Senior Cyber Security Engineer — Hands-on, Automation & Impact

The Decipher Bureau; Sydney; On-site; AUD 120,000 - 200,000; Full time

Job summary

The Decipher Bureau is seeking a Senior Cyber Security Engineer to deliver and continuously improve security controls across on‑prem, cloud and SaaS environments in a heavily regulated sector. You will work hands‑on within the Security Engineering team to tackle complex security challenges and help shape engineering standards and solutions.

This role emphasizes technical depth, automation, and knowledge sharing across the team, with opportunities to mentor engineers and influence security

Qualifications

• 6+ years in security engineering or equivalent
• Experience solving complex problems independently in regulated environments
• Hands-on in diverse security domains including cloud/SaaS, network and endpoint security
• Ability to translate policy and risk into practical engineering outcomes
• Excellent communication with stakeholders at varying levels of seniority

Responsibilities

• Design, build, configure, test and deploy security controls across on-prem, cloud and SaaS environments
• Own and optimise security platforms including architecture, configuration and vendor management
• Design, review and govern network security policies, firewall rules and secure connectivity
• Apply scripting, automation and DevOps-style practices to improve efficiency and auditability
• Manage SIEM onboarding, tune detection use cases and support vulnerability remediation
• Mentor other engineers and contribute to architecture and governance forums

Skills

SASE / network security

Firewall & network policy

Email security

EDR

SIEM / security monitoring

Cloud / SaaS security

Vulnerability remediation

Scripting / automation

DevOps-style practices

Education

Tertiary qualifications

Tools

Netskope

Mimecast

CrowdStrike

SIEM tooling

Azure

AWS

Job description

The Decipher Bureau is seeking a Senior Cyber Security Engineer to deliver and continuously improve security controls across on‑prem, cloud and SaaS environments in a heavily regulated sector. You will work hands‑on within the Security Engineering team to tackle complex security challenges and help shape engineering standards and solutions.

This role emphasizes technical depth, automation, and knowledge sharing across the team, with opportunities to mentor engineers and influence security