Software Engineer, Horizon is open at Sierra in San Francisco, CA. The posting gives a salary of $230K - $390K. Posted on Oct 22, 2026, and still on Sierra’s careers page when we last checked, on Nov 14, 2026.
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. - Turn 0-to-1 work into a…
The opening lines of the posting. The rest is on Sierra’s careers page.
Hiring at Sierra
Sierra has 198 open roles right now, 21 of them remote. Most are in Engineering, Sales & Business Development and Product. The median advertised salary across its roles with a published range is $285K. See all its roles
