Senior Security Engineer, Threat Detection

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 careers.klaviyo.com to see how we empower creators to own their own destiny.

Klaviyo is looking for a Senior Security Engineer to add to our growing Detection Engineering Team. This is a hands-on technical role that involves solving complex security problems, threat detection, log ingestion and management, security orchestration and automation, and developing new tools to take the Detection & Response Program to the next level. As a Senior Security Engineer you will have the opportunity to provide detection engineering thought leadership, take ownership of end-to-end detection development lifecycle, and execute on core detection and response engineering efforts. 

How you will make a difference:

• Develop, test, and deploy high fidelity signature and anomaly based detections as code
• Conduct TTP-based threat models or attack path analysis to drive detection use cases
• Detect threats leveraging solutions such as  SIEM, data lake, and cloud platforms
• Automate and codify detection and response processes and playbooks
• Design, deploy and maintain extract, transform and load (ETL) data pipelines
• Leverage ETL data pipelines to onboard logging data into data lake and/or SIEM
• Build threat detection systems, tools, integrations and automations 
• Configure and optimize detection and response technologies (e.g., SIEM, EDR, IDS/IPS)
• Conduct ad-hoc threat hunts in support of SecOps, detection, automations or tools
• Collaborate across teams (site, product, engineering, IT) to understand and protect all aspects of Klaviyo cyber footprint 

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

• 6+ years of security experience in the modern cloud environments
• Hands-on experience in detection engineering 
• Hands-on experience with data science / machine learning techniques to identify threats
• Hands-on experience with SIEM and centralized logging (e.g., Splunk, Snowflake)
• Experience with extract, transform and load (ETL) data pipelines 
• Experience with detection-as-code and infrastructure-as-code
• Proficient in programming languages to automate / build (e.g., Python, Go)
• Strong understanding of tactics, techniques, and procedures used by threat actors 
• Experience with threat modeling or attack path analysis to drive detection use cases
• Knowledge of system fundamentals, OS internals, and file systems for Linux and MacOS
• Automation-first approach for all work performed
• Experience securing cloud environments such as AWS, GCP, and/or Azure
• Strong oral and written communication skills
• Team player with a strong, self-managing work ethic

The pay range for this role is listed below. Sales roles are also eligible for variable compensation and hourly non-exempt roles are eligible for overtime in accordance with applicable law. This role is eligible for benefits, including: medical, dental and vision coverage, health savings accounts, flexible spending accounts, 401(k), flexible paid time off and company-paid holidays and a culture of learning that includes a learning allowance and access to a professional coaching service for all employees.

Base Pay Range For US Locations:$156,800—$235,200 USD

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 ha