Senior Backend Software Engineer

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Stream

About Stream

Stream’s mission: Cut the time, cost, and hassle of managing 10B+ medical documents in workers’ comp, so professionals can focus on results, not paperwork.

We're tackling a massive problem head-on: slashing the time, cost, and frustration of handling the 10+ billion pages of medical documents bogging down the workers’ comp industry. Our mission is to build smart, AI-driven solutions that free up professionals to focus on what matters—delivering results, not drowning in paperwork. We are a YC S22 batch Insurtech startup based in San Francisco.

Before Applying

  • This is an in-person role, with 4 days/week from the Mission District office in San Francisco
  • As an early-stage startup, you'll have unmatched autonomy and ownership
  • You’ll wear multiple hats — sometimes product manager, engineer, sales, or ops
  • We care about work-life balance, but startup life may demand more than 9–5 hours when needed
  • Our team is experienced, curious, and collaborative — in our 30s, not fresh grads

The Job

As a backend software engineer at Stream, you will:

  • Design, develop, and maintain scalable and efficient backend systems
  • Deploy to production daily, enabling rapid iteration and continuous delivery
  • Work with AI models, including large language models (LLMs) and embedding models
  • Collaborate cross-functionally with product, design, and operations teams to deliver business-impacting solutions
  • Help build our engineering culture and internal processes

Our Tech Stack

  • Serverless computing using AWS Lambda and Fargate (Python)
  • CI/CD with CDK and GitHub Actions
  • Data storage with DynamoDB and Redshift
  • Frontend: Svelt (Typescript) + SST for web applications
  • AI: LLMs, embedding models, and traditional AI models (LLM experience is a plus)

Benefits

  • Health, dental, and vision insurance
  • 401(k) plan
  • Daily lunch
  • Monthly team outings
  • A team of extremely passionate, curious, and smart people

Location

    San Francisco, CA, US

Job type

  • Fulltime

Role

Engineering

Keywords

  • Engineering
  • Rem