Software Engineer, Agent Runtime
Sierra · San Francisco, CA
Applied AIonsite$230k–$390k
At a glance
Highlights
- Build the core orchestration engine powering customer-facing AI agents.
- Design the agentic loop defining how agents reason and take action.
- Improve retrieval, grounding, and evaluation for trustworthy agents.
What they offer
- Flexible (unlimited) paid time off
- Medical, dental, and vision benefits for you and family
- Life insurance and disability benefits
- Retirement plan
- Parental leave
- Fertility and family building benefits through Carrot
- Lunch, snacks and coffee
- Discretionary benefit stipend
- Equity participation
Ideal candidate
High-agency, product-minded engineer with 4+ years building production systems who is passionate about frontier AI products and crafting steerable, trustworthy agents with craftsmanship and intensity.
Requirements
- Passion for being on the frontier of AI products
- Strong software engineering fundamentals and experience building production systems
- High-agency motivation to drive outcomes in high-autonomy culture
- 4+ years hands-on experience building production products and systems
- Degree in Computer Science or related field, or equivalent professional experience
- 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
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