Incident Responder

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 LastPass 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.

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, cloud security domains, and identity systems including Active Directory and Entra ID
• Communicates clearly with both technical and non-technical stakeholders, exercises sound judgment under pressure, and operates effectively both independently and as part of a collaborative team
• Commitment to continuous improvement — proactively contributing to detections, runbooks, tooling, and operational processes that raise the bar for the team

• Familiarity with the Intelligence-Driven Incident Response approach, integrating threat intelligence into the detection, analysis, and response lifecycle
• Experience interpreting network traffic and performing packet captures using tools such as tcpdump or Wireshark
• Background in relevant industry certifications such as GCIH, GCIA, GCFA, AZ-500, or AWS Security Specialty

• The leader in secure access
• High-growth, collaborative environment with inclusive teams
• Remote-first culture
• Competitive compensation
• Flexible Paid Time Off policies, including but not limited to: Quarterly Self-Care Days (4 extra paid days off annually) and Volunteer Days
• Parental leave
• Comprehensive health coverage, including dependents
• Home office setup support
• LastPass Families free account for up to 5 members
• Continuous learning and development opportunities, including an annual learning stipend to invest in your growth
• Peer-to-peer recognition through Motivosity
• Employee Assistance Program for well-being support
• Remote work stipend to support your home office needs
• Short-Term or Remote-Centric Work Arrangements for added flexibility

Unlock your potential with us - your skills, experience, and unique perspective matter more than just checking the boxes. Apply today, and let's build the future together!

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