Sr. Engineer, Backend - Lightning (Hybrid)
CrowdStrikeUSA - Sunnyvale, CAPosted 26 February 2026
Job Description
As a global leader in cybersecurity, CrowdStrike protects the people, processes and technologies that drive modern organizations. Since 2011, our mission hasn’t changed — we’re here to stop breaches, and we’ve redefined modern security with the world’s most advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day and this traffic is growing daily. Our customers span all industries, and they count on CrowdStrike to keep their businesses running, their communities safe and their lives moving forward. We’re also a mission-driven company. We cultivate a culture that gives every CrowdStriker both the flexibility and autonomy to own their careers. We’re always looking to add talented CrowdStrikers to the team who have limitless passion, a relentless focus on innovation and a fanatical commitment to our customers, our community and each other. Ready to join a mission that matters? The future of cybersecurity starts with you. About the Role: The Falcon endpoint agent is able to react in near-real-time to changes in the threat landscape, and underpinning this is the ability of the endpoint agent to quickly query our cloud for new information. This system operates within tight latency and response time constraints at a scale matched by few other environments, and the scale is only growing. CrowdStrike is seeking a Senior Software Developer, Backend for our Detections Platform team. This role is part of a team responsible for the cloud services that provide security information to the endpoint agent in near-real-time. The services that store this information aren’t always near-real-time themselves, so we use a variety of strategies for caching, backpressure, and partial responses. You’ll be thinking about how to build high-quality systems that scale cleanly and reliably, and then implementing those ideas primarily in Go (and also some Python). Detections Platform is involved across the entire product line and you’ll work closely with other groups across the company. You’ll also be working in an environment where quality is the company culture. CrowdStrike is a computer security company, but we do not require candidates for this role to have prior security industry experience. We will mentor and train in security topics as needed. We do expect a strong interest in CrowdStrike's mission and a willingness to engage with the needs of our product teams and customers. We’re building a welcoming & flexible team that prizes collaboration over competition, one which provides opportunities to learn new skills, mentor junior and senior developers and contribute to the direction of both the team & the products for which we’re responsible. This is a high trust environment where we allow team members to manage their own time, take holidays as they need it and reward them with competitive salaries and equity. This role is hybrid, requiring 2-3 days per week on-site at one of the posted locations. What You'll Do: Build and evolve cloud-based systems to detect and disrupt targeted attacks at a global scale. Brainstorm, design, and build collaboratively with members across multiple teams. Build elegant and performant solutions for complex technical problems in Go. Read and critique code in the multiple programming languages in use in our environment (Go, Python, Unix shell, among others), and provide technical guidance and feedback to team members Focus on continual learning, raising the bar for both yourself and your teammates. Leverage our understanding of engineering best practices, including topics like appropriate testing paradigms, effective peer code reviews, logging, and resilient architecture patterns, to ensure that our code is clean. Be an energetic ‘self-starter’ with the ability to take ownership and be accountable for deliverables, both individually and when leading a team. Deliver and accept feedback with grace and courtesy. Collaborate on determining root causes of production outa ... (truncated, view full listing at source)
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