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Alexey Lesiuk

@alexeylesiuk

Senior Full-Stack / AI Engineer at Future Proof Technology who migrated a live platform to Laravel and built AI-assisted workflows.

Ukraine

Message

At Future Proof Technology (CrazyLister, Pokemon), I led the migration of a large production platform from Zend Framework to Laravel under live traffic constraints. I rebuilt business-critical modules, integrated eBay APIs, and developed an ERP with multi-business-unit architecture and Event Sourcing flows.

At XmlShop, I built HS Libs AI SaaS from scratch in Laravel, including GPT integrations, HS-code prediction, and safeguards for token usage and prompt injection. I also delivered a Symfony/API Platform supplier-integration platform with asynchronous RabbitMQ pipelines.

I’ve worked on high-load platforms, CRM and lending products, and large third-party integrations throughout my career. I develop production code with both manual and AI-assisted workflows, using specialized agents for implementation, validation, code review, and technical documentation.

Experience

Work history, roles, and key accomplishments

AI Engineer - Full Stack developer

Future Proof Technology

Jan 2025 - Sep 2026 (1 year 8 months)

Led migration of a large production platform from Zend Framework to Laravel under live traffic constraints. Rebuilt business-critical modules and integrated eBay APIs.

Laravel PHP PostgreSQL MySQL Docker AWS Sanctum Pest Spatie Packages OpenAPI Scramble OpenTelemetry Bitbucket Pipelines Angular TypeScript Kendo UI Zod Vue.Js Blade NodeJS Elasticsearch Redis mailgun

Senior PHP Developer

XmlShop

Sep 2022 - Jan 2025 (2 years 4 months)

Built HS Libs AI SaaS from scratch (Laravel) with GPT integrations and HS-code prediction. Delivered PRUP supplier-integration platform (Symfony/API Platform) with multi-supplier import pipelines.

Laravel Symfony API Platforms Vue.Js React Python RabbitMQ Redis AWS Docker MySQL Jenkins OpenAPI Swagger Deptrac PHPStan Psalm

Senior PHP Developer

Aventus Group

Apr 2020 - Apr 2022 (2 years)

Developed CRM and lending platform features in a regulated domain, including special offers, deferred payments, and notifications. Integrated scoring flows and payment channels.

PHP Symfony MySQL Docker REST APIs OpenAPI Swagger mailgun ELK

Team Lead / Senior Full Stack Developer

Label Platform

May 2018 - Apr 2020 (1 year 11 months)

Managed a team of 3 developers and led development of a high-load multi-site platform serving 1000+ websites. Built API Gateway and site-engine on Symfony with Node.js health-checker services.

PHP Symfony NodeJS Python Amazon SQS Docker Vertica Selenium Behat Pinba OpenAPI Swagger

Senior PHP Developer

Intellect Internet Technology

Jun 2015 - May 2018 (2 years 11 months)

Built high-load backend services and REST APIs, migrated legacy apps to Laravel, and ran Elasticsearch and MongoDB in production. Developed frontend features with Angular.