About Me

Denis as a Developer

Experienced developer with more than 15 years in Ruby on Rails — since 2010. I ran my own IT business and built a highload solo project handling 20,000 requests per second.

0
Years in Rails
0
Requests / sec
0→0
Servers after rewrite
0
Pet projects
Achievement

Rewrote Rails API to Elixir

I migrated my Ruby on Rails API to Elixir and reduced infrastructure from 10 servers down to 2 — same throughput, far less overhead.

Key Skills

Backend

  • Ruby on Rails
  • Elixir + Phoenix
  • Crystal + Amber
  • Sidekiq
  • ActionCable

Databases & Cache

  • PostgreSQL
  • MySQL
  • Redis
  • MongoDB
  • Memcached

Frontend & Mobile

  • EmberJS
  • Flutter
  • Bootstrap / Tailwind

Infrastructure & Tools

  • Kafka
  • RabbitMQ
  • Nginx
  • Git
  • RSpec

PostgreSQL & Redis with master-slave replication

Experience

Current, Solo founder/developer

vega-trader.com

Building a platform for options traders. Ruby on Rails + EmberJS.

Past role

Ruby on Rails Tech Lead

Managed a team of 0 developers.

Solo founder

Own IT Business

Developed and operated my own highload product end-to-end — architecture, backend, frontend, and infrastructure.

Pet Projects

10stars.app

Reviews on phones and social networks

RailsPostgreSQLRSpec

Fotgo

Instagram clone

Rails 7PostgreSQLSidekiqFlutter

Zedconnects

Avito-style marketplace clone for Zambia

RailsPostgreSQLEmberJSRedis

Mapsy.chat

Chat on the map

RailsPostgreSQLEmberJSActionCable

Education

2004 – 2010

Bauman Moscow State Technical University

Informational Technologies — Master's degree

Why me?

01

Fast delivery

I like to deliver features fast and use AI to code more efficiently.

02

Reliable code

I cover code with tests, so features stay stable after release.

03

Best practices

I use proven engineering practices to keep code clean, maintainable, and production-ready.

Let's work together

Need a senior developer or IT consultant?

  • I know how to solve any IT problems
  • I know how to deploy code to production from scratch
  • I can be your external IT consultant
Hire me