The two-second version: I'm an Atlassian Solutions Expert and Full Stack Developer with 11+ years turning complex Jira and Confluence chaos into clean, scalable operations, for everyone from scrappy startups to Fortune 50 giants. 👋 The longer, sit-down version: Great to meet you! I'm Saurabh Gupta. Most of my long-term clients come back to me for one simple reason: I make the complicated feel manageable. Whether that's a sprawling Jira architecture serving 50,000+ users, a Confluence migration pushing past 1TB, or a custom Forge app built from scratch. I've done it, and I've done it without keeping anyone up at night. Over the past decade, I've had the privilege of working deep inside some genuinely challenging environments. Among them: - Enterprise financial institutions (BNY Mellon, Bank of America, Bloomberg) - Fortune 50 and Fortune 500 companies navigating compliance and scale - Fast-growing startups that needed a solid Atlassian foundation from day one - Regulated industries where accessibility and 508 compliance weren't optional One project I'm particularly proud of: I architected a centralized vulnerability data warehouse for BNY Mellon that slashed security reporting cycles from over a week down to under two hours, powered by RabbitMQ for async messaging and custom Java fork-join pools for large-scale data processing. That kind of result, real, measurable and business-changing, is what I'm here for. What makes my work a little different from most Atlassian consultants: I don't just configure your tools, I build inside them. I develop custom Atlassian Forge apps, Java-based plugins, and Marketplace-ready add-ons, which means when your off-the-shelf options run out, I'm just getting started. That rare combination of deep Atlassian administration and full-stack engineering (Forge, Java, RabbitMQ, React, Node.js) is what lets me solve problems others simply hand back. When you work with me, here's what you get: - A partner who listens first and builds second - Solutions that are clean, documented, and built to last (not duct-taped together) - Honest timelines, no surprises, and clear communication throughout Deep expertise across Jira, Confluence, Jira Service Management, Forge app development, Java plugin engineering, automation, migrations, and compliance I also founded Vamhi, where I've published several Atlassian Marketplace plugins. So I understand your ecosystem not just as an admin, but as a builder who has shipped production-grade tools into it and knows exactly what it takes to get them there. My aim is always long-term partnerships. The kind where you stop worrying about your Atlassian environment because you know it's in good hands. If that sounds like what you're looking for, I'd genuinely love to connect. Drop me a message, even if your situation doesn't fit neatly into a category above. Complex and unusual is honestly where I do my best work. Cheers, Saurabh P.S. If you're dealing with a gnarly migration, a compliance deadline, a Forge app you need built right, or an automation problem that has stumped everyone else, those are my favorite kinds of conversations. Don't hesitate to reach out.

Oracle Certified Professional Java Developer, Spring Boot developer, Full stack developer & solutions provider. Are you looking for all-inclusive, reliable microservices and responsive web app development? Or a full-stack developer who fully understands and fulfills your unique requirements with custom solutions? Do you have time or other constraints that prevent you from hiring full-time, in-house specialists for your project? Don’t worry! You’ve found the right person. I am Salman, a Full-Stack Microservices and Responsive Web developer with over 12 years of developing, implementing, and maintaining high-quality & customized backend and web-based software solutions across various industry sectors. I’m always willing to go above and beyond and make myself available, to answer queries, provide quick fixes or status updates, and meet tight deadlines. I have experience with: ✅ Java, Java Core, Java EE ✅ Spring Boot, Spring MVC ✅ Spring Boot Data, Spring JPA Data ✅ Spring Security ✅ Apache Struts ✅ Microservices ✅ RestAPI / Restful API Development ✅ OpenAPI/Swagger, Postman ✅ API Integration ✅ JPA, Hibernate ORM ✅ Java Concurrency ✅ Relational Database (RDBMS): MySQL, MSSQL Server, PostgreSQL, IBM DB2 ✅NoSQL Databases: MongoDB, AWS Dynamo DB ✅ Container Orchestration: Kubernetes, Helm Chart ✅ DevOps Skills: CI/CD, Kubernetes, Helm charts, Docker, Github Actions, GitHub, Ansible ✅Cloud Experience: GCP, AWS, AWS SDK ✅ JSP / Java Server Pages ✅ JSF / Java Server Faces / Jakarta Server Faces ✅ Thymleaf ✅ React JS, Bootstrap, Material CSS, HTML, CSS, Javascript, JQuery 🌟 WHY CHOOSE ME OVER OTHER FREELANCERS? 🌟 ✅ Quality-Oriented: I focus on providing VALUE to all of my Clients and Earning their TRUST. Delivering with quality is the key to gaining trust, and that's where I put my core focus. ✅ Over-Delivering: This is core to my work as a Freelancer. My focus is on GIVING more than what I expect to RECEIVE. I take pride in leaving all of my Clients saying "WOW." ✅ Adaptive to changes: During Software Development Lifecycle, it is highly likely some changes might be needed. I understand this and open to any changes. The end goal is to make my client achieve his target, and the objective is to make his/her business more profitable. ✅ Responsiveness: Being extremely responsive and keeping all lines of communication readily open with my Clients. ✅ Respect: Self-respect is everyone's right. I belong and thrive in a work culture where everyone's self-respect is of utmost importance. Maintaining relations with my clients to boost their self-respect is one of the core offerings that I can offer here. Have any questions? Want to discuss your project? Or do you want to get advice? Drop me a message, and we will have a quick call to understand your requirements so that to help you 100% according to your desires :)

