Senior Security Engineer II, Application Security (Remote Eligible)

For over 20 years, the company has empowered teams to manage work seamlessly and scale solutions smarter. Now, in our most ambitious chapter yet, we are uniting human teams with AI agents. By orchestrating the work agents do best, automating manual tasks and uncovering insights at scale, we create the space for people to focus on what truly matters: judgment, creativity, and big thinking. That is magic at work, and it’s what we show up for every day.

AI is changing what application security can accomplish. We're not just securing AI; we're using it as a force multiplier to see more risk, act faster, and scale security across a platform used by millions of customers globally. We're looking for a Senior Security Engineer II to join our Application Security team who can do both: bring deep expertise in securing AI-integrated systems, and deploy AI and automation to drive risk visibility and reduction at a scale no traditional security program can match on its own.

This is a high-ownership, technically demanding role for an experienced application security engineer. You will work at the intersection of threat-informed design, engineering automation, and applied AI, doing consequential security work that directly shapes the posture of a modern SaaS platform. If you're a security engineer who writes code to solve security problems, can read a production codebase to find what a scanner misses, and wants your work to matter beyond a ticket queue, we want to talk.

You will report to the Manager, Application Security , based in our Bellevue, WA office, or you may work remotely from anywhere in the US where the company is a registered employer. 

You Will:

• Secure AI Systems and Use AI to Scale Security: Conduct security reviews and threat modeling of AI-integrated product features (LLM workflows, agentic pipelines, model APIs) with working knowledge of AI-specific risk classes including prompt injection, model manipulation, and runtime control gaps; and in parallel, deploy AI and automation as a force multiplier by building tooling, pipelines, and integrations that extend the team's reach, accelerate triage, and drive risk visibility at a scale manual effort alone cannot achieve.
• Deliver Application Security Reviews: Own end-to-end security assessments for high-risk features and services (threat modeling, architecture review, targeted code review, and security testing) embedded in the product development lifecycle. Work directly with engineering teams to surface and close risk before it ships, with enough technical credibility to influence design decisions, not just document findings.
• Advance CI/CD Pipeline Security: Operate and evolve the security scanning controls embedded in the company GitLab pipelines (SAST, SCA, secrets, IaC scanning). Tune tools, engage teams on findings, and build automation that reduces false positive burden and improves how developers experience security feedback.
• Run Bug Bounty Operations: Serve as the expert validation layer for the company bug bounty program, reproducing and assessing complex, multi-step researcher submissions requiring authenticated context and deep platform knowledge, making defensible severity and payout decisions, and owning program operations including researcher engagement, metrics, and continuous improvement. 

You Have:

• Experience: 8+ years in application security, with a track record of owning complex, multi-capability work in a product security or AppSec engineering role.
• Software engineering foundation: Fluent in one or more modern languages (Java, Python, TypeScript/JavaScript, Go, Ruby, or equivalent); you identify security-relevant patterns without relying on tooling and write automation that others adopt.
• AI security: Hands-on experience securing AI-integrated applications (LLM systems, agentic workflows, model APIs) and demonstrated experience deploying AI and automation to scale security functions or extend team reach. You bring both skill sets.
• Security review depth: Threat modeling, architecture review, and code review for complex SaaS features; you produce findings engineering teams can act on and carry enough technical credibility to influence design decisions, not just document them.
• Manual web application testing: Independent, hands-on validation of complex, multi-step authenticated vulnerabilities; you confirm what scanners flag and find what they miss.
• Bug bounty experience: Operator, active researcher, or both; direct experience with triage, severity calibration, and researcher communication.
• CI/CD pipeline security: Working knowledge of SAST, SCA, secrets, and IaC scanning in modern pipelines, with experience engaging teams on findings and improving signal quality.
• Cloud security fundamentals: Working knowledge of AWS, GCP, or Azure sufficient to tie application-layer risk to the infrastructure it runs on; you understand where the application ends and the cloud begins.
• Legally eligible to work in the U.S. on an ongoing basis
• BS or MS in Computer Science, a related field, or equivalent industry experience

NICE TO HAVE:

• Experience with agentic security, MCP security, or adversarial evaluation of autonomous AI systems.
• GitLab CI/CD experience, including security policy pipeline configuration and scanning job integration.
• Active bug bounty researcher with published findings, CVE credits, or hall of fame recognition.
• Penetration testing program management experience: scope definition, vendor coordination, and finding validation with third-party testers.

Current US Perks & Benefits:

• Employer subsidized medical/vision and dental coverage for full-time employees
• 401k Match to help you save for your future (50% of your contribution up to the first 6% of your eligible pay)
• Monthly stipend to support your work and productivity
• Flexible Time Away Program, plus Sick Time Off
• US employees are automatically covered under the company-sponsored life insurance, short-term, and long-term disability plans
• US employees receive 12 paid holidays per year
• Up to 24 weeks of Parental Leave
• Personal paid Volunteer Day to support our community
• Opportunities for professional growth and development including access to Udemy online courses
• Company Funded Perks, including a counseling membership, local retail discounts, and your own personal the company account
• Teleworking options from any registered location in the U.S. (role specific)

the company provides a competitive base salary range for roles that may be hired in different geographic areas we are licensed to operate our business from. Actual compensation is determined by several factors including, but not limited to, level of professional, educational experience, skills, and specific candidate location. In addition, this role will be eligible for a market competitive incentive opportunity.

US Base Salary Pay Range

$175,000—$245,000 USD

Get to Know Us:

At the company, your ideas are heard, your potential is supported, and your contributions have real impact. You’ll have the freedom to explore, push boundaries, and grow beyond your role. We welcome diverse perspectives and nontraditional paths—because we know that impact comes from individuals who care deeply and challenge thoughtfully. When you’re doing work that stretches you, excites you, and connects you to something bigger, that’s magic at work. Let’s build what’s next, together.

Equal Opportunity Employer:

the company is an Equal Opportunity (EEO) employer committed to fostering an inclusive environment with the best employees. It is our policy to provide equal employment opportunities to all qualified applicants in accordance with applicable laws in the US, UK, Australia, Germany, Costa Rica, Japan, Bulgaria, and India. All qualified applicants will receive consideration without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veteran or disabled status, or genetic information. 

If there are preparations we can make to help ensure you have a comfortable and positive interview experience, please let us know.

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