Open Source Engineer - Python
Location
Remote; New York City; Seattle
Employment Type
Full time
Department
Engineering
Overview
Application
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 hiring engineers to build the open-source libraries that customers use to observe, understand, and optimize how AI operates inside their production applications. These SDKs are a critical part of Braintrust’s platform. They power evaluation and observability pipelines across a wide range of environments, frameworks, and AI providers.
This role is ideal for engineers who are passionate about developer experience, API craftsmanship, and building fast, reliable, and idiomatic libraries. You’ll own the full SDK lifecycle: design, implementation, release, documentation, and community support. Your work will be embedded in thousands of applications and help define how AI is adopted and operationalized across industries.
What You’ll Do
Build elegant, idiomatic, and resilient SDKs that power Braintrust’s LLM evaluation and AI observability platform.
Ensure our libraries are easy to use, efficient to run, and a delight to work with, prioritizing developer experience and performance.
Integrate with major AI providers, frameworks, and platforms our customers rely on, such as OpenAI, Anthropic, and Gemini.
Build tools and automation to improve testing, profiling and simplify release workflows.
Collaborate closely with backend, platform, and product teams to ensure a cohesive and polished developer experience.
Be a great community ambassador: talk with our users, understand their issues, help them get their fixes merged and have deep empathy for our users.
You Might Be a Fit If You:
Are customer-obsessed and passionate about solving real-world problems for developers.
Have deep expertise in Python and understand what it takes to build fast, idiomatic, and reliable libraries in that ecosystem.
Are proficient with the tooling needed to build robust SDKs, such as testing frameworks, profilers, CI/CD pipelines, and packaging systems.
Care deeply about developer experience, from clean APIs and clear docs to thoughtful error handling and backward compatibility.
Know how to wrap, patch, or extend existing frameworks and SDKs to inject observability and control without breaking developer workflows.
Have experience maintaining or contributing to production-grade open-source libraries, ideally used across multiple environments.
Bonus: You’ve contributed to popular open source projects, led SDK adoption at your organization, are familiar with tracing and observability tools like OpenTelemetry, or worked on tools in the LLM/AI ecosystem.
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.
Apply for this Job
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Listed by Braintrust Data for a position based in the United States. Employers on this board attest they are hiring domestically.
Engineering
408 days ago
Open Source Engineer - Go
Braintrust Data · San Francisco, California, United States
Open Source Engineer - Go
Location
Remote; New York City; Seattle
Employment Type
Full time
Department
Engineering
Overview
Application
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 hiring engineers to build the open-source libraries that customers use to observe, understand, and optimize how AI operates inside their production applications. These SDKs are a critical part of Braintrust’s platform. They power evaluation and observability pipelines across a wide range of environments, frameworks, and AI providers.
This role is ideal for engineers who are passionate about developer experience, API craftsmanship, and building fast, reliable, and idiomatic libraries. You’ll own the full SDK lifecycle: design, implementation, release, documentation, and community support. Your work will be embedded in thousands of applications and help define how AI is adopted and operationalized across industries.
What You’ll Do
Build elegant, idiomatic, and resilient SDKs that power Braintrust’s LLM evaluation and AI observability platform.
Ensure our libraries are easy to use, efficient to run, and a delight to work with, prioritizing developer experience and performance.
Integrate with major AI providers, frameworks, and platforms our customers rely on, such as OpenAI, Anthropic, and Gemini.
Build tools and automation to improve testing, profiling and simplify release workflows.
Collaborate closely with backend, platform, and product teams to ensure a cohesive and polished developer experience.
Be a great community ambassador: talk with our users, understand their issues, help them get their fixes merged and have deep empathy for our users.
You Might Be a Fit If You:
Are customer-obsessed and passionate about solving real-world problems for developers.
Have deep expertise in Go and understand what it takes to build fast, idiomatic, and reliable libraries in that ecosystem.
Are proficient with the tooling needed to build robust SDKs, such as testing frameworks, profilers, CI/CD pipelines, and packaging systems.
Care deeply about developer experience, from clean APIs and clear docs to thoughtful error handling and backward compatibility.
