Real artists
sign their work
Your work will ship inside machines that sit in the most protected rooms on earth, where almost no one will ever see them. We think that’s exactly why they should be signed.
“Security has a dirty secret. The organizations with the most to protect get the least protection. Their data cannot leave their control, and the industry’s best tools live in a cloud they cannot use. So they make do with less. Less data, less AI, less defense. We started Cylake to end that dilemma.”
Read
before applying
Most security companies write software and rent someone else’s computers. We build the whole thing. The visibility, policy, and detection engine, the data lake, the AI, and the hardware it all runs on.
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We are obsessed with cybersecurity; it’s all we care about. We’re a growing and highly experienced team focused on long-term architecture and impact. We focus on human intelligence first and foremost and have an in-office approach to our work that spans hardware, software, data, and applied AI. We foster creative thinking, intense collaboration, open communications, and taking immense pride in everything we do.
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We ship a product you can touch. Racks, drives, silicon, firmware, software. Hardly anyone in this industry remembers how to do that. You’ll learn or you’ll teach.
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Air-gapped networks. Defense, critical infrastructure, governments, banks, healthcare. The places where “just use the cloud” is not an answer. Your work protects the networks that matter most and get served worst.
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No twenty-year-old codebase, no installed base to protect, no roadmap debt. The architecture is being decided right now, and you’ll be in the room.
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Dysfunctional architectures, sloppy pseudo-AI, costs that climb while outcomes decline. After 20+ years of working with thousands of organizations, this team knows exactly what needs fixing.
Video series
Video series
On once again rebuilding cybersecurity from scratch.
Video series
On going back on-premises after the industry moved to the cloud.
Video series
On shipping a machine you can touch.
From the team that built the biggest security companies on earth
Previously
- Palo Alto Networks
- SentinelOne
- More…
Sign the inside
of the box
All open positions 12
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Software Infrastucture Engineer
Full-time Sunnyvale
ApplyYou will be responsible for architecting and implementing the platform layer (Bootloader through system software) on a large scale embedded system. This will also include image and software lifecycle management - packaging, upgrades, high availability, and telemetry/debug infrastructure. You will have the opportunity to design and implement the system from the ground up.
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Backend Engineer
Full-time Sunnyvale
ApplyYou will be responsible for designing and building the management layer for a distributed embedded system. This includes designing the policy structure, configuration storage and reliability, secret management, and engines that enable these capabilities. This will allow you to build a performant and robust system from the ground up, having a direct impact on the success of the product line.
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Data Pipeline Engineer
Full-time Sunnyvale
ApplyDesign, build, and maintain a scalable, open-source data lakehouse architecture supporting petabyte-scale analytics workloads. Responsible for architecting end-to-end data pipelines from ingestion through transformation to consumption, ensuring high performance, reliability, and data quality.
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Frontend UI Engineer
Full-time Sunnyvale
ApplyWe're building a next-generation AI-native cybersecurity platform from the ground up. Unlike traditional SaaS products, our platform runs entirely within customer-controlled environments and processes massive volumes of security telemetry, system activity, and enterprise data.
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Endpoint Engineer
Full-time Sunnyvale
ApplyYou will serve as a technical leader responsible for building our core endpoint security agent from the ground up, providing comprehensive visibility and protection across Windows, Linux, and macOS. You will architect a lightweight, highly resilient agent capable of deep OS introspection, autonomous threat prevention, and sophisticated offline telemetry spooling. You will tackle complex challenges in user-mode hooking, kernel-level behavioral analysis, anti-tampering, and distributed systems design to deliver a seamless, high-performance security client.
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Software Engineer (2027 University Grad)
Full-time Sunnyvale
ApplyYou will be involved throughout the product lifecycle, from idea generation and design to implementation and delivery. Your work will become part of our cybersecurity platform protecting enterprises and organizations around the world. Support and assistance from the team are available for your year-one transition and together we grow. Available tracks to start your journey are as follows,
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Director, Supply Chain and Operations
Full-time Sunnyvale
ApplyWe're looking for an exceptional Supply Chain leader to build our supply chain foundation that will bring Cylake’s first product to market.
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Windows System Software Engineer
Full-time Sunnyvale
ApplyWe are looking for an exceptional Windows systems engineer with deep expertise in Windows kernel internals, operating system architecture, and endpoint technologies, who understands Windows below the Win32 API, from the NT kernel and executive subsystems to process lifetime management, memory internals, and modern platform security.
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Product Designer
Full-time Sunnyvale
ApplyWe're looking for a Product Designer to help shape the user experience across our cybersecurity platform. You'll work across our product portfolio, from analyst workflows to administrative controls and executive dashboards, designing experiences that make complex security capabilities feel intuitive and approachable. You'll partner closely with our design, engineering, and product teams to extend our design system, contribute reusable patterns, and raise the bar on usability and visual polish as the platform grows. The ideal candidate brings strong UX fundamentals, a sharp eye for visual design, and genuine enthusiasm for turning technical complexity into experiences that security professionals actually enjoy using.
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GTM / Business Recruiter
Full-time Sunnyvale
ApplyWe're looking for our first Go-to-Market & Business Recruiter to build the commercial organization that will bring Cylake's products to market and into customer environments. As one of the earliest members of the People team, you'll partner directly with our founders and business leaders to attract and hire exceptional talent across Sales, Marketing, Customer Success, Business Operations, Finance, and other critical business functions.
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Security Researcher (Detection Systems)
Full-time Sunnyvale
ApplyAs a subject matter expert in cyber attack and defense, you will architect and build comprehensive threat detection capabilities for our next-gen security platform, leveraging your deep understanding of the evolving threat landscape. You will also develop innovative research systems and tools to deliver broad, scalable threat coverage. This key leadership role offers the opportunity to shape the future of threat detection in the cybersecurity industry.
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Applied AI Engineer
Full-time Sunnyvale
ApplyYou will build state-of-the-art AI capabilities for Cylake's next-generation cybersecurity platform. Working at the intersection of artificial intelligence and cybersecurity, you will develop agentic AI systems, build machine learning solutions, and train deep learning and LLM models that enable security teams to detect, investigate, and respond to threats at scale.