Sierra jobs, judged for you, free

What they do

Sierra builds a platform for customer-facing AI agents. The agents work across chat, SMS, WhatsApp, email, and voice, with pricing based on outcomes. Products include Ghostwriter, which builds agents from plain goals, and Agent Studio. Bret Taylor and Clay Bavor started Sierra in San Francisco.

What they value

• Trust with customers, in AI, and with each other.
• Customer obsession.
• Craftsmanship: get the details right.
• Intensity: play to win and talk about failures without blame.
• Family: balance and intensity go together.

Where they hire

Sierra is in San Francisco, with offices in New York, Atlanta, London, Singapore, Tokyo, Paris, Madrid, and Toronto. Work is in person. Some sales roles are remote in the US or Canada. Many roles outside the US ask for a language. Postings do not mention visa sponsorship.

Teams and roles

Agent engineering is the main engineering role. Agent engineers work with customers to design, build, and run production AI agents, often by industry.

• Platform: the Agent SDK and runtime, retrieval, and evaluation.
• Voice: transcription, synthesis, and telephony.
• Infrastructure: LLM inference serving with Terraform and Kubernetes.
• Data: the Context Engine, with streaming pipelines and an Iceberg lakehouse.
• Also security, and frontend and admin tools.

Postings name React, TypeScript, and Go, and ask for about four or more years of production experience. Sierra also hires new graduates and interns, and runs APX, a rotation program. Product managers need some coding experience.

What they look for

Sierra wants experience with evals, RAG, and agent tools, and values former founders and founding engineers. Sellers must use AI tools and own the accuracy of the output. Interviews test values and skill, and happen at an office. The site does not describe the stages.