Job Description

API Engineer

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Location: Sydney/Hybrid Working

About the Prospect n

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.

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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 n

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- Contribute to the end-to-end delivery of the API program.
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- Participate in requirements discussions with business stakeholders.
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- Help finalise functional specifications and interface documentation.
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- Work with business teams to define functional requirements for new services.
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- Collaborate with technical leads and business stakeholders during reviews and sign-offs.
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- Document and communicate changes within an Agile delivery environment.
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- Produce API requirements, designs, and functional specifications.
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- Apply microservices design principles to API and integration solutions.
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- Design and develop robust interfaces that integrate different systems and technologies.
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- Collaborate with development teams on technical ideas and applications.
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- Support internal and external consultants across workshops and delivery engagements.
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- Assist with the mentoring of junior consultants.
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- Help remediate software issues relating to code quality, security, frameworks,



and design patterns. ,
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Required Skills and Experience nn
- Previous experience delivering API frameworks and integration solutions.
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- Strong understanding of microservices design principles.
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- Commercial development experience with: n n
- Java 8 or later
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- Spring Framework 5.x
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- Spring Boot 2.x
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- JUnit 5
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- Mockito
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- Java-based logging frameworks
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- Postman
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- Modern integrated development environments
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- Experience with infrastructure or DevOps design.
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- Strong API requirements, design, and functional-specification documentation skills.
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- Previous experience delivering technology projects within banking.
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- Strong debugging and problem-solving skills.
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- Ability to produce clean, efficient code using test-driven development.
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- Experience addressing code-quality and application-security issues. ,
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Desirable Experience n

Knowledge or practical experience with the following would be advantageous:

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- Maven
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- Git
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- Splunk
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- Bamboo
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- Swagger
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- Software design patterns and standards
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What’s on Offer nn
- A hands-on API engineering position based in Sydney.
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- Exposure to a complex banking technology environment.
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- The opportunity to contribute across API design, development, integration, testing, and delivery.
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- Collaboration with business stakeholders, developers, technical specialists, and experienced consultants.
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- Opportunities to support and mentor junior consultants.
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📌 API Engineer (Sydney)
🏢 Whizdom
📍 Sydney