I have worked on iOS, Android, Web apps for tech giants like AT&T, Verizon, Univision, NBC, MySpace, Letsintern, AMCAT & more. HIGHLIGHT - I also completed 5 SUCCESSFUL projects with 'Government Of India' & 'European Union'. Areas of Specialization : - iOS/Apple Mobile Application Development - Swift & Objective C - Android/Google Mobile Application Development - Java & Kotlin - RESTful API Development (Web-services) - PHP (Laravel) & Node.js - Front end/UI Developement - HTML, CSS, Bootstrap, JS & Angular 6 years of solid experience on developing quality apps with extreme focus on UI/UX and scalability with clean architecture.

Senior Java & Kotlin Developer with 15+ Years of Experience. Are you struggling with an unstable, slow, or hard-to-scale Java backend? I help startups and growing businesses design and build reliable, scalable, and secure Java backend systems using Spring Boot and microservices, so you can focus on your product, not backend issues. With 15+ years of hands-on experience, I've delivered production-ready back-end solutions for startups and enterprise clients. ⭐ I specialize in: • Backend Engineering: Microservices & Monoliths, REST API Design, SOA. • Frontend Engineering: React.js, Next.js, Redux, TypeScript, HTML5, CSS3, JS (ES6+), Tailwind CSS, Material UI, Responsive Design, SEO & Performance Optimization. • Cloud & DevOps: AWS, GCP, Azure | Kubernetes, Docker, CI/CD (Jenkins, GitLab-CI). • Performance & Scalability: Building horizontally scalable, high-availability systems. • Domains: FinTech, Security, Automotive, Utilities. • Tech Stack: Java, Python, Spring (Boot, Cloud, Data), Hibernate. • Data & Messaging: PostgreSQL, MySQL | MongoDB, Neo4j, Redis | RabbitMQ, Kafka, SQS. ✅ What I deliver: • End-to-End Development: From architecture design and greenfield development to refactoring and performance optimization of legacy systems. • Cloud-Native Solutions: Scalable applications leveraging AWS, GCP, or Azure ecosystems. • Reliable & Maintainable Code: Clean architecture, comprehensive testing, and CI/CD pipelines. • Problem Solving: Focus on understanding your core business pain to build solutions that drive growth and efficiency. 🛠 Let's Build a Great Project Together. I am eager to discuss your project and how I can help you achieve your technical and business goals with reliable, high-quality solutions. Contact me today to start the conversation.

