Spring Boot API Development

@gustavoguanilo

As a seasoned Full-Stack Developer specializing in microservices architecture, I believe I possess the exact set of skills and domain experience necessary to not only complete this Spring Boot development project successfully, but to deliver it at the utmost quality. Having worked with various stacks and frameworks including Spring Boot, Hibernate and JWT, I can guarantee swift yet detailed implementation of user authentication and authorization via Spring Security, JPA/Hibernate integration with MySQL for seamless data retrieval/storage, as well as thorough RESTful communication with third-party services. Over the years, I have also developed a strong understanding of how to optimize and prioritize both performance and functionality. This allowed me to maximize the value I bring to each development task - right from constructing robust backend solutions complete with automated tests (JUnit + Mockito or Testcontainers) covering critical paths; through ensuring that IRepository is implemented along with a clear migration script where necessary; to providing full documentation (Swagger/OpenAPI) so that the Quality Assurance team can test endpoints immediately post-delivery.

@belotefreelancer

"I have gone through your description. "This is my area of specialization, i can get it done 100 % perfectly well. Please ping me in person. I can help you to complete all tasks. I have hands-on experience in this field. We have already done similar types of projects. Connect with us for more details. Rest assured your satisfaction is guaranteed." Looking forward to your response." Thank you for your time and I am confident that we will be a great fit for this project. Best,

@hamzakhattabi

I understand you're looking for a skilled developer to build robust applications leveraging Java and its ecosystem. I can help you create efficient, scalable RESTful APIs and backend services using Spring Boot and robust database integration with MySQL or PostgreSQL. My expertise in Java Spring and RESTful API development ensures a clean, maintainable, and high-performing solution for your project. I'm eager to discuss how my skills can bring your vision to life. Best regards,

@abhayk49

Hello, I can help you complete and extend your Spring Boot microservice with secure, scalable, and production-ready REST APIs while keeping your CI pipeline green. ✅ Key Skills ☑ Java (8–17), Spring Boot, Spring Security (JWT) ☑ JPA / Hibernate, MySQL integration ☑ REST API design & microservices architecture ☑ Third-party API integration (JSON over HTTPS) ☑ Swagger / OpenAPI documentation ☑ JUnit, Mockito, Testcontainers ☑ Git, CI/CD workflows ✅ How I’ll Approach Your Requirements ☑ Implement JWT-based authentication & authorization using Spring Security ☑ Build and extend CRUD APIs with JPA/Hibernate and MySQL ☑ Integrate the external REST service and map responses to your domain model ☑ Write clean, modular, and fully commented Java code inside your existing Spring Boot module ☑ Prepare Swagger/OpenAPI documentation for all endpoints ☑ Add unit and integration tests covering all critical flows ☑ Ensure the project builds cleanly and matches CI requirements ☑ Push all changes through feature branches and follow your PR workflow ✅ Deliverables ☑ Production-ready Java code (Maven/Gradle compatible) ☑ MySQL entities, repositories & migration scripts ☑ Swagger/OpenAPI docs ☑ Unit + integration test coverage ☑ Short README with local setup and environment variables I’m comfortable working with your existing codebase and can start as soon as you share the repository and schema details. Thanks, Abhay Kumar If you want this shorter or more direct, just tell me ?

@realdevo

❤️❤️❤️Hi boyat❤️❤️❤️ I can take over the micro-service and complete the remaining REST features using idiomatic Spring Boot. I’ll add JWT-based authentication, finish the CRUD endpoints with JPA/Hibernate wired to your MySQL schema, and integrate the external REST service into your domain model. The code will be clean, tested, and ready for CI: entities, repositories, migrations, Swagger/OpenAPI documentation, and focused unit/integration tests. I’ll push everything through feature branches so your reviewers can merge smoothly. If you share the repo and environment details, I can start immediately and keep the service fully aligned with your existing architecture. Best regards James

@Rahulsingh5xz

Hello, I’m Rahul Singh from Team Velora, and for 3+ years we’ve delivered clean, production-ready Spring Boot microservices with Spring Security, JPA/Hibernate, and third-party REST integrations. I can implement JWT-based authentication, CRUD endpoints with MySQL persistence, and the external API integration, complete with Swagger documentation, unit tests, and clear feature-branch workflow. Come to private chat so I can share similar projects and outline the approach to extend your service safely.