Know how to wrap, patch, or extend existing frameworks and SDKs to inject observability and control without breaking developer workflows.
Have experience maintaining or contributing to production-grade open-source libraries, ideally used across multiple environments.
Bonus: You’ve contributed to popular open source projects, led SDK adoption at your organization, are familiar with tracing and observability tools like OpenTelemetry, or worked on tools in the LLM/AI ecosystem.
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.
Apply for this Job
Powered by
Privacy PolicySecurityVulnerability Disclosure
Listed by Braintrust Data for a position based in the United States. Employers on this board attest they are hiring domestically.
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 backend engineer who’s excited to build the infrastructure behind cutting-edge AI development tools.
Under the hood, Braintrust is a real-time, high-availability data platform that operates in both SaaS and self-hosted environments. You’ll help scale our ingestion pipelines, evolve our open source libraries, and ensure everything runs reliably, observably, and fast. If you thrive in a fast-paced environment and enjoy solving hard systems problems with a product mindset, we’d love to work with you.
What you'll do
As a backend engineer at Braintrust, you’ll help build the core platform powering LLM-native development:
Design and ship features that give users deep insight into their LLM usage and performance.
Build from scratch the unifying layer that proxies, caches, and normalizes calls across OpenAI, Anthropic, Gemini, and every other provider our customers depend on.
Develop and evolve robust, efficient open source libraries for tracing and evaluating LLM calls inside customer applications. Check out our SDKs
Build highly available real-time data pipelines to ingest, store, and query large volumes of structured and semi-structured AI usage data.
You will also collaborate closely with our product engineers to ship polished, end-to-end features that solve real problems for our customers, such as:
Bundling and uploading javascript and python code snippets to be used as online, on-demand function calls for LLM workflows.
Support for parsing and uploading attachments from LLM multimodal outputs into long term storage.
Role-based access controls and data retention policies for enterprise use cases.
Ideal candidate credentials
5+ years of backend engineering experience across multiple parts of the stack
Strong systems thinking: you’ve owned or contributed to infrastructure projects and know how to design for scale, uptime, and data integrity
Proficient in modern backend technologies (e.g., Node.js, Go, Python, Rust, Postgres, Redis, Terraform, Docker, AWS)
Experience with observability tooling (e.g., Grafana, Prometheus, Datadog, or similar) and a passion for making systems operable, available and rock solid.
Comfortable with ambiguous problems and excited to partner across the company to ship impactful work
Clear communicator who documents decisions, shares context, and helps lift the team
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.
Listed by Braintrust Data for a position based in the United States. Employers on this board attest they are hiring domestically.
Cloud Infrastructure Engineer
Location
San Francisco; New York City; Seattle
Employment Type
Full time
Location Type
On-site
Department
Engineering
Overview
Application
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 Cloud Infrastructure Engineer to help us build reliable, scalable infrastructure and give developers a world-class platform to ship code with speed and confidence. You’ll lead efforts across Terraform, Kubernetes, CI/CD, observability, and support, and play a key role in how we scale Braintrust both internally and for customers self-hosting our platform.
This is a high-impact role where you’ll contribute across our internal AWS environment and help customers deploy our stack in AWS, Azure, and GCP.
What you’ll do
Build and maintain Terraform modules for both internal infrastructure and customer deployments
Work directly with customers in Slack to support self-hosting and troubleshoot infrastructure issues. Build tools to make it easier for them to support themselves.
Own and improve our CI/CD pipeline: reduce build times, improve failure visibility, and enable safer, faster releases
Centralize and scale observability - including logs, metrics, dashboards, and alerts
Partner with engineering teams to build and evolve a secure, developer-friendly infrastructure platform
Support multi-cloud deployment patterns (AWS primarily, with Azure and GCP support for enterprise customers)
Implement tools and automation to improve deployment, rollback, and infrastructure reliability
Ideal candidate credentials
5+ years of experience in DevOps, SRE, or Infrastructure Engineering roles
Deep experience with Terraform and at least one major cloud provider (AWS strongly preferred)
Strong Kubernetes skills: deploying, debugging, and scaling real workloads
Proficient in scripting or programming (Python, Typescript, or Go)
Experience supporting production systems and responding to incidents
Comfortable working directly with customers in a support or deployment context
Bonus: experience with multi-cloud environments or self-hosted enterprise software
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.
