EJB to Spring Boot Migration

@ParasTech7

I have 21 years of experince, Principal Software engineer at Microsoft, I have extensive experince with data spring boot, JPA, Java 17 and 21, data integration, API development and development microservices, well versed with sql based databases . I can do your work efficiently.

@borse1012

I can help you successfully migrate your existing EJB-based application to a modern Spring Boot architecture, ensuring improved scalability, maintainability, and performance. Relevant Experience I have strong hands-on experience in Java, Spring Boot, microservices, and enterprise application modernization, including migrating legacy systems (EJB/monolith) to Spring-based architectures. Approach Analyze current EJB components (Session Beans, DAOs, transactions) Refactor into Spring Boot services, repositories, and controllers Replace container-managed features with Spring equivalents (Spring Data JPA, Spring Transactions, Spring Security) Ensure backward compatibility and minimal disruption Optimize performance and simplify deployment What I’ll Deliver Clean, modular Spring Boot codebase Fully functional REST APIs (if required) Updated configuration and build setup (Maven/Gradle) Unit/integration tests Documentation for smooth handover I focus on writing clean, maintainable, and production-ready code, ensuring a smooth transition from legacy to modern architecture. Happy to review your current codebase and provide a detailed migration plan.

@Vinay7758

I am expert in spring boot, I have created platforms like markeplace, crud applications in spring boot. Lets chat to discuss this more.

@nishadf2311

Hi, I can help migrate your existing EJB application to a modern Spring Boot architecture while preserving business logic and improving performance, scalability, and maintainability. As a Java and Spring Boot developer, I will refactor EJB components into Spring services, replace legacy configurations with Spring Boot auto-configuration, and ensure smooth database, security, and API integration. I focus on clean code, minimal downtime, and a structured migration approach to keep your system stable during transition. I’m ready to start immediately and deliver a reliable, production-ready solution.

@bacchug

I’d position myself as a strong Java developer candidate for most projects: 1. Core Java & Modern Features – Deep understanding of Java 8–17+ (streams, lambdas, records, sealed classes, concurrency utilities, and modularity). 2. Spring Ecosystem – Extensive hands-on with Spring Boot, Spring Security, Spring Data JPA, and Spring Cloud for microservices. 3. Performance & Reliability – Experience profiling JVM applications, tuning GC, optimizing database queries, and implementing caching (Redis, Caffeine). 4. Testing & Quality – Proficient in JUnit 5, Mockito, Testcontainers, and integration testing; advocate for clean, maintainable code (SonarQube, peer reviews). 5. DevOps & Tools – CI/CD pipelines (Jenkins/GitHub Actions), containerization (Docker), orchestration (K8s basics), and monitoring (Prometheus + Grafana). 6. Problem-Solving – Proven track record debugging production issues, reducing tech debt, and designing scalable, fault-tolerant systems.

@vinaykumarpal912

? Senior Java Backend Engineer | Spring Boot | Microservices | EJB Migration I am a backend engineer with 11+ years of experience building and modernizing high-performance Java applications. I specialize in migrating legacy J2EE/EJB systems to scalable Spring Boot microservices, helping improve performance, maintainability, and deployment efficiency. ? Expertise: * Java, Spring Boot, Microservices Architecture * EJB (Session Beans, JMS) to Spring Migration * REST API design and backend system architecture * Kafka / event-driven systems * Performance optimization and production issue debugging ? What I can help with: * EJB to Spring Boot migration (full or incremental) * Monolith to microservices transformation * Backend performance tuning (latency, memory, scaling) * Fixing critical production issues ⚡ I focus on clean, maintainable, and production-ready solutions with strong emphasis on scalability and reliability. ? Availability: Weekends + limited weekday evenings (IST) If you're looking for an experienced backend engineer to modernize your system or solve complex issues, I can help deliver fast and effectively.

@abhijithsree

With 12+ years of experience in Java and Spring Boot technologies, I am well-equipped to handle your requirements and ensure successful delivery.

@antonp02

Hello Client, I’ll deliver your EJB to Spring Boot migration with precision and efficiency, ensuring smooth performance and error-free results. You’ll receive clear documentation, setup instructions, and a walkthrough so you can maintain and update easily. My experience includes creating stable systems and optimized workflows that saved clients time and minimized issues. I focus on practical solutions, fast delivery, and professional communication—making sure your requirements are met without complications. I’m ready to start immediately and can adapt to your timeline. Let’s connect today and move your project forward with confidence. Regards, Anton Prinsloo

@Hari2150

I have strong experience migrating legacy J2EE/EJB applications to Spring Boot and microservices-based architectures. My approach: • Analyze existing EJB components (Session Beans, DAOs, transactions) • Replace EJBs with Spring Boot layers (Controller, Service, Repository) • Migrate transaction management to Spring (@Transactional) • Convert persistence to Spring Data JPA • Ensure API compatibility and clean architecture I can deliver a clean, production-ready Spring Boot structure for the scoped module within timeline. Note: Bid is based on a limited module/migration scope. Full system migration can be planned in phases after initial analysis. Available to start immediately.

