Vasyl

Vasyl Lendiel Backend Developer
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Lviv, Ukraine github.com/v0sska

@mqqqmi

Education
09/2021 – 07/2025 Junior Bachelor in Computer Engineering
Lviv, Ukraine Lviv IT College

Languages
English - B1 Ukrainian - Native

Professional Experience
07/2024 – 01/2025 Node.js Backend Developer
Lviv, Ukraine Insiders
Development of scalable backend systems using Node.js and NestJS, including CRM
platforms with third-party API integrations such as Facebook, TikTok, Instagram,
LinkedIn, YouTube, and Twitter. Worked on real-time, geolocation-based social
networking applications with features like proximity-based user discovery and dynamic
group creation. Responsibilities included designing RESTful APIs and WebSocket
gateways, implementing authentication and role-based access control, managing data
with PostgreSQL and Prisma, containerizing services using Docker, writing automated
tests to ensure reliability, and contributing to CI/CD workflows and overall system
architecture. Developed AWS Lambda functions to extend core functionality.

10/2024 – Present Chrome Extension / Backend Developer
Remote Side Project
Development of Chrome extensions focused on productivity and security, including
tools for clipboard management and custom keyboard shortcuts using browser APIs.
Built backend services and browser integrations for a blockchain-based copyright
protection system leveraging the Polygon network. Work included designing extension
architecture with Plasmo and React, developing backend APIs with NestJS, integrating
Web3 libraries for smart contract interactions.

01/2025 – Present Node.js Backend Developer
Lviv, Ukraine OSA
Development of an internal CRM system for company operations, featuring role-based
access control, project reporting, and financial tracking tools for management.
Implemented a Telegram bot for real-time updates, user interaction, and reporting
directly from chat. Additionally, built a YouTube scraper service for retrieving and
caching music-related metadata, including artist and album information, with support
for streaming and optimized data access through caching mechanisms.

Skills

Javascript, Typescript, Node.js, Express.js, Nest.js, Jest,
Mockito, Docker, PostgreSQL, MongoDB, Redis,
Plasmo, React, Vite, Next.js, Java Spring Boot, AWS
Services, CI/CD, Kafka, Microservices, BullMQ,
Plasmo, TypeORM, Mongoose, grammY, 3-rd party
API's, Swagger, Socket.IO, WebRTC, Stripe