Hi, I'm Kirill Hainovsky

Full Stack Developer with 14+ years of Experience

I create complex ERP/CRM systems, E-Commerce & MarketPlace platforms, web applications, automation solutions, and AI-powered AI assistants. With 14+ years of experience, I focus on building things the right way from the start - so your project stays solid, easy to update, and ready to grow.

Contact Me

Years Experience

Projects Completed

Areas of Expertise

TypeScript
PHP
Symfony
JavaScript
React
Next.js
Node.js
Tailwind CSS
MySQL
PostgreSQL
ElasticSearch
Docker
RabbitMQ
Kibana

Technical Expertise & What I Do

Websites & Web Apps

Modern, responsive websites and full-featured web applications built with cutting-edge technologies.

ERP/CRM Systems

Custom enterprise solutions for managing business processes, customer relationships, and data workflows.

Custom E-commerce

Tailored online stores and marketplace platforms with payment integration, inventory, and analytics.

AI-Powered Applications

Intelligent applications leveraging AI/ML for automation, recommendations, and data analysis.

Automation & Chatbots

Workflow automation tools and conversational AI assistants to streamline business operations.

API Development

Robust RESTful and GraphQL APIs designed for scalability, security, and developer experience.

Technologies

TypeScript

PHP

Symfony

JavaScript

React

Next.js

Node.js

Vue.js

Nuxt.js

Doctrine

API Platform

Tailwind CSS

MySQL

PostgreSQL

ElasticSearch

Docker

RabbitMQ

Kibana

Other Technologies & Tools I Work With

Claude CodeChatGPTGeminiNginxApacheComposerHTMLCSSBootstrapGitnpmYarnWebpackViteSassjQueryHotwire TurboStimulusJSREST APIGraphQLAPI PlatformWebSocketsSOAPOAuth2JWTCI/CDGitHub ActionsAWSDigitalOceanAnsibleChefELK StackJiraConfluenceFigmaPhotoshopPostmanSwagger...and many more

Key Technical Achievements

Hotel Booking System

Built a complete hotel reservation system with real-time availability search, dynamic pricing, and booking management using Symfony and ElasticSearch.

Language Quiz Widget

Developed an embeddable language learning quiz widget with progress tracking, adaptive difficulty, and analytics dashboard.

Language School ERP System

Created a comprehensive ERP system for language schools handling student enrollment, class scheduling, certificates printouts, payment processing, and academic progress tracking. Integrated automated notifications, teacher workload management, and detailed reporting dashboards for school administrators.

Custom Leads CRM System

Built a full-featured CRM system with customizable email templates, automated workflow pipelines, and multi-channel communication via WhatsApp and email. Integrated Google APIs for real-time tracking lead conversion and sales performance.

Legacy Project Modernization

Upgraded large legacy codebases to modern Symfony with zero-downtime migrations and full architecture refactoring.

Insurance Company Platform

Built a multi-domain insurance platform with guided policy wizards and third-party API integrations for quotes and claims.

Professional Experience

Aug 2015 - 2025

Senior Software Engineer

Intexsys

Riga, Latvia

Lead the development of enterprise-level web applications focusing on complex business logic implementation and system architecture.
Designing and implementing scalable backend services using PHP/Symfony (from v2.6 to v6.4).
Building interactive frontend experiences with JavaScript, Vue.js and React
Managing database architecture and optimization (MySQL, PostgreSQL).
Implementing search solutions and fetching data with ElasticSearch.
Leading technical teams and mentoring junior developers.

PHP

Symfony

Vue.js

ElasticSearch

Jan 2013 - Aug 2015

Software Developer

RIA NOVESA

Full-time

Worked as a full-stack developer responsible for the development and maintenance of web applications.
Developing and maintaining responsive web applications.
Working with both frontend and backend technologies.
Database design and optimization.
Collaborating with designers and project managers.

PHP