Java Developer - API/MuleSoft

CareCone Group; City of Melbourne; On-site; AUD 110,000 - 160,000; Full time

Job summary

CareCone Group is seeking a Senior Java Software Engineer to design, develop, and deliver scalable APIs and microservices using Java, Spring Boot, and MuleSoft. You will collaborate with architects, product teams and stakeholders to modernise legacy environments and enable secure, high-performance integrations.

Responsibilities include building API-led connectivity, developing specifications, and supporting CI/CD pipelines across cloud, on-prem, and hybrid setups.

Qualifications

• Design RESTful APIs and microservices using Java/Spring Boot.
• Develop MuleSoft integrations, APIs and workflows.
• Build secure, scalable enterprise integrations across cloud/on-prem environments.

Responsibilities

• Design and develop RESTful APIs and microservices using Java and Spring Boot.
• Develop and support MuleSoft integration solutions, APIs and workflows.
• Build scalable and secure integrations across complex enterprise systems.
• Contribute to API-led integration and microservices architectures.
• Develop API specifications, models and documentation.
• Perform unit and integration testing, code reviews, and troubleshooting.

Tools

Java 8+

Spring Boot

MuleSoft Anypoint Platform

Microservices

OpenAPI/Swagger

API security

CI/CD

Docker

Kubernetes

MongoDB

SQL

NoSQL

Event-driven

Serverless

Postman

React.js

Node.js

API management

Messaging

Job description

As a Senior Java Software Engineer, you will design, develop, and deliver scalable APIs, microservices, and integration solutions using Java, Spring Boot, and MuleSoft.

You’ll work closely with architects, developers, product teams and business stakeholders to build secure, resilient and high-performing integration solutions, connecting applications and modernising legacy environments.

Key Responsibilities

• Design and develop RESTful APIs and microservices using Java and Spring Boot
• Develop and support MuleSoft integration solutions, APIs and workflows
• Build scalable and secure integrations across complex enterprise systems
• Contribute to API-led integration and microservices architectures
• Develop API specifications, models and supporting documentation
• Perform unit testing, integration testing, code reviews and troubleshooting
• Work with architects and technical teams on solution design and integration patterns
• Support CI/CD pipelines and DevOps-driven delivery
• Integrate applications across cloud, on-premise and hybrid environments
• Support legacy modernisation and migration to API-led and cloud-native architectures

Core Technical Skills

• Strong commercial experience with Java 8+ and Spring/Spring Boot
• MuleSoft / Anypoint Platform development and integration experience
• Experience with MuleSoft API-led connectivity and integration patterns
• Strong understanding of microservices architecture
• Experience with Swagger/OpenAPI and Postman
• Experience with API security, governance and best practices
• Strong understanding of enterprise integration patterns

Additional Experience

• Docker and Kubernetes
• SQL and NoSQL databases, including MongoDB
• Event-driven and serverless architectures
• CI/CD and DevOps practices
• API management platforms and enterprise middleware
• Experience with messaging technologies and distributed systems
• Exposure to Node.js, React.js or other modern technologies is desirable