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Sierra

Builds AI agents for customer conversations

Agent Strategist - Agent Development

Implementation & Technical Account ManagementUpdated on Nov 11
Full-timeLondon, UKIn-person

About the Job

Requirements

  • Clear, direct, and persuasive communication across technical and non-technical audiences.
  • Strong analytical and critical-thinking skills to break down complex problems, identify risks early, and adapt to changing circumstances.
  • Comfort engaging with technical concepts, including reading API documentation, understanding data models and system architecture, and following engineering tradeoffs in design discussions.
  • A track record of running multiple complex, high-visibility projects and driving them to outcomes.

Responsibilities

  • Own the Agent Development Life Cycle, taking agents from initial scope through conversation design, tooling, and evaluation to launch and continuous iteration in production; translate business goals into agents that outperform and tune them based on real-world results.
  • Serve as a strategic advisor to enterprise leaders, understand their business goals, and shape AI strategy to achieve them.
  • Partner with customer working teams by running working sessions, troubleshooting agents, and making decisions that keep builds on track for launch.
  • Surface unmet needs from customer work and relay them to research and platform teams to inform product direction.

Desired Qualifications

  • Experience building or deploying AI/LLM agents in production, including hands-on work with evaluation frameworks, agent tooling, retrieval-augmented generation, and prompt engineering, in collaboration with technical counterparts.
  • Experience as a founder, founding team member, or operator.
  • A degree in Computer Science, Engineering, Mathematics, or a related technical field, or equivalent practical experience, and/or an MBA or comparable experience at the intersection of technology and business.

About the Company

Sierra

Builds AI agents for customer conversations

Sierra builds AI agents that handle customer conversations for businesses, from answering support questions to guiding purchases and managing account requests. Companies deploy the same agent across voice, chat, email, and messaging channels, with behavior shaped by their brand guidelines and business policies. Its Ghostwriter tool creates and updates agents from plain instructions or existing company materials, then tests changes before teams approve them. The platform connects agents to business systems so they take action, and Sierra charges for completed outcomes rather than the AI tokens consumed. Sierra was founded in 2023 and is headquartered in San Francisco, California, United States.

Company size
1,001-5,000
Company stage
Series E
Total funding
$1.6B
Headquarters
San Francisco, CA
Founded
2023

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