Software Engineer, Systems

Braintrust is seeking a Software Engineer, Systems to build high-performance data processing systems for its AI observability platform. This role involves contributing to the storage, indexing, and query execution performance of Brainstore, expanding the btql query language, and optimizing query patterns. The ideal candidate will have an expert-level understanding of systems programming and will play a significant role in foundational system architecture and technology choices.

Must Have

• Expert-level understanding of systems programming (C++ or Rust, concurrency, databases, operating systems)

Good to Have

• Previous experience founding or working at startups
• Has written prompts / tinkered with GPT models and apps

Perks & Benefits

• Medical, dental, and vision insurance
• Daily lunch, snacks, and beverages
• Flexible time off
• Competitive salary and equity
• AI Stipend

About the company

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Braintrust is the AI observability platform. By connecting evals and observability in one workflow, Braintrust gives builders the visibility to understand how AI behaves in production and the tools to improve it.

Teams at Notion, Stripe, Zapier, Vercel, and Ramp use Braintrust to compare models, test prompts, and catch regressions — turning production data into better AI with every release.

About the role

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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

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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

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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

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• Optimizing query patterns to improve performance across our platform.

Ideal candidate credentials

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• 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

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• Medical, dental, and vision insurance

• Daily lunch, snacks, and beverages

• Flexible time off

• Competitive salary and equity

• AI Stipend

Equal opportunity

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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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