpattia, Ukraine WORK EXPERIENCE
github.com/brahayarn
Coderfy — Backend / Full-Stack Developer
Sep 2025 – Jun 2026 · Remote
EDUCATION ● Owned production services end-to-end — PostgreSQL schema design, REST
API design and implementation, and the clients consuming them, with no
Uzhhorod National University
hand-offs.
Faculty of IT — Bachelor's,
● Built backend services with Redis for caching, sessions and background job
Software Engineering (121) queues; optimised SQL queries and indexes on hot endpoints.
2023 – 2027 ● Ran the delivery pipeline: Docker containers, CI/CD on GitHub Actions,
deployment to Linux servers, error tracking with Sentry.
● Integrated backend APIs with a React admin panel — designed the JSON
CORE STACK contracts, documented them in Swagger and implemented both sides.
OmnityCode — Full-Stack Developer (grew Trainee → Senior)
Go · Fiber
Jan 2022 – Sep 2025
GORM · SQL · migrations
● Progressed Trainee → Junior → Strong Junior → Middle → Senior, taking on
PostgreSQL · Redis full ownership: backend APIs, data layers and the web clients on the same
REST API · JSON · Swagger projects.
Docker · Linux · Git ● Wrote backend services and data layers, designed REST APIs and integrated
React · Next.js (admin panels) them with React/Next.js admin panels; owned the release pipeline end-to-
end, from build to production deploy.
ALSO WORKED WITH ● Led development on cross-platform projects (architecture, stack, full
lifecycle), ran code reviews, and mentored junior developers — guiding
Node.js · NestJS · TypeScript them through tasks and standards.
React Native · Expo ● Regularly picked up inherited codebases — analysed them, refactored and
took over long-term support, including a full TypeScript migration of a
Python · Flutter legacy project.
Supabase (RLS) · Firebase
BullMQ · TanStack Query STRENGTHS & LEADERSHIP
● Backend focus with full-stack reach — Go and Node on the server, React on
DEVOPS & DELIVERY the client. I design endpoints knowing how the front end consumes them,
which cuts contract negotiation to a single iteration.
Docker · GitHub Actions · CI/CD
● People & delivery — I bring in and coordinate developers, mentor juniors,
Linux server deployment run code reviews, and speak directly with clients, explaining architecture
Swagger / OpenAPI · Postman clearly to technical and non-technical audiences.
Sentry · Husky / lint-staged ● Working with existing code — I take over inherited services, analyse and
refactor them, and keep them running; comfortable with AI-assisted
LEADERSHIP workflows and self-directed on unfamiliar stacks.

Team coordination · Hiring
Mentoring · Code reviews
Architecture ownership
Client communication

LANGUAGES
Ukrainian — native
English — Upper-Intermediate
Czech — B1–B2