Staff Software Engineer, Backend Infrastructure

The role

This person will design, build, and maintain secure core infrastructure and lead the architecture of modern ML training and model serving systems. They will also own the low-latency voice interface and audio processing pipeline.

What you will do

• Design, build, and maintain secure, maintainable, self-serve core infrastructure.
• Lead the architecture and evolution of a modern ML training infrastructure.
• Build and operate a modern model serving architecture.
• Lead and own the low-latency voice interface and audio processing pipeline.
• Build developer tooling, server infrastructure, and data infrastructure.
• Lead technical direction within your domain and raise the engineering bar.

Required qualifications

• 7+ years of software engineering experience, with significant time in infrastructure, platform, or ML systems roles.
• Hands-on reliability engineering experience with observability, monitoring, deployment systems, and loosely coupled architectures.
• Proven track record of building and shipping services at scale.
• Significant production experience building, operating, and scaling Kubernetes clusters.
• Experience designing and shipping flexible domain models and APIs.
• A default toward automation.
• Strong communication skills.

Nice to have

• Infrastructure as Code at scale, preferably Terraform, CloudFormation, Pulumi, or Kubernetes-based approaches.
• PyTorch experience, especially model optimization for serving.
• ML training or serving experience in general.
• Experience building ML serving and/or training infrastructure (TorchServe, Seldon, KServe, Ray Serve, or similar).
• Experience building and leading large-scale distributed training and serving systems.
• Data engineering including pipeline design, dataset management, or data platform experience.
• Database design including complex schema design, query optimization, and hard data modeling decisions.
• Real-time communication systems such as low-latency audio, video, or streaming infrastructure.

Benefits

• 401 (k) max employer match: 3.5% of compensation
• 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)
• Guardian Employee Assistance Program (EAP)
• Opportunity to share in the company's success with competitive stock options

About the company

Sesame is designing a new kind of computer focused on making voice agents part of daily lives. The team includes founders from Oculus and Ubiquity6, alongside leaders from Meta, Google, and Apple.