Senior Software Engineer

Overview

Our Federal Government client is seeking Senior Software Engineers to deliver secure, scalable applications across Java, .NET and modern integration platforms. You’ll advance DevOps practices, optimise data models, and ensure robust system integration through RESTful APIs that support critical services.

Responsibilities

• Develop, maintain and enhance applications across Java (Spring MVC), .NET (Entity Framework) and integration platforms (Mulesoft / ESB).
• Design and implement RESTful APIs and integration points that are secure, scalable and resilient.
• Implement CI / CD using tools such as Azure Pipelines and Jenkins.
• Analyse and optimise SQL and data models for performance, integrity and efficient access.
• Write unit tests and support test automation (e.g. Karate, Gatling).
• Produce clear technical, specification and compliance documentation.
• Participate in agile ceremonies and collaborate closely in a complex technical environment—proactively communicating, asking clarifying questions and driving problem-solving.
• Multi-Stack Development Proficiency – Java (Spring MVC), .NET (Entity Framework), Mulesoft / ESB.
• API & Integration Design – robust, scalable, secure RESTful APIs and system integration.
• DevOps Implementation – CI / CD with Azure Pipelines, Jenkins.
• Testing & Automation – unit testing; contribution to automation with Karate, Gatling.
• Technical Documentation – clear, accurate, up-to-date artefacts.
• Baseline level security clearance.
• Experience with CRM platforms (especially Salesforce).
• Exposure to digital transformation in complex, regulated environments.
• Frontend experience with React / Angular / Vue.

How to apply

Ready to make an impact? Apply via LinkedIn with your CV + 1-page pitch against the essential & desirable criteria. Shortlisting is underway—early applications encouraged.

At Marvel Professional Services, we are dedicated to nurturing a diverse, equitable, and inclusive workplace. As advocates of Equal Opportunity Employment, we aim to cultivate a culture that values and empowers every employee, irrespective of their cultural heritage, age, gender identity, neurodiversity, disability, family responsibilities, religious beliefs, or sexual orientation. We encourage applications from veterans, individuals returning from career breaks, persons with disabilities, and those identifying as Aboriginal and Torres Strait Islander.

Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Engineering and Information Technology

Industries

IT Services and IT Consulting

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