@rakeshk322

Hi, I can help you migrate your existing EJB-based application to a modern Spring Boot architecture with clean, scalable, and maintainable code. I have hands-on experience refactoring legacy Java EE systems, decoupling tightly bound components, and redesigning them using Spring Boot, REST APIs, and microservices principles where needed. Before starting, I’d like to clarify a few things: What is the current application size and complexity? Are you using EJB 2.x or 3.x? Do you require a full rewrite or gradual migration? Any specific database or integrations involved?

@indreshpnk

Hello, I understand you need to convert your existing EJB-based application to Spring Boot. The goal is to deliver a modern, scalable, and microservices-ready solution that improves performance and maintainability. Here’s what I can provide: Seamless migration from EJB to Spring Boot with clean architecture Refactoring into microservices with Spring Data and optimized MySQL integration Improved performance, code quality, and future scalability I bring over 4+ years of experience in Java, Spring Boot, and Microservices, with a strong focus on building reliable, scalable, and user-friendly applications. Over the years, I’ve worked on enterprise-level applications and migration projects, always keeping performance, usability, and design quality as top priorities. Just to clarify a few things: What is the size and complexity of your current EJB application? Do you want a full microservices architecture or a modular monolith approach? Please come to the chat box to discuss more about your project. Best regards Indresh Kushwaha

@vipineceimps

I have hands-on experience from similar work in my previous project. Experienced in similar tasks from my last project. Hands-on experience gained through similar work in my previous project.

@sidhantm34

I specialize in modernizing legacy Java architectures, specifically transitioning complex enterprise applications from EJB-heavy environments to high-performance Spring Boot ecosystems. My background as a Senior Software Engineer focused on backend optimization means I don't just migrate code; I refactor for better latency and scalability, ensuring that container-managed transactions and JNDI dependencies are replaced with clean, cloud-ready Spring configurations. I have a proven track record of managing migrations from Java 8 through 21, implementing Spring Data JPA to streamline MySQL interactions, and containerizing applications with Docker for modern deployment. By hiring me, you gain an engineer who understands the nuances of decoupling business logic from application servers while maintaining 100% functional parity and improving overall system maintainability. I am bidding ₹1,500 for the initial migration of the core service layer (e.g., 2-3 EJBs to Spring Services). If the project involves the entire monolithic EAR/WAR migration, we can discuss a milestone-based budget after I audit the code.

@bhushananchit

I can help you migrate your existing EJB-based application to a modern Spring Boot architecture in a clean, efficient, and maintainable way. I have 4.5+ years of experience in Java backend development, working with enterprise systems and handling complex business logic. In my current role, I have worked on large-scale healthcare applications where performance, reliability, and structured code were critical. I am comfortable with Spring Boot, REST APIs, microservices, and database integration, and I understand how to refactor legacy systems without breaking existing functionality.

@kanagarajan99

Hi, I can migrate your EJB-based modules to Spring Boot with a safe, phased approach that preserves business behavior and reduces migration risk. I have 5 years of experience in Java backend engineering with Spring Boot, Spring Data JPA, SQL, and maintainable service architecture. I will map legacy components to modern Spring services/repositories, align transaction boundaries, and add regression-oriented tests to ensure functional parity. I focus on clean code structure, strong validation/error handling, and clear documentation so your team can extend the migrated code confidently. I can start immediately and provide a milestone plan with measurable checkpoints and rollout safety.

@ShreeJiCoding

I have strong experience in migrating legacy EJB-based applications to modern, scalable Spring Boot architectures. In past projects, I’ve successfully transformed monolithic EJB systems into clean, modular Spring Boot services, improving performance, maintainability, and deployment flexibility. I understand the challenges involved in EJB migration—such as handling session beans, transaction management, security, and tight coupling—and I follow a structured approach to ensure a smooth transition with minimal disruption. Depending on your requirements, we can either: • Refactor and reorganize the existing EJB application, gradually migrating components to Spring Boot while preserving business logic, or • Rebuild the application from scratch, designing a modern microservices or modular architecture using Spring Boot, Spring Data, and REST APIs. I focus on clean code practices, proper layering, and future scalability. I can also assist with database migration, API design, and deployment setup. Let’s discuss your current system and goals—I’d be happy to propose the best migration strategy tailored to your needs.

@PinarOzkan

Hi , I worked with ejb years and I have worked with spring boot for last 2 years. I can help you for this project.

@khushbu144

Hi, I can assist you with converting your EJB-based application to Spring Boot. I have experience working with Spring Boot, REST APIs, and backend systems, and I understand how to structure scalable applications using Spring. I can help in: ✔ Converting existing logic to Spring Boot architecture ✔ Setting up Spring Data and REST APIs ✔ Improving maintainability and performance I am ready to start immediately and can work within your budget. Could you please share the current project structure or specific modules to migrate? Thanks.