Senior Software Engineer

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Silentium Defence is delivering world-leading passive radar and advanced sensing technology to support Defence, national security, and space domain awareness. As we scale our engineering capability, we're expanding the Applications & Services Team — the software backbone that powers our operations.

The Opportunity

We’re seeking a Senior Software Engineer who thrives in complexity, simplifies through architecture, and builds reliable internal systems that matter.

This role is a key technical leader responsible for designing, building, and maintaining the internal applications, integrations, and platform services that support research, trials, production, and delivery operations across Silentium.

You’ll collaborate with cross-functional teams, set engineering standards, mentor others, and ensure our software foundations are scalable, maintainable, and operationally ready.

What You’ll Do

Architect systems, data flows, and integration patterns

Improve code quality, documentation, testing, and operational readiness across the stack

Manage reliability, observability, and system support more proactively via tooling and automation

Collaborate with Radar, Research, Production, Trials & Business teams to deliver fit-for-purpose solutions

Mentor other engineers, improving capability and standards across the organisation

Identify and mitigate technical risks early, especially legacy, unclear requirements, and cross-team dependencies

Success Looks Like

Deliver stable, documented, and operationally ready systems

Reduce friction and support load through tooling, automation, and better design

Raise engineering standards via mentoring and technical leadership

Support quarterly objectives and strategic initiatives (OKRs, NTOs, production)

What You Bring

Degree in Software Engineering, Computer Science, Engineering or similar

5+ years’ professional software engineering experience

Strong architectural thinking and systems design abilityt Excellent communication and stakeholder engagement skills

Ability to break complexity into simple, reliable, maintainable solutions

Ownership mindset and commitment to reliable, well-tested software

Leadership qualities and willingness to mentor and unblock others

How You Work

Your behaviours matter as much as your code. We’re looking for engineers who:

Communicate early, clearly, and constructively

Mentor others and uplift team capability

Use data to make decisions

Deliver end‑to‑end outcomes

Why Silentium Defence?

Here, your work contributes to real national capability, not just product features. You will:

Work at the intersection of Defence, space, software, and advanced sensing

See your software drive real systems in trials, production, and deployment

Influence architecture, standards, and engineering culture

Grow with a scaling company expanding into global markets

If you're a senior engineer who wants to build meaningful systems, simplify complexity, and uplift engineering capability — we’d love to hear from you.

Due to the nature of our work within the Defence industry, applicants must be Australian Citizens and eligible to obtain and maintain a (NV1) level security clearance, only applicants who meet these mandatory requirements will be considered.

How to Apply:

Click “ Apply Now ” to submit your CV and cover letter outlining your suitability for this opportunity.

please note applications submitted to us via email will not be progressed further for consideration)

Applications close: 5:00pm Tuesday 3 February 2026

Silentium Defence is an equal‑opportunity employer that values diversity of thought, background, and experience. We foster a respectful and collaborative workplace where every team member is encouraged to contribute to our shared mission. Due to the nature of our work, applicants must be Australian citizens and eligible to obtain and maintain a Defence security clearance.

Recruitment Agency Disclaimer: Silentium Defence does not accept unsolicited resumes or candidate referrals, and we will not be responsible for any fees associated with unsolicited submissions.

Unlock job insights Your application will include the following questions:

Are you an Australian Citizen?

Do you currently hold or are you willing to obtain an Australian Government Security Clearance (AGSVA)?

What motivated you to apply for this position at Silentium Defence?

What is your current notice period?

Do you have any restrictions (visa, work rights, legal, medical) that may affect your ability to work in Australia?

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