[Hiring] Software Engineer III, Core Services & Libraries @CrowdStrike

Role Description

The Core Services & Libraries team builds and owns the shared Go libraries and platform capabilities that CrowdStrike's engineering organization runs on. If an engineer needs to talk to a data store, publish a message, make a service call, manage feature rollouts, or handle failures gracefully — they reach for something this team built.

You'll own foundational software that has to be right:

• Well-designed APIs that tens of teams adopt
• Resilience patterns that hold up under real-world failure
• Cloud abstractions that let services deploy anywhere without caring where

The scope is broad and growing — spanning data access, messaging, service communication, multi-cloud portability, observability, and security — with plans to extend beyond Go into other language ecosystems.

What You’ll Do:

• Build and own shared libraries that engineers across the company depend on for data access, messaging, service communication, observability, and resilience
• Design APIs that get adopted — your interfaces need to be good enough that teams choose them over building their own; that means thoughtful defaults, clean abstractions, backward compatibility, and strong documentation
• Build multi-cloud abstractions that let services run across cloud providers and on-premise environments without vendor-specific code
• Design and implement resilience patterns — retries, circuit breakers, load shedding, graceful degradation — as reusable primitives that become the default for every service
• Build platform capabilities — feature management, traffic control, disaster recovery, and sharding as composable libraries
• Own the security posture of shared dependencies — keep foundational libraries current, remediate vulnerabilities, and ship secure defaults
• Participate in architectural governance — propose, review, and shepherd RFCs that set direction for the services ecosystem
• Advocate and consult — be a trusted advisor to engineering teams adopting shared libraries; help them make the right architectural choices, unblock integration challenges, and feed their needs back into the platform
• Partner with Data Services, Infrastructure, SRE, and Observability — your libraries sit on top of their platforms; build strong working relationships that keep shared libraries aligned with operational reality
• Operate what you build — on-call rotations, production triage, and using operational insight to make the libraries better

Qualifications

• Strong Go expertise — you've built production libraries or frameworks, or have deep experience designing APIs and abstractions consumed by other engineering teams
• Distributed systems depth — hands-on experience with message brokers, data stores, service communication frameworks, and the failure modes that come with distributed architectures
• Library and API design sensibility — you understand backward compatibility, versioning, migration paths, and what makes an API that developers actually want to use
• Cloud infrastructure experience — meaningful experience with at least one major cloud provider, ideally including multi-region or multi-cloud patterns
• Operational maturity — you've owned production reliability for systems you've built, debugged incidents under pressure, and turned those experiences into improvements
• 5+ years of software engineering experience, with meaningful time in platform, infrastructure, or developer tools

Bonus Qualifications:

• Experience building or contributing to widely-adopted open source libraries
• Background in developer experience — migration tooling, documentation, developer portals
• Cost-conscious engineering — understanding how library defaults affect infrastructure spend at scale
• Deep knowledge of messaging system internals — consumer groups, partition strategies, delivery guarantees
• Multi-cloud migration experience — abstracting vendor-specific APIs behind clean interfaces
• Observability expertise — distributed tracing, metrics pipelines, structured logging
• Experience designing resilience primitives — rate limiting, circuit breakers, load shedding, retry budgets
• Experience with large-scale SDK migrations or safe deprecation of widely-used libraries

Benefits

• 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 Networks, geographic neighborhood groups, and volunteer opportunities to build connections
• Vibrant office culture with world class amenities
• Great Place to Work Certified™ across the globe