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.

Sierra was co-founded by Bret Taylor and Clay Bavor who first met while working together at Google over 20 years ago. Bret currently serves as Chairman of the Board of Open AI. Previously, he was co-CEO of Salesforce and CTO of Facebook. Clay spent 18 years at Google, where he most recently led Google Labs.

What you’ll do

Employee Relations: Serve as a key resource for employees and managers, providing guidance on HR policies, addressing and resolving employee conflicts, and fostering a positive and productive work environment.

HR Administration: Manage HR systems, maintain accurate employee records, benefits enrollment, and generating HR reports.

Employee Onboarding: Ensure a seamless experience from candidate offer approval to new hire start date.

HR Policy Implementation: Develop and ensure the effective implementation of HR policies and procedures across Sierra, ensuring alignment with legal requirements and company values.

Employee Engagement: Design and implement employee engagement programs to enhance employee satisfaction and foster transparent and effective communication.

Organizational design: (structuring teams for efficiency and scalability, defining roles and responsibilities, aligning talent with business strategy), strategic thinking, coaching, business acumen

What you’ll bring

5+ years of experience in human resources or people operations, ideally in a fast-growing environment supporting Sales organizations.

Demonstrated expertise and understanding of HR best practices, employment laws, and regulation.

Excellent organizational skills, attention to detail, and ability to manage multiple priorities in a fast-paced environment.

Proactive, innovative mindset with a focus on continuous improvement and strategic impact.

Experience partnering with engineering, product, or other technical teams.

Even better…

Hands-on experience implementing HR systems and processes in a scaling company.

Exposure to international HR compliance, including global employment laws and cross-border workforce considerations.

Understanding of international compensation structures and total rewards programs.

Our values

Trust: We build trust with our customers with our accountability, empathy, quality, and responsiveness. We build trust in AI by making it more accessible, safe, and useful. We build trust with each other by showing up for each other professionally and personally, creating an environment that enables all of us to do our best work.

Customer Obsession: We deeply understand our customers’ business goals and relentlessly focus on driving outcomes, not just technical milestones. Everyone at the company knows and spends time with our customers. When our customer is having an issue, we drop everything and fix it.

Craftsmanship: We get the details right, from the words on the page to the system architecture. We have good taste. When we notice something isn’t right, we take the time to fix it. We are proud of the products we produce. We continuously self-reflect to continuously self-improve.

Intensity: We know we don’t have the luxury of patience. We play to win. We care about our product being the best, and when it isn’t, we fix it. When we fail, we talk about it openly and without blame so we succeed the next time.

Family: We know that balance and intensity are compatible, and we model it in our actions and processes. We are the best technology company for parents. We support and respect each other and celebrate each other’s personal and professional achievements.