I will build a custom web app or internal tool for your business

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guillaume_oj
G
guillaume_oj
Guillaume O
build a custom web app or internal tool for your business
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build a custom web app or internal tool for your business

About this gig

Spreadsheets and manual processes only get you so far. When your team is copy-pasting between tools or chasing the same data every week, a small custom app pays for itself fast.

I build web tools tailored to how you actually work dashboards, trackers, booking systems, internal admin panels, client portals. Whatever the repetitive task is, I'll turn it into software that does it for you.

Founder of Fusily, exEpic Games and Sketchfab, specialising in scalable Python backends. I take you from a first working MVP to a fully production-ready tool: clean code, honest timelines, clear updates throughout.

Describe the task that's eating your time and I'll show you how to automate it.

  • Website type

    • Saas

  • Programming language

    • HTML & CSS
    • JavaScript
    • Python
    • React
    • Django

  • Website features

    • User Authentication
    • Admin Panel
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Get to know Guillaume O

Guillaume O

Your technical partner, from first MVP to finished product

  • FromFrance
  • Member sinceDec 2025

  • Languages

    English, French
I'm the founder of Fusily and an experienced web developer specializing in Python backends and mobile apps. I've built scalable systems at companies like Epic Games and Sketchfab, and today I help small businesses and nonprofits turn their ideas into reality — especially non-technical founders who need a reliable partner. From a simple website to custom tools for your daily operations, I'll build exactly what you need: first MVP to production-ready. Clear communication, honest timelines, clean code. Tell me what you're building and I'll help you ship it.

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