@nidhi0257

Seasoned IT professional with 12 years of comprehensive experience in designing, developing, and deploying secure, enterprise-level financial applications. Specialized in implementing robust, high-performance solutions using Java (Java 8, Spring Framework, Spring Boot, Hibernate), RESTful services, and front-end technologies including Swing, PHP, HTML, and CSS. Strong advocate of Test-Driven Development (TDD) with expertise in JUnit and Mockito to ensure code reliability and system integrity. Proficient in developing scalable and secure architectures aligned with best practices and design patterns. Skilled in leveraging cloud platforms such as AWS and GCP to enhance system resilience and data protection. Demonstrated success in delivering mission-critical applications for global financial institutions including Morgan Stanley, NatWest, and Citi Bank, ensuring compliance with stringent financial security standards and regulatory frameworks.

@tamannarajput18

I can develop clean, secure, and high-performance RESTful APIs using Spring Boot for your application. The solution will include well-structured endpoints, optimized database integration (JPA/Hibernate), and proper request/response handling. I ensure best practices such as layered architecture, JWT-based authentication, validation, error handling, and logging. The APIs will be fully documented using Swagger/OpenAPI for easy integration with frontend or mobile apps. I also provide modular, scalable code to support future enhancements and microservice readiness. If required, I can integrate third-party services, payment gateways, and role-based access control. I deliver reliable, tested, and production-ready APIs.

@arsalanabidi16

Hi! I’ve built several Spring Boot micro-services with JWT auth, JPA/Hibernate, and external REST integrations, so extending your existing codebase fits perfectly with my workflow. I can implement the remaining auth layer, CRUD endpoints tied to your MySQL schema, and the third-party service mapping with clean, idiomatic Java. I’ll also deliver full Swagger docs, migration scripts, and solid JUnit/Mockito tests so your CI stays green. Looking forward for your positive response in the chatbox. Best Regards, Arsalan H

@gsinfotechopcp4

GSINFOTECH OPC Pvt. Ltd., based in New Delhi, is a leading IT solutions and software development company committed to empowering businesses with cutting-edge technology. We specialize in delivering secure, scalable, and high-performance digital solutions tailored to meet the needs of startups and enterprises. Our Services Include: Mobile App Development (Android & iOS) Custom Software Development Website Design & Development (WordPress, Joomla, Drupal) Game Design & Development Laravel, React JS & Node JS Development Blockchain Technology Solutions AI & Automation Tools Development Meta Trading Tools Bot Scripting & Web Scraping SEO & Digital Marketing Services Video Editing & Multimedia Solutions With a talented and experienced team, we ensure innovative design, smooth performance, and on-time delivery — every time. Why Choose GSINFOTECH? ✔ High-Quality & Cost-Effective Solutions ✔ Experienced Development Team ✔ 100% Client Satisfaction ✔ Secure & Scalable Technologies ✔ Dedicated Technical Support Partner with GSINFOTECH OPC Pvt. Ltd. to take your business to the next level in the digital world.

@Ashoksahu001

Having successfully completed numerous projects in my 12 years of experience as a Full-Stack Developer, I understand what it takes to build robust, scalable and efficient solutions. My extensive skillset is perfectly aligned with your project requirements—from Java and MySQL to RESTful APIs and everything in between. I have an impressive track record working on different platforms for various high-profile clients such as KPMG, Satocci, Paytm, Ondore, Adidas, as well as government agencies. Throughout my career, I have consistently delivered clean code base that meets industry standards and integrates seamlessly with existing systems—a quality I intend to bring to your project. Additionally, I am proficient in ensuring proper documentation (Swagger/OpenAPI) alongside comprehensive testing (JUnit + Mockito or Testcontainers). Moreover, having been intensely involved in the pull request workflow you have described, I am well acquainted with the importance of clear communication and timely delivery. Hiring me would be the best decision you can make for a high-quality completion of this Spring Boot API Development.

@naqibullah030

Hi I am the Spring boot developer. as you want i can create a micro-services project with all of you want. before a made some project using the Spring Boot technology with the clean coding.

@KosseiNecira

Hello, I am a software engineer and a full-stack developer, currently working as a Java developer. I can extend your Spring Boot service with clean authentication logic, well-structured CRUD endpoints, and a reliable integration layer for the external API. I keep my code modular, easy to follow, and consistent with standard Spring practices, and I always document everything so the service runs smoothly in any environment. I’m comfortable working with feature branches, pipelines, and maintaining code quality across the project. I’d be happy to have you as my first client on this platform.

