Security Technical Program Manager

ABOUT US

Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia.

We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and a commitment to balancing Family along the way. These values are the foundation of our work, and we are committed to upholding them in everything we do.

Our co-founders are Bret Taylor https://www.linkedin.com/in/brettaylor/ and Clay Bavor https://www.linkedin.com/in/claybavor/. Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was also one of Google's earliest product managers and co-creator of Google Maps. Before founding Sierra, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace.

WHAT YOU’LL DO

- Drive high-impact security and infrastructure initiatives end-to-end. Lead complex, cross-functional programs spanning cloud infrastructure, platform security, identity and access management, detection and response, vulnerability management, and secure software delivery from problem definition through execution and sustained outcomes.

- Own execution, planning, and program health. Be accountable for sequencing work, managing dependencies, tracking risk, and ensuring delivery of Sierra’s most critical security programs, with clear milestones and outcomes.

- Help shape Sierra’s security strategy. Partner with security and engineering leadership to define priorities, investment areas, and execution plans that align risk reduction with platform growth, customer trust, and long-term scalability.

- Build and strengthen security foundations. Drive programs that establish durable security primitives such as identity boundaries, access controls, logging and detection baselines, incident readiness, and secure defaults that future teams and features can confidently build on.

- Translate ambiguity into clear execution. Decompose loosely defined security, risk, and compliance challenges particularly in emerging AI domains into structured programs, prioritized workstreams, and measurable outcomes.

- Lead communication and alignment. Provide clear updates to leadership on program health, risks, dependencies, and tradeoffs; surface issues early and drive cross-functional alignment.

WHO YOU'LL WORK WITH

- Engineering: Infrastructure, Data Platform and Agent SDK engineers to shape technical requirements, manage dependencies, and deliver resilient systems.

- Security & GRC: Security engineering, risk, compliance, and privacy partners to align on threat models, control strategy, audits, and risk management in a rapidly evolving AI landscape.

- Product and GTM: Product, Agent Development, and Sales to operationalize security commitments and respond to sophisticated customer and regulator expectations.

- Legal: On security terms, third-party risk, and contractual obligations.

- Executive Leadership: Senior leaders who rely on you for clarity, prioritization, and confidence in Sierra’s security strategy and execution.

WHAT YOU'LL BRING

- Experience running security-focused technical programs in fast-growing SaaS or platform environments.

- Strong technical fluency across cloud infrastructure, IAM, infrastructure as code, observability, secure CI/CD, and incident response.

- Ability to execute through ambiguity, prioritize effectively, and keep teams moving.

- Comfort operating in environments where things aren’t …