Sr. Site Reliability Engineer - Core Platform & Embedded Reliability (Hybrid)
Build and maintain the foundational libraries and services that power CrowdStrike’s cloud-native cybersecurity platform, ensuring reliability and scalability for trillions of daily events.
- Compensation
- $140K–$215K / yr
- Location
- USA - New York, NY
- Work setup
- Hybrid
- Seniority
- Senior
- Employment
- Not specified
- Experience
- 5+ years
- Category
- Sre
- Posted
Skills
Must have
- 10+ years of experience building and operating distributed systems and service‑oriented backends at scale.
- 5+ years developing microservices for a SaaS product in a modern backend language (Go, Java, Scala, Kotlin, Python, Node.js).
- Expert‑level proficiency in at least one programming language, with expert‑level Go or demonstrated ability and willingness to reach expert level in Go.
- Deep understanding of distributed systems: consensus algorithms, replication, consistency models, failure modes, and scalability patterns.
- Proven experience scaling backend systems — sharding, partitioning, horizontal scaling, capacity planning, and performance optimization are second nature.
- Deep understanding of multi‑threading, concurrency, and parallel processing.
- Track record of making impactful architectural decisions at organizational scope and seeing them through to production.
- Strong systems thinking and the ability to influence without direct authority across organizational boundaries.
- Thorough command of engineering best practices: appropriate testing paradigms, effective peer code review, and resilient architecture.
- Ability to thrive in a fast‑paced, test‑driven, collaborative, and iterative environment; strong team‑player orientation.
- A desire to ship code and a love of seeing your bits run in production.
- Degree in Computer Science, or commensurate experience in data structures, algorithms, and distributed systems.
- Proven experience utilizing AI technologies to enhance decision-making, streamline workflows and processes, improve efficiency and drive business outcomes.
Nice to have
- Experience driving reliability improvements in organizations with hundreds or thousands of microservices.
- Deep knowledge of Kubernetes or other large‑scale orchestration systems.
- Hands‑on experience with AWS, Cassandra, Kafka, Elasticsearch/OpenSearch, or similar large‑scale distributed technologies.
- Experience with Google Cloud Platform (GCP).
- Experience with Oracle Cloud Infrastructure (OCI).
- Experience delivering or operating services across multiple cloud providers, including multi‑cloud abstraction layers, portability, and cloud‑agnostic tooling.
- Track record of building internal platforms, developer platforms, or tools that other engineers depend on.
- Experience with infrastructure cost optimization at scale.
- Background in performance engineering: profiling, optimization, and identifying system bottlenecks.
- Experience with chaos engineering or resilience testing practices.
- History of establishing SLO/SLI frameworks and error budgets in production environments.
- Contributions to the open source community (GitHub, Stack Overflow, technical blogging).
- Prior experience in the cybersecurity or intelligence fields.
Full 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 proud to work for a mission-driven company leveraging AI to transform the way we work. CrowdStrikers drive their careers through flexibility and autonomy while also being expected to contribute to a culture of responsible AI adoption, experimentation, and innovation. We use an AI-first mindset as a force multiplier to proactively and continuously accelerate execution, build expertise, uncover insights, and solve complex problems. 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:
CrowdStrike Falcon is the industry standard in cloud‑native cybersecurity and threat hunting, processing trillions of events per day. As a Principal SRE, you will operate at the intersection of our Core Platform and Embedded Reliability charters: building the foundational libraries, services, and tooling that every product group depends on, while embedding directly with product engineering teams and their leadership to drive reliability outcomes at scale.
While we embrace the SRE moniker, at CrowdStrike it means something far more service‑oriented and engineering‑heavy than traditional operations. This is hands‑on systems engineering — writing production code, re‑architecting critical systems, and eliminating entire classes of failure — not ticket management. It is far and away our most self‑driven and autonomous backend engineering role, with the freedom to move up, down, and laterally across the stack as needed.
You'll join a group with bottom‑up visibility and ownership of a fast‑expanding codebase (including AI‑based Detection & Response) and a far‑reaching mandate for service resiliency. Several key feature additions and critical re‑architecture initiatives are underway: deploying core services to additional cloud providers, modularizing into reusable components, improving core libraries and frameworks, maturing observability tooling (tracing, profiling, alerting, SLOs), and automating away manual toil across all of the above. Recent examples of the team's work include introducing adaptive concurrency into our core Kafka library to implement flow control that protects database performance, resolving critical issues in leader election libraries, and building infrastructure‑as‑code tooling that eliminated manual deployment processes.