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I will fix, upgrade or build your java spring boot backend and rest api
Abdullah Afzal
About this gig
Is your Spring Boot app full of errors or stuck on an old version? Need a new backend? I fix, upgrade and build Java Spring Boot backends and REST APIs for startups, small businesses and developer teams.
Spring Boot is my strongest skill. I have a BSc in Software Engineering from UET Lahore and 4 years of full stack web development experience.
WHAT I CAN DO
- Fix bugs and errors in your Spring Boot app
- Upgrade old apps to Spring Boot 3 or 4
- Build new REST APIs with clean code
- Add safe login with Spring Security, JWT and user roles
- Set up a PostgreSQL or MySQL database with JPA
- Connect email, file storage or payment services
- Run your backend in Docker on a Linux server (VPS)
WITH EVERY NEW API YOU GET
- Full source code and a README that shows how to run it
- Swagger docs and a Postman collection to test the API
- Unit tests for the main logic
- Free bug fixes for 14 to 30 days after delivery
HOW IT WORKS
- You send me your idea or your code
- I check it, and we agree on the work in writing
- I send you updates while I work
- You test it and ask for changes if needed
Not sure which package fits? Send me a message and I will help.
Get to know Abdullah Afzal
Abdullah Afzal
Spring Boot, Next JS and Python Scraping Developer
- FromPakistan
- Member sinceJun 2022
Languages
Urdu, English
Hi, I'm Abdullah, a software engineer from Pakistan. I have a BSc in Software Engineering from UET Lahore and 4 years of full stack web development experience. Spring Boot is my strongest skill.
I can help you with:
• Java Spring Boot backends and REST APIs: new builds, fixes and upgrades
• Full stack web apps with Next JS (React) and Spring Boot
• Python web scraping into CSV, Excel or JSON files
Before I start, we agree on the work in writing. While I work, I send you updates. I speak English and Urdu. Not sure which service you need? Send me a message.
FAQ
Can you fix or add to my existing Spring Boot app?
Yes. Basic covers 1 bug fix or 1 small feature, up to 3 hours of work, in an app that already builds and runs. Send the zip with the error log or the steps to see the bug. If it needs more time, I tell you within 24 hours and offer an extra before I do more. Upgrades: see the last FAQ.
What is an endpoint?
One URL with one action, for example GET /orders or POST /orders. Full create, read, update and delete for one table is usually 5 endpoints, so Standard covers 2 tables and Premium covers 3. Users, login and sign-up are free. In an existing app, docs and tests cover only what I add or change.
Which technologies and versions do you use?
Java with Spring Boot, Spring Security, Spring Data JPA and Hibernate, and PostgreSQL or MySQL. For new projects I use the current Java LTS and a recent stable Spring Boot release. For existing projects I match your versions.
Do you build the frontend as well?
This gig covers the backend only. I make the API ready for your web or mobile frontend, with CORS set up and clear docs. Need a Next.js frontend too? My full stack Next.js and Spring Boot gig covers both, or message me for a custom offer.
Which third-party services can you connect?
Premium includes 1 integration: email sending, file storage or payments. It uses your own provider account and test or sandbox keys. Payments are delivered in test mode, and you switch to live keys on your side. More integrations are available as a custom offer.
Can you deploy it, and who pays for hosting?
Premium includes deployment with Docker to 1 Linux VPS you own, e.g. Ubuntu. Share access in the order chat early, since delivery time includes it. Kubernetes, CI/CD and managed cloud setups are custom offers. Hosting, domain and paid API costs go on your accounts.
What if I find a bug after delivery?
Bugs in the code I delivered are fixed free for 7 days (Basic), 14 days (Standard) or 30 days (Premium), as long as the code has not been changed by others. Server or hosting issues, new features and scope changes are handled with a custom offer.
You have no reviews yet. Why should I order from you?
I'm new to Fiverr, not to coding. I have a BSc in Software Engineering from UET Lahore and 4 years of full stack web development experience. You get the work agreed in writing, regular updates, full source code with a README, and free bug fixes after delivery.
Can you upgrade my app to a newer Spring Boot version?
Yes. I move apps from Spring Boot 2 to 3, or from 3 to 4, with a newer Java version. This covers the javax to jakarta change, Spring Security updates and broken libraries. Spring Boot 3.5 stopped getting free updates in June 2026. Send me your zip and I'll send a custom offer.
