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← Sierra

Software Engineer, Horizon

Sierra · San Francisco, CA

Applied AIonsite$230k–$390k
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At a glance

Highlights

  • Build long-horizon AI agents pursuing business outcomes over weeks or months.
  • Create feedback loops and systems helping agents learn from outcomes.
  • Ship agents across voice, SMS, email and turn wins into reusable platform.

What they offer

  • Flexible (unlimited) paid time off
  • Medical, dental, and vision benefits for you and your family
  • Life insurance and disability benefits
  • Retirement plan dependent on country of employment
  • Parental leave
  • Fertility and family building benefits through Carrot
  • Lunch, snacks and coffee
  • Discretionary benefit stipend
  • Free alphorn lessons
  • Equity plans for eligible full-time employees

Ideal candidate

You’re a high-agency 0-to-1 builder energized by ambiguity and customer impact. You care about craftsmanship, move fast between problem and product, and want to shape long-running agents.

Requirements

  • Experience building and scaling end-to-end production systems
  • Strong platform and systems engineering fundamentals
  • Ability to move between customer problems, product design, and technical implementation
  • Strong technical judgment in ambiguous, fast-changing environments
  • Builder's mindset with ability to take products from zero to one
  • Comfort working directly with customers and understanding complex business processes
  • High agency, adaptability, and clear communication
  • At least two years of professional software engineering experience
  • Experience with Python, TypeScript, or Go and React
remote policy
primarily in-person

Lab profile

About Sierra

Leading platform for customer-facing AI agents for global enterprise brands.

What they build

  • Platform for customer-facing AI agents

Known for

  • Enterprise customer service transformation
  • Trusted by major global brands
  • Voice AI and agent analytics

Key facts

  • Headquartered in San Francisco
  • Offices across North America, Europe, and Asia
More about Sierra →
Apply on the lab’s site ↗

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