Java Backend Developer
First seen by Alion on Aug 6, 2026.
About the Role :
We are looking for a highly skilled Java Backend Developer with strong expertise in Core Java, Spring Boot, Kafka, Node.js, and MySQL. The ideal candidate should have experience building scalable, high-performance backend applications and RESTful APIs in a microservices environment.
Key Responsibilities :
- Design, develop, and maintain scalable backend applications using Java and Spring Boot.
- Develop and enhance RESTful APIs and microservices for enterprise applications.
- Build and integrate event-driven applications using Apache Kafka.
- Develop and optimize database solutions using MySQL.
- Collaborate with frontend, QA, DevOps, and Product teams to deliver high-quality software.
- Troubleshoot production issues, perform root cause analysis, and optimize application performance.
- Work in Linux environments for deployment, debugging, and operational support.
- Write clean, reusable, and well-documented code while following coding standards and best practices.
- Participate in code reviews, unit testing, and Agile development processes.
- Support CI/CD deployments and contribute to continuous improvement initiatives.
Required Skills :
- 5 - 8 years of experience in Java backend development.
- Strong expertise in Core Java, including Multithreading, Synchronization, Collections, JVM, Garbage Collection, and Connection Pooling.
- Minimum 4 years of hands-on experience with Spring Boot and REST API development.
- Strong experience with Node.js.
- Hands-on experience with Apache Kafka for event-driven architectures.
- Strong knowledge of MySQL, query optimization, and database design.
- Good experience working in Linux environments.
- Strong understanding of microservices architecture and distributed systems.
- Experience with Git and Agile/Scrum development methodologies.
Good to Have :
- Working knowledge of AWS services.
- Basic experience with React.js for frontend debugging and minor enhancements.
- Experience with Python for automation or backend scripting.
- Knowledge of Shell Scripting.
- Exposure to Docker, Kubernetes, and CI/CD pipelines is an advantage.
Candidate Expectations :
- Strong Core Java fundamentals are mandatory.
- Proven experience developing production-grade APIs using Spring Boot.
- Ability to write clean, efficient, and maintainable code.
- Excellent analytical, debugging, and problem-solving skills.
- Strong communication and collaboration skills.
- Candidates with strong technical depth and hands-on development expertise will be preferred over those with higher years of experience but limited practical exposure.
Skills
Java, Backend Architecture, Spring Boot, Kafka, RESTful API, Microservices Architecture, Distributed Systems, Linux, AWS