Backend Developer (Java / Spring Boot)

@OutsourceMan

⭐⭐⭐⭐⭐ CnELIndia brings extensive experience in Java 21 and Spring Boot backend development, ensuring robust and maintainable microservices aligned with cloud-native principles. Raman Ladhani’s expertise in Identity & Access Management (IAM), OIDC, and OAuth2 enables seamless integration of secure authentication and authorization flows. Our combined experience with Docker, Kubernetes, and cloud architectures ensures scalable, containerized deployment of services. Prior work in regulated healthcare environments equips us to meet strict security and compliance requirements for sensitive data handling. Proficiency with Apache Kafka and REST API development supports reliable inter-service communication and integration across the microservice ecosystem. Collaborative approach with architecture and security teams ensures alignment with project goals, rapid issue resolution, and adherence to best practices. Ability to start immediately and commit full-time for the 8-month duration guarantees continuity and timely delivery of project milestones.

@offshore9006

Hi There: Hope this note finds you in great spirits. Please note the below details: Summary: Technical Architect with 08 years of experience in product development in JAVA, Hibernate, JPA, Spring, Java FX, SQL, performance tuning and web application security with a knack for troubleshooting. SKILLS: Java 1.7, 1.8: Hibernate JPA | Spring Boot, Spring cloud Jboss JBPM, JBoss Drools Quartz scheduler | Oracle |PostgreSQL | Java performance analysis Oracle WebLogic | Apache Tomcat Apache Solr | Elastic stack Apache ActiveMQ | AWS Lambd | Eclipse, IntelliJ |Stanford CoreNLP Architecture: Microservices | Monolithic We are a team of IT professionals mentored by very experienced leadership. We offer solutions on WEB and Mobile technologies. Please visit our company site www.kennedia.net. We have in-house UI/UX and a Testing team. We will start the work within 2-3 days after the award of the project. Look forward to hearing from you!! Thanks,

@rohitpatidar001

With nine years of producing cutting-edge solutions using Java and J2EE technologies, I bet my expertise will be an undeniable asset to your team. Not only do I specialize proficiently in Spring Boot, including microservices and REST APIs, but I carry invaluable experience with Apache Kafka, Docker, Kubernetes and cloud-based architectures. Your project within the healthcare sector is especially exciting to me as I have prior knowledge of its unique demands and stringently regulated IT environments. My familiarity with Identity & Access Management (IAM) and the aforementioned OpenID Connect (OIDC) and OAuth2 makes me a qualified choice for developing and enhancing your cloud-based Identity Provider (IdP). Additionally, my grasp on AI and intelligent integrations can further optimize your system as it aligns with my experience integrating REST-based AI APIs into Java and Spring Boot backends. Let's not forget that security is at the crux of your project; luckily, it's a facet I've always given paramount importance in my work. Your project deserves undivided attention from a competent developer like myself who understands the significance of clean architecture, reliability, and future maintainability. Hence, I'm ready not only to own the backend architecture end-to-end but also seamlessly integrate into your current team and codebase.

@Julian29

I HAVE WORKED ON SIMILAR CLOUD-NATIVE BACKEND SYSTEMS USING JAVA, SPRING BOOT, AND SECURE IAM FLOWS — BUILDING HIGHLY SCALABLE MICROSERVICE PLATFORMS FOR SECURITY-CRITICAL APPLICATIONS. With 11+ years of backend development experience, I can contribute to your **Java 21 / Spring Boot microservices architecture** and support the development of a secure **cloud-based Identity Provider (IdP)** within a regulated healthcare environment. Core Expertise: • Backend development using **Java 21 and Spring Boot** • Implementation of **OIDC / OAuth2 authentication and authorization flows** • Development and integration of **secure REST APIs** • Event-driven architecture using **Apache Kafka** • Containerized deployments with **Docker and Kubernetes** • Cloud-native architecture and scalable backend services • Strong understanding of **Identity & Access Management (IAM)** and security best practices Role Contribution: • Develop and maintain backend microservices • Implement secure identity and access control mechanisms • Integrate authentication services within the cloud architecture • Collaborate with security and architecture teams in a regulated environment You will receive **clean, well-documented source code**, professional collaboration standards, and **2 years of free ongoing technical support after delivery if required for system stability and improvements**. Available to start immediately and support the project **full-time during the 8-month engagement**.

@temoberishvili

Hello, I reviewed the project description and the focus on building a secure cloud-based Identity Provider within the healthcare Telematics Infrastructure is very interesting. Working in a regulated environment requires strong attention to security, authentication standards, and reliable microservice architecture. The backend services can be developed using Java 21 and Spring Boot, following microservice principles and secure coding practices. Authentication and authorization flows can be implemented using OIDC and OAuth2, ensuring proper token handling, identity validation, and secure API access. Integration with Apache Kafka can support event-driven communication between services, while Docker and Kubernetes will help maintain a scalable and containerized cloud deployment. REST APIs will be structured to work seamlessly with the identity services, and careful attention will be given to logging, monitoring, and compliance requirements that are common in healthcare systems. Collaboration with architecture and security teams will ensure the implementation aligns with regulatory expectations and system reliability standards.

