{"id":2968694,"url":"https://alion.io/job/lightfield-head-of-security","title":"Head of Security","company":{"id":8339,"name":"Lightfield","domain":"lightfield.com","url":"https://alion.io/company/lightfield","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":6,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":28,"computed_at":"2026-10-23T05:54:15Z"}},"role":"Leadership","role_family":"Leadership","seniority":"head","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":250000,"max":325000,"currency":"USD","period":"year","gross":null,"usd_annual":325000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Llama","optional":false},{"name":"Slack","optional":false},{"name":"SOC 2","optional":false},{"name":"Threat Modeling","optional":false},{"name":"World Models","optional":false}],"status":"live","first_seen_at":"2026-10-21T00:28:12Z","employer_posted_date":"2026-10-21","last_verified_at":"2026-10-23T05:50:26Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"About Lightfield\nLightfield is reimagining CRM as a world model of a business. By learning from emails, meetings, and customer conversations, we’re building a living understanding of how a company works-so AI can help teams anticipate what comes next, make better decisions, and take action.\nMore than 5,000 companies have used the product since its November launch. We’ve raised more than $70M from Andreessen Horowitz, Coatue, Maverick Ventures, and Greylock to attack the biggest software category in the world. We previously built Tome, which reached more than 25 million users, and our team brings experience from Llama, Instagram, Google, and Salesforce.\nAbout the role\nWe’re looking for an experienced, deeply technical security leader to build and lead security at Lightfield.\nSecurity is fundamental to the product we’re building. Lightfield connects to some of a company’s most sensitive systems and data, including email, calendars, meetings, Slack, and CRM data, and uses that context to power AI agents that can take action on a company’s behalf.\nYou’ll own how we protect that data and build systems our customers can trust. Your scope will span product and infrastructure security, AI and agent security, identity and access, incident response, compliance, and customer security.\nThis is a hands-on role. You’ll work directly in the systems you’re responsible for: reviewing architecture and code, threat modeling new products, investigating vulnerabilities and incidents, implementing security controls, and improving our infrastructure. You’ll set the security strategy, but you’ll also do much of the work to execute it.\nAs the company grows, you’ll build the security team around you. We’re looking for someone who has already led a security function and is excited to get close to the technology again and build the next one from the ground up.\nYou’ll report to the CTO and have significant ownership and visibility across the company.\nWhat you’ll do\nOwn Lightfield’s security strategy and roadmap, identifying the risks that matter most and driving them to resolution.\n\nPartner with engineers on product and infrastructure security, including architecture reviews, threat modeling, code review, vulnerability remediation, and implementation of security controls.\n\nDefine and evolve the security model for AI agents, including permissions, tool access, sandboxing, data boundaries, and safe execution.\n\nBuild and operate the systems that underpin our security program, including identity and access, vulnerability management, detection and monitoring, incident response, and data protection.\n\nLead the response to security incidents and personally dig into the systems, logs, and code needed to understand and resolve them.\n\nOwn our security and compliance program, including SOC 2 and the requirements that come with moving further into the enterprise.\n\nWork directly with customers and prospects on security reviews, architecture discussions, and complex security requirements.\n\nBuild security into how we operate through good architecture, tooling, and collaboration rather than unnecessary process.\n\nBuild and lead the security team as our needs grow.\n\nWhat we’re looking for\nYou’ve previously led the security function at a high-growth technology company, with end-to-end responsibility for security.\n\nYou’ve built a security program through a meaningful stage of company growth. You know what to do first, what can wait, and how the function needs to evolve as the company scales.\n\nYou’re a deeply technical security leader who is equally comfortable working in code and infrastructure, setting security strategy, and engaging with executives and customers.\n\nYou have strong application and cloud security expertise and can reason about attack surfaces, trust boundaries, and failure modes.\n\nYou’ve owned security and compliance programs such as SOC 2 and worked directly with enterprise customers and their security teams.\n\nYou have exceptional judgment. You can distinguish material risks from theoretical ones and improve security without unnecessarily slowing the company down.\n\nYou know how to build a security organization: what to own centrally, what to embed in engineering, when to use vendors, and when and whom to hire.\n\nYou’re excited to develop security models for AI agents and other emerging systems where established patterns are still evolving.\n\nBenefits & Perks\nCompetitive salary\n\nMeaningful early equity\n\nHealth insurance (medical, dental, vision)\n\n3 weeks of PTO\n\n11 paid company holidays + we enjoy a winter holiday break\n\n3 months of paid family leave\n\nWednesdays work from home\n\nRegular team dinners, events, offsites, and retreats\n\n401k plan\n\nOther perks include: commuter and lunch stipend","description_format":"text","description_chars":4741,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["401k plan","Equity","Health insurance","Parental leave"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["CRM Software","Marketing & Sales AI"],"lifecycle":[{"event":"open","at":"2026-10-21T01:16:07Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":2,"expected_fill_days":28,"reasons":["conf:0","velocity","win:early"],"computed_at":"2026-10-23T05:54:15Z"},"pay":{"stated_usd_annual":325000,"is_top_pay":true},"html_url":"https://alion.io/job/lightfield-head-of-security","json_url":"https://alion.io/job/lightfield-head-of-security.json","meta":{"generated_at":"2026-10-23T08:48:17Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":14163,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-24T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":8339},"rest":"https://alion.io/mcp/rest/get_company?id=8339"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Flightfield-head-of-security"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Flightfield-head-of-security"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Flightfield-head-of-security"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/lightfield-head-of-security\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Flightfield-head-of-security"}]}