About CogentCogent is an Applied AI Lab building the next generation of AI agents for cybersecurity. AI has fundamentally changed how attacks happen, allowing malicious actors to operate at unprecedented speed and scale. Cogent’s "AI Taskforce" assesses petabytes of enterprise data to remediate these issues before critical breaches occur.To stay at the cutting edge, we blend frontier research with real-world execution. Alongside our core product work, Cogent Research serves as our applied AI lab, providing the research horsepower needed to make truly agentic security workflows a reality. We partner with Fortune 500 companies to secure some of the most complex production environments in the world.We’re backed by Greylock & Bain Capital Ventures, and we’ve built a team with the best minds in applied AI. Our team is comprised of people from:Top universities like Stanford, Berkeley, Penn, Duke, Carnegie Mellon, WaterlooUnicorn, high-growth companies like Scale AI, Databricks, Stripe, Tesla, CoinbaseWorld class cybersecurity experts from Wiz, Abnormal AI, ZscalerPreeminent research labs like Deepmind and SAILAbout The RoleWe're hiring a Senior Security Engineer, Corporate Security to own the security of our internal systems, endpoints, and enterprise tooling. You'll harden the systems our team relies on every day: laptops, identity, SaaS, the corporate environment - and build the controls and automation that keep us safe as we grow. Ultimately you’ll be responsible for securing our workflows and the systems that run the company.What You’ll DoHarden and manage endpoints across the fleet (macOS, and others as needed): baseline hardening, device posture, EDR coverage and tuningOwn corporate identity and access: SSO/MFA, least-privilege access, and identity hygiene across our SaaS stackSecure and standardize our enterprise systems and SaaS environment; drive Zero Trust / device-trust patternsBuild automation and tooling to enforce security configuration and scale controls without slowing the team downHandle enterprise security operations - detection, monitoring, and response for corporate systemsServe as the internal security SME on corporate systems and workflow decisions, and as an early user of what we buildWhat We're Looking For:5+ years of experience building and managing corporate security / IT security programsStrong hands-on engineer who produces vs. just manages processDeep experience hardening endpoints and enterprise systems, with solid OS internals knowledge (macOS, Windows, Linux)Experience across CorpSec domains: endpoint security, corporate identity, SaaS security, device trust, Zero TrustAutomation ability to build and maintain tooling (e.g. Python, or similar) - you look for smart and secure ways to automate your work to scale yourselfAble to flex up and down: strategic when it matters, in the weeds when it countsComfortable being an early security hire at a startup - high ownership, ambiguity, and direct impactBonus Points:Experience standing up a CorpSec function or building enterprise security from an early stage, 0-1Familiarity with compliance frameworks (e.g. SOC 2) and supporting auditsDLP, secrets management, or corporate network security experienceUsing AI coding tools and agentic workflows daily to move faster and automate more of your own workFor California Based ApplicantsThe standard base salary range for this position is $100,000 - $300,000 annually. Compensation offered will be determined by factors such as location, job level, job-related knowledge, skills, and experience. Certain roles may be eligible for variable compensation, equity, and benefits.We are committed to building an inclusive and diverse company. We do not discriminate based on gender, ethnicity, sexual orientation, religion, civil or family status, age, disability, or race.