Маркіян
Back end програміст
- Considering positions:
- Back end програміст, Node.js-розробник, Backend розробник, Full stack програміст, Python-програміст
- Age:
- 19 years
- City:
- Lviv
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B A C K E N D D E V E L O P E R
[
PROFILE
[
Backend Developer with 1.5+ years of commercial experience
Lviv, Ukraine developing and maintaining server-side applications and
RESTful
https://t.me/ImJustM4rk APIs. Experienced in transaction logic, relational database
optimization, and multi-channel integration. Focused on writing
clean, testable code and delivering reliable backend solutions
in team environments.
SKILLS
Backend: Node.js, Python, Java EXPERIENCE
Frontend: JavaScript,
BACKEND DEVELOPER
TypeScript, Angular
Databases: PostgreSQL, MySQL VISA
Build & Deploy: Docker, Maven, 2024 - 2026
Git Developed RESTful API endpoints for ticket booking, reservation
Architecture: RESTful APIs & management, and schedule lookup using Node.js (TypeScript),
Transactions following internal API contracts and project conventions
Implemented payment and refund transaction logic using
Infrastructure: System Admin &
Corezoid Process Engine, maintaining data consistency across
Networking booking state transitions in PostgreSQL
English - B2 Contributed to multi-channel integration with Telegram Bot API,
Viber, Facebook Messenger, and Apple Messages for Business,
EDUCATION handling platform-specific request and response formats
Optimized PostgreSQL queries on booking and schedule
ASSOCIATE DEGREE IN endpoints by identifying missing indexes and restructuring
COMPUTER SCIENCE inefficient query patterns on high-read paths
Technological College of Lviv Maintained and extended Corezoid state machine workflows
Polytechnic National University managing booking lifecycle events, including automated
2022 - 2026 notification triggers on status changes
Containerized backend services using Docker and maintained
deployments on Linux environments, adhering to established Git
branching and release workflows
Wrote unit and integration tests for booking and payment flows
and participated in peer code reviews to maintain code quality
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The candidate's resume is posted at https://www.work.ua/resumes/19167171/