API Engineer
Location:
Sydney/Hybrid Working
About the Opportunity
A leading global technology consultancy is seeking an experienced
API Engineer
to support a major Australian organisation operating in the banking and financial services sector.
This hands-on role will contribute to the end-to-end delivery of an API-focused program. You will work with business stakeholders, technical specialists, developers, and delivery teams to define requirements, document API solutions, and build robust, scalable integrations.
Key Responsibilities
Contribute to the end-to-end delivery of the API program.
Participate in requirements discussions with business stakeholders.
Help finalise functional specifications and interface documentation.
Work with business teams to define functional requirements for recent services.
Collaborate with technical leads and business stakeholders during reviews and sign-offs.
Document and communicate changes within an Agile delivery workplace.
Produce API requirements, designs, and functional specifications.
Apply microservices design principles to API and integration solutions.
Design and develop robust interfaces that integrate different systems and technologies.
Collaborate with development teams on technical ideas and applications.
Support internal and external consultants across workshops and delivery engagements.
Assist with the mentoring of junior consultants.
Help remediate software issues relating to code quality, security,



frameworks, and design patterns. ,
Required Skills and Experience
Previous experience delivering API frameworks and integration solutions.
Strong understanding of microservices design principles.
Commercial development experience with:
Java 8 or later
Spring Framework 5.x
Spring Boot 2.x
JUnit 5
Mockito
Java-based logging frameworks
Postman
Modern integrated development environments
Experience with infrastructure or DevOps design.
Strong API requirements, design, and functional-specification documentation skills.
Previous experience delivering technology projects within banking.
Strong debugging and problem-solving skills.
Ability to produce clean, effective code using test-driven development.
Experience addressing code-quality and application-security issues. ,
Desirable Experience
Knowledge or practical experience with the following would be advantageous:
Maven
Git
Splunk
Bamboo
Swagger
Software design patterns and standards
What's on Offer
A hands-on API engineering position based in Sydney.
Exposure to a complex banking technology environment.
The opportunity to contribute across API design, development, integration, testing, and delivery.
Collaboration with business stakeholders, developers, technical specialists, and experienced consultants.
Opportunities to support and mentor junior consultants.
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📌 Api Engineer (Sydney)
🏢 Whizdom
📍 Sydney