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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Engineer II, Sensor - Sensor Performance Engineering - **Company:** CrowdStrike - **Location:** Redmond, WA, United States - **Experience:** Expert - **Salary:** $160,000.0 - $250,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Application Programming Interfaces (APIs), Artificial Intelligence, Application Performance Management, Systems Engineering, Computer Programming, Databases, Extract Transform Load (ETL), Desktop Virtualization, Distributed Systems, Internet Security, Intrusion Detection Systems, Virtual Private Networks (VPN), Microsoft SQL Server, M Programming Language, Management of Software Versions, Windows Kernel - **Published:** August 10, 2026 - **Apply:** https://www.careerbuilder.com/job-details/sr-engineer-ii-sensor-sensor-performance-engineering-hybrid-redmond-wa--e9a817ad-73eb-4d18-b7ea-f903de3f1825 ## About the Role * 10+ years of hands-on Windows kernel-mode development or deep Windows systems engineering * Expert-level proficiency with Windows Performance Analyzer (WPA), xperf, ETW/WPP tracing, and ETL file analysis - including stack attribution, CPU sampling, and per-component time accounting * Strong working knowledge of Windows kernel APIs relevant to endpoint security: registry filter manager callbacks, process/thread notification callbacks, load image callbacks, access token and impersonation APIs * Experience navigating complex multi-process interactions: file I/O storms, SCM/RPC-driven registry operations, process enumeration overhead, and their cascading effects on application performance * Proven experience utilizing AI technologies to enhance decision-making, streamline workflows and processes, improve efficiency and drive business outcomes. Bonus Points: * Background in enterprise performance benchmarking/analysis: SQL Server under load, VDI/AVD multisession, AnyConnect/VPN stack interactions, Cluster Shared Volume I/O * Track record of generating architectural ideas and advocating for them constructively within mulit-team environments., Accounting, Analysis Skills, Application Programming Interface (API), Architectural Services, Artificial Intelligence (AI), Audiovisual, Benchmarking, Bridge Building, CPU (Central Processing Unit), Civil Engineering, Compensation and Benefits, Customer Escalations, Customer Support/Service, Database Extract Transform and Load (ETL), Desktop Virtualization, Distributed Computing, E Programming Language, Endpoint Security, HIV/AIDS (Acquired Immune Deficiency Syndrome), Input/Output, Instrumentation, Internet Security, Kernel Programming, Large-Scale Systems, Machine Tool, Medical Conditions, Medical Genetics, Microsoft SQL Server, Microsoft Windows Operating System, Operations Processes, Performance Analysis, Performance Engineering, Problem Solving Skills, Process Improvement, RPC (Remote Procedure Call), Requirements Validation/Verification, Systems Engineering, VPN (Virtual Private Network) ## Description The Sensor Performance Engineering team is seeking a Senior 2 Engineer to serve as a deep technical authority on Windows sensor performance. This is a hands-on role for an engineer who bridges kernel-mode internals, ETW/WPA trace analysis, and enterprise customer escalations. You will own the most complex performance investigations, shape the team's diagnostic tooling, and serve as an architectural voice for how the Falcon sensor interacts with Windows subsystems at the lowest levels. CrowdStrike protects the world's most critical enterprises. The Sensor Performance Engineering team ensures the Falcon sensor does that without impacting the performance of the systems it protects. This role sits at the intersection of kernel engineering, performance science and customer impact - where the problems are genuinely hard, the stakes are high, and the work directly shapes the experience of some of the largest deployments in the world., * Own deep-dive performance analysis of the Falcon sensor on Windows, from initial triage through root cause to shipped fix - including application compatibility and AV/EDR process interaction issues. * Drive development and improvement of ETW-based diagnostic instrumentation, extending WPP providers, adding new event IDs, versioning existing events - to give the team visibility into previously opaque code paths. * Perform WPA/ETL analysis for customer support cases and internal benchmarking, including ETWReader-based bottleneck identification and per-component CPU attribution across sensor subsystems. * Review and author PRs targeting Windows sensor performance improvements: load image callbacks, registry filter drivers, and process/thread notification routines. * Identify sensor observability gaps and push for tooling to close them. ## Related Videos - [Systems Thinking for Performance: How to Diagnose and Fix Slow Systems without Guessing](https://www.wearedevelopers.com/videos/2103-systems-thinking-for-performance-how-to-diagnose-and-fix-slow-systems-without-guessing) - [Fake or News: Translating Dog Barks, Notepad Gets an Upgrade and Michelin-Star Robots - Paul Tregoing](https://www.wearedevelopers.com/videos/1802-fake-or-news-translating-dog-barks-notepad-gets-an-upgrade-and-michelin-star-robots-paul-tregoing) - [How Web AI Can Power the Agentic Web - Jason Mayes (Google)](https://www.wearedevelopers.com/videos/1896-how-web-ai-can-power-the-agentic-web-jason-mayes-google) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [Don't Be A Naive Developer: How To Avoid Basic Cybersecurity Mistakes](https://www.wearedevelopers.com/videos/498-don-t-be-a-naive-developer-how-to-avoid-basic-cybersecurity-mistakes) - [Java Meets AI: Empowering Spring Developers to Build Intelligent Apps](https://www.wearedevelopers.com/videos/1554-java-meets-ai-empowering-spring-developers-to-build-intelligent-apps) ## Related Articles - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 119 - ❤️ === ❤️](https://www.wearedevelopers.com/magazine/454-dev-digest-119) - [Dev Digest 138 - Are you secure about this?](https://www.wearedevelopers.com/magazine/486-dev-digest-138-are-you-secure-about-this) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Dev Digest 129 - Now that's what I call private data!](https://www.wearedevelopers.com/magazine/468-dev-digest-129-now-that-s-what-i-call-private-data)