I am an experienced Senior Software Developer with a strong background in healthcare, fintech, and IoT solutions. I led the development of a real-time medical benefit and pharmacy verification system, integrating XML data from TransUnion and JSON from Surescripts, and created APIs for medical and prescription benefit checks using Spring WS, Spring Batch, and Angular. I also worked on smart home solutions, including a smart door lock system using Node.js, React.js, and Firebase. In fintech, I played a key role in launching Nepal’s first wallet system, integrating multiple banks for money transfers and enabling bill payments, as well as transitioning monolithic architectures to microservices. I have hands-on experience with tools like Kafka, ActiveMQ, Jenkins, and Vault, and have managed CI/CD pipelines with Kubernetes and GitLab Runner. Additionally, I’ve implemented secure authentication protocols, including SSO solutions using Okta, Auth0, and Google Auth, and have led several successful offshore projects in healthcare, real estate, and IoT.
Java
Spring Boot
Spring Framework
Google Web Toolkit
AngularJS
Node.js
React
Spring Batch
Spring Security
ExpressJS
Pujan K.
Lalitpur, Nepal
$25/hr
4.6
51 jobs
I specialize in building secure, scalable, production-ready backend systems using Java, Spring Boot & microservices architecture for startups and enterprises.
Back-end technologies:
- Spring-framework, spring-security
- JPA/Hibernate + Spring-Data
- REST, GraphQL, and WebServices (Spring-Boot)
- Apache Kafka, Camel
- SQL, MySQL, PostgreSQL, MariaDB, MongoDB
- Maven/Gradle/Ant
Front-end technologies:
- Spring-MVC, Struts
- template engines: Thymeleaf, JSP/JSTL, GSP, Freemarker, Jtwig, Velocity
- JQuery and Bootstrap
- HTML5, CSS3, JavaScript
- Angular, React
SDLC
- Agile and Scrum programming methodology
- TDD using JUnit, Mockito, Karma (for UI)
- Eclipse, STS and Intellij IDEA
- Git, SVN, and CVS code repositories
- Maven, Ant, and Gradle build tools
- Jenkins and Bamboo CI servers
- Docker, Kubernetes
- Bash scripting, Server Administration
Cloud
- Amazon cloud deployment using EC2
- Amazon file sharing S3
- Amazon cloud database using RDS
- Amazon based messaging (SNS and SQS)
- Google cloud platform
- Heroku based could deployment
- VPS setup and administration
Java
Software Architecture & Design
Spring Framework
Web Development
Cloud Computing
RESTful Architecture
SQL
NoSQL Database
Apache Kafka
Test-Driven Development
Version Control
Microservice
Scripting
Code Review
Agile Project Management
Bash Programming
Jira
Prabin S.
Kathmandu, Nepal
$8/hr
5.0
11 jobs
I’ve successfully completed multiple projects on Upwork with 5-star⭐ ratings and positive client feedback. If you’re facing any kind of tech-related problem, I’m here to help.
I'm a Full-Stack AI Software Engineer specializing in building modern web applications and AI-powered solutions. I develop scalable, production-ready software using Java, Spring Boot, React, PostgreSQL, MongoDB, Supabase, MySQL, while integrating the latest AI technologies such as LLMs, RAG (Retrieval-Augmented Generation), AI Agents, and workflow automation.
Over the years, I have successfully designed and developed several full-stack and AI-powered applications, including:
✅Enterprise Multi-Tenant SaaS POS Application
✅Contractor Expert AI (RAG)
✅Expense Tracker
✅Food Delivery Web App
✅Smart Pharmacy Management System
✅Retail Billing Software
✅Trading Platform
✅Book Rental System
✅Hospital Management System
Technical Skills
✅ Languages: Java, JavaScript, Python
✅ AI & LLMs: OpenAI API, Gemini API, LLM Integration, RAG (Retrieval-Augmented Generation), AI Agents, Prompt Engineering, Workflow Automation
✅ Frameworks: Spring Boot, Spring MVC, Hibernate, React, Tailwind CSS
✅ Web Services: RESTful APIs
✅ Databases: MySQL, PostgreSQL, MongoDB
✅ Tools: VS Code, IntelliJ, Eclipse, Postman, Git/GitHub
✅ Frontend: HTML5, CSS3, JavaScript
✅ Practices: Git-based version control, Agile methodology, automated testing
I believe in clear, friendly communication to keep projects running smoothly and ensure we’re always aligned.
Let’s chat about your project and see how I can help bring it to life!
“Any fool can write code that a computer can understand. Good programmers write code that humans can understand.” – Martin Fowler
Java
Hibernate
Spring Boot
Spring Framework
Web Development
REST API
PostgreSQL
MySQL
NoSQL Database
JavaScript
React
Java Persistence API
Agile Software Development
AWS Lambda
Git
Ayush B.
Kathmandu, Nepal
$20/hr
5.0
18 jobs
Greetings! I'm Ayush Basnet, a proficient Java Developer with extensive experience in building secure, high-performance applications. With a solid background in Java, Spring Boot, and React, I have successfully delivered robust backend systems and dynamic frontend interfaces for a variety of industries, including healthcare and finance.
🌟 My Expertise Includes 🌟
✅ Java (8, 11 & 17): Extensive expertise utilizing recent Java features, including Lambdas, Stream APIs, DateTime APIs, and Functional Interfaces.
