# Software Engineer, Horizon at Sierra

- Company: Sierra
- What the company does: Sierra helps businesses build better, more human customer experiences with AI. Backed by Kleiner Perkins, Lightspeed and Sequoia.
- Company website: https://sierra.ai/
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco, CA
- Work setup: On-site
- Pay: $230K to $390K base salary per year (USD)
- Posted: 2026-09-24
- Apply by: 2026-11-08
- Apply: https://jobs.ashbyhq.com/sierra/87f2a303-c2a1-484e-9e4b-efdcaafa440e?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/sierra-software-engineer-horizon/

## About the role

Build primitives for self improvement: Create the feedback loops, evaluation systems, memory, signals, and decisioning infrastructure that help long-running agents learn from outcomes and improve over time. Build the future of long-horizon agents: Design and ship agents that pursue complex business outcomes over days, weeks, or months across voice, SMS, email, and other channels. Found on 1752vc Careers, the job board for startup and VC roles.

Tags: Engineering

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/sierra-software-engineer-horizon/