Hire the Best Spring Integration Freelancers
in India

I'm "Anshul Kumar Sharma," an "M.Tech-qualified Enterprise Java Architect and Full-Stack Developer" with "10+ years of experience" designing and building secure, scalable enterprise software. As the founder of "Amstech Incorporation Pvt. Ltd.", I lead a team of experienced Java, Angular, Mobile, QA, UI/UX, and DevOps engineers, enabling us to deliver complete end-to-end software solutions for startups, enterprises, educational institutions, and government organizations. I am also ready to work as a CTO for another organization. Expertise * Java, Spring Boot, Hibernate, Spring Security * Microservices, REST APIs, Kafka * Angular, TypeScript, JavaScript * AWS, Azure, Docker, Kubernetes * MySQL, Oracle, MongoDB What I Bring * 10+ years of enterprise software development * Java, Spring Boot, Microservices & Angular specialist * Enterprise Solution Architecture & Cloud Deployments * Scalable applications supporting "100,000+ daily users" * Secure role-based enterprise applications * API integrations, cloud-native applications, and digital transformation Industries Served * Defence * Government * Higher Education * Enterprise Business * SaaS Products * International Clients across 11+ countries I believe successful software is not just about writing code—it's about understanding business requirements, designing scalable architecture, and delivering solutions that continue to evolve with user needs. Whether you need an individual solution architect or a complete development team through "Amstech", I'm ready to help transform your idea into a reliable, production-ready product. Let's build something exceptional and lovable together. Thanks and regards, Anshul Kumar Sharma T

🏆 Ex-Intel Engineer 🏆 Top-Rated on Upwrok(Top 10% developer) ✔Clean coder ✔11+yrs Experience ✔Problem Solver If you are looking for someone for pure development with agile methodology, reusable and clean code, and secure applications with Java? Then you are at the right profile :) A seasoned Java/J2EE developer/architect with about 11+ years of experience in helping enterprises to modernize their legacy applications as well as building scalable and secure enterprise-grade applications. My main focus when I am working with my clients is satisfaction. I understand very well that if my client can't add value to their business by working with me, they can't pay me. I specialise in Back-end Java Development, Database design, Web crawlers, Creating architecture for Java/J2EE web applications, Microservices with Spring boot, Distributed Systems with AWS stack. ✅ AWS Cloud: API Gateway, AWS Lambada, EC2, Cloudfront, Opensearch, DynamoDB, RDS, S3, SNS ✅ Backend development: Java, Spring Boot, Hibernate, JPA, Microservices, EJB, RabbitMQ, Kafka, Jasperreports, Tomcat, Design patterns ✅Frontend development: Angular, Angular material, Typescript ✅ Database: PostgreSQL, MySQL, SQL Server, Mongo DB, Elastic Search ✅ Big data: ETL, Trino, Debezium ✅ Build/Deploy: Maven, Gradle, GIT, SVN, Terraform, Jenkins I am also B2 level in English and have effectively worked remotely with geographically distributed teams. Lets connect.

I am a qualified Software Engineer and have more than 12+ years of experience in Software Development. From Rest API to AI (Watson) to Cloudant and MongoDB with Replica, I have developed many cross-platform applications from scratch to implementation. What I can do for you: → Desktop and Web Application Development → Rest API using Spring Framework → Android Application → Angular Application → Ionic Application for Android and iOS → React Native Application → AWS EC2 Setup, AWS CodeBuild, AWS CodeDeploy, AWS CI/CD pipeline → Azure CI/CD pipeline → IBM Watson Integration - NLU, Language Translator, Speech to Text, Text to Speech → Payment Gateway Integration - PayPal, Stripe Skills: → Java, SpringBoot, Hibernate, JavaFX, Spring Cloud → Angular, Ionic, React Native, ReactJS, Typescript → MongoDB, MySql, Firebase, postgresql → Maven, Gradle → Android → git → RESTful Web Services For the last one and half years, I have been developing and implementing a web portal involving Online ordering, product catalog, inventory, accounts, CRM, customized order, POS, Scheduling, Billing, Booking, customized ordering, stocks, Admin Panel. Using Java, Node JS, React Native, Angular JS, FCM, Stripe, PayPal, etc. Apart from this, my significant achievement is the API development of CogAbility and CogUniversity involving IBM Watson using AI and Machine Learning. I am looking for opportunities to develop or enhance applications, online portals. In addition, I am also available to provide support and enhancement in existing and ongoing projects.

