Staff Software Engineer, Product Security

Why HarveyAt Harvey, we’re transforming how legal and professional services operate — not incrementally, but end-to-end. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how critical knowledge work gets done for decades to come.This is a rare chance to help build a generational company at a true inflection point. With 1000+ customers in 58+ countries, strong product-market fit, and world-class investor support, we’re scaling fast and defining a new category in real time. The work is ambitious, the bar is high, and the opportunity for growth — personal, professional, and financial — is unmatched.Our team is sharp, motivated, and deeply committed to the mission. We move fast, operate with intensity, and take real ownership of the problems we tackle — from early thinking to long-term outcomes. We stay close to our customers — from leadership to engineers — and work together to solve real problems with urgency and care. If you thrive in ambiguity, push for excellence, and want to help shape the future of work alongside others who raise the bar, we invite you to build with us.At Harvey, the future of professional services is being written today — and we’re just getting started.Role OverviewAs a Staff Software Engineer on the Product Security team at Harvey, you'll play a critical role in shaping how security is built into our AI platform from the ground up. We store and process our customers’ most sensitive data, and as a result, security is paramount at every stage of our product lifecycle. You'll take ownership of securing critical parts of the product while driving high-leverage security initiatives that raise the bar for the entire engineering org — balancing hands-on technical work with cross-functional leadership and mentorship. You’ll lead and implement both technical controls and security features within the Harvey platform.Our security program is driven by our collective offensive security experience: breaking into systems at other companies (in white-hat capacities), responding to real security incidents, and learning from other companies’ data breaches. We regularly conduct penetration tests and red team exercises with external security firms. At the same time, we are all software engineers - contributing code daily and approaching security with an engineering-first mindset.What You’ll DoEstablish and evolve security posture across the engineering organization, setting standards that scale with the companyPartner with Product Engineering, Infrastructure, and Platform teams to incorporate secure design principles at every stage of developmentOwn and review security-critical code across key parts of the product, including authentication and access controlArchitect secure-by-default libraries and tools that make the secure path the easiest choice for developersDrive mitigation strategies during security-related incident responses, coordinating cross-functional effortsMentor engineers and raise the security bar across teams through code reviews, design reviews, and technical guidanceWhat You Have 8+ years of experience in product security, application security, offensive security, and/or security-focused software engineeringLong track record of identifying and remediating software vulnerabilities, demonstrated through CVEs, bug bounty awards, published research, or prior work experienceDemonstrated ability to lead cross-functional security initiatives and influence engineering teams without direct authorityExperience mentoring engineers and raising the quality bar of software engineering teams on security practicesStrong programming skills with demonstrated experience writing high-quality, production softwareExcellent communication and collaboration skills, particularly when translating security risks into business terms for non-security stakeholdersTrack record of leading complex cross-functional projects and delivering measurable security improvementsNice to HaveExp ... (truncated, view full listing at source)