@sanket433

With my extensive experience encompassing six years in Java Development, specializing in Core Java, Spring Boot, Microservices, and Hibernate, I am confident that I am the perfect fit for your Spring Boot API Development project. Working in Agile (SCRUM) methodology allows me to deliver on projects efficiently and effectively providing finished products that are clean, well-commented Java code that interface harmoniously with existing components. One of my core areas of expertise lies in building secure systems, like the one you described in your project requirements. Utilizing Spring Security (JWT) for User authentication and authorization is something that I have been doing for most of my career. Additionally, my proficiency in SQL optimization, stored procedures, schema design and effective usage of CI pipeline (I assume Jenkins or Bamboo because most of clients and companies prefers those), GitHub (including working on feature branches through pull requests) and production-grade containerization/distribution practices would provide your organization with cohesive development essential for maintaining the current CI pipeline. High-quality work accompanied by clear communication would ensure a successful collaboration and set the stage for future projects using the Spring platform. My track record speaks to my ability to deliver robust backend systems even under demanding circumstances – a quality that bodes well with your fast-paced environment. Let's make this happen!

@Aakash2630

Hi, I work mostly with Java, Spring Boot, and MySQL, and I can help you complete the remaining API work in your microservice. Here is what I can handle: Add JWT-based authentication using Spring Security Build the missing CRUD APIs using JPA/Hibernate Set up entities, repositories, and any required MySQL migrations Integrate with the external REST service and map the JSON response properly Add Swagger/OpenAPI so QA can test the endpoints Write unit tests with JUnit + Mockito I’m used to working with feature branches, PR reviews, and CI pipelines, so I can follow your workflow without issues. I write clean, commented code and keep the structure consistent with the existing project. If needed, I can also prepare a simple README explaining how to run the service locally. Let me know if you want to discuss the exact API list or see some of my Spring Boot work.

@hobadat2103

I can meet the above tasks. If you are looking for a collaborator, please respond to me. Looking forward to working with you.

@rohitpatidar001

As an experienced developer with over 8 years under my belt, I've honed my skills and built a strong foundation in the exact technologies you require for this project. Not only am I proficient in Java Spring and MySQL, but I also have vast experience in developing RESTful APIs using Spring Boot. My knowledge extends to utilizing Spring Security (JWT) for user authentication and authorization, a skill that's directly pertinent to your needs. I'm also well-versed in working with external services over HTTPS, which makes me the right fit for integrating the third-party service your project needs. Going the extra mile, I'll ensure that the data retrieval and storage functionality is handled seamlessly through JPA/Hibernate, keeping your MySQL instance synchronized perfectly. In addition to delivering clean and well-documented code built on Maven/Gradle, I'll also provide comprehensive Swagger/Open API documentation and create tests(JUnit + Mockito or Testcontainers) to ensure that functionality encompasses all critical paths above. My commitment remains even after project completion as my hope is that our collaboration not only leads to a successful project but also opens doors for me to assist with any follow-up modules on the same platform.

@salmanud

Senior Java developer with 13 years of experience. Directly connect me at 9821125315 and the pay is completely negotiable.

@Dharshanv1

Here’s an updated version of the bid that highlights your additional expertise: *Proposal – Spring Boot API Development (Project 40002856)* I’m a Java developer with 2½ years of experience building micro‑services at a Bangalore startup. I have hands‑on expertise with Spring Boot, Spring Security (JWT), JPA/Hibernate, MySQL, and third‑party REST integrations. In addition, I’m comfortable using *Liquibase* for database migrations, *Swagger/OpenAPI* for documentation, *Kafka* for asynchronous messaging, and writing robust *unit and integration tests* (JUnit, Mockito, Testcontainers). *What I’ll deliver* - Secure authentication & authorization using JWT. - Full CRUD endpoints with JPA/Hibernate; migrations handled via Liquibase. - Consumption of the external JSON service and mapping to our domain model. - Comprehensive Swagger/OpenAPI docs for all endpoints. - Unit and small integration tests covering critical paths, including Kafka flows where applicable. - A concise README with environment‑variable instructions and steps to run locally. *Approach* I’ll work in feature branches, submit pull requests, and keep the existing CI pipeline green. Daily status notes will keep you informed. *Timeline & Rate* I can complete the work within 5 days. My bid is ₹15,000 INR (₹13,500 after fees). Best regards, Dharshan V.