Lead AI/ML Data Scientist at Nightfall | Palo Alto

Nightfall AIPalo Alto

Hybrid Full-time

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Experience Level

Manager

Qualifications

Responsibilities:Engage in fast-paced, hands-on execution, collaborating with the team to meet clear business objectives. Innovatively apply statistical and machine learning modeling techniques to tackle open-ended problems in enterprise security and data leak detection, researching the most effective and economical solutions. Design, train, and refine NLP and large language models for deployment in large-scale, real-time environments. Collaborate with the team to transition model prototypes to production through all phases of the machine learning lifecycle, including system architecture and data collection.

About the job

About Nightfall:

Nightfall is an innovative, AI-driven platform specializing in unified data loss prevention and insider risk management. We secure sensitive data across various environments, including SaaS applications, Generative AI tools, email, and endpoint devices. Trusted by numerous clients, from AI pioneers to Fortune 10 banks, Nightfall empowers organizations to innovate safely, mitigating the risks associated with data loss and intellectual property exposure. Our intelligent platform automates data loss prevention, allowing security teams to focus on strategic initiatives by resolving security violations proactively and providing real-time training to users.

Our endeavors are supported by top-tier venture capital firms such as Bain Capital Ventures, Venrock, WestBridge Capital, and Pear VC, alongside cybersecurity leaders including Frederic Kerrest, Maynard Webb, Ryan Carlson, and Kevin Mandia.

About the Role:

We seek a highly skilled technical leader to join our expanding team at Nightfall. As the Lead AI/ML Data Scientist within the AI Engineering organization, you will be pivotal in developing ML/NLP models and Generative AI solutions that enhance our Data Loss Prevention (DLP) and security products. This role involves spearheading research and applying advanced machine learning techniques to address security challenges, while guiding ML and backend engineers in deploying systems into production. You will also be instrumental in shaping the future architecture of our AI platform.

This position is hybrid, requiring three days in the office at our Palo Alto, California location, and represents a fantastic opportunity for those passionate about data science and machine learning engineering.

About Nightfall AI

Nightfall is at the forefront of AI-native data security, offering a comprehensive solution for data loss prevention and insider risk management. Our platform safeguards sensitive information across a multitude of channels, providing peace of mind for organizations of all sizes.

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Digital Marketing Data Scientist at ALTEN Calsoft Labs | Palo Alto

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Senior Data Scientist at Grindr | Palo Alto

Grindr LLC

Full-time|Hybrid|Palo Alto

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Scientist in Antibody Discovery at Horns Lab | Palo Alto, CA

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About Arc Institute The Arc Institute is a pioneering scientific organization committed to conducting innovative, curiosity-driven research and technology development aimed at understanding and treating complex human diseases. Based in Palo Alto, California, Arc operates independently and collaborates closely with esteemed institutions such as Stanford University, UCSF, and UC Berkeley. While traditional university research models have achieved remarkable successes, we believe that new institutional frameworks are crucial for advancing science. Our key initiatives include: Funding: We offer comprehensive funding for Core Investigators’ (PIs’) research groups, freeing scientists from the limitations of conventional project-based external grants. Technology: The field of biomedical research relies heavily on advanced tools. Our Technology Centers focus on developing, optimizing, and implementing cutting-edge experimental and computational technologies in collaboration with Core Investigators. Support: Arc is dedicated to providing exceptional operational, financial, and scientific support, allowing scientists to engage in long-term, high-risk, high-reward research that could significantly advance cures for diseases such as neurodegeneration, cancer, and immune dysfunction. Culture: We prioritize fostering a culture that emphasizes scientific curiosity, a commitment to truth, ambitious goals, and collaborative teamwork. Arc has grown to over 350 team members with more than $650 million in committed funding and a state-of-the-art laboratory facility in Palo Alto. We are poised for rapid expansion in the coming years. About the Position We are on the lookout for a highly skilled and driven Scientist to join the Horns Lab at the Arc Institute. In this role, you will spearhead the creation of an innovative platform designed to map human antibody specificities on a large scale. You will be pivotal in developing, optimizing, and implementing a high-throughput system for the identification of antigen-specific B cells and their antibody sequences via single-cell sequencing, thereby enhancing our understanding of human immunity and aiding in the discovery of new antibodies.

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Senior Data Scientist at Grindr | Palo Alto

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Full-time|$200K/yr - $200K/yr|Hybrid|Palo Alto

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Apr 22, 2026

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Lead AI/ML Data Scientist at Nightfall | Palo Alto

