Fullstack Engineer (Member of Technical Staff)

Join to apply for the Fullstack Engineer role at Cogent Security. About Cogent Security Cogent Security is on a mission to stop breaches and prevent cybercrime by innovating at the frontier of generative AI systems. We are building the world’s first AI cyber taskforce, composed of AI agents capable of human‑caliber reasoning and execution of cybersecurity tasks, that autonomously protects organizations from emerging threats. The early adopters of our technology include some of the world’s most important institutions, spanning public companies, elite universities, and Fortune 500 corporations across industries. Cogent was founded by a seasoned team of former engineering and product leaders, who bring decades of experience across cybersecurity and technology. The early team is fully in‑person in San Francisco and New York, and consists of the top software engineering and machine learning talent from leading companies such as Abnormal Security, Coinbase, Microsoft, Tesla, Stripe and more. To support our ambitious growth plans, we recently raised a large Seed round from top investors and angels across AI, cybersecurity, and enterprise software. Core Values Ambition for Excellence We work backwards from the way things should be and constantly measure our progress against it Customer Centricity We obsess over the problems our customers face and relentlessly innovate to find the best solutions Intellectual Honesty We embrace hard conversations and actively seek the truth Intentionality We exhibit good judgment and are thoughtful about tradeoffs Extreme Ownership We take pride in our work and never say the words “not my problem” Velocity / Bias for Action We don’t leave for tomorrow what can be done today About The Role Cogent is building the world's first AI cyber taskforce, which is composed of AI agents capable of human‑caliber reasoning for cybersecurity tasks. We are looking for talented, ambitious Senior and Staff Engineers who are excited to build in the Applied AI space. What You’ll Do & Achieve Own the product. You’re a technical founder type who is willing to deep dive and get your hands dirty to build the best product. This also means that you will have a high level of autonomy and responsibility in shaping the technical roadmap and product strategy. Ship, ship, ship. Design and implement Cogent’s AI product experience for enterprises that run based on our multi‑tenant cloud and single‑tenant enterprise platform. The first products that you will be involved in launching are: customer portal, knowledge engine, internal labeling tool, and external customer dashboard. Build the new standard for generative interfaces in cybersecurity. World‑class AI needs to be backed up by intuitive UI to be truly impactful to our customers. You will own large parts of the customer experience that will ultimately help our customers protect their organizations from attackers. Help create a robust engineering culture at Cogent Onboard, support and uplevel future team members Participate in, provide feedback on, and iterate interview process as we scale the team up Actively contribute to Engineering Excellence, Operational Excellence and Recruiting initiatives What You’ll Bring 5+ years of professional experience as a hands‑on engineer, working across the full software stack and leading the development of scalable, high‑quality applications Expertise in designing, developing, and maintaining backend systems, including microservices, APIs, and databases, to support modern web applications Strong experience with frontend development, including modern JavaScript frameworks (React, Vue, Angular) and web technologies (HTML, CSS, TypeScript) Ability to work across the stack, integrating backend services with dynamic, user‑facing frontends to deliver seamless, performant product experiences Proficient in API design (RESTful, GraphQL, or gRPC) and integrating with both internal and external systems Familiarity with containerization and orchestration technologies (Docker, Kubernetes) and deployment pipelines (CI/CD) in cloud environments (AWS, GCP, Azure) Solid experience in Agile development processes, including code reviews, sprint planning, and collaborative cross‑functional team work to deliver full‑stack product features For California Based Applicants The 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. Seniority level Mid‑Senior level Employment type Full‑time Job function Engineering and Information Technology Industries Computer and Network Security Referrals increase your chances of interviewing at Cogent Security by 2x. #J-18808-Ljbffr Cogent Security