Senior Security Engineer

About the role

Testmu AI runs a global cloud testing platform: thousands of real devices, browser VMs and CI pipelines serving engineering teams worldwide. We are hiring a hands-on Senior Security Engineer to own security across our cloud (AWS, Azure), on-prem device farms, corporate IT (Google Workspace) and the edge (Cloudflare/WAF).

What you'll do

• Design, deploy and operate our SIEM end to end: log sources, ingestion pipelines, parsing, retention, detection rules, alert routing and dashboards
• Onboard logs from AWS (CloudTrail, GuardDuty, VPC Flow), Azure (Activity, Defender), Cloudflare, Google Workspace, Linux/Windows endpoints, firewalls and Kubernetes
• Write and tune detection rules mapped to MITRE ATT&CK; drive alert noise down and signal up
• Own incident response: triage, containment, root cause, post-incident reviews and runbooks
• Cloud & infrastructure security (AWS, Azure, on-prem)

What you need

• 4–8 years in cybersecurity
• SIEM
• Vulnerability assessment
• Firewalls
• IAM
• AWS
• Linux
• Any graduate

Good to have

• CISSP
• iOS
• Data privacy
• Android
• Azure
• Kubernetes

What you get