Arthur Melikyan

Senior PHP / Laravel Engineer

Open to remote & relocation

Objective

Senior PHP/Laravel engineer with 7+ years building AI integrations, fast APIs and high-performance backends for consumer products.

I write clean, secure, efficient code and tune the full stack — Linux, Nginx, Redis — when performance matters.

Integrated 12+ AI models (OpenAI, Anthropic, Google Gemini and more) behind one unified interface.
Built multiple payment integrations with PCI-aware flows.
Set up and tuned Linux servers with Nginx / Apache, Redis and queue workers.
Test-driven development (TDD) and SOLID principles for reliable, maintainable code.
Deliver in Agile/Scrum teams (Jira, Trello, ClickUp).

Professional experience

Hyperspace.ai — Senior Full-Stack Engineer (PHP/Laravel)
Apr 2024 - Jul 2026
- Led the AI-integration layer of a generative-AI product — 12+ external models (OpenAI, Anthropic Claude, Google Gemini, Mistral, Midjourney, Leonardo, fal.ai, ElevenLabs, Suno and more) behind one interface, so the rest of the product did not need to know which model ran.
- Built and maintained chat and content-generation flows across text, image, audio and voice — streaming responses, plan-based quotas, multi-model selection, and a migration of the old chat schema to a new conversations model.
- Cut API response times 4–5× through query tuning, code refactoring, smaller payloads, caching and Laravel Octane, and built new API layers for cleaner data flow to web and mobile.
- Scaled SEO for a large-page product (sitemap splitting, feeds, structured data) and kept the platform current with regular PHP/Laravel upgrades and queue tuning.
Stack: PHP/Laravel, Laravel Octane, Eloquent ORM, Vue, Nuxt, PostgreSQL, Redis, Algolia, Laravel Horizon, WebSockets, Docker, Linux, Nginx, CI/CD, PM2, PHPUnit, unit testing.
Lovel AI — Backend Engineer
Jan 2026 - Apr 2026
Concurrent fixed-term assignment at a company affiliated with Hyperspace.ai; the Hyperspace.ai role continued uninterrupted throughout.
- Built new features and fixed high-impact bugs across a Hypervel stack of 10+ microservices.
- Fixed payment-flow issues — refunds, webhook retries and idempotency — affecting live transactions.
- Improved caching and Redis usage, cutting repeated database calls on hot read paths.
- Built REST API endpoints for internal services and the client app, with services talking over a NATS message broker for low-latency events.
Stack: PHP/Hypervel, PostgreSQL, Redis, NATS, microservices, REST API design, payment-system integration, caching strategy, Docker, Linux, Nginx.
Elite Dev Squad — Laravel Full-Stack Developer
Nov 2021 - Feb 2024
- Delivered company-management software, APIs, online stores, web scrapers and dashboards — including rebuilding a buggy legacy codebase into a scalable Laravel app.
- Led a complex company-management app over a large database of Irish businesses — task management with recurring jobs, document and event management, and automated/manual time tracking with charts.
- Improved performance — lower memory use through efficient queries, dynamic loading and bug fixes.
- Reviewed teammates’ code for quality, and automated tests and deploys with CI/CD and GitHub Actions — 50% faster deploys.
Stack: PHP/Laravel, Livewire, MySQL, PostgreSQL, Clickhouse, Redis, JavaScript, Alpine.js, jQuery, CRON job scheduling, queued jobs, external API integration, large-file handling, Microsoft files viewing integration, online payment integrations, REST API integration, Docker, Linux, Nginx, PHPUnit, Pest, unit testing, code coverage analysis.
Code Alliance — Laravel Developer
Aug 2021 - Nov 2021
- Built and ran CRM systems with easy dashboards and secure data, and automated large-scale bank transaction processing via queued jobs and memory tuning.
Stack: PHP/Laravel, MySQL, Redis, JavaScript, CSS, bank-transaction APIs, queued jobs, optimization, secure data management, Linux, Nginx.
Aist Global — Laravel Full-Stack Developer
Mar 2021 - Aug 2021
- Developed a Udemy-like online-school platform — course uploads, online meetings, student interactions — and added secure payments.
- Built a Lottie Animation Marketplace with a dashboard, REST APIs and docs, and published a custom quiz package on Packagist.
Stack: PHP/Laravel, JavaScript, multi-tenant applications, Vue.js, jQuery, MySQL, Redis, package development, payment-system integration, front-end development, Lottie animation integration, Linux, Nginx.
Brain Fors — Laravel Developer
Nov 2018 - Mar 2021
- Built and launched an e-sports platform (hundreds of active users at launch), using Riot and Valve APIs for live match results, stats, player positions and ELO-based tournaments.
- Added real-time chat, strong security for data integrity and privacy, and REST APIs for mobile apps and online shops.
Stack: PHP/Laravel, MySQL, Redis, JavaScript, Vue.js, jQuery, Pusher.js, REST API development, external API integrations, real-time communication protocols, data visualization, security best practices, Linux, Nginx.