Senior Java EE Developer - AWS

Reposted 4 Days Ago
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Johannesburg, City of Johannesburg, Gauteng, ZAF
In-Office
Senior level
Agency • Information Technology • Professional Services
The Role
Lead design and development of enterprise backend systems using Java EE/Jakarta EE and Spring Boot. Build APIs, microservices, integrations, and batch processes; optimize performance; implement testing and security best practices; deploy and monitor cloud/hybrid applications; mentor developers and enforce code standards across teams.
Summary Generated by Built In

We are looking for an experienced Senior Java EE Developer with 7+ years of hands-on enterprise Java development experience. The ideal candidate will have a strong background in building secure, scalable, and high-performance backend systems within complex enterprise environments. You will contribute to solution architecture, lead development efforts, and collaborate across multidisciplinary teams to deliver robust business applications.

 

Key Responsibilities:

  • Design, develop, and maintain enterprise-grade backend applications using Java EE/Jakarta EE standards.
  • Build and optimize APIs, microservices, and integration layers using frameworks such as Spring / Spring Boot, JAX-RS, JPA, EJB, Hibernate.
  • Develop and maintain high-performance server-side components and batch processing workflows.
  • Implement unit tests, integration tests, and ensure code quality through best practices and standards.
  • Participate in solution architecture design sessions for new and existing systems.
  • Contribute to the design of scalable, modular, and resilient backend architectures.
  • Identify performance bottlenecks and recommend system improvements.
  • Work with relational databases such as PostgreSQL, Oracle, MySQL, SQL Server.
  • Develop efficient SQL queries, stored procedures, and ORM mappings.
  • Ensure data integrity, performance, and security.
  • Integrate systems using REST, SOAP, JMS, Kafka, or other messaging platforms.
  • Develop and maintain middleware components and enterprise integration patterns (EIP).
  • Work with CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI, Azure DevOps, etc.).
  • Build containerized services using Docker; experience with Kubernetes is a plus.
  • Experience deploying Java applications in AWS, Azure, or on-premise environments.
  • Familiarity with infrastructure automation/configuration tools is considered an advantage.
  • Implement application security best practices (authentication, authorization, OWASP standards).
  • Work with identity providers (OAuth2, SSO, JWT, Keycloak, Azure AD, etc.).
  • Lead development streams and mentor junior developers.
  • Conduct code reviews and enforce development standards.
  • Work closely with business analysts, testers, and product owners.


Requirements
  • 7+ years enterprise Java development experience (required).
  • Strong experience in Java EE/Jakarta EE, Spring, Spring Boot, and ORM frameworks.
  • Solid understanding of REST APIs, microservices architecture, and enterprise integration.
  • In depth AWS experience with experience encompassing services like API Gateway, EC2, Lambda, etc.
  • Strong SQL and database design experience.
  • Experience with message brokers (JMS, Kafka, RabbitMQ) and service-oriented architectures.
  • Experience with Git and CI/CD automation.
  • Experience deploying and monitoring Java applications in cloud or hybrid environments.
  • Experience with Kubernetes / OpenShift, Apache Camel, MuleSoft, or other integration frameworks
  • Monitoring tools (Prometheus, Grafana, ELK, Splunk)
  • Caching frameworks (Redis, Hazelcast)
  • Cloud certifications (AWS, Azure, GCP) are beneficial.


Skills Required

  • 7+ years enterprise Java development experience
  • Strong experience with Java EE / Jakarta EE
  • Strong experience with Spring and Spring Boot
  • Experience with ORM frameworks (JPA, Hibernate, EJB)
  • Solid understanding of REST APIs, microservices architecture, and enterprise integration
  • In-depth AWS experience (API Gateway, EC2, Lambda, etc.)
  • Strong SQL and database design experience (PostgreSQL, Oracle, MySQL, SQL Server)
  • Experience with message brokers and messaging patterns (JMS, Kafka, RabbitMQ)
  • Experience with Git and CI/CD automation (Jenkins, GitHub Actions, GitLab CI, Azure DevOps)
  • Experience deploying and monitoring Java applications in cloud or hybrid environments
  • Experience with containerization (Docker) and container orchestration (Kubernetes / OpenShift)
  • Experience with integration frameworks (Apache Camel, MuleSoft) and enterprise integration patterns
  • Experience with monitoring tools (Prometheus, Grafana, ELK, Splunk)
  • Experience with caching frameworks (Redis, Hazelcast)
  • Implement application security best practices and work with identity providers (OAuth2, SSO, JWT, Keycloak, Azure AD)
  • Cloud certifications (AWS, Azure, GCP)
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The Company
Year Founded: 2013

What We Do

Sabenza IT is a niche recruitment company specializing in Information Technology, SAP, Finance, and Engineering roles, with over 23 years of experience.

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