GTN Technical Staffing
Backend Developer Sr. - Role Overview
We are looking for a Backend Developer with strong expertise in Java technologies and modern backend architecture. This role involves designing and implementing scalable, secure, and maintainable services using widely adopted frameworks and tools. Core Technical Proficiencies
Java (8 and 17+) with Spring Boot and Spring Framework modules: Web, Data JPA, Security RESTful and GraphQL API development following clean architecture principles Hibernate/JPA for ORM and efficient data access (MySQL, PostgreSQL) Integration with third-party APIs, messaging platforms (Kafka, RabbitMQ), and caching solutions (Redis, Ehcache) Exception handling, structured logging (SLF4J, Logback), and secure authentication/authorization (JWT, OAuth2) Containerization and deployment using Docker and Kubernetes, with CI/CD pipelines (GitHub Actions, Jenkins, Azure DevOps) Unit and integration testing using JUnit 5, Mockito, and Spring Test Build tools and version control: Maven/Gradle, Git; API documentation via Swagger/OpenAPI Strong understanding of Core Java concepts: OOP, Collections, Streams, and Concurrency Preferred Additional Skills
Experience with JSP, Servlets, and JSTL for dynamic web interfaces Familiarity with the Codename One framework for cross-platform mobile development
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We are looking for a Backend Developer with strong expertise in Java technologies and modern backend architecture. This role involves designing and implementing scalable, secure, and maintainable services using widely adopted frameworks and tools. Core Technical Proficiencies
Java (8 and 17+) with Spring Boot and Spring Framework modules: Web, Data JPA, Security RESTful and GraphQL API development following clean architecture principles Hibernate/JPA for ORM and efficient data access (MySQL, PostgreSQL) Integration with third-party APIs, messaging platforms (Kafka, RabbitMQ), and caching solutions (Redis, Ehcache) Exception handling, structured logging (SLF4J, Logback), and secure authentication/authorization (JWT, OAuth2) Containerization and deployment using Docker and Kubernetes, with CI/CD pipelines (GitHub Actions, Jenkins, Azure DevOps) Unit and integration testing using JUnit 5, Mockito, and Spring Test Build tools and version control: Maven/Gradle, Git; API documentation via Swagger/OpenAPI Strong understanding of Core Java concepts: OOP, Collections, Streams, and Concurrency Preferred Additional Skills
Experience with JSP, Servlets, and JSTL for dynamic web interfaces Familiarity with the Codename One framework for cross-platform mobile development
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