Senior Security Engineer- Cloud /Sec Ops- fast moving venture

Bluefin Resources Pty; Sydney; Hybrid; AUD 150,000 - 200,000; Full time

Job summary

Bluefin Resources Pty is seeking a Senior Security Engineer for a 6-month contract with hybrid in Sydney. The role covers cloud security, security operations, and DevSecOps across multiple ventures, with Azure emphasis and some AWS exposure.

You’ll work closely with cross-functional teams to implement security controls, automate configurations, and guide stakeholders on risk-aware security practices. Strong background in fintech or regulated environments is highly valued.

Qualifications

• Senior-level, hands-on experience across security engineering.
• Strong cloud security in Microsoft Defender/Sentinel/Entra ecosystems.
• Background in Sec Ops and security automation.
• Experience with DevSecOps and infrastructure as code (Terraform preferred).
• Understanding of detection engineering, vulnerability management and security operations.
• Experience in fintech or regulated environments is highly regarded.

Responsibilities

• Lead and deliver cyber security initiatives across a varied portfolio of digital ventures.
• Strengthen cloud security controls across Azure environments mostly with some AWS.
• Support security operations, including detection engineering and improvements across Microsoft Sentinel and Microsoft Defender.
• Contribute to DevSecOps automation and manage security configuration through code.
• Work with identity and access technologies, including Microsoft Entra.
• Assess priorities, respond to changing demands and elevate risks constructively.
• Partner with technical and business stakeholders to provide practical security guidance.
• Work independently from broad direction while collaborating closely with a small, multidisciplinary team.

Skills

Security engineering

Cloud security (Microsoft ecosystem)

Security operations

DevSecOps

Vulnerability management

Detection engineering

Regulated environments experience

Microsoft Defender

Microsoft Sentinel

Microsoft Entra

Tools

Terraform

Job description

A leading fast moving venture environment back by a major bank is seeking a Senior Security Engineer for an initial 6 month contract likely to extend. This is a hybrid role- 50% in office.
The team supports seven ventures with different products, customers, technology stacks and operating models, covering cloud security, DevSecOps, security engineering, architecture, security operations, risk and advisory.
Responsibilities:

• Lead and deliver cyber security initiatives across a varied portfolio of digital ventures.
• Strengthen cloud security controls across Azure environments mostly with some AWS.
• Support security operations, including detection engineering and improvements across Microsoft Sentinel and Microsoft Defender.
• Contribute to DevSecOps automation and manage security configuration through code.
• Work with identity and access technologies, including Microsoft Entra.
• Assess priorities, respond to changing demands and elevate risks constructively.
• Partner with technical and business stakeholders to provide practical security guidance.
• Work independently from broad direction while collaborating closely with a small, multidisciplinary team.

Key Skills / Experience:

• Senior-level, hands-on experience across security engineering,
• Strong cloud security - Microsoft security ecosystem, particularly Microsoft Defender, Sentinel and Entra.
• Strong Sec Ops background
• Experience with DevSecOps practices, security automation and infrastructure as code; Terraform exposure is highly regarded.
• Sound understanding of detection engineering, vulnerability management and security operations.
• Experience in fintech, financial services or another regulated environment- Highly Regarded