Sesame
Software Engineer, Character Platform & Tools
$175K–$280K
San Francisco +2 · On-site · Full-time · Posted Jan 20, 2026
- Location
- San Francisco
New York
Bellevue - Experience
- 4+ years building internal tools.
About the job
Build and maintain internal platforms and tools that help research and creative teams develop, evaluate, and iterate on voice agents.
What you'll do
- Collaborate with research and creative teams to understand workflows and identify automation opportunities.
- Design and build internal tools for engineers and non-engineers to experiment.
- Maintain and improve tools based on user feedback.
What they ask for
- 4+ years experience building internal tools with a strong sense of UI/UX.
- Experience working with ML research teams.
- Proficiency with modern web development stacks (React/Next.js, Python/FastAPI).
- Experience with cloud infrastructure (GCP/Kubernetes), reliability, security, and privacy best practices.
Pay
$175K – $280K USD base salary
Tools
React, Next.js, Python, FastAPI, GCP, Kubernetes
AI focus
Build platforms for the research pipeline that support experimentation, quality evaluation, and iteration on agentic AI.
Model-written summary · the original posting is authoritative