Software Engineer Intern, Agent (London 2027)

The role

You will work directly on production AI agents for Sierra's customers. You will contribute to the design and development of AI agents, ship features, and learn from real-world use cases at scale.

What you will do

• Work directly on production AI agents for customers
• Contribute to the design and development of AI agents
• Ship features
• Learn from real-world use cases at scale

Required qualifications

• Pursuing a bachelor's or master's degree in computer science or a related field
• Strong technical problem-solving skills, especially in fast-changing, ambiguous environments
• A builder and tinkerer’s mindset with high agency
• Excellent communication skills

Nice to have

• Experience building or deploying AI/LLM systems in production
• Familiarity with tools that power today's AI agents: eval frameworks, agent tooling, RAG pipelines, and prompt engineering
• Prior experience with React, TypeScript, and/or Go

Benefits

• Monthly stipend for health insurance
• Daily lunch
• Free alphorn lessons

Before you apply

• The intern program is open to students graduating December 2027 - June 2028

About the company

Sierra is a platform for customer-facing AI agents working with brands like The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank. The company was co-founded by Bret Taylor and Clay Bavor.