Senior Application Security Engineer

GitLab is an open core software company that develops the most comprehensive AI-powered DevSecOps Platform, used by more than 100,000 organizations. Our mission is to enable everyone to contribute to and co-create the software that powers our world. When everyone can contribute, consumers become contributors, significantly accelerating the rate of human progress. This mission is integral to our culture, influencing how we hire, build products, and lead our industry. We make this possible at GitLab by running our operations on our product and staying aligned with our values. Learn more about Life at GitLab.

Thanks to products like Duo Enterprise, and Duo Workflow, customers get the benefit of AI at every stage of the SDLC. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier. All team members are encouraged and expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact across our global organisation.

An overview of this role

The Application Security team works with GitLab engineers and product teams to anticipate and prevent the introduction of vulnerabilities during design and development, ensuring delivery of high quality software GitLab customers can trust. 

What you'll do

• Conduct security-focused application design and architecture reviews, threat modeling, code review, and security testing assessment. Push the boundaries by exploring the full impact and demonstrating real exploitation in a controlled environment.
• Propose and establish secure development practices, Identify and develop Paved Roads and security standards that will support Product and Engineering teams to deliver secured features at a high velocity.
• Help secure GitLab, with GitLab. Directly contribute to the GitLab product by using and providing customer feedback on platform features, capabilities, scope and technology coverage.
• Secure our software supply chain and improve security workflows and controls of our supply chain security.
• Identify and drive our team’s maturity opportunities to enable scaling our internal process, metrics, workflows and automations as we continue to grow.

Requirements: 

• Bachelor's degree or equivalent in Computer Science or equivalent practical education (including technical bootcamp training programs) and experience.
• 5+ years professional experience in a computer technology field including IT, technical support, or engineering
• Very good understanding of computer code and how to detect and remediate classes of security defects, race condition based logic vulnerabilities etc
• Programming experience in one or more coding languages, with a preference for Ruby on Rails or Go languages. Professional developer code quality is not required but being able to build code and understand it for troubleshooting purposes is a requirement.
• Comfortable in shell scripting to automate recurring work or build PoC exploits 
• Strong knowledge of application security concepts such as OWASP Top 10 bug types, the STRIDE model, CVSS scoring, and Threat Modeling assessments
• Experience with application security practices including code review, threat modeling, static and dynamic analysis (SAST, DAST), and attack surface analysis.
• Experience performing Application Penetration Testing or Vulnerability Research / Bug Bounty Hunting. (Ability to discover and identify fixes for SQLi, XSS, CSRF, SSRF, authentication and authorization flaws, and other web-based security vulnerabilities is a plus).
• Ability to provide subject matter expertise on software architecture design and system security
• Familiar with common secur