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About the Role
Klaviyo is seeking a Senior Security Engineer to join their Detection & Response Team. This role involves full-cycle detection and response, using software development practices to build detections, triage alerts, lead investigations, respond to incidents, perform threat hunting, and develop automation tooling. The engineer will tackle complex security challenges across enterprise, cloud, and product environments, shaping how an engineering-first D&R function utilizes automation and AI at scale.
Responsibilities
- Leverage engineering practices to develop, test, and deploy high-fidelity rule-based and anomaly-based detections-as-code
- 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
- Automate and codify detection and response workflows and processes
- Build security tooling to drive automation across D&R lifecycle
- Improve and maintain detection and response pipelines and underlying systems
- Work with the 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
- Be an active member of D&R on-call rotations
- Coach and mentor security engineers within the detection & response team
Requirements
- 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)
- Proven experience with git/GitHub and CI/CD automations
- Familiarity with tactics, techniques, and procedures used by threat actors
- Experience being part of detection and response or incident response on-call
- Engineering-first and AI-first approach for all work performed
- Strong passion for continuous learning and staying updated on evolving technology
- Strong oral and written communication skills
- Team player with a strong, self-managing work ethic
Skills
- Python
- Go
- SQL
- Splunk
- git
- GitHub
- CI/CD
Location
- Remote
Work Type
- Full-time
- Hybrid
Experience Level
- Senior
Salary/Compensations
- £84,000—£126,000 GBP
Benefits
- Comprehensive range of health, welfare, and wellbeing benefits
- Participation in the company’s annual cash bonus plan
- Equity
- Sign-on payments
About the Company
- Klaviyo empowers creators to own their destiny by making first-party data accessible and actionable. They see limitless potential for their technology to nurture personalized experiences in ecommerce and beyond. They seek ambitious and collaborative teammates who stay focused on delighting customers.
Equal Opportunity
- Klaviyo is committed to a policy of equal opportunity and non-discrimination. We do not discriminate on the basis of race, ethnicity, citizenship, national origin, color, religion or religious creed, age, sex (including pregnancy), gender identity, sexual orientation, physical or mental disability, veteran or active military status, marital status, criminal record, genetics, retaliation, sexual harassment or any other characteristic protected by applicable law.