Диас Гайнатулин

I’m a Senior Backend Developer with 3+ years of production experience, starting with core RESTful APIs and growing into owning the architecture of a new AI-agent microservice line. I’m trusted with cross-stack design decisions across PHP/Laravel and Node.js/Express, and I mentor junior engineers.

I’m comfortable moving from database performance work to distributed, event-driven systems. I’ve shipped fault-tolerant services using SOLID and clean-architecture principles, including an AI-agent microservice built with REST and background workers, orchestration via LangChain/LangGraph, and PostgreSQL access through Knex/Objection.

In my current role, I redesigned Laravel architecture into modular components to speed delivery, optimized MySQL/PostgreSQL with schema and index improvements, and improved performance using Redis queues, caching, and rate limiting. I also drive quality through PHPUnit/Jest testing, CI/CD, Sentry monitoring, and production deployments on Docker and Kubernetes.