API developer (Java Spring boot)

Kaizen Global Technologies; City of Brisbane; On-site; AUD 120,000 - 160,000; Full time

Job summary

Kaizen Global Technologies is seeking a Senior Java / J2EE Developer to design and build scalable, cloud-native microservices in a fast-paced environment.

You will work with AWS, Kubernetes, Spring Boot, RESTful APIs, and modern DevOps practices to deliver robust software solutions. Strong collaboration with agile teams and a focus on quality are essential.

Experience with Docker, CI/CD, and relational/noSQL databases will be highly valued.

Qualifications

• Strong proficiency in Java 8+ and J2EE (Servlets, JSP, JPA, JMS).
• Hands-on experience with Spring Boot 3.x (Spring MVC, Spring Data, Spring Security).
• Strong experience building RESTful APIs and microservices.
• Solid understanding of OOP, design patterns, and API security (OAuth2, JWT).
• Experience with AWS (EKS, EC2, S3, API Gateway).
• Experience with Kubernetes / Amazon EKS (deployments, services, config maps, secrets).
• Experience with Kafka (producers, consumers, topics, partitions, offsets).
• Experience with CI/CD pipelines (Jenkins, GitHub Actions, or AWS CodePipeline).
• Proficiency with Docker and containerization best practices.
• Experience with PostgreSQL/MySQL and NoSQL (DynamoDB or MongoDB).
• Experience with monitoring & observability tools (Grafana, New Relic, logs, tracing).
• Strong problem-solving skills and ability to work in Agile teams.

Responsibilities

• Design and develop RESTful APIs using Java/J2EE and Spring Boot.
• Implement microservices and event-driven integrations.
• Deploy and manage services on Kubernetes / AWS EKS.
• Ensure API security, performance, and reliability.
• Collaborate with cross-functional teams and maintain technical documentation.

Skills

Java

J2EE

Spring Boot

RESTful APIs

Microservices

AWS

Kubernetes

Docker

CI/CD

PostgreSQL/MySQL

NoSQL

OAuth2/JWT

Agile teams

Tools

Jenkins

GitHub Actions

AWS CodePipeline

Docker

Kubernetes

Grafana

New Relic

Job description

We are seeking an experienced Senior Java / J2EE Developer to design and build scalable, cloud-native microservices.

Mandatory Requirements

• Strong proficiency in Java 8+ and J2EE (Servlets, JSP, JPA, JMS)
• Hands-on experience with Spring Boot 3.x (Spring MVC, Spring Data, Spring Security)
• Strong experience building RESTful APIs and microservices
• Solid understanding of OOP, design patterns, and API security (OAuth2, JWT)
• Experience with AWS (EKS, EC2, S3, API Gateway)
• Strong experience with Kubernetes / Amazon EKS (deployments, services, config maps, secrets)
• Experience with Kafka (producers, consumers, topics, partitions, offsets)
• Experience with CI/CD pipelines (Jenkins, GitHub Actions, or AWS CodePipeline)
• Proficiency with Docker and containerization best practices
• Experience with PostgreSQL/MySQL and NoSQL (DynamoDB or MongoDB)
• Experience with monitoring & observability tools (Grafana, New Relic, logs, tracing)
• Strong problem-solving skills and ability to work in Agile teams

Key Responsibilities

• Design and develop RESTful APIs using Java/J2EE and Spring Boot
• Implement microservices and event-driven integrations
• Deploy and manage services on Kubernetes / AWS EKS
• Ensure API security, performance, and reliability
• Collaborate with cross-functional teams and maintain technical documentation