About Me

I'm Pavel Sergeev, a full-stack software engineer with 8+ years of building SaaS products in property-tech, health-tech, fintech and e-commerce. I own systems end-to-end: architecture, backend, frontend, infrastructure-as-code and the AI layer on top.

Teams bring me the hard problems: high-load data pipelines on ClickHouse, low-latency request handling with Nginx and Lua, complex third-party integrations (Airbnb, VRBO, Google, payment providers) and LLM features that actually reach users, such as RAG assistants, real-time translation and ChatGPT-driven automation. My core stack is PHP/Laravel and Go on the server, Vue and React on the client, PostgreSQL underneath and AWS around it.

What I'm Doing

Backend Development

PHP / Laravel, Go and Node.js services: APIs, third-party integrations and background jobs, shipped with Docker and CI/CD on AWS.

Frontend Development

Interactive Vue / Nuxt and React / Next.js applications with a responsive, maintainable UI.

AI Integration

LLM-powered features: RAG assistants over large knowledge bases, automated replies, real-time translation and agents with tool calling.

Data & High Load

PostgreSQL, MySQL and ClickHouse: schema design, SQL optimization and real-time analytics for high-traffic systems.

Testimonials

Pavel Tsymbal

Worked with Pavel on the same project using Laravel/Vue, Pavel knowledge with this technologies helped us speed up development to a new level.

Vladislav Panfilov

Pavel is very easy to work with person, able to work under hard deadlines and participating in team decisions.

Sergey Lemeshev

Great PHP developer to work with, good knowledge of GoF patterns, SOLID, GRASP. Experienced with docker.

Clients