Любомир

Liubomyr Yarych [открыть контакты](см. выше в блоке «контактная информация»)
Full Stack Developer [открыть контакты](см. выше в блоке «контактная информация»)
github.com/yarychok

About me
Full-stack developer building and maintaining web applications for Web3
infrastructure. Developed tools used by blockchain community members,
validators, and node operators across both frontend and backend systems.

Skills
●​ Frontend: TypeScript, React, Next.js, Zustand, Tailwind CSS, Radix UI
●​ Backend: Node.js, Express, WebSockets
●​ Databases: PostgreSQL, Prisma
●​ Tooling: Git, GitHub Actions, CI/CD, Vercel

Work Experience
Full Stack Developer, Contract
deNodes, Feb 2025 - Mar 2026

●​ Built data-heavy web applications for blockchain analytics, monitoring, and
internal operations.
●​ Developed backend services and APIs for blockchain data aggregation,
processing, and delivery across internal and user-facing products.
●​ Implemented real-time features using WebSockets and event-driven updates,
improving the responsiveness of monitoring views and live data flows.
●​ Integrated third-party services, external APIs, and authentication workflows.
●​ Contributed across the full stack, from frontend interfaces to backend
services, database access, and deployment-ready product features.
●​ Contributed to automated testing for critical user flows and UI behavior
using Vitest, React Testing Library, and Playwright.

Tech stack: Next.js (App Router), Node.js, Express, PostgreSQL, Prisma, WebSockets,
Redis, Tailwind CSS, Radix UI, Zustand, Vitest, React Testing Library, Playwright.

Junior Full Stack Developer, Contract
deNodes, Jan 2024 - Feb 2025

●​ Contributed to internal web applications built with React and Next.js,
delivering features across both frontend and backend layers.
●​ Developed and maintained API endpoints, data integrations, and supporting
backend logic for internal products.
●​ Built responsive UI components and application screens with Tailwind CSS
and Radix UI.
●​ Supported ongoing improvements to application performance, reliability, and
deployment workflows.
●​ Collaborated on release and CI/CD processes for internal systems.

Tech stack: React, Next.js (App Router), Node.js, Express, MongoDB, Mongoose,
Tailwind CSS, Radix UI.
IT Service Desk Technician, Full-time
EPAM Systems, November 2021 - February 2025

●​ Provided L1 and L2 technical support for software, hardware, account, and
network issues. Acted as Shift Lead, prioritizing incidents and coordinating
daily operations.
●​ Contributed to knowledge base improvements and internal training
initiatives.
●​ Participated as an ITSM and ITIL assessment expert, and contributed as a
Python mentor for the EPAM Kids learning program.

Tools: Jira, Confluence, Active Directory, Intune, Azure, Amazon Workspaces,
Puppet.

Hosting Customer Support Specialist, Full-time
Namecheap, June 2021 - September 2021

●​ Provided technical support for hosting and domain services, assisting with
configuration and troubleshooting via cPanel, phpMyAdmin, and Linux tools.

Tools: VM, PuTTY, phpMyAdmin, Hosting Control Panel, Confluence.

Education
●​ Lviv Higher Professional School of Information and Computer Technologies
September 2023 - March 2024
●​ Danylo Halytsky Lviv National Medical University
Incomplete Master’s Degree in Medicine, 2016-2021

Languages
●​ Ukrainian: Native
●​ English: Professional Working Proficiency (B2)