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Gleb Okhrimenko

@sun

Senior Fullstack Developer

Senior Fullstack Engineer with 5+ years of experience in Node.js and scalable architecture, specializing in end-to-end feature ownership and AI-powered analytics.

Open to

Learning with othersMentoring others

Career

Experience: 6 years

Experience

Senior Fullstack developer

PriorityArc

AgriTech platform for livestock lifecycle management and digital product passports — QR traceability from farm to end product.

Apr 2025 — Present

Owns backend architecture for an AgriTech platform, regulatory integrations, and an LLM analytics pipeline; also established CI/CD and mentors engineers.

• Owned and scaled the backend architecture for a core AgriTech platform, designing microservices with NestJS, Fastify, PostgreSQL, and BullMQ to handle digital product passport data. • Engineered a resilient integration layer to connect with external government regulatory APIs, ensuring data consistency and compliance for farm-to-product traceability. • Built and deployed an LLM-powered analytics pipeline using Claude and Vercel AI SDK, which automatically redacts PII and delivers actionable support insights to business teams via Slack.

Fullstack developer

3205.team

Service for downloading, converting and processing video / audio from major social platforms.

Feb 2024 — Mar 2025

Built event-driven media processing services handling 8,000+ assets, including downloads, conversions, storage, and integrations with major social platforms.

• Designed and built an event-driven media processing backend using NestJS and Redis, capable of handling 8,000+ video/audio assets from major social platforms. • Developed robust download and conversion services using FFmpeg, processing large media files and storing them efficiently in PostgreSQL and AWS S3. • Engineered a resilient API integration system to parse data from YouTube, Instagram, and TikTok, implementing back-off and retry logic to navigate strict rate limits and frequent API changes.

Backend developer

University Mobile Platform - EdTech

Oct 2022 — Feb 2024

Built a centralized EdTech API, integrated legacy FirebirdSQL data, and reduced database load by 70% with Redis caching.

• Architected and built a centralized REST API from scratch using NestJS, serving as the single source of truth for all student data and campus services on the mobile app. • Solved a critical legacy integration challenge by developing a custom ODBC wrapper, enabling modern Node.js services to communicate with an old FirebirdSQL database. • Implemented Redis caching for frequently accessed data, reducing database load by 70% during peak exam periods and ensuring high availability.

Frontend/Fullstack developer

AXAMIT

Feb 2020 — Oct 2022

Built API and proxy services for a high-traffic WordPress site and an employee portal, and contributed to React and Vue frontend work.

• Developed a high-performance Fastify proxy server and GraphQL API layer to aggregate data from multiple backend sources, optimizing data fetching for a high-traffic headless WordPress site. • Built and maintained REST APIs using Express and MongoDB for an internal employee management portal, with comprehensive test coverage using Jest. • Configured Nginx as a reverse proxy for routing and load balancing across various Node.js applications. • Contributed to frontend development with React and Vue, gaining a full-stack perspective that informs my backend architectural decisions.

Education

Aplikovaná informatika

Fakulta prírodných vied a informatiky, Univerzita Konštantína Filozofa v Nitre

2023

Information systems and technologies

Institute of Cybersecurity and Digital Technologies, MIREA – Russian Technological University

2020 — 2022

Information systems and technologies

Institute of Cybersecurity and Digital Technologies, MIREA – Russian Technological University

2016 — 2020

Skills

TypeScriptJavaScriptSQLNode.jsNestJSFastifyExpressGraphQLREST APINext.jsReactVuePostgreSQLRedisMongoDBFirebirdSQLAWS (S3, Lambda, SQS)DockerGitLab CI/CDNginx