Victor Grishchenko

Bis 2025, Team Leader, PlanetVPN
Berlin, Deutschland

Fähigkeiten und Kenntnisse

PHP
Go (programming language)
Python
Bash
SQL
MySQL
PostgreSQL
JavaScript
Vue.js
jQuery
HTML
CSS
MariaDB
MongoDB
Redis
Memcached
RabbitMQ
Docker
CI/CD
AWS
Nginx
Apache
Cloudflare
Ansible
Make
Grafana
Kibana
Elasticsearch
Postman
Swagger
Composer
Git
GitLab
REST
RPC
GraphQL
API
JSON
XML
Test Driven Development (TDD)
Domain-driven Design (DDD)
Microservices
SEO
Backend
Documentation
Web applications
Laravel
Symphony
Leadership
Technical Knowledge
Scrum

Werdegang

Berufserfahrung von Victor Grishchenko

  • 5 Jahre und 7 Monate, Nov. 2019 - Mai 2025

    Team Leader

    PlanetVPN

    – introduced cross-review practices, TDD and tech documentation standards – designed an RESTful API-based CRM – built 5+ B2C and B2B products from MVP to high-traffic systems, scaling to 2000+ RPS and 10M+ users – migrated legacy Laravel & PHP to the latest versions; boosted performance by up to 30% – optimized SQL and caching; reduced traffic by 2 TB/month and infrastructure costs by 40% – refactored monoliths into modular services; enhancing scalability and accelerating product delivery speed by 2x

  • 7 Jahre und 10 Monate, Feb. 2012 - Nov. 2019

    Full-Stack Developer

    Coupon Aggregator

    - designed a core CRM system and 10+ websites and white-label solutions - scaled infrastructure and improved SEO strategies to increase traffic; reached 3M+ monthly users - set up GitLab workflows, CI/CD, Docker, PSR standards; reduced production bugs by 3x - built scraping tools for 300+ websites and integrated 20+ affiliate network APIs - implemented Google AMP, chatbots, mobile apps; increased revenue by 20% - configured and maintained infrastructure with PHP, MySQL, Nginx, Cloudflare with 99.99% uptime

Sprachen

  • Russisch

    Muttersprache

  • Englisch

    Fließend

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