JAVA Developer

Doyensys is a Management & Technology Consulting company with expertise in Enterprise applications, Infrastructure Platform Support, and solutions. Doyensys helps clients to harness the power of innovation to thrive on change. The company leverages its technology expertise, global talent, and extensive industry experience to deliver powerful next-generation IT services and solutions. Doyensys Inc has operations in India, the US, Mexico, and Canada.

• Project Role:

  Java Developer



• Project Role Description:

  We are seeking an experienced Java Developer with strong hands-on expertise in Core Java, Spring Boot, and RESTful API development, combined with solid skills in multithreading and concurrency. The ideal candidate should also have practical working knowledge of SQL and Oracle PL/SQL, with the ability to design, develop, and optimize database interactions for high-performance enterprise applications.



• Work Experience:

  5+ years



• Work Location:

  Chennai WFO



• Shift:

  6:30 PM to 3:30 AM IST (9 AM to 6 PM EST) Monday to Friday

• Design, develop, and maintain Java-based backend applications using Spring Boot and RESTful services.


• Implement multithreading and concurrency mechanisms for scalable and high-performance systems.


• Work closely with database teams to design and optimize SQL queries, stored procedures, and PL/SQL packages in Oracle.


• Develop and maintain microservices architecture with efficient communication and data handling.


• Ensure application reliability, performance tuning, and scalability.


• Collaborate with cross-functional teams including UI developers, database engineers, and QA for end-to-end solution delivery.


• Participate in code reviews, design discussions, and best practice implementation.


• Troubleshoot, debug, and optimize existing applications.


• Contribute to continuous improvement by exploring new tools, technologies, and development methodologies.

• Core Java:

  Strong understanding of OOPs, collections, exception handling, generics, and design patterns.



• Spring Boot:

  Deep knowledge of dependency injection, auto-configuration, profiles, and transaction management.



• RESTful Web Services:

  Experience in designing and consuming REST APIs; understanding of JSON and HTTP methods.



• Multithreading & Concurrency:

  Expertise in thread management, synchronization, Executor framework, concurrent collections, and performance optimization.



• Database Skills:

  Strong SQL query writing, tuning, and optimization skills; hands-on experience with Oracle Database and PL/SQL (procedures, triggers, packages, functions).


• Familiarity with JPA/Hibernate for ORM integration.


• Knowledge of Maven/Gradle, Git, and CI/CD pipelines.


• Experience with exception handling, logging, and security in Spring Boot.

• Exposure to microservices architecture and containerization (Docker, Kubernetes).


• Understanding of message queues (Kafka, RabbitMQ).


• Experience with performance profiling and application monitoring (Actuator, Prometheus, Grafana).


• Familiarity with Agile/Scrum methodologies.

• Bachelor s or Master s degree in Computer Science, Engineering, or related field.


• Proven experience integrating Java applications with Oracle databases.


• Understanding of application performance tuning and optimization.

• Analytical Thinking:

  Ability to understand complex systems and find efficient solutions.



• Communication Skills:

  Excellent communication to effectively interact with team members, clients, and management.



• Team Collaboration:

  Ability to work closely with cross-functional teams for delivering quality output.



• Problem-solving Skills:

  Strong logical reasoning and debugging skills for root cause analysis.



• Time Management:

  Capable of prioritizing multiple tasks and meeting deadlines in a fast-paced environment.

• Attention to detail


• Strong problem-solving skills


• Ability to work in a team


• Strong communication skills


• Ability to learn and adapt


• Time management skills


• Customer focus


• Flexibility and adaptability


• Initiative


• Professionalism