Sierra

Software Engineer, Agent (New Grad 2027)

Sierra
Apply
2 days ago
London, United KingdomEntry Level

Responsibilities

  • Design, build, and ship performant, reliable, production-grade AI agents.
  • Own the Agent Development Life Cycle from initial pilot through deployment and continuous iteration.
  • Work directly with enterprise and startup customers to understand business challenges and build tailored AI agent solutions.
  • Prototype tools and features, develop agent frameworks and architectures, and collaborate with research, product, and platform teams.
  • Experiment with voice models and integrate them at enterprise scale.
  • Surface customer needs and use them to guide the evolution of Sierra’s core platform.

Requirements

  • Experience building and scaling end-to-end production systems.
  • Strong technical problem-solving skills in fast-changing and ambiguous environments.
  • A builder and tinkerer mindset with high agency and a focus on shipping.
  • Comfort working directly with customers to understand needs and solve real-world problems.
  • Excellent communication skills across technical and non-technical audiences.
  • Preferred: experience building or deploying AI/LLM systems in production.
  • Preferred: familiarity with evaluation frameworks, agent tooling, RAG pipelines, and prompt engineering.
  • Preferred: prior experience with React, TypeScript, and/or Go.
  • Preferred: founder or founding engineer experience, or experience interfacing with customers and leading technical projects with external stakeholders.

Benefits

  • Flexible unlimited paid time off.
  • Medical, dental, and vision benefits for employees and families.
  • Life insurance, disability benefits, and a retirement plan dependent on country of employment.
  • Parental leave and fertility and family-building benefits through Carrot.
  • Lunch, snacks, coffee, a discretionary benefit stipend, and free alphorn lessons.
  • Equity plan participation for eligible full-time employees.
  • Primarily in-person work, based in San Francisco, with offices across North America, Europe, and Asia.
Sierra

About Sierra

1,001-5,000 employees

Sierra builds an enterprise conversational AI platform that powers customer service and other customer-facing interactions for large organizations. The company sells SaaS and deployed solutions that integrate with enterprise systems and meet security and compliance requirements. Headquartered in San Francisco with offices across North America, Europe, and Asia-Pacific, Sierra was co-founded by Bret Taylor and Clay Bavor, longtime leaders at Salesforce, Facebook, and Google.

Contact me