AI Systems Researcher/Engineer
Brave
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.
- ...AI Systems Researcher / Research Engineer UK: London (Preferred) - Hybrid 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...SuggestedFull timeWork experience placement
- ...infrastructure for the global AI economy. We are building a... .../ML infrastructure. Built by engineers, for engineers. From large-scale... ...or Principal Applied AI Researcher to join a fast growing team building... ...the web access layer for AI systems. You can think of this as...SuggestedFull time
- ...into new regions. We wrote our systems from scratch about 4 years ago... .... There’s also freedom to research and implement new technologies... ...Apache RocketMQ, RabbitMQ - Search Engine: ElasticSearch, Mongo Atlas -... ...by a member of our team (AI is not used in our recruitment...SuggestedFull timeLocal areaRemote work
- ...AI Security Researcher / Research Engineer Remote or hybrid - London preferred About Brave: Brave is on a mission to protect the human right to privacy... ...the security risks that come with building AI systems-especially LLM-powered web agents and chatbots. In this...SuggestedFull timeWork experience placementRemote work
- ...molecular biology expertise to help develop foundational generative AI models. You will strengthen the quality of AI training data... ...task development. Key Responsibilities Partner with research and engineering teams to identify gaps in molecular biology reasoning and...SuggestedHourly payRemote workWeekday work
- ...expert who keeps high-performance, scalable systems running and who makes sure a 24/7 SaaS... ...critical to the business. We build with AI-assisted development tools as a core part... ...Infrastructure Lead and work closely with the engineering and product teams. You will maintain and...Full time
€53k - €64k per year
...As a Sr. Delivery Systems Engineer you will be working with CI/CD Platforms, Hands-on owning Jenkins, Artifactory, AWS EC2, Linux, Chef/CINC... ...innovation. CCC helps organizations harness the power of data, AI, and machine learning to drive strategic decision-making, grow...Work experience placementWeekend work£100k - £160k per year
...Inc. is powering the future of physical AI. Founded in 2017 and now valued at $15 billion... ...: tools and infrastructure, operating systems, and autonomy. Eighteen of the top 20... ...commitments. About The Role As a Systems Engineer on the UK Engineering team, you will...Full timeFor contractorsFor subcontractorCasual workWork at officeRemote workDay shift- ...nuclear fusion and applying it in adjacent industries including Battery Energy Storage Systems (BESS) and DC Fast Charging for electric vehicles. About the Role As a Principal Engineer in the Systems Architecture team, you will take a lead role in the development of...Full time
- ...mission to create public transportation systems that provide far greater access to jobs... ...provider globally. As an Algorithm Researcher at Via, you’ll join our R&D team in... ...development, data science, and software engineering . You’ll work on complex algorithmic problems...Full timeWork at office
- ...longest-established and largest multidisciplinary consultancy, engineering and operations firms in the country. Today we have more than 6... ...operational areas to ensure delivery of a safe and coherent system. Leading review of existing rail and station systems to inform...Full time
$72k
...The associate researcher or research associate will be engaged in translational cancer research projects focused on regulators of growth, survival and drug resistance of breast and other cancers, as well as their microenvironment, including immune effectors. The researcher...Permanent employmentFull time- ...partnering across Credit Risk, Product, Engineering, Analytics, and Commercial teams to shape... ...translation of insight into production systems. This is a high-leverage role with real... ...rather than operating purely in offline research environments. A track record of...Full timeWork at officeImmediate start
- ...the industry, built to advance an open, global financial system. Before you apply, we encourage you to explore our... ...institutional clients. The Agent Systems team is a 0→1 engineering group building internal AI-powered agents that interact directly with company...Remote jobFull timeLocal area
- ...Staff Data Scientist to join our Research and Intelligence organisation... ...to own multiple projects and systems end to end, shape technical... ...Intelligence, Product, and Engineering to move research from prototype... ...AWS Postgres AI at Chainalysis AI is not a feature...Remote jobFull timeFlexible hours
