Java Developer – Core Java, Multithreading, SQL, Database Design & Spring Boot

Job Summary

Synechron is seeking a Java Developer to build, enhance, and support scalable enterprise applications and microservices. The role focuses on Core Java, multithreading, database design, SQL, and Spring Boot to deliver secure, reliable, and high-performing solutions.

Software Requirements

Required:

• Java 11+; Java 17 preferred
• Spring Boot 2.x/3.x and Spring Framework
• SQL and relational databases
• RESTful APIs and microservices
• Git, Maven or Gradle
• JUnit and Mockito
• CI/CD practices
• Familiarity with Agile delivery

Preferred:

• Apache Kafka
• Docker and Kubernetes
• Cloud platforms such as AWS, Azure, or Google Cloud
• OpenAPI/Swagger and application monitoring tools

Overall Responsibilities

• Design, develop, test, and maintain Java applications and microservices.
• Build scalable solutions using Spring Boot.
• Apply Core Java, collections, exception handling, memory management, and design patterns.
• Develop concurrent applications using multithreading and concurrency concepts.
• Design database schemas, data models, stored procedures, and optimized SQL queries.
• Develop and integrate REST APIs.
• Troubleshoot defects and improve application performance.
• Participate in code reviews, technical design, documentation, and deployment activities.
• Collaborate with analysts, architects, quality assurance teams, and other stakeholders.
• Follow secure, maintainable, and resource-efficient development practices.

Technical Skills (By Category)

• Programming Languages:
  Essential: Java 11+, Core Java, multithreading, concurrency, SQL.
  Preferred: Java 17+, scripting languages.

• Databases/Data Management:
  Essential: Relational database design, data modeling, joins, indexes, transactions, stored procedures, and query optimization.
  Preferred: NoSQL, partitioning, replication, and execution-plan analysis.

• Cloud Technologies:
  Essential: Understanding of application deployment and configuration environments.
  Preferred: AWS, Azure, Google Cloud, Docker, or Kubernetes.

• Frameworks and Libraries:
  Essential: Spring Boot, Spring MVC, Spring Data, Spring Security, JUnit, Mockito, and Hibernate/JPA.
  Preferred: Kafka, Spring Cloud, WebFlux, OpenAPI, and resilience frameworks.

• Development Tools and Methodologies:
  Essential: Git, Maven/Gradle, CI/CD, Agile, code reviews, testing, debugging, and documentation.
  Preferred: Jenkins, GitHub Actions, SonarQube, centralized logging, and distributed tracing.

• Security Protocols:
  Essential: HTTPS/TLS, secure API development, authentication, authorization, input validation, and secure handling of credentials.
  Preferred: OAuth 2.0, OpenID Connect, JWT, and security scanning tools.

Experience Requirements

• Typically 3–7 years of professional Java development experience.
• Hands-on experience with Spring Boot, microservices, REST APIs, multithreading, SQL, and relational databases.
• Experience with testing, Git, code reviews, CI/CD, troubleshooting, and performance tuning.
• Experience in financial services or another regulated industry is preferred.
• Equivalent experience, technical training, or demonstrable software projects may be considered in place of formal qualifications.

Day-to-Day Activities

• Review requirements and technical designs.
• Develop Java and Spring Boot features and APIs.
• Create tests and optimize SQL queries and application performance.
• Participate in team meetings, code reviews, sprint activities, and design discussions.
• Investigate defects and production issues.
• Collaborate with architecture, quality assurance, deployment, and business teams.
• Maintain technical documentation and support release activities.
• Make implementation decisions within approved architecture, security, and delivery standards.

Qualifications

• Bachelor’s degree in computer science, software engineering, information technology, or a related field, or equivalent practical experience.
• Java, Spring, cloud, database, or security certifications are preferred but not required.
• Completion of Synechron security, compliance, and role-specific training is required.
• Ongoing learning in Java, Spring Boot, databases, cloud, security, and software engineering is expected.

Professional Competencies

• Analytical thinking and structured problem-solving.
• Clear written and verbal communication.
• Effective collaboration with technical and non-technical stakeholders.
• Ownership of assigned work and timely escalation of risks.
• Ability to adapt to changing requirements and learn new technologies.
• Focus on quality, security, performance, maintainability, and efficient use of technology resources.