Sesame
Software Engineer, Character Platform & Tools
San Francisco · Contract
Sponsorship not specifiedDetected 183 days ago
PythonReactNext.jsFastAPIFull-Stack DevelopmentGCPCloud PlatformsKubernetesMachine LearningResearchCollaboration
About the role
- That quality doesn't come from models alone.
- It comes from tight collaboration between engineers, ML researchers, and the creative professionals who define what a believable character is.
- This is a full-stack engineering role focused on the internal tooling and platforms that power our character research pipeline.
Responsibilities
- Design and build internal tools that let engineers, researchers, and creative professionals experiment with and assemble configurations of models - importing datasets, running training jobs, evaluating outputs - without needing to write code for every workflow
- Build rich evaluation interfaces that surface model quality in ways that are readable and actionable for everyone, not just engineers
- Collaborate closely with ML researchers and creative teams to deeply understand their workflows, then find the automation opportunities that accelerate their work
- Demonstrated 4+ years experience building and shipping production full-stack systems, with a strong sense of UI/UX for tools designed to be used by experts in other fields
- Experience building internal platforms or tooling, not just features - you think about the system, not just the ticket
- A strong sense of reliability and knowing when to build vs. borrow
- Curiosity about the domain: you don't need to be an ML engineer, but you should want to understand what you're building tools for
- The best platforms don't just support a workflow - they transform who can participate in it.
- Sesame believes in a future where computers are lifelike - with the ability to see, hear, and collaborate with us in ways that feel natural and human.
Requirements
- Proficiency with modern web stacks (we use React/Next.js and Python/FastAPI)
- Experience with cloud infrastructure (we're on GCP/Kubernetes)
- Comfort working across disciplines - researchers, creative professionals, and operators - and translating between very different ways of thinking
Compensation
- 401 (k) max employer match: 3.5% of compensation
Benefits
- 100% employer-paid health, vision, and dental benefits for you and your dependents
- Unlimited PTO and sick time
- Flexible spending account with employer matching up to $1,650/year (medical FSA)
- Opportunity to share in the company's success with competitive stock options
- Benefits do not apply to contingent/contract workers.
- With this vision, we're designing a new kind of computer, focused on making voice agents part of our daily lives.
This listing is sourced directly from Sesame's careers page and normalized into a canonical job model.