@DigitaSyndicate

Beware the silent peril of subtle authentication flaws undermining your Telematics Infrastructure’s integrity. Your project demands precise mastery of Java 21, Spring Boot, and OIDC/OAuth2 integration within a cloud-native microservice environment governed by stringent healthcare regulations. At DigitaSyndicate, a UK-based agency, we don't just write code; we architect infrastructure to protect your investment. Our expertise ensures that your Identity Provider is both robust and compliant, supported by vigilant local UK accountability that stands ready to respond. Have you rigorously validated the interaction between your microservices and OIDC flows to preempt potential token mismanagement or replay vulnerabilities? Casper M. DigitaSyndicate

@johibkhan

Hi, With my impressive 15+ years of experience in software application development, I assure you of my familiarity with, and proficiency in the Java and Spring Boot technologies essential to this project. Having worked with high-end companies such as Avaya, Pramati, and CGI, I guarantee a deep understanding of the sensitivity and compliance paramount to healthcare data management. My meticulous approach, honed by years of satisfying intricate business goals, is tailor-made for this challenging task. To further add credibility to my pitch, I not only possess extensive Java backend development experience but also have earned an excellent reputation for efficient coding, performance optimization, and creating scalable architectures. These are all fundamental requirements for a secure and robust cloud-based Identity Provider (IdP) solution. My knowledge in Identity & Access Management (IAM) coupled with prior involvement in OpenID Connect (OIDC) and OAuth2 flow integration would be valuable assets in ensuring strong user authentication.

@devitmd98

Hello, I can support the development of your cloud based Identity Provider by building secure Java and Spring Boot services that handle authentication flows, token management, and reliable API integration within a microservice environment. I have experience working with Java backend systems where OAuth2, OpenID Connect, event driven services, and containerized deployments must operate reliably in security sensitive architectures. This role aligns well with my background because it requires strong identity management logic, clean microservice design, and collaboration with security teams in regulated environments. Is the IdP built on top of an existing framework such as Keycloak or implemented as a custom service. How are Kafka events currently used in the authentication or identity lifecycle. What cloud platform and Kubernetes environment are used for deployment and scaling.

@sasaprogramer21

Hello, I’m a senior backend developer with strong experience building secure Java microservices using Spring Boot in cloud-native environments. I’ve worked on identity systems, authentication services, and API platforms where security, reliability, and compliance are critical. My background includes developing Java 17/21 backend services with Spring Boot, implementing OAuth2 and OpenID Connect authentication flows, and designing REST APIs within distributed microservice architectures. I’ve also worked with Apache Kafka for event-driven communication and with Docker/Kubernetes for containerized deployments. In regulated environments, I focus heavily on secure coding practices, service isolation, audit logging, and reliable identity flows. I’m comfortable collaborating with architecture and security teams to ensure authentication services and IAM integrations follow strict compliance requirements. I’m also experienced joining existing systems and improving backend services while maintaining production stability. My workflow includes clear documentation, clean API design, and test-driven development to keep systems maintainable over time. I am available to start immediately and can commit full-time for the duration of the project while working effectively with distributed teams. Timeline: Immediate start Budget: $20/hr Best Alex

@MQamar123

With my wealth of knowledge in Java and Spring Boot development, I'm confident in being the right person for your backend development needs. With over 7 years worth of experience, I've developed a strong competency in a range of languages including Node.js, React.js and PHP which will prove extremely useful when collaborating with your organization's architecture and security teams. This adaptability extends to frameworks such as Spring Boot, Apache Kafka and Docker, all of which I am confident in handling. To have developed and integrated REST APIs like you require, and specifically, OIDC / OAuth2 configurations is something I am not only familiar but highly skilled in. My hourly rate aligns with your budget for the project, while still delivering top-notch results and consistency throughout the eight months. I look forward to potentially working together on the Telematics Infrastructure (TI) project, using my skills to enhance your cloud-based Identity Provider (IdP) solution.

@SmartCodeDev

Hello, I’m interested in the Backend Developer role for your healthcare project. I have solid experience building backend systems with Java and Spring Boot, working with REST APIs, microservice architectures, and cloud-based deployments. I’m also familiar with OAuth2 / OpenID Connect authentication flows, containerized environments using Docker and Kubernetes, and event-driven systems with Apache Kafka. I understand the importance of security, compliance, and reliable architecture, especially in regulated environments like healthcare. I’m available to start immediately and can commit full-time for the 8-month duration. My rate is within the specified range. I’d be happy to discuss the architecture, responsibilities, and how I can contribute to the Identity Provider development. Thank you.

