Principal Java Developer

Aspirante; Brisbane; Hybrid; AUD 150,000 - 214,000; Full time

Job summary

Aspirante is seeking a Principal Java Engineer to join a high-performing digital engineering team in Brisbane, delivering enterprise-scale technology solutions. The role focuses on Digital Identity and microservices platforms within a large organisation, collaborating with product stakeholders to shape solutions and improve platform reliability.

The contract runs to June 2027 with likely extension, offering a hybrid Brisbane CBD setup and a rate up to $132 per hour.

Qualifications

• Strong hands-on experience with Keycloak or Red Hat SSO, including platform development, extension or customisation.
• Advanced Java/JEE development experience.
• Strong experience developing reactive microservices and RESTful APIs.
• Knowledge of identity federation protocols including OAuth 2.0, OpenID Connect and SAML.
• Experience with Spring Boot, Maven and relational databases such as PostgreSQL.
• Experience working with cloud technologies, ideally AWS.
• Knowledge of containerisation and Kubernetes.
• Experience with CI/CD pipelines and automated testing.
• Understanding of secure development practices and highly available systems.

Responsibilities

• Design, develop and enhance enterprise Java applications and reactive microservices.
• Develop, customise and support Keycloak or Red Hat SSO identity management solutions.
• Implement secure authentication, authorisation and identity federation capabilities.
• Develop and maintain RESTful APIs and integrations.
• Collaborate with product managers and technical stakeholders to shape platform enhancements.
• Support highly available, secure and reliable enterprise platforms.
• Contribute to automated testing, CI/CD pipelines and DevSecOps practices.
• Drive continuous improvement across engineering practices and platform delivery.

Skills

Java

Keycloak

Reactive microservices

REST APIs

OAuth 2.0

OpenID Connect

SAML

Spring Boot

Maven

PostgreSQL

AWS

Kubernetes

CI/CD

DevSecOps

Security best practices

Job description

We are seeking an experienced Principal Java Engineer to join a high-performing digital engineering team delivering complex, enterprise-scale technology solutions.

This is an opportunity to play a key role in developing, enhancing and supporting critical Digital Identity and Microservices platforms within a large, complex organisation.

Working alongside experienced engineering professionals and product stakeholders, you will help shape technical solutions, improve platform reliability and deliver secure, scalable digital services.

• Contract to June 2027, with likely extension
• Brisbane CBD location with hybrid setup
• Paying up to $132 per hour

We are seeking an experienced Principal Java Engineer to join a high-performing digital engineering team delivering complex, enterprise-scale technology solutions.

This is an opportunity to play a key role in developing, enhancing and supporting critical Digital Identity and Microservices platforms within a large, complex organisation.

Working alongside experienced engineering professionals and product stakeholders, you will help shape technical solutions, improve platform reliability and deliver secure, scalable digital services.

• Contract to June 2027, with likely extension
• Brisbane CBD location with hybrid setup
• Paying up to $132 per hour

Key Responsibilities

• Design, develop and enhance enterprise Java applications and reactive microservices.
• Develop, customise and support Keycloak or Red Hat SSO identity management solutions.
• Implement secure authentication, authorisation and identity federation capabilities.
• Develop and maintain RESTful APIs and integrations.
• Collaborate with product managers and technical stakeholders to shape platform enhancements.
• Support highly available, secure and reliable enterprise platforms.
• Contribute to automated testing, CI/CD pipelines and DevSecOps practices.
• Drive continuous improvement across engineering practices and platform delivery.

Technical Skills & Experience To succeed in this role, you will bring:

• Strong hands-on experience with Keycloak or Red Hat SSO, including platform development, extension or customisation.
• Advanced Java/JEE development experience.
• Strong experience developing reactive microservices and RESTful APIs.
• Knowledge of identity federation protocols including OAuth 2.0, OpenID Connect and SAML.
• Experience with Spring Boot, Maven and relational databases such as PostgreSQL.
• Experience working with cloud technologies, ideally AWS.
• Knowledge of containerisation and Kubernetes.
• Experience with CI/CD pipelines and automated testing.
• Understanding of secure development practices and highly available systems.

Highly Desirable

• Experience with Verifiable Credentials and identity trust frameworks.
• GitHub Actions and automated AWS deployments.
• JUnit, Selenium or Playwright.
• HTML5, CSS frameworks and responsive UI design.
• Experience delivering solutions in Agile and DevSecOps environments.