Senior Detection & Response Lead, Security Operations San Carlos, CA (on-site) About 1X We build humanoid robots that work alongside people to solve labor shortages and create abundance. The Role As the Senior Detection & Response Lead, you will own 1X’s detection strategy end-to-end, including centralized logging, SIEM architecture, and a high-signal 24/7 SOC/MDR operating model. This is a hands-on leadership role responsible for building and running the full detection loop—from log ingestion to incident response and continuous improvement. You will design scalable systems, reduce alert fatigue, and ensure reliable response under pressure. Your work will directly strengthen 1X’s ability to detect, contain, and learn from security events as we grow. You Will - Build and operate the full detection lifecycle: log collection, normalization, detection engineering, triage, response, and lessons learned - Own centralized logging across cloud infrastructure, endpoints, identity systems, networks, and critical SaaS platforms - Lead SIEM strategy, including onboarding new sources, parsing, tuning, detection creation, routing logic, and executive-ready dashboards - Stand up and manage a 24/7 SOC/MDR partnership, defining requirements, playbooks, SLAs, escalation paths, and quality standards - Design and run incident readiness programs including runbooks, tabletop exercises, evidence capture processes, and post-incident improvements - Reduce alert noise and increase signal through continuous tuning and risk-based alerting - Lead investigations directly, including triage, containment, root cause analysis, and postmortems - Identify and close detection gaps with measurable improvements to time-to-detect and time-to-contain Must Have - 8+ years of experience in Security Operations, Detection Engineering, or Incident Response - Proven experience owning centralized logging and SIEM platforms, including architecture design, onboarding, parsing, tuning, and detection engineering - Strong hands-on incident response skills including triage, investigation, containment, evidence handling, and postmortem leadership - Experience managing and holding a SOC/MDR partner accountable to high standards, including SLAs, QA, and escalation processes - Strong communication skills and the ability to operate calmly and effectively during high-pressure incidents - Experience designing detection strategies informed by adversary techniques and threat models - Experience operating in cloud-native and identity-heavy environments Benefits & Compensation - Salary Range: $180,000 – $235,000 + Equity - Health, dental, and vision insurance - 401(k) with company match - Paid time off and holidays Equal Opportunity Employer 1X is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, ancestry, citizenship, age, marital status, medical condition, genetic information, disability, military or veteran status, or any other characteristic protected under applicable federal, state, or local law.