MATTON JEF

Expert in data synchronization systems, backend developer, flutter developer, continuous learner and tireless builder.

Contact

Yaounde, Jouvence

+237 693 13 83 63

Skills

Web Development

  • Python: Expert, 10+ years
  • Django: Expert, 8+ years
  • Django Rest Framework: Expert, 7+ years
  • PostgreSQL: Basic, 8+ years
  • Bootstrap: Average, 5+ years
  • Celery: Expert, 5+ years
  • JavaScript: Basic, 1+ year

Scraping

  • Selenium: Advanced, 4+ years
  • Playwright: Advanced, 2+ years
  • BeautifulSoup: Advanced, 5+ years

GUI Development

  • Tkinter: Advanced, 2 years
  • PySide (Qt): Advanced, 2 years
  • Flutter: Advanced, 3+ years

AI Development

  • Agent development: Advanced, 2 years
  • LLM libraries & tools development: Advanced, 2 years
  • LLM integration: Advanced, 2 years
  • Langchain, Langgraph, litellm, custom libaries

Others

  • C: Advanced, 3+ years
  • Android: Average, 2+ years
  • C++: Average, 3+ years
  • Qt: Average, 2+ years
  • System Administration: Advanced, 6+ years
  • Jenkins
  • Redis
  • RabbitMQ
  • Telegram Bot Development

Experience

Connectivo AB — Web Backend Developer
Jan 2020 – Present

Maintaining and developing services, apps, and internal frameworks.

Upwork / Guru / Fiverr — Freelance Developer
Sept 2017 – Jan 2020

Developing scripts, desktop applications, bots, and simple websites.

Projects

Service to sync data between webshops and accounting softwares: Automatiseramera.se

Techs: Django, DRF, Celery, Software Architecture

Responsibilities: Stabilization of existing backend, refactoring to make the system DRY, KISS, extensible and robust.

Results: After my refactoring, the system became more stable and predictable, easier to grow and to maintain.

Framework for building SaaS for syncing APIs (internal at Connectivo).

Techs: Django, DRF, Celery, REST API, Data Syncing

Responsibilities: Create a new framework on top of Django that will allow the company to start new projects and get a performant MVP very fast.

Results: Synkio is used internally for some SaaS

Framework combining connectors, REST APIs, and clients for service automation.

Techs: Django, DRF, PyInstaller, Python, RabbitMQ

Responsibilities: Develop a framework, to easily expose any offline software.

Results: The framework has been developed and his currently used to expose Visma Admin software to Automatiseramera and Synkio.

Lightweight log management solution (2GB RAM compatible).

Techs: Django, DRF, RabbitMQ, Falcon, Flutter, TDEngine, SQLite

Responsibilities: Develop a tiny log management solution that can fit into 2GB of RAM.

Results: LogTower is able to process thousands log entries per minute without crashing with only 2GB of RAM. There is a flutter app that is connected to the backend and allow you to watch logs in live.

Permission management library for Django and DRF (private).

Techs: Django, DRF

Responsabilities: Develop a django package to handle permissions in an easier and fast way.

Results: django-ups is an excellent django package that allows managing permissions on a table and object levels.

Django library to send notifications easily. GitHub: jefcolbi/django-magic-notifier

Tiny Django library to run a blog. My blog Jefcolbi's Blog uses it. GitHub: jefcolbi/sweetblog

Python framework for building Telegram bots with Django. GitHub: nina-gram/ninagram

Python mini-framework to build agent. Github: jefcolbi/sweetagent

Contact Me