🏅 Top Rated Plus Freelancer 🕒 1400+ hours on Upwork ✅ 100% Job Success Score I am a results-oriented bilingual with 12+ years of experience professional who is willing to work with clients worldwide. In my case, I am open to working with startup companies, small businesses, and even multi-national firms. I am deeply involved in all my projects from start to finish. I listen to my clients attentively and provide them a vision for what they want, and then I collaborate with them to create and execute a plan of action. I continuously offer my clients the pros and cons of each choice they make and convey my recommendations for their selections. I would like to give quick short profile summary as below Skills ---------------------------------------------------------------------------------------- • 11+ Years of IT Experience relevant to Java with BFSI domain like Banking & Insurance • Core skills SpringBoot, RESTful webservices, Microservices, JPA • Experience in Unit Testing with JUnit5, Mock/Mockito • Good experience with working on front end applications using JavaScript, JQuery and Bootstrap. • Strong experience with Agile or Scrum methodologies. • Good communicator in English • Experience with SQL Databases (e.g. Oracle) • Strong experience with GIT/BitBucket, JIRA, Jenkins, Confluence, Docker. • Good experience working with Tomcat, Jboss, WildFly • Experience working on Cloud technologies (AWS) • Experience using Apache Solr • Good Experience developing unit / integration test cases using Junit /TestNg. • Experience in Integration, Component and End-to-End Testing • Knowledge of Behavior Driven Development (BDD) for automated acceptance tests • Good ability to understand and work with code developed by other developers. • Very comfortable to work independently with minimal supervision Why me? -------------------------------------------------------------------------------------------- -Provide High Quality Services -Delivers Bug Free Code -Good Listener and Great Communication Skill. -Uses Latest technology for Development. Services I provide ---------------------------------------------------------------------------------------- *Software Development *Web application, Development & Maintenance *Creating Template and Reports *Finding Bug and Resolve. *Solve Programming Problems. I would be happy if employed by you and will work to the best of my ability.

📣 Hello, and welcome! I'm a Senior Software developer with 6 years of commercial experience in Java, Springboot, React, Next.js, React Native, Node.js, Nest.js, and Express.js. I'm oriented on results, motivated, and responsible developer with good analytical skills and attention to detail. I'm well-versed in software development, data structures, algorithms, and object-oriented design principles. I'm skilled in utilizing various tools and technologies. Quick learner. Also, I am an active team player who wants to deliver high-quality work and continue expanding my knowledge and skills in software development. I would be happy to work with E-commerce, Fintech, HealthTech, Blockchain, EdTech, PropTech, CRM, TravelTech, InsurTech, LogistecsTech, and Gambling projects. 📌WHAT I'M OFFER: 💻WEB DEVELOPMENT I'm delivering high-performance, responsive web applications. I specialize in building modern front-end interfaces using React.js and Next.js while handling robust backend systems with Node.js, Express.js, and Nest.js. Full-stack capabilities allow me to craft seamless, end-to-end solutions, from user interfaces to database management. 💻 API DEVELOPMENT & INTEGRATION Design and develop custom RESTful APIs and GraphQL endpoints to connect applications. I integrate third-party services like Stripe, Twilio, Google Maps API, and more, ensuring seamless communication between platforms. I also implement secure authentication and authorization systems using JWT, OAuth, or custom protocols. 💻 ENTERPRISE SOLUTIONS (JAVA) I'm building scalable enterprise applications with Spring Boot or lightweight FastAPI solutions for startups. Develop and deploy microservices architectures, automate workflows, and integrate powerful tools like Kafka and RabbitMQ for real-time processing. 💻 REAL-TIME & eCommerce SOLUTIONS I'm developing real-time applications such as chat apps, live notifications, and streaming platforms using WebSockets. Build custom eCommerce platforms with payment integrations like Stripe, PayPal, and others, providing features like cart management, inventory tracking, and order processing. 💻 CLOUD & DevOps I'm deploying and managing scalable applications on cloud platforms like AWS, Google Cloud, Azure, Heroku, and Vercel. I handle CI/CD pipelines for automated testing and deployment, leveraging Docker and Kubernetes for containerized environments. 💻 DATA-DRIVEN APPLICATIONS I'm creating interactive data dashboards using React tools. I automate data pipelines and web scraping tasks with pandas, NumPy, Scrapy, and Selenium. I also integrate machine learning models into applications for advanced analytics and predictions. 📌 My Javascript Front-end skills: Javascript, Typescript, React.js, Next.js, React Native (CLI/Expo), TailwindCSS, Material UI, Ant Design, SCSS, HTML5, CSS3, Redux Thunk, Redux Saga, Chakra UI, Bootstrap. 📌 My Javascript Back-end skills: Node.js, Nest.js, Express.js, Jest, Fastify, GraphQL, Docker. 📌 My Java skills: Java21, Spring (Boot, Core, MVC, Security, Data, Cloud, Javamail), Concurrency, SOLID, OOP, JakartaEE, JSP, Tomcat, Thymeleaf, JUnit, Mockito, Maven, Gradle. Docker, Lombok 📌 My Database skills: Hibernate, JDBC, Liquibase, SQL, NoSQL, PostgreSQL, MySQL, Objection, Knex, Prisma, MongoDB. 📌Other skills: Stripe, Firebase, Mapbox, GoogleMap, Google Analytics, Google Cloud, KuCoin API, OAuth2, WordPress, AWS. 📌API Tools: Swagger, Postman 📌KEYWORDS: JavaScript, Firebase, Vue.js, Angular, Svelte, D3.js, Chart.js, Three.js, PostgreSQL, React.js, Python, Spring Boot, Docker, Redis, Google Analytics, Kubernetes, Next.js, NumPy, Tailwind CSS, Google Maps API, TensorFlow, AWS S3, JPA, Redux, Material-UI, Selenium, MongoDB, Django, Stripe, Node.js, Jupyter Notebooks, OpenCV, Vercel, Cloudflare, React Native, Celery, ElasticSearch, Hibernate, Express.js, PyTorch, Twilio, Nest.js, pandas, RabbitMQ, Spring Framework, Pipedrive, Google Cloud, GraphQL, scikit-learn, MUI, Azure Functions, Jenkins, Ansible, RESTful APIs, Heroku, Kafka, JSP, OpenAPI, FastAPI, Bitbucket, Gradle, Tomcat, SendGrid, Chakra UI, WebSockets, Java EE, Apache Spark, Servlets, Storybook, Maven, JUnit, SQLite, Scrapy, SQLAlchemy, Apache Kafka, PayPal, Azure DevOps, Microservices, Terraform, Electron.js, Webpack, Babel, ESLint, Vite, Jest, Cypress, Puppeteer, Mocha, Jasmine, Lodash, RxJS, Immutable.js.

