You will get build a custom Java based ERP or CRM system
Top Rated
Project details
I'll build you a custom ERP or CRM system in Java using Spring Boot, Hibernate, and MySQL — tailored to how your business actually operates instead of forcing you into a generic template. With 14+ years of experience building production Java systems, I design a clean database schema, implement modules like contacts, leads, inventory, and invoicing, and add role-based access control so different teams see only what they need. You'll get a well-tested, documented, and deployable system with clear source code, plus guidance on how to extend it as your business grows. Just tell me your workflows and pain points, and I'll turn them into a working system.
Programming Languages
JavaWhat's included
| Service Tiers |
Starter
$150
|
Standard
$400
|
Advanced
$800
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 25 days |
Number of Revisions | 1 | 3 | Unlimited |
Design Customization | - | ||
Content Upload | - | - | - |
Responsive Design | - | - | |
Source Code |
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TG
Thomas G.
Aug 8, 2026
Java File Compare App
Working with SPS has been a genuinely good experience. He enhanced our property File Compare app and treated it like his own product rather than just a set of tickets — he asked the right questions, suggested improvements we hadn't thought of, and was consistently responsive.
He's a strong Java/Spring developer, but what I'd really highlight is his reliability and communication. You always know where things stand.
5 stars, no hesitation. I'd recommend him to anyone looking for a serious backend engineer.
He's a strong Java/Spring developer, but what I'd really highlight is his reliability and communication. You always know where things stand.
5 stars, no hesitation. I'd recommend him to anyone looking for a serious backend engineer.
JT
Jen T.
Aug 7, 2026
Java Project
JD
John D.
Aug 6, 2026
Spring Boot Backend Developer
Very skilled Java developer. Sumit was extremely thorough and a pleasure to work with. Highly reccomended!
SK
Sana K.
May 18, 2026
Java Spring Boot Backend Fix and Deployment with AWS
Singh is a hard worker. Appreciate his patience and support on this project.
NH
NARENDRA H.
Dec 18, 2023
Small Java program for calling api
Sunit is good at his work and completed our project in a very short time . Would recommend him highly and we ll work with him if we have any more projects in java
About SP
Java Spring Boot Developer | Full stack Java development | Spring AI
100%
Job Success
Gorakhpur, India - 5:34 am local time
As a senior Java Spring Boot Developer, I help businesses build high-performance, cloud-native applications using Java Spring Boot, microservices architecture, and modern engineering practices. Whether you need a Spring Boot developer, a backend architect, or a hands-on Java developer, I bring both technical depth and product thinking.
I specialize as a Java Spring Boot Developer in building modular, scalable, and cloud-ready systems. As a Spring Boot developer, I design clean architectures for Java microservices, real-time systems with Kafka or RabbitMQ, and high-load applications. As a Java developer, I ensure systems are maintainable, testable, and optimized for long-term growth.
Working as a Java Spring Boot Developer, I frequently collaborate with frontend teams using Spring Boot React and Spring Boot Angular stacks. As a Spring Boot developer, I align backend logic with frontend needs, ensuring smooth integration across JavaScript, HTML CSS JavaScript, and UI layers. My experience as a Java developer also includes working with JavaFX interfaces when needed.
Cloud is a key part of my work as a Java Spring Boot Developer. I’ve deployed scalable systems on AWS and GCP, acting as both AWS and GCP architect. As a Java developer, I work with AWS DevOps tools like Lambda, API Gateway, Cognito, S3, and EC2. As a Spring Boot developer, I integrate backend services with GCP tools such as Firestore, Pub/Sub, and Cloud Functions, ensuring performance and reliability.
Databases are another strong area. As a Java developer, I’ve worked with PostgreSQL, MySQL, SQL Server, Oracle, MongoDB, and Cassandra. As a Spring Boot developer, I design efficient schemas, optimize queries, and handle large-scale data systems. Every Java Spring Boot Developer project I take on includes a strong focus on database performance and scalability.
Clean code and testing are essential in my workflow as a Java Spring Boot Developer. I rely on JUnit testing, TDD, and CI/CD pipelines. As a Java developer, I use Maven, Docker, GitHub Actions, and Jenkins to ensure stable delivery. As a Spring Boot developer, I focus on building systems that are reliable, testable, and easy to extend.
📊 Snapshot of My Expertise
💻 Delivered 20+ systems as a Java Spring Boot Developer, including fintech platforms and SaaS applications
☁️ Worked as a Java Spring Boot Developer and cloud architect using AWS and GCP infrastructure
📊 Optimized large-scale databases as a Java developer, improving performance by up to 60%
🔁 Built intelligent systems integrating Spring AI as a Spring Boot developer
🔐 Secured APIs using OAuth2 and Hibernate as a Java Spring Boot Developer
🧪 Maintained high test coverage using JUnit and CI pipelines as a Java developer
🧰 Collaborated across teams delivering full features as a Spring Boot developer
If you’re looking for a Java Spring Boot Developer, a reliable Java developer, or an experienced Spring Boot developer who can handle complex systems and deliver scalable solutions I’m ready to help.
📩 Send me a message I usually reply within a few hours.
Steps for completing your project
After purchasing the project, send requirements so SP can start the project.
Delivery time starts when SP receives requirements from you.
SP works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements & Data Modeling
I review your workflows and design the database schema for contacts, leads, inventory, and other modules using Hibernate and MySQL.
Core Development
I build the Spring Boot backend and modules (contacts, leads, inventory, invoicing) with role-based access control.