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Fiverr Pro
English
$
USD
I will fix your nodejs nestjs laravel or postgresql backend bug fast and professionally
Malshan H
About this gig
Is your Node.js backend throwing errors you can't figure out? Stuck on a broken API endpoint, a failing database query, or a TypeORM relation that won't resolve? You're in the right place.
I'm a backend developer specializing in Node.js, NestJS, Express, TypeORM, and PostgreSQL. I debug the errors that eat hours of your time npm install failures, SQL constraint violations, TypeScript type mismatches, broken migrations, and misconfigured REST endpoints.
What makes me different:
I don't just patch the symptom and deliver. I explain the root cause in plain language so you understand what went wrong and how to prevent it. Every fix comes with a clear summary of what changed and why.
I've worked on wallet and transaction systems, role-based access control (RBAC), JWT authentication flows, and complex PostgreSQL schemas with multi-table joins and migrations. If your bug lives somewhere in that stack, I know where to look.
Not sure if your task fits a package? Message me before ordering. I'll scope it honestly and recommend the right option no upselling just to pad an order.
New on Fiverr. Serious about quality. Every order gets my full attention.
Get to know Malshan H
Malshan H
Associate Software Engineer
- FromSri Lanka
- Member sinceJul 2023
Languages
Sinhala, English
As an associate software engineer at Aventure IT, I specialize in building robust, scalable backend systems and full-stack web applications. With nearly two years of industry experience, progressing from intern to associate. I have a deep understanding of the MERN stack, Node.js, and database management (MySQL/MongoDB). My background in computer engineering allows me to integrate advanced technologies like AI/LLMs and Blockchain into real-world solutions, ensuring high performance and security for every project.
Other Software Development Services I Offer
FAQ
Why is your Basic package only $5 — is it actually useful?
Yes. For $5 you get a detailed written diagnosis of your error — what's causing it and exactly how to fix it, step by step. If you're comfortable implementing fixes yourself, this is all you need. If you'd rather I fix it for you, that's the $15 Standard package.
Can you work on my existing codebase, not just new projects?
That's mostly what I do. Share your repo link or a zip file, describe the error, and I'll dig straight in. Undocumented or messy code is normal — it won't slow me down.
What information do you need to get started?
The more context the better: your error message and stack trace, the relevant code file(s), your Node and package versions, and a brief description of what you expected to happen. Screenshots of the error are always helpful.
Do you work with Express, or only NestJS?
Both. I use NestJS for structured projects and Express for simpler or legacy APIs. If you're unsure which applies to your project, just share what you have and I'll work with it.
What if the fix turns out to be more complex than one bug?
I'll let you know before I start if I spot a larger issue. I won't silently go out of scope and charge extra — we'll agree on the scope first. If it needs the Premium package, I'll say so upfront.
Can you fix bugs related to PostgreSQL transactions or migrations?
Yes — migration failures, transaction rollback issues, foreign key conflicts, and schema mismatches are things I handle regularly. Include your migration files and any SQL error logs when you order.
I'm not a developer — will I understand your delivery?
Absolutely. Every delivery includes a plain-English summary: what was wrong, what I changed, and how to apply or test it. No jargon unless you want it.
