Senior AWS Security Engineer

This is an engineering role that spans the full detection and response lifecycle - leveraging software development practices to build detections, triaging alerts, lead investigations, respond to incidents, perform threat hunting, and build the tooling that keeps us from doing the same work twice. As a member of the team, you will have the opportunity to work on complex large-scale security challenges across Klaviyo’s enterprise, cloud, and product environments, and shape how an engineering-first D&R function uses automation and AI in production, at scale, alongside talented and ambitious colleagues spanning multiple regions and timezones.
Detect and respond to cyber threats using security data lake, SIEM, and cloud platforms
Respond to alerts, cyber threats, and drive end-to-end incident response investigations
Perform digital forensic investigations to include collection and analysis of evidence
Improve and maintain detection and response pipelines and underlying systems
Work with our Threat Intelligence team to identify and respond to sophisticated threats
Develop AI-first security systems to automate detection and response operations
Conduct threat hunts across corporate, cloud and product environments
Support data engineering workflows for core security data lake and SIEM platforms
5+ years of hands-on security experience in modern cloud environments
~ Experience in triaging and responding to cyber threats
~ Experience in large-scale log analysis, incident response and/or digital forensics
~ Experience with centralized security data lakes and SIEM solutions
~ Hands-on experience in writing detections-as-code
~ Solid data querying skills (e.g. SQL, Splunk)
~ Familiarity with large-scale data pipelines and data engineering techniques
~ Proficient in programming languages to automate / build (e.g., Python, Go or similar)
~ Engineering-first and AI-first approach for all work performed
~ The range displayed below reflects the minimum and maximum target salaries for the position across all our US locations. The base salary offered for this position is determined by several factors, including the applicant’s job-related skills, relevant experience, education or training, and work location.
In addition to base salary, our total compensation package may include participation in the company’s annual cash bonus plan, variable compensation (OTE) for sales and customer success roles, equity, sign-on payments, and a comprehensive range of health, welfare, and wellbeing benefits based on eligibility.
This role may require up to 10% travel for purposes such as new hire onboarding, client or partner work if applicable, team meetings, and industry events. Travel is coordinated in advance.
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