- Location
- Sunnyvale, California, United States
- Employment
- Full time
- Level
- Mid level
- Posted
- 6 months ago
About this role
Your Impact
Join a small team building the next generation of cybersecurity products from the ground up. Led by industry veterans with a proven track record of success - you will get to architect, build, and deliver hugely impactful products with this world class team. You will have the opportunity to grow your career and skills along with the company from the very start.
Role Overview
You 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.
Required Experience
5+ years of experience in systems-level programming and architecting highly concurrent applications
Strong Rust programming skills with a focus on high-performance, low-level OS integrations
Deep understanding of Windows OS internals, including ETW, IPC, Named Pipes, and Windows Services
Experience with cross-platform endpoint telemetry collection utilizing Linux eBPF and macOS ESF
Proven experience in dynamic binary instrumentation, user-mode API interception, and process injection
Experience designing and optimizing low-overhead threat detection heuristics directly on the endpoint
Knowledge of Windows kernel-mode components, specifically designing File Filter Drivers for data-in-motion tracking
Experience architecting resilient distributed systems with offline disk spooling and secure mTLS synchronization
Understanding of offensive and defensive endpoint security concepts, anti-tampering mechanisms, and process protection
Experience building highly reliable agent lifecycles, self-healing architectures, and fail-safe rollback mechanisms
Strong communication and documentation skills
Experience with Microsoft Anti-Malware vendor registration (ELAM, PPL) is a plus
Experience with browser extension development or DOM hooking is a plus
We offer competitive compensation and a comprehensive benefits package designed to support our employees’ health, well-being, and long-term success. The expected salary range for this position is $150,000 - $250,000 per year. Within this range, individual pay is determined based on job-related factors including skills, experience, qualifications, and internal equity. Most candidates can expect an offer within the range listed above. Your recruiter will provide additional details on compensation and benefits to qualified candidates during the hiring process.
We’re committed to building a diverse, inclusive workplace where everyone can do their best work. We are proud to be an equal opportunity employer and do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic. If you require a reasonable accommodation during the application or interview process, please let us know - we’re happy to support you.
As published by Cylake. Applications are handled on their site.
Skills this posting mentions
About Cylake
Cylake is building a complete, AI-native, data-driven cybersecurity platform for the world’s largest and most regulated institutions. Our approach does not depend on the public cloud; instead, it’s designed to operate on-premises or in private cloud environments, so that our customers retain full data and operational control. Our platform is currently under development, in consultation with several design partners, and is planned for general availability in early 2027.
All 15 openings at CylakeOne click, then it is written
Apply to Cylake with a resume written for this role.
Queue Endpoint Engineer and I read the posting, rewrite your resume against it, draft the cover letter, and score the fit. Then you press send, or press one button and I fill in Cylake’s form for you.
01Drop your resume
A PDF or a LinkedIn URL. About a minute, once.
02I rank the openings
Every weekday morning, the live catalog scored against your history. Up to 20 worth your time, not two hundred links.
03Each one is written up
Resume rewritten for the posting, a cover letter, a fit score. Press send, or let me fill in the form.
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Paste your career in once. Every application after that is written for you.
Drop a resume or a LinkedIn URL. I rank the live openings against it, rewrite the resume and write a cover letter for the best of them, and fill in the employer's form when you press the button. You read, you decide what goes out.
01Drop your resume
A PDF or a LinkedIn URL. About a minute, once.
02I rank the openings
Every weekday morning, the live catalog scored against your history. Up to 20 worth your time, not two hundred links.
03Each one is written up
Resume rewritten for the posting, a cover letter, a fit score. Press send, or let me fill in the form.
- New matches ranked and written before you are up.
- Every bullet stays inside what your history supports. Nothing invented.
- Queued, submitted, interviewing, offer: one screen, not a spreadsheet.
500 free credits on sign-up. No card. Nothing is sent until you say so.
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