I’m a Senior Java Backend Engineer with over 14 years of experience building mission-critical systems in fintech, with a strong focus on payments, lending platforms, and core banking solutions. I specialize in Java and Spring Boot, and design backend systems that are secure, scalable, and capable of handling high-volume financial transactions with consistency and reliability. I’ve worked on systems involving payment processing, transaction workflows, loan management, and integrations with external financial services and APIs. This includes designing and building robust microservices architectures that support real-time and asynchronous processing, ensuring data accuracy, fault tolerance, and seamless service communication. I understand the importance of idempotency, transaction integrity, and failure handling in financial systems where even minor inconsistencies can have significant impact. Security and compliance are central to my approach. I have strong experience implementing secure authentication and authorization using Spring Security, token-based systems, and role-based access control. I build APIs and backend services that align with financial industry expectations around data protection, auditability, and reliability. From a technical standpoint, I bring deep expertise in Spring Boot, microservices, REST API design, JPA/Hibernate, and relational databases like MySQL and PostgreSQL. I’m comfortable designing systems from scratch as well as improving and scaling existing platforms, optimizing performance, and ensuring stability under load. I also have hands-on experience with AWS and Google Cloud, and have worked on deploying and managing backend systems in cloud environments. I understand how to design cloud-ready architectures, implement CI/CD pipelines, and ensure systems are resilient, observable, and production-ready. What sets me apart is my ability to think beyond just implementation. In fintech systems, correctness, reliability, and long-term maintainability matter more than quick fixes. I focus on building clean, well-structured systems that not only meet current requirements but are also prepared for future scale, regulatory needs, and product evolution. If you’re building or scaling a payments platform, lending system, or core banking backend and need someone who understands both the technical and domain challenges, I’d be glad to contribute.

Hi, I’m a Senior Full Stack Developer with 8+ years of experience building scalable, secure, and high-performance web applications. I specialize in Java, Spring Boot, React, Angular, AWS, and modern cloud-native architectures, helping businesses transform ideas into reliable, production-ready software. Over the years, I’ve delivered enterprise applications across healthcare, finance, and business automation domains. My expertise spans backend development, modern frontend frameworks, cloud deployment, API integrations, and system architecture. Core Skills • Java, Spring Boot, Hibernate, JPA • React, Angular, TypeScript, JavaScript • REST APIs, Microservices, GraphQL • AWS (Cognito, EC2, S3), Docker, Kubernetes • MySQL, PostgreSQL • Spring Security, OAuth2, JWT Authentication • AI/LLM Integrations & Workflow Automation (n8n) • Xero, Sage & Third-Party API Integrations I have extensive experience designing scalable REST APIs, modernizing legacy applications, integrating cloud services, and building secure authentication systems. I’ve also led engineering teams, mentored developers, conducted code reviews, and driven technical decisions for enterprise-scale projects. I focus on writing clean, maintainable code, communicating clearly, and delivering high-quality solutions on time. Whether you need a complete full-stack application, backend APIs, frontend development, cloud integration, or ongoing technical leadership, I’m ready to help.

If you’re looking for a Java engineer who builds production-ready systems—not just code, you’re in the right place. I’m a Software Engineer with strong expertise in Java-based full-stack development, specializing in Spring Boot, Hibernate, and Microservices architecture. I help businesses design, develop, and deploy scalable, secure, and high-performance applications that work reliably in real-world environments. HOW I HELP CLIENTS ✅ Build Java-based backend systems and RESTful APIs ✅ Design scalable microservices architectures ✅ Develop database-driven applications with clean data models ✅ Optimize performance, reliability, and maintainability ✅ Containerize and deploy applications using Docker and CI/CD pipelines ✅ Integrate AI-driven features such as Speech-to-Text (STT) and Text-to-Speech (TTS) JAVA-FOCUSED TECHNICAL EXPERTISE Backend & Application Development: • Java, Core Java, OOP • Spring Framework, Spring Boot, Hibernate, JPA • RESTful APIs, MVC Architecture • Microservices design • Swagger for API documentation Databases: • MySQL, MongoDB, Oracle, Oracle RAC, etc. • SQL optimization and high-availability systems • Apache Kafka for messaging and event-driven systems DevOps & Cloud: • Docker, Jenkins, GitHub Actions • CI/CD pipelines, AWS, Linux • Tomcat, NGINX • Monitoring: Prometheus, Grafana Additional Skills: • Node.js, PHP, Python (API development, automation), etc. • AI & NLP integrations • Speech-to-Text (STT) & Text-to-Speech (TTS) • Frontend: HTML, CSS, JavaScript, JSP, Bootstrap, etc. Methodologies & Soft Skills: • Agile / Scrum workflows • Strong problem-solving skills and attention to detail WHY CLIENTS CHOOSE ME ✅ Strong experience with production-grade Java systems ✅ End-to-end ownership from development to deployment and support ✅ Clean, maintainable, and efficient code ✅ DevOps-aware, production-focused mindset ✅ Clear communication and dependable delivery ✅ Quick understanding of existing Java codebases I don’t over-engineer solutions — I build practical Java systems that scale and last. LET’S WORK TOGETHER If you need a Java / Spring Boot / Microservices engineer with Docker, AWS, and real production experience, I’d be happy to help. 📩 Send me a message with your requirements, and let’s build something reliable.