You will get expert Java development, bug fixing, and application support ✅

Project details
Looking to build, enhance, or troubleshoot a Java application? As a seasoned Java developer, I help businesses deliver scalable, secure, and high-performance software solutions using Java, Spring Boot, Microservices, and modern cloud-native technologies.
Whether you need bug fixes, new feature development, API integrations, application modernization, or a complete microservices solution, I provide reliable and maintainable solutions tailored to your requirements.
💼 Services Offered:
✔️ Java Application Development & Maintenance
✔️ Spring Boot Development
✔️ Microservices Design & Implementation
✔️ REST API Development & Integration
✔️ Bug Fixing & Production Issue Resolution
✔️ Performance Optimization & Code Refactoring
✔️ Database Integration (MySQL, PostgreSQL, MongoDB, SQL Server)
✔️ Third-Party API Integration
✔️ Architecture Review & Technical Consulting
✔️ Legacy Application Modernization
Expect clean code, scalable architecture, clear communication, and enterprise-grade best practices. Whether you're a startup or an established business, I can help turn your requirements into a reliable, future-ready Java solution.
📩 Let's discuss your project today1
Whether you need bug fixes, new feature development, API integrations, application modernization, or a complete microservices solution, I provide reliable and maintainable solutions tailored to your requirements.
💼 Services Offered:
✔️ Java Application Development & Maintenance
✔️ Spring Boot Development
✔️ Microservices Design & Implementation
✔️ REST API Development & Integration
✔️ Bug Fixing & Production Issue Resolution
✔️ Performance Optimization & Code Refactoring
✔️ Database Integration (MySQL, PostgreSQL, MongoDB, SQL Server)
✔️ Third-Party API Integration
✔️ Architecture Review & Technical Consulting
✔️ Legacy Application Modernization
Expect clean code, scalable architecture, clear communication, and enterprise-grade best practices. Whether you're a startup or an established business, I can help turn your requirements into a reliable, future-ready Java solution.
📩 Let's discuss your project today1
Programming Languages
HTML & CSS, JavaCoding Expertise
Cross Browser & Device Compatibility, Localization, Performance OptimizationWhat's included
| Service Tiers |
Starter
$15
|
Standard
$45
|
Advanced
$100
|
|---|---|---|---|
| Delivery Time | 3 days | 2 days | 1 day |
Number of Revisions | 3 | 9 | Unlimited |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
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MH
Matt H.
Aug 16, 2026
Shopify customization
HK
Harleen K.
Feb 9, 2022
Angular sprinboot with elastic search
Rajan delivered end product on time. He is proficient at his work and accepts new challenges and delivers the work. Well qualified and skilled professional.
DM
Daniel M.
Oct 14, 2020
Searching for Skilled Web Programmer - CSS and PHP - WordPress Websites
MK
Manat K.
Nov 22, 2017
WooCommerce Customization Job for Rajan Ahir.
Superb Freelancer. One of the best freelancer we have worked with in Upwork. Did an excellent job and delivered the project as the we wanted. Already started second project with him. Highly recommended.
mh
matthew h.
Jun 6, 2016
Wordpress fix
About RAJAN
Full Stack Developer - Java, Spring Boot, Angular and PHP
100%
Job Success
Toronto, Canada - 5:17 pm local time
I have successfully completed more than 100 web-projects with 100 percent client satisfactions.
Working on Spring Boot, Java, PHP, Angular 2, HMTL/XHTML, Ag-Grid, Magneto, WordPress any many more.
Open to new web projects projects.
Looking forward you work on your projects!
Steps for completing your project
After purchasing the project, send requirements so RAJAN can start the project.
Delivery time starts when RAJAN receives requirements from you.
RAJAN works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Understanding + Development
In this step I will need some details to understand the requirement fully and work on the task.
Review the task
In this part you can check the task completed and if any update or modifications required.
