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eugene zaiko

@eugenezaiko

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Senior software engineer delivering distributed backend systems and AI-integrated products with NestJS and TypeScript.

Belarus

Message

What I'm looking for

I’m looking for Senior Full-Stack/Backend work building high-load distributed systems and AI-integrated features—shipping MVPs fast, optimizing analytical workloads, and designing reliable multi-tenant architectures in fintech contexts.

I’m a Senior Software Engineer with 5+ years of commercial experience specializing in distributed backend architectures and AI-integrated applications. I focus on shipping production-ready MVPs quickly, turning complex requirements into reliable systems.

Most recently, I architected an event-driven media orchestration system using NestJS with BullMQ, Redis, and AWS S3—delivering a production-ready MVP from scratch in 2 months. I also built asynchronous AI inference pipelines with queue-based concurrency control and job prioritization for thousands of concurrent requests.

I’m proud of the operational outcomes I drive: I implemented idempotent job processing and automated credit refunds for failed tasks, reducing billing-related support tickets to zero. I also optimized real-time status tracking via WebSockets to improve visibility during long-running generation jobs.

Across other roles, I optimized analytical workloads over 109M+ records by partitioning and execution-plan analysis, reduced data retrieval time from 1 hour to sub-5 seconds, and modernized legacy systems by migrating core modules to PHP 8 and Symfony—cutting recurring production incidents by 40%. I’m now looking to bring the same backend rigor to Senior Full-Stack/Backend/NestJS/PHP opportunities, especially in fintech, AI integrations, and high-load distributed systems.

Experience

Work history, roles, and key accomplishments

Back End Developer

PixelPlex

Sep 2025 - Jun 2026 (9 months)

- Architected an event-driven media orchestration system (NestJS, BullMQ,
Redis, AWS S3), delivering a production-ready MVP from scratch in 2 months.

- Engineered asynchronous AI inference pipelines with queue-based concurrency
control and job prioritization, supporting concurrent processing of
thousands of requests.

- Implemented idempotent job processing and automated credit refund

WebSockets Event Driven Architecture Asynchronous Idempotent Processing Next.js TypeScript PostgreSQL NestJS RabbitMQ Docker AWS S3 BullMQ Redis

Full Stack Engineer

Syberry

Oct 2024 - Sep 2025 (11 months)

- Optimized PostgreSQL reporting queries over 109M+ records through table
partitioning and execution-plan analysis, reducing retrieval time from 1
hour to sub-5 seconds.

- Modernized legacy enterprise systems by migrating core modules to PHP 8 and
Symfony, reducing recurring production incidents by 40%.

- Developed high-density analytical dashboards (React, TypeScript), enabling

REST APIs RBAC Дизайнер продукту HTML5 HTML Gulp TypeScript MySQL Playwright MariaDB Docker Git SOLID SQL React JavaScript Drupal MERN Webpack NestJS MongoDB TypeORM PHP jQuery

Full-stack Developer

Linnovate Technologies Ltd.

May 2021 - Oct 2024 (3 years 5 months)

- Managed a multisite infrastructure for Tel Aviv University, coordinating
migrations and schema updates across 216+ independent databases.

- Contributed to a full-stack modernization from legacy jQuery to a
React/Node.js architecture, increasing development throughput for new
features by 30%.

- Built custom dynamic workflows in SuiteCRM (PHP), reverse-engineering
platform intern