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I will fix bugs and add features to your existing web app
Jonathan Adel
About this gig
What I Build:
New features added to apps that already exist, and bugs fixed in codebases causing real problems, broken functionality, crashes, or things that just don't work right anymore.
What You Get:
- Bugs fixed at the root cause, not patched over
- New features integrated cleanly with your existing code
- Code left cleaner than I found it, where possible
- Solid, secure implementation regardless of project size
- Clear communication throughout, with updates as I go
Tech Stack:
Frontend: React, Next.js, TypeScript, Tailwind CSS
Backend: Node.js, Express.js
Databases: PostgreSQL, MongoDB, Prisma ORM
Other: REST APIs, Git/GitHub, Vercel. AWS
What's Included:
- Review of your codebase or request before work starts
- Debugging and fixes in existing project.
- New features matching your existing code style
- Post-delivery bug fixing no time limit
Ideal For: Anyone with an existing web or mobile app needing a bug fixed, a feature added, or general dev help without committing to a full rebuild.
Get to know Jonathan Adel
Jonathan Adel
Full Stack Developer specializing in Next, MERN, PERN Stack, and React Native
- FromEgypt
- Member sinceMay 2022
- Avg. response time1 hour
- Last delivery3 years
Languages
English, Arabic, French
Hi, I'm Jonathan — a full-stack developer specializing in the MERN/PERN stack and Next.js, with hands-on experience building production software, including a live ERP system used by a real school.
I build complete web and mobile apps end-to-end — frontend, backend, and database — focused on clean architecture and code that holds up as products grow. I also work with React Native for cross-platform apps, and use AI-assisted workflows to deliver efficiently without cutting corners.
If you need a working product built right, not just something that looks good in a demo, I'm ready to help.
My Portfolio
Other Software Development Services I Offer
FAQ
"Can you work with my existing codebase?"
Yes — I can audit and work inside an existing project, though I'll flag upfront if the code needs cleanup before new features can be safely added.
"Do I need to give you full access to my codebase?"
Just enough to reproduce and fix the issue or build the feature — GitHub access or a shared repo works fine.
"What if the bug turns out to be bigger than expected once you look at it?"
I'll let you know before starting, so we can agree on the scope together — no surprises mid-work.
"Do you offer support after the fix or feature is delivered?"
Yes — I stand behind my work. If an issue shows up tied to what I delivered, I'm available to fix it, no time limit attached.
"What information do you need to get started?"
A description of the bug or feature you need, along with repo access, is enough to get going. If you have steps to reproduce a bug, that helps, but I can also dig in and find it myself.
"Can this turn into a bigger, ongoing arrangement?"
Yes — if it makes sense for both of us, we can continue working together on future fixes or features.
