You will get REST API Development for Your Web or Mobile App | Spring Boot & PostgreSQL
Rising Talent
Rising Talent
Project details
Your app is only as reliable as the API powering it.
I build secure, well-structured REST APIs for SaaS products, mobile apps, and internal business tools using Spring Boot and SQL. Whether you're launching an MVP or adding backend functionality to an existing product, I'll build an API that's clean, documented, and ready to scale.
In 3+ years of production development, I've built backend systems for healthcare platforms, logistics software, and point-of-sale systems, environments where data accuracy and uptime aren't optional.
What every project includes:
→ Clean RESTful endpoints with proper HTTP standards
→ JWT-based authentication and role-based access control
→ PostgreSQL or SQL Server database integration
→ Error handling and input validation
→ Postman collection or API documentation on delivery
→ Clean, commented code you can hand to any developer later
I work with non-technical founders and small business owners regularly so you'll always know what's being built and why, without needing a technical background to follow along.
Before work begins, I do a short discovery call to understand your requirements and confirm the right tier for your project.
I build secure, well-structured REST APIs for SaaS products, mobile apps, and internal business tools using Spring Boot and SQL. Whether you're launching an MVP or adding backend functionality to an existing product, I'll build an API that's clean, documented, and ready to scale.
In 3+ years of production development, I've built backend systems for healthcare platforms, logistics software, and point-of-sale systems, environments where data accuracy and uptime aren't optional.
What every project includes:
→ Clean RESTful endpoints with proper HTTP standards
→ JWT-based authentication and role-based access control
→ PostgreSQL or SQL Server database integration
→ Error handling and input validation
→ Postman collection or API documentation on delivery
→ Clean, commented code you can hand to any developer later
I work with non-technical founders and small business owners regularly so you'll always know what's being built and why, without needing a technical background to follow along.
Before work begins, I do a short discovery call to understand your requirements and confirm the right tier for your project.
Programming Languages
JavaCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$150
|
Standard
$350
|
Advanced
$700
|
|---|---|---|---|
| Delivery Time | 3 days | 10 days | 21 days |
Number of Revisions | 1 | 2 | 5 |
Number of Pages | 0 | ||
Design Customization | - | - | - |
Content Upload | - | ||
Responsive Design | - | - | - |
Source Code | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$100 - $300
Source Code
+$50Frequently asked questions
About Muhammad Sheraz
Full-Stack Web App & SaaS MVP Developer | Spring Boot + Angular | Java
Chakwal, Pakistan - 2:55 pm local time
Your app idea is stuck in your head because finding someone who can build the whole thing, not just half of it, is harder than it should be. Here's what working with me looks like: you describe what you need, I build it end-to-end, and you get a working product.
This might be a good fit if you are:
➡️ A SaaS founder who has a product idea but no technical co-founder, and needs someone to take it from zero to a working MVP, auth, roles, business logic, APIs, and a functional UI.
➡️ A small business owner whose team is drowning in manual work spreadsheets, WhatsApp messages, disconnected tools, and needs a proper internal system built.
➡️ Someone who has been burned by developers who only delivered "the backend part" and left you stuck.
After working with me, you will have:
➡️ A fully deployed, working web application, not a half-finished codebase handed off to someone else.
➡️ Clean APIs with documentation so any future developer can pick it up without calling me.
➡️ A system built to grow, not one you have to rebuild in 12 months when traffic or users increase.
This is probably not a good fit if you need a pixel-perfect marketing website or a mobile app. My focus is on functional web applications and SaaS products.
I am a backend-specialized full-stack developer with 3+ years of enterprise experience in Java, Spring Boot, PostgreSQL, and Angular. I have built systems in healthcare, logistics, and internal tooling. I take early Upwork projects seriously, you get someone motivated to deliver, not someone coasting.
Send me a message with what you are building. I will give you a straight answer on whether I can help.
Steps for completing your project
After purchasing the project, send requirements so Muhammad Sheraz can start the project.
Delivery time starts when Muhammad Sheraz receives requirements from you.
Muhammad Sheraz works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery Call
We schedule a short 15-20 minute call to walk through your requirements, clarify scope, and confirm the right tier for your project. No work begins until we're both aligned.
Architecture Planning
I map out your API structure, endpoints, database schema, authentication flow, and third-party integrations. I share this with you for approval before writing a single line of code.