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Sr InfraSec Engineer
Skills
DevopsFull-Stack DevelopmentCSFCloud SecurityISO 27001ISO StandardsIdentity And Access Management
What the job involves
The main requirements, responsibilities and hiring steps.
Requirements
- 5 to 8 years of infrastructure security or detection engineering experience
- Deep hands-on SIEM implementation or operation at scale
- Experience with log ingestion pipeline design
- Detection rule development and alert tuning experience
- Hands-on cloud security experience across AWS and or Azure
- Cloud networking controls experience
- Experience with CNAPP CSPM or cloud vulnerability management tooling
- Demonstrated incident response experience
- WAF operational experience
- Scripting proficiency in Python Bash or equivalent
Nice to have
- Technical depth
- Clear communicator
- Strong ownership
- Builder mindset
- Collaborative
Day to day
- Own ATG's infrastructure security posture across a complex multi-cloud environment, with direct responsibility for monitoring, detection, cloud governance, and perimeter controls.
- Design and operate the SIEM pipeline end to end, from log ingestion and normalization to alert tuning, detection engineering, and response workflows.
- Lead cloud security and CNAPP operations across AWS and Azure, driving posture management, vulnerability tracking, remediation coordination, and evidence gathering for compliance.
- Partner closely with DevOps, engineering, and MDR teams to improve incident response, strengthen WAF controls, and embed security into infrastructure design.