@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,

@mykhaylob4

✋ Hi there. I can support your healthcare Telematics project by developing and maintaining secure, cloud-based backend services using Java 21 and Spring Boot, ensuring your Identity Provider solution handles authentication and authorization reliably. ✔️ I have extensive experience in Java backend development, including Spring Boot, REST API design, OIDC/OAuth2 flows, and cloud-native microservice architectures. I have worked with Apache Kafka, Docker, and Kubernetes in regulated environments, and I understand the security and compliance requirements essential for healthcare applications. ✔️ For your project, I will implement and maintain backend services, integrate identity flows, collaborate with architecture and security teams, and ensure each component is secure, reliable, and scalable. I will follow best practices for IAM and provide clean, well-documented code for smooth operation and future maintenance. ✔️ I will also contribute to cloud-based microservices, handle deployment in containerized environments, and ensure that your authentication and authorization systems are robust and compliant with healthcare regulations. Let’s discuss your current setup and timeline so I can help make the IdP solution fully operational. Best regards, Mykhaylo

@Yunsoft

Hi , I just saw your project regarding Backend Developer (Java / Spring Boot). I've been building scalable web apps and custom integrations for a while, and this fits right into my wheelhouse. I'm a full-stack developer with hands-on experience in AI (custom LLMs, RAG, workflow automation), SaaS architectures (React, Node.js), and Web3 integrations. Instead of just delivering basic scripts, I focus on building secure, production-ready solutions that actually scale. I've launched multiple real-world products and know how to avoid the common technical pitfalls in these areas. Let's hop on a quick chat so we can go over your exact needs. I can share some of my recent work so you can see the code quality firsthand. Best, Emre

@arbu1499

Hi! Your project around building a secure cloud-based Identity Provider for the healthcare Telematics Infrastructure sounds very interesting. I have solid experience working with Java, Spring Boot microservices, REST APIs, and cloud-native architectures, and I’m comfortable implementing OIDC/OAuth2 authentication flows, IAM integrations, and containerized deployments using Docker and Kubernetes. I’ve also worked in security-focused systems where reliability and compliance are critical, so contributing to your Java 21 + Kafka based backend services would be a great fit. I’m available to start immediately and can commit full-time for the project duration. Looking forward for your positive response in the chatbox. Best Regards, Arbaz T

@emilesd617

Hi, I am a backend developer with 8 years of rich experience. I am skilled in Java, Spring Boot, Microservices, REST API, and Apache Kafka. For this project, I can help develop and maintain secure backend services for the cloud-based Identity Provider. The most critical part is implementing reliable authentication flows using OAuth2 and OIDC while keeping the microservice architecture secure and scalable. I will focus on clean Spring Boot services, stable API integrations, and containerized deployment using Docker and Kubernetes. I'm an individual freelancer and can work on any time zone you want. Please contact me with the best time for you to have a quick chat. Looking forward to discussing more details. Thanks. Emile.

@usaravananbe2004

Hi, Hope you are doing well, I went through your requirements, I am pretty much confident that I can complete this task as I am expert in Java, spring boot, api development (both rest and soap), TDD, Junit, I have done similar kind of projects already and deliver the code very quickly About myself: I have 10+ years’ hands on experience in software development using Java, node.js, Spring boot, mvc, Hibernate, JaxRS/WS Strong Experience on Automation testing Experience in Agile process Expert in implementing TDD/BDD using Junit, TestNG, Mockito, PowerMockito, DBUnit, SpringMock, Rest fuse, Rest assured technologies. Please ping me to discuss further

@virakar99

Hi there! ✋ Your project around a cloud-based Identity Provider for healthcare infrastructure sounds very interesting. I’m experienced in Java backend development with Spring Boot, and working in security-critical environments where authentication, compliance, and reliability are essential. I’m comfortable building and maintaining Java 21 / Spring Boot microservices, implementing OIDC and OAuth2 authentication flows, and developing secure REST APIs within cloud-native architectures. I also have experience working with Apache Kafka for event-driven systems, and deploying services using Docker and Kubernetes in scalable environments. Given the regulated nature of healthcare platforms, I pay strong attention to security practices, clean architecture, and maintainable code, especially when dealing with Identity & Access Management systems and authentication providers. I’m available to ✅start immediately and can commit to the ✅full-time workload over the ✅8-month duration. ✅Remote collaboration with architecture and security teams is something I’m very comfortable with. If helpful, I’d be happy to discuss how I would approach OIDC integration, token handling, and secure service communication within your microservice environment. Looking forward to learning more about the project! Best regards, Viraj

@zyeloncomputech

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