Apply for this Job
Powered by
Privacy PolicySecurityVulnerability Disclosure
Listed by Braintrust Data for a position based in the United States. Employers on this board attest they are hiring domestically.
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 sales development representatives to find and engage new prospects for Braintrust. The ideal candidate will be driven, curious, and eager to dive deep into the AI tech landscape, and capable of engaging in meaningful, technical conversations with prospective customers.
What you’ll do
Research, identify, and reach out to prospects within targeted accounts through multi-channel outreach (calls, email, LinkedIn).
Consistently deliver on established monthly meeting targets that will contribute to revenue growth.
Identify key decision makers and champions within new large enterprise and strategic accounts.
Stay up-to-date with industry trends and AI developments to better understand and engage with prospects.
Ideal candidate credentials
Bachelor's degree or equivalent practical experience in a relevant field.
1+ years in a sales or relevant role with a track record of success and high performance.
Ability to work independently in a fast-paced environment, managing multiple priorities with a results-driven approach.
Strong interpersonal and communication skills, capable of effectively engaging and building relationships with a technical audience.
A love for making an impact and working with a team to hit key goals and metrics.
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.
Listed by Braintrust Data for a position based in the United States. Employers on this board attest they are hiring domestically.
Design Engineer
Location
San Francisco; New York City; Seattle
Employment Type
Full time
Department
Engineering
Overview
Application
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 design engineer who loves working on complex problems and designing products that power-users love to use on a daily basis. Our primary users are engineers and PMs at innovative tech companies who spend multiple hours a day using our product to run experiments, analyze user behavior, and try out new ideas, seamlessly shifting between their code and our UI.
In this role, you will:
Play a significant role in developing the core user experience of our product. You will work across UI, API, and SDK, ensuring that Braintrust is a seamless tool in every AI engineer’s work day.
Work closely with our users to deeply understand their needs and contribute to the product roadmap. You are comfortable owning the entire product lifecycle from gathering requirements to ideating, designing, and implementing.
Partner closely with our product and engineering teams. You’ll work to establish and implement a design system that enables rapid product iteration.
Ideal candidate credentials
You have experience designing zero to one B2B products with complex requirements.
You enjoy building things and are familiar with modern devtools (send us a link to your Github!).
You have owned problems end-to-end, and are willing to pick up whatever knowledge you’re missing to get the job done.
You have thrived in environments where things are sometimes loosely defined and may have competing priorities or deadlines.
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.
Apply for this Job
Powered by
Privacy PolicySecurityVulnerability Disclosure
Listed by Braintrust Data for a position based in the United States. Employers on this board attest they are hiring domestically.
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 product engineer who is passionate about building tools that users love and use every day. You'll work on the core product, hang out with users (developers, product managers, and designers working in AI), and play a key role in shaping the roadmap.
Under the hood, Braintrust is a high performance, local-first, visualization-heavy UI built with modern Typescript and React. Our users work at some of the world's best technology companies and expect our product to be lightning fast, reliable, and intuitive.
What you'll do
Core responsibilities:
Ensuring our customers always have a frictionless experience for enabling AI observability in their systems.
Contribute to foundation UI architecture that focuses on performance and efficient data loading patterns.
Build the user-facing pieces of Braintrust, such as:
A first-class prompt playground experience supporting multiple models across thousands of user inputs.
A system for prompt management, configuration, and versioned comparisons.
A fully multiplayer, scalable human review system.
LLM output analysis and comparison across arbitrarily large datasets.
Ideal candidate credentials
Expert-level understanding of Typescript, React, HTML, CSS, SQL, NextJS
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.
Listed by Braintrust Data for a position based in the United States. Employers on this board attest they are hiring domestically.
Software Engineer, Systems
Location
San Francisco; New York City; Seattle
Employment Type
Full time
Department
Engineering
Overview
Application
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.
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
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.
Apply for this Job
Powered by
Privacy PolicySecurityVulnerability Disclosure
Listed by Braintrust Data for a position based in the United States. Employers on this board attest they are hiring domestically.
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