Security Engineer, Threat Response



London, UK
Posted on Thursday, March 14, 2024

At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. 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. Want to learn more about life at Klaviyo? Visit to see how we empower creators to own their own destiny.

Klaviyo is looking for a security engineer to add to our growing Security Intelligence & Operations Team. This is a hands-on role that involves responding to cyber threats and incidents, performing digital forensics and investigations, and automating threat response playbooks. As a member of the team, you will have the opportunity to work on complex security challenges and work with engineers across the organization to improve the security posture of Klaviyo’s product, corporate, and cloud environments.

What you’ll be doing

  • Triage and respond to cyber threats, alerts and incidents
  • Drive end-to-end incident response investigations
  • Perform host and network based log analysis in a cloud first environment
  • Develop and codify threat response processes and playbooks
  • Perform digital forensic investigations to include analysis, collection, and preservation of evidence
  • Build security tools to automate threat response tasks
  • Develop detailed post incident and investigation reports
  • Collaborate with detection engineers to identify threat detection use cases
  • Work with engineering stakeholders to improve security posture post investigations

We’d love to hear from you if you have:

  • 2+ years of hands-on security operations experience in cloud-native environments
  • Experience in triaging and responding to cyber threats, alerts, and incidents
  • Experience in log analysis, incident response and/or digital forensics
  • Experience with SIEM and centralized data lake logging (e.g., Splunk, Snowflake)
  • Experience with Security Orchestration, Automation, and Response (SOAR)
  • Experience securing cloud environments such as AWS, GCP, and/or Azure
  • Proficient in programming languages to automate/build features (e.g., Python, Go)
  • Understand techniques, tools and procedures used by threat actors
  • Strong fundamentals of linux and macOS
  • Automation-first approach for all work performed
  • Strong oral and written communication skills
  • Team player with a strong self-managing work ethic
  • Eligibility to work in the UK without restriction

Klaviyo in EMEA : As part of the Klaviyo team you will be looked after with some great benefits locally in EMEA including equity for all, private health cover for you and discounted for your household, financial and professional coaching, a generous annual learning allowance (£2.5k), 22 weeks full pay primary care giver leave (16 week secondary) and free books (yes, any books!) to name a few.

#LI-Hybrid #LI-ME1

The pay range for this role is listed below. Sales roles are also eligible for variable compensation. This role is also eligible for competitive benefits and perquisites, subject to company policy and applicable law

Base Pay Range in Local Currency:
£68,000£102,000 GBP

Get to Know Klaviyo

We’re Klaviyo (pronounced clay-vee-oh). We empower creators to own their destiny by making first-party data accessible and actionable like never before. We see limitless potential for the technology we’re developing to nurture personalized experiences in ecommerce and beyond. To reach our goals, we need our own crew of remarkable creators—ambitious and collaborative teammates who stay focused on our north star: delighting our customers. If you’re ready to do the best work of your career, where you’ll be welcomed as your whole self from day one and supported with generous benefits, we hope you’ll join us.

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.

IMPORTANT NOTICE: Our company takes the security and privacy of job applicants very seriously. We will never ask for payment, bank details, or personal financial information as part of the application process. All our legitimate job postings can be found on our official career site. Please be cautious of job offers that come from non-company email addresses (, instant messaging platforms, or unsolicited calls.

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