Nightfall AI

Full-time|Hybrid|Palo Alto

About Nightfall:Nightfall is an innovative, AI-driven platform specializing in unified data loss prevention and insider risk management. We secure sensitive data across various environments, including SaaS applications, Generative AI tools, email, and endpoint devices. Trusted by numerous clients, from AI pioneers to Fortune 10 banks, Nightfall empowers organizations to innovate safely, mitigating the risks associated with data loss and intellectual property exposure. Our intelligent platform automates data loss prevention, allowing security teams to focus on strategic initiatives by resolving security violations proactively and providing real-time training to users.Our endeavors are supported by top-tier venture capital firms such as Bain Capital Ventures, Venrock, WestBridge Capital, and Pear VC, alongside cybersecurity leaders including Frederic Kerrest, Maynard Webb, Ryan Carlson, and Kevin Mandia.About the Role:We seek a highly skilled technical leader to join our expanding team at Nightfall. As the Lead AI/ML Data Scientist within the AI Engineering organization, you will be pivotal in developing ML/NLP models and Generative AI solutions that enhance our Data Loss Prevention (DLP) and security products. This role involves spearheading research and applying advanced machine learning techniques to address security challenges, while guiding ML and backend engineers in deploying systems into production. You will also be instrumental in shaping the future architecture of our AI platform.This position is hybrid, requiring three days in the office at our Palo Alto, California location, and represents a fantastic opportunity for those passionate about data science and machine learning engineering.

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Mistral AI

Full-time|On-site|Palo Alto

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May 23, 2024

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Computational Scientist at Voltai | Palo Alto

Voltai

Full-time|On-site|Palo Alto Office

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Feb 19, 2026

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Lab Automation Engineer at Voltai | Palo Alto

Voltai

Full-time|On-site|Palo Alto Office

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Nov 12, 2025

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3D Reconstruction Scientist at Array Labs | Palo Alto, California

Array Labs

Full-time|On-site|Palo Alto, California

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Dec 11, 2025

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Chief of Staff at Array Labs | Palo Alto, CA

Array Labs

Full-time|On-site|Palo Alto, CA

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Mar 13, 2026

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Postdoctoral Researcher at Gilbert Lab | Palo Alto, CA

Arc Institute

Full-time|$80K/yr - $80K/yr|On-site|Palo Alto, CA

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Jan 15, 2026

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Postdoctoral Researcher at Jain Lab | Palo Alto, CA

Arc Institute

Full-time|$80K/yr - $80K/yr|On-site|Palo Alto, CA

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Jan 15, 2026

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Data Engineer at mindrobotics | Palo Alto

mindrobotics

Full-time|On-site|Palo Alto

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Jan 26, 2026

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Scientist, Genome Editing Technologies - Hsu Lab

Arc Institute

Full-time|$121.3K/yr - $159.5K/yr|On-site|Palo Alto, CA

About Arc Institute The Arc Institute is a pioneering scientific organization dedicated to curiosity-driven research and technological advancements aimed at understanding and treating complex human diseases. Based in Palo Alto, California, Arc operates as an independent research entity, collaborating with prestigious partners such as Stanford University, UCSF, and UC Berkeley. At Arc, we believe in the power of innovative institutional models to advance critical research initiatives. Our approach emphasizes: Funding: We provide comprehensive funding to our Core Investigators, allowing them to focus on groundbreaking research without the constraints of traditional project-based external grants. Technology: As biomedical research increasingly relies on sophisticated tools, our Technology Centers collaborate with Core Investigators to develop, optimize, and implement cutting-edge experimental and computational technologies. Support: We strive to offer exceptional operational, financial, and scientific support, empowering researchers to embark on high-risk, high-reward projects that aim to make significant strides in curing diseases such as neurodegeneration, cancer, and immune dysfunction. Culture: We prioritize creating a culture of scientific curiosity, unwavering commitment to truth, broad ambition, and selfless collaboration, which we believe are essential for sustaining excellence in research. With a thriving community of over 350 staff members and more than $650 million in committed funding, our state-of-the-art laboratory in Palo Alto positions Arc for rapid growth in the years ahead. About the Position The Hsu Lab invites applications for a Scientist role focused on the development and application of innovative genome editing technologies. Our recent discovery of Bridge Recombinases—naturally occurring RNA-guided DNA recombinases that can programmatically insert, excise, and invert DNA—marks a significant advancement in the field (Nature, 2024 and Science, 2025). The selected candidate will lead the next phase of Bridge Recombinase evolution, building on our progress with IS110 and ISCro4 as programmable tools.

Mar 10, 2026

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Embedded Software Engineer at Array Labs | Palo Alto, California

Array Labs

Full-time|On-site|Palo Alto, California

Join Array Labs, a pioneering company revolutionizing radar technology to enhance global awareness and response to environmental changes.We are at the forefront of launching an innovative fleet of radar satellites designed to create a detailed, real-time 3D map of Earth. This initiative empowers government and commercial entities to make quicker, more informed decisions in critical areas such as disaster response, infrastructure resilience, and vital geopolitical intelligence.Our end-to-end satellite design and manufacturing process results in the world’s most advanced Earth observation systems, offering unmatched accuracy, extensive coverage, and prompt responses that deliver critical insights exactly where they are most needed.As an Embedded Software Engineer, your role will involve developing embedded software that ensures Array's radar sensors, communication systems, and flight mechanisms operate flawlessly in orbit. Responsibilities will include board bring-up of Linux-based platforms, facilitating high-performance data transfer between sensors and computational elements, integration with FPGA and RF subsystems, and crafting safety-critical control and Fault Detection, Isolation, and Recovery (FDIR) algorithms.You will work closely with a team of signal processing, hardware, and Guidance, Navigation, and Control (GNC) engineers to prototype, assess, and implement software architectures that fulfill stringent latency, throughput, and reliability standards. The software you create will have a direct impact on radar performance, system robustness, and mission resilience in space.As a crucial member of our rapidly expanding engineering team, you will contribute significantly to designing the world’s most advanced radar satellite constellation, enhancing humanity's ability to swiftly and comprehensively understand our dynamic planet.

