Senior Detection & Response Engineer – AI-Driven Security

United States Digital Space LLC; Boston (MA); On-site; USD 142,000 - 212,000; Full time

Job summary

Klaviyos in Boston, MA is seeking a Senior Security Engineer to join the Detection & Response team. You will build detections, triage alerts, lead investigations, respond to incidents, perform threat hunting, and create tooling that scales automation and AI in production.

You will work across enterprise, cloud, and product environments, mentoring peers and helping to shape an engineering-first security function with a strong focus on automation, data analytics, and proactive defense.

Qualifications

• 5+ years hands-on security experience in modern cloud environments.
• 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).
• Proven experience with git/GitHub and CI/CD automations.
• Familiarity with threat actor TTPs and on-call IR.

Responsibilities

• Leverage engineering practices to develop, test, and deploy detections-as-code.
• Detect and respond to cyber threats using SIEM and cloud platforms.
• Lead end-to-end incident response investigations.
• Perform digital forensic investigations and evidence analysis.
• Automate and codify detection and response workflows.
• Build security tooling to drive automation across the D&R lifecycle.
• Improve and maintain detection pipelines and underlying systems.
• Collaborate with Threat Intelligence to identify sophisticated threats.
• Develop AI-first security systems for automated detection and response.
• Conduct threat hunts across corporate, cloud, and product environments.
• Support data engineering for the security data lake and SIEM.
• Participate in D&R on-call rotations and mentoring.

Skills

Cloud security

Threat hunting

Incident response

Detections-as-code

SQL

Splunk

Python

GitHub CI/CD

AI-first security

On-call

Tools

GitHub

CI/CD

Job description

Klaviyos in Boston, MA is seeking a Senior Security Engineer to join the Detection & Response team. You will build detections, triage alerts, lead investigations, respond to incidents, perform threat hunting, and create tooling that scales automation and AI in production.

You will work across enterprise, cloud, and product environments, mentoring peers and helping to shape an engineering-first security function with a strong focus on automation, data analytics, and proactive defense.