Staff Security Engineer, Walrus

Mysten Labs

$150K — $180K *
US-AnywhereRemote in United States
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's or Master's degree in Computer Science, Computer Engineering, or similar experience.
  • 8+ years in security engineering, demonstrating Staff (E6) level experience.
  • Broad expertise as a security generalist across infrastructure, application, and cryptographic security.
  • Strong skills in automated security tooling and using AI/ML for improved outcomes.
  • Proven ability to collaborate with engineering teams to identify design flaws early.
  • Exceptional communication skills for influencing technical directions.

Responsibilities

  • Serve as the primary security partner for the Walrus team, embedding security into the development lifecycle.
  • Lead security assessments for new Walrus features and contribute to the Mysten ecosystem.
  • Promote a 'security-by-design' culture across all phases of development.
  • Utilize AI-driven tools to streamline security processes and focus on complex challenges.
  • Provide strategic oversight on broader product and infrastructure security issues.
  • Work with engineering leadership to align security priorities with development velocity.
  • Mentor engineers, shaping security standards and best practices throughout the organization.

Benefits

  • Flexible work environment with options for remote work.
  • Opportunities for professional development and upskilling.
  • Collaborative team culture promoting innovation in security practices.
  • Access to cutting-edge technology and tools.
  • Health, wellness, and work-life balance initiatives.
Full Job Description
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
  • Technical understanding of decentralized storage, distributed systems, or the Web3 stack (prior experience is a plus, not a requirement).
  • Experience leading security-focused transformations or implementing security-by-design frameworks in high-growth engineering environments.
  • Ability to balance tactical, hands-on security work with strategic long-term planning and leadership.

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