✅ Java EE Web: JSF, JSP, Thymeleaf.
✅ Struts : Struts 1 and Struts 2, Tiles
✅ Spring Frameworks: SpringBoot, Spring Core, Spring Batch, Spring Data, Spring Cloud
✅ Groovy, Grails
✅ SQL Databases: SQL Server, MySQL, PostgreSQL, MariaDB & Oracle
✅ NoSQL Databases: MongoDB & Redis
✅ AWS: IAM, EC2, S3, RDS, Lambda, etc.
✅ Message Broker: Kafka.
✅ Message Queues: ActiveMQ & RabbitMQ.
✅ Testing: JUnit, Spring Test, Mockito, Integration Test, Unit Test.
✅ Versioning: GIT, GITHub, BitBucket.
✅ DevOps: Docker, Kubernetes, Jenkins.
✅ IDEs : Eclipse Platform, NetBeans, IntelliJ IDEA
✅ Report Generation: Jasper Reports
✅ Familiar with : PHP, React Js, Splunk
I’m passionate about contributing to projects that demand innovation, security, and high performance. Whether you're looking to enhance the security of your applications, optimize performance, or build scalable solutions, I’m here to help you achieve your goals.
Let's connect and take your projects to the next level!
Java
Spring Boot
MySQL
PostgreSQL
RabbitMQ
JasperReports
Apache Struts 2
Apache Struts
React
Angular
Next.js
AI Development
Claude
AI Implementation
AI Code Generator
Generative AI Prompt
Generative AI Software
Brisha S.
Lalitpur, Nepal
$10/hr
5.0
3 jobs
I have completed Masters on Data Science and completed many data related projects which includes, mining, cleaning , analyzing and visualization.
I have a 7+ years of experience on Software development with the skills of JAVA.
Services:
Data Engineering - Scraping, Cleaning, Analysis, Visualization
Scraping - Beautifulsoup, Selenium, Scrapy
Database - Mysql, postgresSql
Frontend - HTML , CSS, JS, React JS,
Backend - JAVA, Python- Pandas, Django, numpy, R
Tools - Excel, Jupyter Notebook, Google Sheets,Google colab
Java
SQL
Python
PostgreSQL
HTML
Data Analysis
Data Visualization
pandas
SOAP
Bootstrap
Content Writing
React
Web Scraping
Data Engineering
RESTful API
API Development
Dilip Babu A.
Kathmandu, Nepal
$10/hr
5.0
2 jobs
Full-Stack Developer | Tech Enthusiast | Tech Innovator | Contractor
Java • React • React Native • Flutter • Next.js • Laravel • jQuery • MySQL • MVP Builder
Hi, I’m a Java Developer with extensive experience in software development, specializing in backend, and full-stack solutions. I build high-performance, scalable applications using Java, Spring Boot, and modern web technologies. My expertise covers RESTful API design, microservices architecture, and cloud-based solutions with Amazon Web Services (AWS) and Docker.
✔ Core Skills & Technologies:
I leverage a versatile tech stack to build scalable, secure, and high-performance applications, ensuring reliability and efficiency.
🟢 Programming Languages: Java, JavaScript, TypeScript, PHP – Used to develop enterprise applications, handling thousands of daily users.
🟢 Frameworks & Libraries: Java Spring Boot, Spring Framework, Hibernate, React, Next.js, jQuery – Optimized system performance, improving response times by 25%.
🟢 Database Management: MySQL, SQL, MongoDB – Designed and maintained databases processing over 10K+ transactions monthly.
🟢 Web & Application Development: Web Development, Java Development, Desktop Applications, Standalone Applications, enhancing client operations and user engagement.
🟢 DevOps & Deployment: Docker, Apache Tomcat, Git – Streamlined CI/CD pipelines, reducing deployment time by 30%.
🟢 Software Engineering: Software Architecture & Design, Software Development, Software Debugging – As a Java Developer I developed scalable solutions supporting 50K+ active users.
🟢 UI/UX: HTML CSS JavaScript, HTML5, CSS3 – Created responsive interfaces that increased user engagement by 20%.
🟢 Testing & Quality Assurance: JUnit, Software Testing – Reduced production issues by 40% through automated and manual testing.
🔧 My Toolkit
Frontend: React, Next.js (App + Pages Router), TailwindCSS, shadcn/ui, JSP
Backend: Java, PHP, PostgreSQL, MongoDB, MySQL
DevOps: Vercel, AWS (Lambda, S3, EC2), Azure, Docker, GitHub Actions
✅ Why Clients Work With Me
🟢 Problem-Solving Mindset: Writing clean, maintainable, and well-documented code for scalability
🟢 Client-Centric Approach: Aligning technology solutions with business goals
🟢 Agile Software Development: Iterative development, CI/CD pipelines, continuous integration
🟢 Performance & Security Focused: Optimized queries, security best practices
If you're looking for an experienced Java Developer, Senior Java Developer, Full Stack Developer, Java Spring developer, Javascript Developer, PHP Developer, Java developer India to build scalable, high-performance applications, let’s connect!🚀
Last updated: 23.12.2025
Java
Hibernate
Spring Boot
Web Development
JavaScript
PHP
API
Android
iOS
Mobile App Development
MySQL
Location-Based Service
Payment Gateway Integration
RESTful API
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