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Software Engineer, Systems

Braintrust · On-site

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Last seen by MeritLog September 8, 2026Source: AshbySource version: ashby-public-job-posting-v1

MeritLog read this listing from Braintrust's Ashby job board and last checked it on September 8, 2026.

Source: the employer's Ashby job board. Open the original listing for current details.

Job details

Work model
On-site
Salary
Not listed by source
Location
San Francisco
Occupation
Software Developers(O*NET 15-1252.00)
Company website
braintrust.dev

Hiring context

How this role compares at Braintrust

Braintrust has 26 live roles in MeritLog’s catalog across 5 job families, and 12 of them are in engineering. 1 of those listings publish a pay range, a disclosure rate of 4%.

Braintrust concentrates this hiring in:

Counted across the job boards MeritLog tracks, at the time this page was served. Pay comparisons use only listings that publish a complete range in the same currency and period.

Job description

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. 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. Check out our Brainstore blog post https://www.braintrust.dev/blog/brainstore. 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 https://www.braintrust.dev/docs/reference/btql. - 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 EQUAL OPPORTUNITY 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.

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