Braintrust
AI & Machine LearningDirect Ashby career site

Software Engineer, Systems

Location
San Francisco, CA · On-site
Job type
Full-time
Level
Mid-level
Listed
23 days ago

Skills & highlights for this role

  • C++
  • Rust
  • database systems
  • concurrency
  • operating systems

Also useful

  • GPT models
  • prompt engineering

Stated benefits & perks

  • Medical
  • Dental
  • Vision

About the Role

We're looking for a software engineer who loves to build high performance data processing systems. Our customers are scaled up companies who send complex, semi-structured data which they need to process and analyze in real-time. Our unique architecture allows them to store this data on-prem, while creating complex visualizations that load instantly.

If you've worked on database systems, compilers, networks, or storage systems, and want to translate this knowledge to the AI field, this could be the role for you. You will play a significant role in the foundational system architecture, technology choices, and implementation. Our founding team has deep expertise in database and ML systems, and you'll be empowered to both collaborate closely with them and explore your own ideas.

What You'll Do

As a systems engineer at Braintrust, you’ll help build the core systems powering Braintrust's ability to process and query massive volumes of unstructured data at enterprise scale. Areas of ownership include:

  • Contribute to the storage, indexing, and query execution performance of Brainstore.
  • Expanding Braintrust's btql query language
  • Optimizing query patterns to improve performance across our platform.

Ideal Candidate Credentials

  • Expert-level understanding of systems programming (C++ or Rust, concurrency, databases, operating systems)
  • Previous experience founding or working at startups is a plus
  • Has written prompts / tinkered with GPT models and apps

Benefits Include

  • Medical, dental, and vision insurance
  • Daily lunch, snacks, and beverages
  • Flexible time off
  • Competitive salary and equity
  • Wifi & cellphone stipend

About the Company

Braintrust is the agent observability platform. By actively applying intelligence to agent traces and automatically surfacing the most critical patterns, Braintrust gives teams the visibility to understand how agents behave in production and the tools to improve them.

Teams at Notion, Stripe, Box, OpenAI, and Cloudflare use Braintrust to trace their agents, find the issues in their observability data, and run evals that tell them how to improve.

Equal opportunity and legal notices

Braintrust is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.

Read the original posting

From Braintrust's careers page, first listed on Rolev.ai on October 17, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

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Common questions

Where is the Software Engineer, Systems job at Braintrust located?

This Software Engineer, Systems position at Braintrust is located in San Francisco, CA (On-site). Always check Braintrust's application page for specific state eligibility or relocation policies.

What qualifications are required for Software Engineer, Systems at Braintrust?

For the Software Engineer, Systems role, Braintrust highlights experience with C++, Rust, database systems, concurrency, operating systems. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Software Engineer, Systems position at Braintrust?

This listing links directly to Braintrust's Ashby application page. You can apply directly on Braintrust's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.

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