Browse categories
English
$
USD
Connect to your AI
I will fix bugs in your nodejs, nestjs, nextjs or react app
Darshan R.
About this gig
Is your Node.js, NestJS, Next.js or React app throwing errors, crashing or giving wrong results? I will find the real cause, fix it properly and explain what was wrong in simple words.
I can help with:
- Server errors (500), crashes and failed API calls
- Database problems with PostgreSQL, Prisma or TypeORM
- Login, JWT and permission issues
- Next.js and React errors, broken pages and hydration warnings
- Wrong totals, dates and time zones in reports
- Build, TypeScript and deployment errors
How it works:
1. Message me first with the error and, if possible, steps to reproduce it.
2. I check it and tell you if it fits the package.
3. You share the code (GitHub, GitLab or a zip).
4. I fix it, test it and send the changes with a short report.
Example of my work: in my own IoT project I found and fixed a bug where 93 of 100 readings were lost under load. Now all 100 are saved, in the right order (github.com/Darshan0502/iot-monitor).
Get to know Darshan R.
Darshan R.
Full Stack Developer, NestJS, React and IoT
- FromIndia
- Member sinceOct 2026
Languages
Hindi, Gujarati, English
Full stack developer with 2+ years of experience, focused on the backend: NestJS, Node.js, TypeScript and PostgreSQL, with Next.js and React on the front end. I have built production systems for clients in Korea, including a hospital revenue platform with payment gateway, card and bank data integrations, and IoT backends that receive device data over MQTT, raise alerts and push live updates. I write clean, typed code with validation, API docs and tests. Open-source example: github.com/Darshan0502/iot-monitor
Other Software Development Services I Offer
FAQ
What if you cannot fix the bug?
I check the problem before you order. If I still cannot fix it, you get a full refund.
Do you need access to my server?
Usually only the code. If the bug happens only on the server, I will ask for the logs first.
