Senior Software Engineer API Platform & Client Tooling

What Youll Do:

The Cloud Platform API team builds the API platform and the tooling that every other engineering team at CoreWeave uses to ship and consume APIs. This role sits with the group that owns CoreWeaves Go framework for building API services (server code and tooling) and the client surface it generates: SDKs the CWIC command-line tool and the Terraform provider. The teams charter is one proto definition should produce every client surface generated and released the day the API ships. Today that tooling is written by hand one service at a time and it lags the API; this role helps make generation the default path.

About the role:

As a Senior Engineer on API Platform & Client Tooling youll design and build the code-generation pipeline that turns a single proto contract into Go SDKs CWIC commands and Terraform resources. Youll own components end to end from the proto and API contract through the generated artifacts other teams depend on and raise the quality bar for the developer experience across that whole surface. Because this team is CoreWeaves internal API consultancy youll also partner with other teams early in their design process to help them ship good consistent APIs. Expect a mix of hands-on Go engineering API design and cross-team collaboration.

In this role you will:

• Own components of our API services framework (server code and tooling) and its generated artifacts: proto-driven code generation that emits Go SDKs CWIC commands and Terraform resources from a single source of truth.
• Design and ship proto and API contracts applying schema evolution and backwards-compatibility discipline and help author and enforce CoreWeave API Standards in CI.
• Champion developer experience across the CLI SDKs and Terraform provider: ergonomics release cadence and the quality bars that make every other CoreWeave team faster.
• Work across authentication and identity understanding how auth contracts (access keys service accounts JWKS mTLS and OIDC) flow from proto into generated clients.
• Act consultatively: help other teams design and ship good APIs and services.
• Drive team-level technical initiatives to completion and mentor junior and mid-level engineers.

Who You Are:

• Production experience writing Go.
• Experience designing and evolving APIs: versioning backwards compatibility and deprecation.
• Experience building or maintaining client tooling: SDKs CLIs or infrastructure providers (Terraform Pulumi or Crossplane).
• A track record of owning a project or initiative end to end and operating independently.
• Clear communication about your technical contributions and how you collaborate.

Preferred:

• Experience with code generation of any kind: codegen pipelines templating AST manipulation or compiler/plugin work.
• Experience with gRPC and protocol buffers or another strongly-typed API/IDL toolchain.
• Familiarity with the Buf toolchain ConnectRPC the Terraform Plugin Framework or Cobra.

Wondering if youre 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 arent a 100% skill or experience match. Here are a few qualities weve found compatible with our team. If some of this describes you wed love to talk.

• You love building tools that make other engineers faster.
• Youre curious about how a single source of truth can drive many downstream surfaces without falling out of sync.
• You care about developer experience: clear error messages sensible defaults and interfaces that stay consistent as they grow.

Why CoreWeave

At CoreWeave we work hard have fun and move fast! Were in an exciting stage of hyper-growth that you will not want to miss out on. Were not afraid of a little chaos and were 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 enables the development of innovative solutions to complex problems. As we get set for takeoff the organizations growth opportunities 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 $153000 to $204000. 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 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 weve 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. The benefits below reflect our US-based offerings; for roles in other locations benefits vary and are shared during the hiring process. These include:

• 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

California Applicants

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Equal Opportunity & Accommodations

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: .

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.