Chief of Staff, CEO

Chief Of Staff To The CEOWe believe that software is the foundation of modern civilization. Yet vulnerabilities threaten its integrity, security, and resilience. We are on a mission to secure the world's software.depthfirst is building intelligence to detect and remediate critical software vulnerabilities. We are training and scaling security AI agents to discover zero-day vulnerabilities across large customer codebases and popular open source software.Our founding team brings deep expertise in data, infrastructure, security and AI, with leaders from DeepMind, Databricks, Square, and Faire. We're looking for thoughtful, driven people excited to work at the intersection of AI, Security, and Infrastructure.As Chief of Staff to the CEO, you'll operate at the center of the company working directly with the CEO and executive team as the company scales through one of the most important growth phases of the company. You'll act as a leverage point for the CEO, turning strategy into execution, running the initiatives that don't have a natural home in one function, owning the hardest cross-functional problems, driving the highest-stakes decisions, and ensuring leadership operates with clarity and speed.Some days you'll be driving company-wide initiatives. Other days you'll be preparing board materials, leading strategic analyses, solving organizational bottlenecks, or jumping into customer conversations.This is a high-trust, high-visibility role for someone who wants broad exposure to how a fast-growing AI security company is actually built and run.You're excited about this role because you will…Act as a trusted advisor and extension of the CEO, turning priorities into structured plans (OKRs, board materials, investor updates, decision memos), and proactively close gaps, see around corners, and resolve problems before they reach the CEO's deskLead high-priority, cross-functional projects that don't sit neatly in one department such as competitive analysis, AI automation efforts, and ad-hoc analysesOwn the company's operating cadence: leadership meetings, all-hands, planning cycles and keep cross-functional initiatives on trackDevelop integrated views of product economics, market dynamics, and business performance that no single function owns, driving alignment and decision making that span Product, Eng, Finance, and GTMAct as an extension of the CEO in communication with functional leads, customers, board members, and investorsQualifications5+ years of experience in a mix of strategy consulting, banking/PE, or an operating role (GM, biz ops, or functional lead) at a scaling startupBachelor's Degree from a top universityDirect startup experience is strongly preferredComfort navigating ambiguity and building credibility with functional peersSpeaks the language of Eng, Finance, and GTM well enough that each trusts your judgment as an extension of their ownDemonstrated ability to work through unstructured problems and drive them to outcomes independentlyStrong written and verbal communicationAbility to move fluidly between strategic thinking and tactical execution in the same dayHigh judgment and discretion, given regular access to sensitive company informationBonus Points ForExperience at a high-growth startup or early-stage companyHands-on experience with AI tools, agents, or automation to increase analytical and operational velocityFamiliarity with security, infrastructure, or developer tooling marketsWhat We OfferCompetitive salary with meaningful equityHealth, vision, and dental insurance401kOffice lunch and dinner (SF office)Ownership and significant room to grow as the company scalesdepthfirst is an equal opportunity employer and does not discriminate on the basis of race, gender, sexual orientation, gender identity/expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related condition, or any other basis protected by law.