Principal Engineer, API Platform at Coreweave

CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability. Founded in 2017, CoreWeave became a publicly traded company (Nasdaq: CRWV) in March 2025. Learn more at www.coreweave.com. What You’ll Do: CoreWeave is the AI Hyperscaler™, and the Cloud Experience organization owns the customer-facing interfaces to our platform: Console UI, REST/gRPC APIs, Infrastructure-as-Code, CLI, and SDKs. This team is responsible for delivering a unified, secure, scalable developer experience across products and services. About the role: CoreWeave is seeking a Principal Engineer for our API Platform, working across the engineering organization to define and evolve our public API platform and developer interfaces. We’re actively standardizing on a gRPC-first foundational interface (with generated REST) to accelerate delivery of SDKs, Terraform, and platform-wide consistency; the role will be a primary driver of this transition and its long-term technical direction. In this role, you will: • Deliver a cohesive, reliable CoreWeave Cloud API that becomes the foundation for all developer touchpoints (Console, SDKs, CLI, IaC), enabling customers to self-serve provisioning and operations at scale. • Deliver an internal API Governance strategy to drive consistency and standardization of our public interfaces, and to increase velocity of internal stakeholders. • Drive our IaC-first strategy and enable day-one Terraform support for new GA products, accelerating time-to-first-production for customers and reducing operational load. • Establish and meet API reliability goals and partner with production engineering on SLIs/SLOs, observability, and incident response maturity. • Shape identity and access management evolution toward unified, fine-grained access policies across products, ensuring consistent authorization patterns and developer experience. Who You Are: • 10+ years of experience building and operating public APIs and backend services in production, including ownership of reliability and security outcomes. • Proficiency in Go and experience with Terraform, protobuf/gRPC and REST design. • Strong understanding of cloud computing infrastructure using Kubernetes, scalable architectures, and automation. • Strong communication and leadership skills; track record of delivering cross-organizational initiatives as the technical lead • Excellent analytical and problem-solving skills, with the ability to synthesize problem statements from interactions with customers and design solutions given ambiguous requirements. • Solid grounding in CI/CD, testing strategies, and safe rollout/deprecation practices for API changes. • Prior contributions to Terraform providers or similar IaC tooling, including registry distribution, versioning, and upgrade guidance. • Strong observability skills (metrics, logs, tracing) and practical experience defining API SLIs/SLOs. Preferred: • Experience with Kubernetes control-plane/API design patterns and CRD ergonomics; ability to bridge KRM and gRPC/REST interfaces where appropriate. • Experience with alternative IaC models such as Crossplane and Pulumi. • Expertise with API gateways, rate limiting, multitenancy, and edge security at scale. • Understanding of authentication, authorization, and policy frameworks; proven ability to integrate IAM into API surfaces with consistent semantics. Wondering if you’re a good fit? We believe in investing in our people, and value candidates who can bring their own diversified experiences to our teams – even if you aren't a 100% skill or experience match. Why CoreWeave? At CoreWeave, we work hard, have fun, and move fast! We’re in an exciting stage of hyper-growth that you will not want to miss out on. We’re not afraid of a little chaos, and we’re constantly learning. Our team cares deeply about how we build our product and how we work together, which is represented through our core values: • Be Curious at Your Core • Act Like an Owner • Empower Employees • Deliver Best-in-Class Client Experiences • Achieve More Together We support and encourage an entrepreneurial outlook and independent thinking. We foster an environment that encourages collaboration and provides the opportunity to develop innovative solutions to complex problems. As we get set for take off, the growth opportunities within the organization are constantly expanding. You will be surrounded by some of the best talent in the industry, who will want to learn from you, too. Come join us! The base salary range for this role is $206,000 to $303,000. The starting salary will be determined based on job-related knowledge, skills, experience, and market location. We strive for both market alignment and internal equity when determining compensation. In addition to base salary, our total rewards package includes a discretionary bonus, equity awards, and a comprehensive benefits program (all based on eligibility). What We Offer The range we’ve posted represents the typical compensation range for this role. To determine actual compensation, we review the market rate for each candidate which can include a variety of factors. These include qualifications, experience, interview performance, and location. In addition to a competitive salary, we offer a variety of benefits to support your needs, including: • Medical, dental, and vision insurance - 100% paid for by CoreWeave • Company-paid Life Insurance • Voluntary supplemental life insurance • Short and long-term disability insurance • Flexible Spending Account • Health Savings Account • Tuition Reimbursement • Ability to Participate in Employee Stock Purchase Program (ESPP) • Mental Wellness Benefits through Spring Health • Family-Forming support provided by Carrot • Paid Parental Leave • Flexible, full-service childcare support with Kinside • 401(k) with a generous employer match • Flexible PTO • Catered lunch each day in our office and data center locations • A casual work environment • A work culture focused on innovative disruption Our Workplace While we prioritize a hybrid work environment, remote work may be considered for candidates located more than 30 miles from an office, based on role requirements for specialized skill sets. New hires will be invited to attend onboarding at one of our hubs within their first month. Teams also gather quarterly to support collaboration California Consumer Privacy Act - California applicants only CoreWeave is an equal opportunity employer, committed to fostering an inclusive and supportive workplace. All qualified applicants and candidates will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information. As part of this commitment and consistent with the Americans with Disabilities Act (ADA), CoreWeave will ensure that qualified applicants and candidates with disabilities are provided reasonable accommodations for the hiring process, unless such accommodation would cause an undue hardship. If reasonable accommodation is needed, please contact: [Upgrade to PRO to see contact]. Export Control Compliance This position requires access to export controlled information. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157, or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency. CoreWeave may, for legitimate business reasons, decline to pursue any export licensing process.