---
title: 'AI Systems Researcher/Engineer at Brave'
canonical: 'https://feeny.ai/job/ai-systems-researcher-engineer-brave-north-america-eu-sy10qkcn05a2'
type: 'job'
last_seen: '2026-09-14'
---

# AI Systems Researcher/Engineer at Brave

- **Company:** Brave
- **Location:** North America EU, United Kingdom
- **Posted:** 2026-08-26
- **Last confirmed live:** 2026-09-14
- **Apply:** https://job-boards.greenhouse.io/brave/jobs/8159413

## Job description

AI Systems Researcher / Research Engineer

London (Preferred) - Hybrid, or Remote in North America, EU, UK

## About Brave

Brave is on a mission to protect the human right to privacy online. We’ve built a free web browser that blocks creepy ads and trackers by default, a private search engine with a truly independent index, private AI assistant, latest privacy and security features, and a private ad network (opt-in!) that directly rewards you for your attention. Already over 120 million people regularly use Brave for a faster, more private web. Millions more switch every month.

The internet is a sea of ads, hackers, and echo chambers. Big Tech makes huge profits off our data, and tells us what’s true and what’s not. Brave is fighting back. Join us!

Summary

Join us at Brave as we redefine the future of online experiences with a range of cutting-edge, top-performing products. We’re seeking an experienced AI Systems and Performance Researcher/Engineer to shape and improve our performance evaluations and optimizations across desktop and mobile. If you’re passionate about innovation, privacy, and delivering impactful AI solutions, this is your opportunity to make a difference. We need you to help with a wide range of key products, ranging from our browser ML models, novel applications, on-device AI agents, performance evaluations, and collaborating closely with privacy and security researchers to protect the users from AI risks.

## About you

An ideal candidate will have a mix of skills that include the following:

- Demonstrates a high level of initiative and consistently delivers high-quality solutions
- Has an enquiring mind and a disciplined scientific approach to extracting facts and understanding observed behavior
- Is excited by the potential of realizing high-value commercial outcomes and change the way that the advertising business operates
- Want to be part of a high-growth startup company with global ambitions
- Experience with software development practices (Python, C++, JavaScript and/or Rust)
- Has a proven track record implementing data driven products and a broad understanding of the state of the art in systems and networks
- Comfortable working in an open-source setting
- Able to create and deploy mobile/desktop applications and systems
- Has a passion for helping protect users’ privacy and security
- A Ph.D. in computer science is highly preferred, but we may consider some exceptions with industry experience

Specific Skills

- Background and/or previous work in AI systems research and performance evaluation.
- Expertise in optimizing and evaluating ML models and/or privacy & security technologies for on-device performance.
- Experience with modern Machine Learning (ML) frameworks (e.g., Pytorch, TensorFlow, MLX, ONNX Runtime, Core ML, TensorRT, etc.).

Skills That Will Set You Apart from the Competition

- ML Systems (pipelines, performance evaluation, etc.)
- Open source projects on mobile/desktop systems optimization
- Experience with confidential computing and security/privacy protocols
- Ph.D. in computer science from a top-tier school
- A strong publication record in premier systems, performance, or ML
- Work experience in industry is desirable

Working at Brave - What we offer

- Ability to work at an exciting and well-funded international startup headquartered in San Francisco
- Cutting-edge technology, allowing you to work with state-of-the-art tools and software solutions
- Competitive compensation and plenty of room for personal growth
- Great international exposure and team atmosphere

We are looking to hire in London but would consider an exceptional candidate in the rest of Europe.

NO AGENCIES or RECRUITERS PLEASE - Unfortunately, we cannot work with third parties on these searches.

## About Brave

## Company Overview
- **One-liner**: Brave develops a privacy-first web browser and independent search engine that blocks ads and trackers by default, while offering a suite of tools including AI, VPN, crypto wallet, and an advertising platform.
- **Entity Type**: Private (funding details not publicly disclosed)
- **Headquarters**: San Francisco, California, USA (with an additional office in London, UK)
- **Founded**: 2015
- **Founders**: Brendan Eich (creator of JavaScript, co-founder of Mozilla) and Brian Bondy (formerly of Khan Academy and Mozilla)

## Core Business
- **Primary industry**: Internet software – privacy-focused browser, search engine, and advertising.
- **Target customers**: B2C (consumers seeking private browsing) and B2B (advertisers through Brave Ads, developers via the Brave Search API).
- **Mission**: “To build a user-first Web” – countering Big Tech’s data exploitation by giving users privacy, speed, and independence.

