Sr. Software Engineer, Backend – Falcon Auth

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. We have 3.44 PB of RAM deployed across our fleet of C* servers – 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:

Our Senior 1 title at Crowdstrike is often equivalent to Staff-to-Principal titles elsewhere in scope, impact and overall technical challenge. This role is for an experienced leader of major initiatives accustomed to owning their services/designs soup to nuts/end to end both in aspects of design through implementation, as well as in terms of operational ownership (i.e. “you build it, you run it”).

You’ll be joining the cloud backend team in the Platform product group responsible for authentication and authorization. The Auth team is responsible for both internal (e.g. Service-to-service authorization, etc.) and external (e.g. user login, etc) authN and authZ. The team is a critical part of our flagship product group supporting the Falcon Platform, frequently working collaboratively with many other product groups. The team builds and extends services that are capable of making millions of decisions per second (most recently benchmarked at 19 million TPS)!

What You’ll Do:

• Lead backend engineering efforts from rapid prototypes to large-scale applications across CrowdStrike products.
• Leverage and build cloud based systems to detect targeted attacks and automate cyber threat intelligence production at a global scale.
• Brainstorm, define, and build collaboratively with members across multiple teams.
• Obsess about learning, and champion the newest technologies & tricks with others, raising the technical IQ of the team.
• Be mentored and mentor other developers on web, backend and data storage technologies and our system.
• Constantly re-evaluate our product to improve architecture, knowledge models, user experience, performance and stability.
• Be an energetic ‘self-starter’ with the ability to take ownership and be accountable for deliverables.
• Use and give back to the open source community.

What You’ll Use:

• Go (Golang)
• OAuth
• Python
• AWS
• Kafka
• GIT
• Cassandra
• ElasticSearch
• Redis
• Postgres
• ZMQ
• AWS Cloud
• GraphQL

What You’ll Need:

• Necessary criteria to obtain GovCloud Access: (most typically, either Citizenship or PR/GC status)
• 8+ years of backend object-oriented development experience in production, with any of: Golang, Java, Scala, Node.js, Python or C# (.NET Core).
• Experience with AuthN and AuthZ
• Experience with FGA (Fine-Grained Auth rules)
• Recent experience building high scale event driven microservices architecture (at least 5M events/day +)
• The ability to scale backend systems – sharding, partitioning, scaling horizontally are second nature to you.
• Degree in Computer Science (or commensurate experience in data structures/algorithms/distributed systems).
• The desire to ship code and the love of seeing your bits run in production.
• Deep understanding of distributed systems and scalability challenges.
• Deep understanding of multi-threading, concurrency, and parallel processing technologies.
• Team player skills – we embrace collaborating as a team as much as possible.
• A thorough understanding of engineering best practices from appropriate testing paradigms to effective peer code reviews and resilient architecture.
• The ability to thrive in a fast paced, test-driven, collaborative and iterative programming environment.
• The skills to meet your commitments on time and produce high quality software that is unit tested, code reviewed, and checked in regularly for continuous integration.

Bonus Points:

• Experience with Fine Grained Access Control mechanisms like OpenFGA or Zanzibar
• Authored and led successful open source libraries and projects.
• Contributions to the open source community (GitHub, Stack Overflow, blogging).
• Existing exposure to Go, Scala, AWS, Cassandra, Kafka, Elasticsearch…
• Prior experience in the cybersecurity or intelligence fields

This role will require the candidate to periodically undergo and pass additional background and fingerprint check(s) consistent with government customer requirements.

Benefits of Working at CrowdStrike:

• Remote-friendly and flexible work culture
• Market leader in compensation and equity awards
• Comprehensive physical and mental wellness programs
• Competitive vacation and holidays for recharge
• Paid parental and adoption leaves
• Professional development opportunities for all employees regardless of level or role
• Employee Resource Groups, geographic neighbourhood groups and volunteer opportunities to build connections
• Vibrant office culture with world class amenities
• Great Place to Work Certified™ across the globe

CrowdStrike is proud to be an equal opportunity employer. We are committed to fostering a culture of belonging where everyone is valued for who they are and empowered to succeed. We support veterans and individuals with disabilities through our affirmative action program.