- ...As Founding Engineer (m/w/d), you’ll join us as our first technical hire... ...The challenge ahead is turning a research-grade prototype into a product that... ...architecture of our production system, including orchestrated data/ NLP pipelines, AI/ML integrations, CI/CD,...Full timeWork at officeFlexible hoursShift work
- ...problems, working in partnership with our clients to help in achieving their goals. Sword is looking for an experienced Senior Systems Engineer to join our Managed Services team. You’ll support and improve customer systems across on-premise and datacentre environments....Permanent employmentFull timeFlexible hours
- ...foundational inorganic chemistry knowledge and researching chemical phenomena and processes in... .... Model, test and characterize HLM systems, particularly liquid lead, and describe... ...phenomena at high temperature to support the engineering of reliable and scalable chemistry...Permanent employmentContract work
- ...Responsibilities Peptide Design & Computational Pipeline Set up and maintain the computational design pipeline, using generative AI tools such as RFpeptide and BoltzGen. Perform physics-based filtering of designs via molecular dynamics simulations (e.g. Amber,...Live in
€20k per year
...agreements with clients and partners. Research legal questions raised by our Product, Project... ...internal processes, including with AI-based legal tech tools. Monitor regulatory... ...create something entirely new. No legacy systems, no limits. Wellbeing: Recharge with...Contract workTemporary workPart timeFixed term contractInternshipRemote workFlexible hours- ...besoins et les comportements des utilisateurs et faire grandir une culture centrée client. Votre mission : En tant que Lead UX Research, votre mission est de développer la recherche utilisateur comme un levier stratégique de décision et un pilier visible de la...Full timeTemporary workWork at office
- ...Instrument & Electrical Reliability Engineer JOB-10047109 Anticipated Start Date October 19, 2026 Location... ...performance, and improvement of plant instrumentation and electrical systems. You will collaborate closely with operations, maintenance, and...Full timeContract workLocal area
- ...Let’s go! Your mission As a software engineer within Bitpanda’s Trade Hub, you will help design, build and scale the core systems that power our trading ecosystem end-to-end... ...using tools like Drive innovation by researching and adopting the latest trends and technologies...Full timeInternshipWork at officeRemote workWorldwideShift work
- ...of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Research Analyst - Associate Managing Consultant Our Purpose We work to connect and power an inclusive, digital economy that benefits...Full timeWorldwide
- ...greatest potential. Title and Summary Manager, Site Reliability Engineering About Mastercard Mastercard is a global technology... ...payment infrastructure, including real-time payments, settlement systems, direct debits, and a nationwide ATM network of nearly 60,000...Full timeWorldwideFlexible hours
- ...in crypto transactions. We are looking for a Site Reliability Engineer to join our Core team to encourage infrastructure best... ...grow rapidly. The SRE team at blockchain combines software and systems engineering to provide a platform that abstracts complexity for...Full timeApprenticeshipWork at officeRemote workWorldwide
$52 - $56 per hour
...Description Manage large projects Provide technical support to chemists and non-managerial direction Perform analysis and research with minimal supervision Develop practical and robust analytical methods for chemicals and materials used in the semiconductor...Full timeContract workTemporary workLocal areaImmediate start$50 per hour
...Compensation: Up to $50 per task About the Role We are seeking individuals to complete small, remote market research tasks from home. Your insights help shape future products, services, and public trends. All tasks are flexible, part-time, and can be done on your...Part timeStart working todayRemote workHome officeFlexible hoursWeekend workAfternoon shift- ...environment by monitoring availability and taking a holistic view of system health - Build software and systems to manage platform... ...continually improve - Provide primary operational support and engineering for multiple large distributed software applications How will...Full timeWork experience placementWork at officeRemote workFlexible hours
- ...their greatest potential. Title and Summary Site Reliability Engineer II RiskPS BizOps team is looking for a Site Reliability Engineer... ...operations engineer will ensure operational criteria like system availability, capacity, performance, monitoring, self-healing,...Full timeWork experience placementWorldwideShift work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to AI Systems Researcher/Engineer. Be the first to apply!


