Senior Security Engineer; Detection and Response

Requirements

• 5+ years of experience in software, security, and/or data engineering
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• Automation-first and AI-first approach for all work performed
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• Experience with centralized logging, data lakes, and SIEM solutions
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• Familiarity with large-scale data pipelines and data engineering techniques
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• Proficient in programming languages to automate / build (e.g., Python, Go or similar)
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• Proven experience with git/Git Hub and CI/CD automations
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• Familiarity with tactics, techniques, and procedures used by threat actors
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• Experience being part of detection and response or incident response on-call
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• Strong passion for continuous learning and staying updated on evolving technology
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• Strong oral and written communication skills
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• Team player with a strong, self-managing work ethic
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• We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements. If you’re a close but not exact match with the description, we hope you’ll still consider applying

• Klaviyo is looking for a Senior Security Engineer to add to our growing Detection and Response (D&R) Team. This is a hands-on technical role that involves building and maintaining secure, reliable, and scalable detection and response systems to enhance our security observability capabilities
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• This role will also be responsible for participating in full end-to-end detection development and response lifecycle and support with threat response operations
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• As a Senior Security Engineer, you will have the opportunity to leverage your security and engineering skills to provide thought leadership, solve complex security challenges and ultimately improve Klaviyo’s overall security posture
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• Build systems that facilitate security observability for detection and response
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• Develop AI-first security systems to automate detection and response operations
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• Onboard, normalize and optimize security logging data for large-scale data analysis, detection engineering, deployment of ML models, and efficient querying during incidents
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• Develop high-fidelity rule-based and/or ML-based detections as code
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• Respond to security alerts, cyber threats, and security incidents
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• Drive end-to-end incident response investigations
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• Automate and codify detection and response workflows and processes
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• Conduct ad-hoc threat hunts and be an active member of D&R on-call rotations