I will modernize your legacy system to python, laravel, or web apps

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Jono Sinergifx
modernize your legacy system to python, laravel, or web apps
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modernize your legacy system to python, laravel, or web apps

About this gig

Still running critical business operations on outdated desktop apps, old PHP, or Clipper/xBase systems? I specialize in migrating legacy codebases to modern, maintainable architectures without losing your business logic.


Recent projects:

  • Migrated Clipper/xBase accounting system Python (Flet/NiceGUI) with full GL, journal entries, and financial reports
  • Modernized Excel-based investment tracking Laravel 12 + Filament with append-only idempotent ledger
  • Converted desktop apps responsive web applications with role-based access


What I offer:

  • Legacy Code Assessment Review your current system and create a modernization roadmap
  • Database Migration Move from old databases (Access, FoxPro, Excel) to PostgreSQL/MySQL
  • Backend Modernization Rewrite in Python, Laravel, or Node.js with clean architecture
  • Desktop-to-Web Migration Convert desktop apps to responsive web applications
  • API Development Build REST APIs to replace direct database access
  • Dashboard & Reporting Modern UI with real-time data, charts, and exportable reports


Tech-stack:

Python (Flet, NiceGUI, FastAPI), PHP/Laravel 11/12, Filament, React, PostgreSQL, MySQL, SQLite

  • Programming language

    • Python

  • Expertise

    • Algorithms & Data structures
    • Performance
    • Operating systems
    • Databases
    • Testing procedures

  • Frontend framework

    • React.js
    • Svelte
    • Tailwind CSS

  • Backend framework

    • Django
    • FastAPI
    • Laravel
    • Next.js
    • Node.js

Get to know Jono Sinergifx

Jono Sinergifx

Expert MT4 MT5 Developer, 25Years Tech Background, FullStack WebSpecialist

4.9(7)
  • FromIndonesia
  • Member sinceJun 2017
  • Avg. response time10 days
  • Last delivery1 year

  • Languages

    English, Indonesian, Javanese
Professional MT4/MQL4 Specialist & Full-Stack Developer with 25+ Years of Experience. Lead a dedicated technical team specializing in high-performance automation and web solutions. With an engineering background, I bridge the gap between complex financial algorithms and user-centric apps. Core Expertise: Trading Automation: Custom MT4 Expert Advisors (EA), Indicators, and Bridge Systems. Modern WebApps: Scalable solutions using PHP (Laravel), Python, and React. Data & GIS: Advanced Data Analysis, MySQL optimization, and Geospatial Mapping. Contact me to discuss your project requirements!

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