Senior Security Engineer - Detection and Response
About The Position
Klaviyo is seeking a Senior Security Engineer to join its Detection and Response (D&R) Team. This hands-on technical role builds and maintains secure, reliable, and scalable detection and response systems that enhance security observability. The engineer participates in the full detection development and response lifecycle and supports threat response operations, applying security and engineering expertise to solve complex challenges and improve Klaviyo’s security posture. The role includes building security observability systems, developing AI-first security capabilities, preparing security logging data for analysis and incident querying, developing rule-based and/or ML-based detections as code, responding to alerts and incidents, and automating detection and response workflows. It also includes ad-hoc threat hunting and participation in D&R on-call rotations. The role may require up to 10% travel, coordinated in advance.
Requirements
- 5+ years of experience in software, security, and/or data engineering.
- An automation-first and AI-first approach to work.
- Experience with centralized logging, data lakes, and SIEM solutions.
- Familiarity with large-scale data pipelines and data engineering techniques.
- Proficiency in programming languages such as Python, Go, or similar for automation and development.
- Proven experience with Git/GitHub and CI/CD automations.
- Familiarity with tactics, techniques, and procedures used by threat actors.
- Experience as part of a detection and response or incident response on-call rotation.
- Strong oral and written communication skills.
- A team-oriented approach and strong, self-managing work ethic.
Nice To Haves
- A strong passion for continuous learning and staying updated on evolving technology.
Responsibilities
- Build systems that facilitate security observability for detection and response.
- Develop AI-first security systems to automate detection and response operations.
- Onboard, normalize, and optimize security logging data for large-scale analysis, detection engineering, ML model deployment, and efficient incident querying.
- Develop high-fidelity rule-based and/or ML-based detections as code.
- Respond to security alerts, cyber threats, and security incidents.
- Drive end-to-end incident response investigations.
- Automate and codify detection and response workflows and processes.
- Conduct ad-hoc threat hunts and participate in D&R on-call rotations.
Benefits
- The total compensation package may include participation in the annual cash bonus plan, equity, and sign-on payments.
- A comprehensive range of health, welfare, and wellbeing benefits based on eligibility.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