## Products & Services
- **Brave Browser**: A Chromium-based desktop and mobile browser that blocks invasive ads, trackers, cross-site cookies, fingerprinting, and more by default. Available on Android, iOS, Linux, macOS, and Windows.
- **Brave Search**: An independent search engine powered by its own web index – one of only three global-scale indexes outside of Big Tech. Includes AI-powered answers (Summarizer) and a conversational interface (Ask Brave).
- **Brave Search API**: A publicly available API that provides real-time, independent search data for AI applications and other search tools. Used by Cohere, Mistral, Perplexity, You.com, and others.
- **Brave Ads**: A private advertising network that offers high ROI for advertisers while respecting user privacy. Users can opt in to view ads and earn Basic Attention Token (BAT).
- **Brave Leo**: An AI assistant built directly into the browser. Can answer questions, summarize pages, generate content, translate, write code, and more. Supports multiple models including Anthropic’s Claude and Meta’s Llama.
- **Brave Wallet**: A browser-native, multi-chain crypto wallet for NFTs, DApps, and DeFi, with low fiat-to-crypto fees.
- **Brave VPN**: A secure, built-in VPN that hides IP address and masks location.
- **Brave Talk**: Browser-based encrypted video calling (peer-to-peer).
- **Brave Rewards / BAT**: Users earn Basic Attention Tokens for viewing privacy-respecting ads, and can use them to support content creators.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed.
- **Key Metric**: Over 100 million monthly active users (MAU) worldwide, 42 million daily active users (DAU), and 1.6+ billion queries per month as of early 2025.
- **Notable Investors/Partners**: Partnerships include AI companies like Cohere, Mistral, Perplexity, and You.com (via Search API). Other partners are not detailed in public materials; press contacts available for inquiries.
- **Growth Signals**: Surpassed 100M MAU in 2025; Search API usage growing at an exponential rate; continuous expansion of language support (50+ for browser, 40+ for Search); new AI features (Leo, Summarizer) driving adoption.

## Competitive Advantages
- **Independent search index**: Brave Search is the only global-scale search engine not influenced by Google or Microsoft.
- **Privacy-by-default**: Unlike other browsers, Brave blocks ads, trackers, and fingerprinting out of the box – no extensions needed.
- **Integrated AI**: Leo offers a private, account-free AI assistant directly in the browser, with no data retention for model training.
- **Token ecosystem**: BAT and Brave Rewards create a unique economic model that directly compensates users and content creators.
- **Multi-product suite**: Browser, search, VPN, wallet, video calls – all in one app with a consistent privacy focus.

## Strategic Focus
- **Growing the Search API**: Making Brave’s independent index available to AI and search applications at competitive pricing.
- **Advancing AI capabilities**: Expanding Leo’s models and features (e.g., memory, temporary chats, language support) while maintaining privacy.
- **Increasing user base**: Continuing to grow beyond 100M MAU through word-of-mouth, partnerships, and default search settings.
- **Monetizing without compromising privacy**: Scaling Brave Ads and premium offerings (Brave Premium, VPN) while keeping core products free.

## Why Work Here
- **Culture & mission**: Employees are driven by the mission to fix the internet’s privacy problems and take on Big Tech.
- **Remote & hybrid options**: Many roles are fully remote (US and global), with hybrid options for London and San Francisco offices. Some positions (e.g., Workplace Operations Coordinator in London) require in-office presence.
- **Engineering excellence**: Described as a “world-class engineering, security, and research team” – notable for working on cutting-edge browser internals, AI, and blockchain/crypto.
- **Diversity & inclusion**: Brave is an equal opportunity employer that values diversity and does not discriminate.
- **Global team**: Employees work from around the world; offices in San Francisco and London.
- **Typical perks**: Not explicitly listed, but the company offers a modern tech stack, opportunities to work on open-source (Chromium), and the chance to shape the future of the web.

## Sources
1. [brave.com/about](https://brave.com/about/)
2. [brave.com/careers](https://brave.com/careers/)
3. [brave.com](https://brave.com/)
4. [linkedin.com/company/brave-software](https://www.linkedin.com/company/brave-software)
5. [builtin.com/company/brave](https://builtin.com/company/brave)

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