Dec 11, 2025

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Signal Processing Engineer at Array Labs | Palo Alto, California

Array Labs

Full-time|On-site|Palo Alto, California

Join Array Labs, a pioneering company dedicated to constructing sophisticated radar systems that enhance our understanding of the physical world.We are set to launch an innovative fleet of radar satellites designed to generate a real-time, high-resolution 3D map of the Earth. This groundbreaking initiative will empower government and commercial entities to make informed decisions swiftly, particularly in areas such as disaster management, infrastructure resilience, and critical geopolitical intelligence.Our commitment to excellence drives us to design and manufacture end-to-end solutions for the world’s most advanced Earth observation satellites, ensuring unparalleled accuracy and responsiveness to deliver vital insights exactly when and where they are needed.We are currently in search of a Signal Processing Engineer to be an integral part of our team, developing the core algorithms essential for this transformative project. This role presents a unique opportunity to significantly influence the creation of a pioneering system.As a member of our rapidly expanding engineering team, you will play a vital role in designing the most sophisticated radar satellite constellation, enhancing humanity's capability to swiftly and thoroughly comprehend the dynamics of our ever-changing planet.

Dec 11, 2025

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Lab Operations Technician - Polishing at PsiQuantum | Palo Alto, CA

PsiQuantum

Full-time|$63K/yr - $72K/yr|On-site|Palo Alto, California, United States

At PsiQuantum, we are on a groundbreaking mission to develop the first practical quantum computers that can realize the transformative potential of this field. Since our inception in 2016, we have dedicated ourselves to creating and implementing million-qubit, fault-tolerant quantum systems.Quantum computers leverage the principles of quantum mechanics to tackle challenges that remain insurmountable for even the most sophisticated supercomputers and AI systems. Their potential impact spans critical sectors such as energy, pharmaceuticals, finance, agriculture, transportation, materials, and various foundational industries.Our innovative architecture is built upon silicon photonics, enabling us to harness advanced semiconductor manufacturing processes in collaboration with partners like GlobalFoundries. This technology allows us to produce billions of chips efficiently, capitalizing on the unique advantages of photonics, including immunity to electromagnetic interference and seamless integration with existing cryogenic cooling and fiber-optic infrastructure.In 2024, PsiQuantum embarked on government-backed projects to establish our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives underscore the growing acknowledgment of quantum computing's strategic and economic importance, signaling an opportune moment for scaling.We also develop the essential algorithms and software to enhance the commercial viability of these systems. Our application, software, and industry teams collaborate closely with leading Fortune 500 companies—including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical—to deliver quantum solutions with real-world implications.Quantum computing signifies a fundamental evolution beyond classical computing, paving the way to overcome challenges that traditional methods cannot address. The opportunities are vast, and we possess a clear trajectory to bring them to fruition.Join our team and be part of this revolutionary journey.

Mar 4, 2026

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Innovative Research Scientist Position at Simular | Palo Alto

Simular

Full-time|On-site|Palo Alto

Join us at Simular, where we are at the forefront of developing agentic AI technologies. We invite you to be part of a dynamic team dedicated to pioneering advancements in artificial intelligence that will shape the future of human-agent interactions.Your RoleAs a Research Scientist at Simular, you will:Lead groundbreaking research initiatives in planning, reinforcement learning, multimodal reasoning, grounding, and AI alignment, focusing on critical areas such as reward modeling and AI safety.Design and implement comprehensive experiments encompassing data collection, benchmarking, model training, and evaluation processes.Develop innovative methodologies that enhance AI agent capabilities and reliability, collaborating with top-tier scientists and engineers to achieve significant academic and product outcomes.Work closely with engineering teams to integrate research prototypes into practical applications.Contribute to the AI research community by publishing and presenting findings at prestigious conferences.Engage in hands-on scientific advancement through method design, dataset creation, experimental execution, and benchmarking against state-of-the-art standards.

Oct 10, 2025

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Director of Web at Rubrik | Palo Alto

Rubrik

Full-time|On-site|Palo Alto, CA

Join Rubrik as the Director of Web, where you will lead our web strategy and enhance our online presence. You will be responsible for overseeing the development and execution of our web initiatives, ensuring alignment with our business goals. This role requires a strategic thinker with a passion for technology and a talent for leading cross-functional teams.

Mar 20, 2026

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Lead AI/ML Data Scientist at Nightfall | Palo Alto

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