Hello, I'm a full stack developer with a deep love for clean code, clear logic and build things. Over the past few years, I've worked on everything from responsiveweb applications in React to backend services in Python (Django/Flask) and Java (Spring Boot). I'm confident with : React.js, Node.js, Express, MongoDB Java(Spring Boot) and Python (Django, Flask) Git, Docker, PostgreSQL, FireBase What you'll get from me: Clear Communication Reliable, on time delivery Code you won't be afriad to read Let's turn your ideas into working software!

✅ Spring, Spring Boot, Spring Cloud, Spring Security ✅ AI/ML Tools: TensorFlow, PyTorch, scikit-learn, OpenAI, LangChain ✅ Hibernate, JPA, JDBC ✅ PostgreSQL, Oracle, MySql, MongoDB, Flyway, Liquibase, Redis, Athena, Hazelcast ✅ REST API, SOAP, gRPC, GraphQL ✅ Kafka, RabbitMQ, ActiveMQ, Artemis, AWS SQS ✅ Keycloak, Apache Camel ✅ Microservices architecture: API Gateway, Service discovery (kubernetes), configuration, etc. ✅AWS Services ✅Kubernetes, Docker ✅Elastic Search, Apache Solr ✅Angular, ReactJS ✅Kotlin ✅Apache POI I am a Java professional with 11 years of experience. I have strong understanding and knowledge of the object-oriented approach, software engineering principles, and concepts. I have an incredible attention to detail and perseverance in getting the job done, and done it well. Over the last few years, I have built many AI systems across industries. - Real production systems with users, revenue, workflows, and business impact. We specialize in building AI systems that are: → Enterprise-grade → Multi-tenant → Scalable → Secure → Integrated into real business operations → Built for ROI, not experimentation

