Senior Security Engineer – Microsoft Sentinel & Automation (NV1 Cleared)

at; City of Melbourne; Hybrid; AUD 125,000 - 150,000; Full time

Job summary

A leading tech services firm is seeking a Senior Security Engineer to lead security engineering efforts using Microsoft Sentinel. This hybrid role involves optimizing SIEM platforms, designing automation workflows, and mentoring junior engineers. Candidates should have over 5 years of security experience, NV1 clearance, and expertise in DevSecOps practices. Join a dynamic team and contribute to innovative tech projects while enjoying a supportive and flexible work environment.

Benefits

Supportive working environment

Continuous learning and upskilling

Flexible work arrangements

Diversity and inclusion values

Cutting-edge technology exposure

Qualifications

• 5+ years in SOC or security engineering roles.
• NV1 Clearance or ability to obtain it.
• Client-centric and collaborative mindset.

Responsibilities

• Provide technical leadership across multiple enterprise clients.
• Optimise Microsoft Sentinel performance.
• Develop analytics rules and hunting queries.
• Codify security solutions and automate workflows.
• Engineer SOAR playbooks and streamline incident response.
• Govern RBAC and apply zero trust principles.

Skills

SIEM expertise (Microsoft Sentinel preferred)

KQL mastery

Detection engineering

Log ingestion (AMA + DCRs)

DevSecOps (Terraform/Bicep)

CI/CD pipelines

Logic Apps

Azure Functions

PowerShell

Python

Job description

Senior Security Engineer – Microsoft Sentinel & Automation (NV1 Cleared)

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Join LAB3’s Security & SOC team as a Senior Security Engineer and take ownership of engineering, codifying, and operating modern security platforms across diverse client environments. You’ll work with cutting-edge Microsoft technologies including Microsoft Sentinel, Defender XDR, and the broader Microsoft security stack to deliver secure, scalable, and automated solutions that protect businesses from evolving threats.

This is a hands‑on technical role where you’ll design and maintain log ingestion pipelines, build high‑fidelity detections, automate response workflows, and embed DevSecOps practices that improve SOC efficiency, resilience, and cost‑effectiveness.

This is a Hybrid working opportunity based in Melbourne or Canberra

What You’ll Do

• Security Engineering: Provide technical leadership across multiple enterprise clients, ensuring secure architecture and high standards of delivery.
• Own SIEM Platforms: Optimise Microsoft Sentinel performance, tune detections, troubleshoot issues, and manage cost strategies without compromising security.
• Build Detection Content: Develop analytics rules, hunting queries, and UEBA use cases mapped to MITRE ATT&CK; reduce false positives while maintaining accuracy.
• Drive DevSecOps: Codify security solutions using IaC (Terraform/Bicep), manage CI/CD pipelines, and enforce Git workflows for automation and version control.
• Automate Response: Engineer SOAR playbooks (Logic Apps), Azure Functions, and secure API integrations to streamline incident response.
• Ensure Resilience: Govern RBAC, Key Vault secrets, and service principals; apply zero trust principles and timely patching for connectors and agents.
• Collaborate & Mentor: Partner with SOC analysts, platform engineers, and client teams; mentor junior engineers and uplift documentation standards.

What We’re Looking For

• Experience: 5+ years in SOC or security engineering roles with strong SIEM expertise (Microsoft Sentinel preferred).
• NV1 Clearance or ability to obtain NV1 Clearance
• Technical Skills:
  • KQL mastery, detection engineering, and log ingestion (AMA + DCRs).
  • DevSecOps: Terraform/Bicep, Azure DevOps/GitHub, CI/CD pipelines.
  • Automation: Logic Apps, Azure Functions, secure API integrations.
  • Microsoft Security Stack: Defender XDR, Defender for Cloud, Entra ID, Key Vault.
  • Scripting: PowerShell, Python, Regex.
• Mindset: Client‑centric, collaborative, and passionate about secure automation and continuous improvement.

What’s in it for you?

• Become part of Australasia’s largest Azure engineering practice where you can sharpen your expertise and contribute to the latest innovations in tech and services. #thinkahead.
• Be part of a company that is leading the way in specialised areas and partners on high profile client projects – we are popping new logos every day!
• Work with a 13‑time Gold and 3‑time Advanced Specialisation Microsoft Partner. You only get to this level with the industry's leading tech professionals – we are proud to have some of the best. #teamup.
• Thrive in a team who is always learning, always innovating and making waves on a global scale. We will support your learning and upskilling from Day 1 so you too can be at the forefront of cutting edge technology! #standout.
• Be part of a supportive working environment that values inclusion, flexibility, diversity and differences. We actively encourage and embrace all cultural backgrounds, genders, abilities and circumstances. #betrue.
• We work flexibly and recognise the importance of your overall wellbeing – we are committed to finding the right balance and embrace a hybrid working model across LAB3!
• Ultimately, we will help you to fear less, achieve more in a fast‑paced, innovative and cool environment – are you ready to accept the challenge? #fearlessachievemore.

Apply Now!!