Senior Java EE Developer

Johannesburg - South Africa

Monthly Salary: Not Disclosed

Experience Required: 5years

Posted on: 9 hours ago

Vacancies: 1 Vacancy

Job Summary

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.

Required Skills:

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 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.

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.