Open to opportunities

Sergei Ableeb

@sergeiableeb

Message

Backend developer specializing in PHP, performance optimization, and legacy modernization.

Georgia

Message

What I'm looking for

I seek backend roles where I can modernize legacy systems, optimize performance, and drive scalable architectures in collaborative, growth-focused teams.

I am a backend developer with six years of experience focused on PHP, software architecture, performance optimization, and refactoring legacy systems. I deliver measurable impact—migrating legacy projects to modern PHP, improving performance by up to 70%, and building 50+ features used by 50K+ users.

I emphasize maintainability, scalable architectures, and team practices such as peer code review. My work spans REST, GraphQL, microservices, containerized deployments, and optimizing databases and caching to reduce latency and technical debt.

Experience

Work history, roles, and key accomplishments

Current

Backend Developer

Current

Northern Light

Jul 2022 - Present (3 years 2 months)

Migrated 10 legacy PHP5 projects to PHP 8, eliminated security risks and improved performance by up to 70%, and delivered 50+ REST API features used by 50K+ users while reducing system latency by 30%.

PHP 8+Laravel REST APIs MySQL Performance Profiling Caching Docker CI CD Code Review

Backend Developer

BodySite

Aug 2020 - Jul 2022 (1 year 11 months)

Built an API used by thousands of stores, optimized five stores to reduce response time by 24% on average, removed 10,000 lines of legacy code, and migrated infrastructure to container architecture for scalable deployments.

PHP APIs Caching Docker Kubernetes MySQL Performance Optimization CI CD

Backend Developer

Web Studio

Jan 2019 - Aug 2020 (1 year 7 months)

Integrated business systems with Telegram, Facebook, and Google Sheets APIs, improved accessibility with a color-blind website version, and developed a 3D capacity calculator using TypeScript and Three.js to simplify delivery ordering.