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Software Engineer, Systems

Braintrust Data — Tracked from its ashby job board

San Francisco · New York City · Seattle Mid Posted Mar 29, 2024
C++RustAI/LLMML

About the role

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.

What the index says about this role

  • First seen by JobLarper — Aug 2, 2026, 6 days ago. Older postings collect hundreds of applicants — a tailored résumé matters more the longer a role has been live.
  • No pay range in our index for this listing. Across 1,685 indexed Software Engineer roles in US that do publish one, the middle half sits between $185k and $285k, median $225k — JobLarper's read of the market, not a figure from Braintrust Data.
  • What Software Engineer roles ask for — across 10,230 indexed openings: REST/APIs (46%), Backend (42%), Cloud (38%), Python (38%), Go (25%). This posting names AI/LLM, ML.
  • Braintrust Data is hiring actively — 13 open roles indexed.

Derived from the 27,000 roles JobLarper indexes daily from official company boards — not from the job description above.

⚡ JobLarper watched this role appear on Braintrust Data's official board on Mar 29, 2024. Sign up free to get alerted minutes after roles like this go live, and tailor your real résumé to the exact description — nothing invented.

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