You will get RESTful API Development & Authentication (JWT or OAuth2)
Project details
Build a Secure, Scalable Java Spring Boot Backend with RESTful APIs
I will develop a fully functional backend using Java and Spring Boot, delivering secure RESTful APIs tailored to your needs. Whether it’s authentication, CRUD operations, or database integration, I ensure clean code, solid architecture, and smooth frontend connectivity.
Perfect for web apps, admin dashboards, fintech, or e-commerce projects. I focus on maintainability, security (JWT/OAuth2), and performance. You’ll get API documentation, thorough testing, and deployment-ready code.
Let’s bring your backend vision to life with reliability and speed.
I will develop a fully functional backend using Java and Spring Boot, delivering secure RESTful APIs tailored to your needs. Whether it’s authentication, CRUD operations, or database integration, I ensure clean code, solid architecture, and smooth frontend connectivity.
Perfect for web apps, admin dashboards, fintech, or e-commerce projects. I focus on maintainability, security (JWT/OAuth2), and performance. You’ll get API documentation, thorough testing, and deployment-ready code.
Let’s bring your backend vision to life with reliability and speed.
Programming Languages
JavaCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$80
|
Standard
$120
|
Advanced
$500
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 14 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | - | - | - |
Content Upload | |||
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
About Leng
Spring Boot & Java Developer | JPA, PostgreSQL, JWT Security
Sihanoukville, Cambodia - 7:48 am local time
Hi! I’m a Java developer who loves turning complex backend problems into clean, efficient, and secure solutions.
If you need a rock-solid backend for your web application — I’m the person you call.
I’ve built everything from secure login systems and admin dashboards to full RESTful API backends that connect seamlessly with modern frontends.
🛠 My Toolbox:
Languages & Frameworks: Java, Spring Boot, Spring Security
Databases: PostgreSQL, MySQL, Spring Data JPA, Hibernate
Frontend Touch: HTML, CSS, Tailwind CSS, Vue.js, React.js (API integration)
Dev Tools: Git, Postman, Swagger, Maven, Docker (basic)
✨ What I Can Do for You:
Build secure authentication systems with JWT or OAuth2
Create fully functional CRUD APIs & backend logic
Design and integrate admin dashboards
Connect your frontend to a high-performance backend
Deploy and maintain your backend with smooth workflows
💬 Why Clients Like Working With Me:
I speak human, not just tech — you’ll always know what’s happening
I deliver clean, maintainable code that others can understand
I care about your project as if it were my own
If you’re looking for a developer who can make your backend secure, scalable, and future-proof, let’s make it happen. 🚀
Steps for completing your project
After purchasing the project, send requirements so Leng can start the project.
Delivery time starts when Leng receives requirements from you.
Leng works on your project following the steps below.
Revisions may occur after the delivery date.
Client sends project requirements
You provide detailed features, API specs, database info, and authentication needs.
Project development starts
I build the backend APIs, set up the database, and implement authentication.