Senior Security Engineer - Detection & Response

About Klaviyo Klaviyo (NYSE: KVYO) is the autonomous B2C CRM. Powered by its built-in data platform and AI, Klaviyo combines marketing automation, analytics, and customer service into one unified solution, making it easy for businesses to know their customers and grow faster. Klaviyo (CLAY-vee-oh) helps over 193,000 brands like Mattel, Glossier, Daily Harvest, and Liquid Death deliver 1:1 experiences at scale, improve efficiency, and drive revenue.

Klaviyo

Klaviyo is the autonomous CRM for B2C brands, built to turn what you know about your customers into real growth.

K

klaviyo.com

1,001-5,000 employees

Marketing Services

Boston, Massachusetts

2012

Public Company

179k LinkedIn followers

Raised $1.3B

• 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 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
• Be an active member of D&R on-call rotations
• Coach and mentor security engineers within the detection & response team
• 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
• It is unlawful in Massachusetts to require or administer a lie detector test as
• a condition of employment or continued employment. An employer who violates this
• law shall be subject to criminal penalties and civil liability.
• Our salary range reflects the cost of labor across various U.S. geographic
• markets. 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.

• 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.
• Your recruiter can provide more details about the specific salary/OTE range for
• your preferred location during the hiring process.
• Base Pay Range For US Locations
• $141,600—$212,400 USD
• 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.
• 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.
• AI fluency at Klaviyo includes responsible use of AI (including privacy,
• security, bias awareness, and human-in-the-loop). We provide accommodations as
• needed.
• By participating in Klaviyo’s interview process, you acknowledge that you have
• read, understood, and will adhere to our Guidelines for using AI in the Klaviyo
• interview Process [https://www.klaviyo.com/careers/ai-guidance]. For more
• 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),
• 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 (@klaviyo.com), instant
• messaging platforms, or unsolicited calls.
• By clicking "Submit Application" you consent to Klaviyo processing your Personal