Ivan Serbeniuk

Full Stack Developer: PHP & Python, React.
3+ years building web apps, APIs, CRM and LLM integrations.

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Skills

Backend: PHP (Laravel, CodeIgniter 3/4, WordPress), Python (FastAPI, Django), REST API design
Frontend & mobile: JavaScript, React, React Native, HTML5, CSS3
Databases: MySQL, PostgreSQL, query optimization
Integrations: OpenAI GPT, Google OCR, Bitrix24 CRM, Google Analytics, Ringostat
Web scraping: Selenium, BeautifulSoup, Scrapy, Requests
DevOps: Docker, CI/CD, Git, Linux, AWS, DigitalOcean
Languages: Ukrainian (native), Russian (fluent), English (B2), Polish (B1)

Mitridat Container — Full Stack Developer

05/2026 – Present

Rebuilt the company websites from scratch on Laravel with a custom admin panel: faster load times, higher conversion, easier content management
Developed backend services with FastAPI
Integrated the websites with Bitrix24 CRM
Set up analytics and call tracking: Google Analytics, Ringostat
Web scraping and data collection
Developing the company's mobile app with React Native
Developing and maintaining Laravel websites:
Maintaining the WordPress corporate website mitridat-container.com

WCS — Full Stack Developer (Middle)

2023 – 12/2025

LLM-powered insurance document processing
- Integrated OpenAI GPT and Google OCR for automated document analysis
- Implemented document classification and data extraction
- Developed APIs that deliver structured results directly to agents
Furniture configurators
- Backend (CodeIgniter 3/4): business logic, REST APIs
- Frontend: React, JavaScript, markup
- Databases: MySQL, query optimization
- Delivered:
  - specialt.net/tables
  - build.loftwall.com
  - build.ghent.com
  - + several private B2B configurators (internal, not publicly accessible)

Freelance / Non-Commercial Projects

02/2022 – 2023

Volunteer website — respondua.org
- Backend (Django/Python): API development, integrations
- Frontend: markup, JavaScript
- Deployment: Docker, CI/CD, DigitalOcean/AWS
Web scraping with BeautifulSoup and Requests; data extraction and processing (JSON, databases)