As a Backend Engineer with 3+ years of experience, I specialize in building scalable, secure, and high-performance applications using Java Spring Boot and Node.js. Recently, I’ve been part of a major project for the Egyptian government, developing a Correspondence Management System with advanced AI features for document processing and natural language database queries. Why Choose Me? - Robust APIs & Microservices – I build RESTful APIs and event-driven microservices with Spring Boot, Express.js, Kafka, and Redis. - Optimized Databases – I design and tune schemas in PostgreSQL, MySQL, MongoDB, and Elasticsearch for maximum efficiency. - AI-Powered Features – Integrated OCR (OCRmyPDF, Tesseract) and Chatbot with Text-to-SQL, making document handling and database access smarter and faster. - Real-Time Systems – Deliver chat, notifications, and live updates using Kafka, WebSockets, and Redis. - Cloud & Deployment – Deploy secure, containerized applications with Docker, Nginx, and platforms like AWS and DigitalOcean. - Secure Authentication – Implement JWT, Keycloak, and Spring Security for robust authentication and authorization. Key Highlights - Government Correspondence Management System (Spring Boot + AI): Integrated OCR and chatbot features for automated document processing and text-to-SQL database querying. - Social Network Platform (Spring Boot, Kafka, PostgreSQL): Posts, comments, likes, and multimedia sharing. - Search Engine (Spring Boot, Kafka, Elasticsearch): Fuzzy search and suggestion system. - Real-Time Chat App (MERN + Socketio): Private and group messaging with instant notifications. - Multi-Author Blog (MERN): Role-based publishing and content management. Services I Offer - Backend API Development (Spring Boot, Nodejs, Expressjs) - AI Integration (OCR, Chatbots, Text-to-SQL) - Microservices Architecture & Deployment (Docker, Kubernetes) - Database Design & Optimization (SQL & NoSQL) - Real-Time Communication Systems (Kafka, WebSockets, Redis) - Secure Authentication & Authorization (JWT, Keycloak, Spring Security) - Cloud Deployment (AWS, DigitalOcean, Docker, Nginx) Why Clients Trust Me - I deliver clean, tested, and production-ready solutions. - I apply OOP, SOLID principles, and software architecture best practices. - I communicate clearly, meet deadlines, and focus on results that matter. Let’s Collaborate! Whether you need to launch an MVP, scale a backend system, or integrate AI-powered features into your product, I can help you design backend solutions that are reliable, secure, and ready for growth.

Most AI projects never make it to production. They look great in demos, break under real data, and cost businesses months of wasted budget. I fix that. I am a Principal Java Engineer with 12 years building AI and FinTech systems that process millions of transactions in production. Not prototypes. Not demos. Real systems that generate real revenue. 𝙒𝙝𝙖𝙩 𝙄 𝙗𝙪𝙞𝙡𝙙 𝙛𝙤𝙧 𝙮𝙤𝙪: AI Agents and LLM Integration connected to your real data, not static prompts FinTech Backend Systems payment pipelines, fraud detection, real time processing Java and Spring Boot Architecture clean, scalable, microservices that last RAG and NLP Pipelines intelligent systems that evaluate, decide, and act Kafka and Event Driven Systems high volume data flows that never break 𝙍𝙚𝙖𝙡 𝙧𝙚𝙨𝙪𝙡𝙩𝙨 𝙄 𝙝𝙖𝙫𝙚 𝙙𝙚𝙡𝙞𝙫𝙚𝙧𝙚𝙙: Built AI evaluation engine that automated thousands of call center audits weekly replacing months of manual work Delivered real time fraud detection pipeline processing millions of card transactions daily Designed ISO-8583 payment infrastructure as Issuer and Processor used by global FinTech clients Reduced manual workflows by building AI driven automation systems across enterprise platforms 𝙃𝙤𝙬 𝙄 𝙬𝙤𝙧𝙠: I start with clear architecture so there are no surprises mid project I deliver working builds weekly so you always know where things stand I build for production from day one including testing, monitoring, and scaling 𝙏𝙚𝙘𝙝 𝙎𝙩𝙖𝙘𝙠: Java Spring Boot Spring AI Python Django AI Agents LLM Integration RAG OpenAI BERT RASA Kafka REST APIs AWS Docker Kubernetes PostgreSQL MySQL MongoDB Redis React Jenkins Git If you are building an AI or FinTech system and need it to actually work in production, let us talk. Send me a message and I will tell you exactly how I would approach your project.