Incident Responder

About Last Pass
Last Pass delivers Secure Access Essentials, helping individuals and organizations manage and protect access to AI, applications, and credentials straight from the browser. Trusted by more than 100,000 businesses and millions of users worldwide, Last Pass blends strong security with everyday simplicity. From discovering unapproved AI and applications to reducing login friction and securing credentials across the business, Last Pass delivers on its mission to give everyone seamless access to everything they need to work, move fast, and stay protected as their environments evolve.

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In this senior role, you will lead investigations end-to-end and advance our detection capabilities. You will own MSSP escalations, conduct threat hunts, and apply AI-assisted approaches — helping Last Pass deliver on its mission to give everyone seamless access to everything they need to work, move fast, and stay protected.

Our Security Intelligence & Response team operates at the front line of defending our cloud environments, customers, and platform. We are a collaborative, high-trust team where responders work closely across incident response, detection engineering, and threat intelligence — sharing findings, sharpening capabilities, and holding each other to a high standard in a fast-moving operational environment.

If you are passionate about complex problem solving and motivated by scale, then this is the role for you!

You will partner closely with the Detection Engineering team to build and tune analytics in Microsoft Sentinel, and collaborate with the broader Security Intelligence & Response team on threat hunts and investigations. You will also work with our Managed Security Service Provider, engaging their analysts to manage escalations and close gaps in coverage.

• Own security incidents end-to-end — receive and validate MSSP escalations, lead investigations, coordinate response, and drive containment, eradication, and recovery
• Conduct proactive threat hunts across cloud and endpoint telemetry, turning findings into durable detections that improve coverage and fidelity.
• Build and tune detection content in Microsoft Sentinel and across the cloud security stack in close partnership with the Detection Engineering team
• Develop and improve enrichment and response workflows to reduce manual effort, accelerate response times, and scale the team's impact
• Apply AI-assisted approaches to triage, investigation, detection authoring, and automation — helping the team adopt these capabilities responsibly and effectively
• Analyze logs and telemetry from cloud platforms, identity systems, endpoints, and network sources to detect and reconstruct attacker activity
• Document investigations thoroughly — capturing actions, evidence, timelines, and conclusions — to a standard that supports both technical follow-up and stakeholder communication
• Manage and strengthen the MSSP relationship by providing feedback on escalation quality, tuning alerting thresholds, and contributing to lessons-learned reviews

• Proven experience in incident response and security operations in cloud-native environments, with hands-on depth in Azure and AWS
• Proven experience with Microsoft Sentinel or a comparable SIEM for investigation and detection engineering, including authoring and tuning detection content
• Proven experience working with an MSSP — managing escalations, providing quality feedback, and closing gaps in coverage — whether as client or vendor
• Proven experience conducting threat hunts and building automation in support of security operations, including SOAR playbooks, scripting, and enrichment workflows
• Strong command of attacker tactics, techniques, and procedures, the cyber kill chain, and MITRE ATT&CK, with solid grounding in networking fundamentals,…