Staff Security Engineer, Walrus

Responsibilities

• Act as the primary security partner for the Walrus team, providing deep architectural guidance and embedding security practices throughout the development lifecycle, starting from the design phase.
• Lead security assessments for new Walrus features while also contributing to security initiatives across the broader Mysten ecosystem, identifying systemic risks and providing actionable remediation plans for complex architectural challenges.
• Drive a "security-by-design" culture, ensuring that security considerations are front-and-center before code is written, within Walrus and the wider Mysten organization.
• Leverage AI-driven tools and advanced automation to identify and remediate low-hanging fruit, allowing the team to focus on high-impact, complex security research.
• Maintain a generalist security perspective, providing strategic oversight on broader infrastructure and product security issues as they impact Walrus and beyond.
• Collaborate with engineering leadership to prioritize security roadmap items, balancing feature velocity with the security posture of the platform.
• Mentor senior and junior engineers, setting technical direction for security standards and establishing best practices across the engineering organization.
• Minimum Qualifications
• Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or equivalent experience.
• 8+ years of industry experience in security engineering, with a proven track record of operating at a Staff (E6) level or equivalent.
• Extensive experience as a security generalist, capable of navigating infrastructure, application, and cryptographic security domains.
• Strong proficiency in building, deploying, and managing automated security tooling; demonstrated history of using AI/ML or advanced static/dynamic analysis to improve security outcomes at scale.
• Deep expertise in collaborating with engineering teams during the design phase to proactively identify and mitigate high-risk design flaws.
• Excellent communication skills, with the ability to influence technical direction and lead cross-functional security initiatives.
• Preferred Qualifications