Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Software Engineer - API Platform & Client Tooling

$153k - $204k
Full-time

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

What You'll 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 CoreWeave's 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 team's 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, you'll design and build the code-generation pipeline that turns a single proto contract into Go SDKs, CWIC commands, and Terraform resources. You'll 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 CoreWeave's internal API consultancy, you'll 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 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. Here are a few qualities we've found compatible with our team. If some of this describes you, we'd love to talk.

  • You love building tools that make other engineers faster.
  • You're 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! 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 enables the development of innovative solutions to complex problems. As we get set for takeoff, the organization's 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 $153,000 to $204,000. 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. The benefits below reflect our US-based offerings for full-time employees; 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

California Consumer Privacy Act

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: View email address on aiapply.co.

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.

Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Senior Software Engineer - API Platform & Client Tooling in Livingston, NJ vacancy
  • $86.7k - $170.9k

     ...Integration Engineer II, API Developer with Integration Tool Experience - AI &...  ...transforming technology platforms, driving innovation...  ...significant impact on our clients' success. You’ll...  ...solutions in software, data, AI, network...  ...employees to senior leaders, we believe... 
    Software
    Local area
    Flexible hours

    Deloitte

    Morristown, NJ
    8 hours ago
  • $32.5 - $36 per hour

     ...preparation, tax advice, calculations, and software/product support. Your ability to...  ...will play a key role in growing TurboTax’s client base within the local community, attracting...  ...such as government websites, professional tools, and team expertise to deliver accurate tax... 
    Senior
    Software
    Local area

    Intuit

    Short Hills, NJ
    2 days ago
  • CoreWeave is building the API Platform & Client Tooling team to create a go-based code-generation pipeline that turns a proto contract into Go SDKs, CWIC commands, and Terraform resources. This Senior Engineer will own end-to-end components from proto to generated artifacts... 
    Senior
    Contract work

    CoreWeave

    Livingston, NJ
    1 day ago
  • Barclays is seeking a Senior Software Engineer in Whippany, NJ to design, develop, and improve software that enables real-time integration of reference...  .... The role requires experience with MongoDB, SQL, RESTful APIs, and cloud deployments on AWS. You will build modular... 
    Senior
    Software

    Barclays

    Whippany, NJ
    1 day ago
  • $124k - $280k

     ...our people in software and product innovation...  ...needs of clients. These individuals...  ...in software engineering at PwC will focus...  ...machines, platforms, clouds, and people...  ...cloud-native API ecosystems and...  ....The Role:As a Senior Manager in our...  ...standards for AI tool adoption, measuring... 
    Senior
    Software
    Full time
    H1b
    Shift work

    PwC

    Florham Park, NJ
    1 day ago
  • $153k - $204k

     ...pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators...  ...at .What You'll Do:The Systems Engineering team owns the host software stack that turns a freshly provisioned...  ...the stack.About the role:As a Senior Software Engineer on the Systems... 
    Senior
    Software
    Permanent employment
    Full time
    Temporary work
    Casual work
    Live in
    Work at office
    Flexible hours

    CoreWeave

    Livingston, NJ
    1 day ago
  • $182k - $242k

     ...pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables...  ...at .About the Role:As a Software and AI Engineer, IT Systems, you’ll...  ...ChatGPT agentflow, OpenAI API, Gemini agent flow, or Glean...  ...Best-in-Class Client ExperiencesAchieve More TogetherWe... 
    Senior
    Software
    Permanent employment
    Full time
    Temporary work
    Casual work
    Work at office
    Flexible hours

    CoreWeave

    Livingston, NJ
    2 days ago
  • CoreWeave is hiring Software Engineers to design and scale Weave, our observability and evaluation platform for AI agents and GenAI applications. In a small but growing team,...  ...with AI builders will shape the next generation of AI tooling. #J-18808-Ljbffr Weights & Biases
    Senior
    Software

    Weights & Biases

    Livingston, NJ
    1 day ago
  •  ...Biases, now part of CoreWeave, is seeking a Software Engineer to scale our metrics and storage systems...  ...with multiple teams to evolve the platform. You will mentor engineers, set technical direction, and design resilient APIs while collaborating with product and revenue... 
    Senior
    Software

    Weights & Biases

    Livingston, NJ
    1 day ago
  • $165k - $220k

     ...powerful end-to-end platform to develop,...  ...the best-in-class tools AI practitioners...  ...intersection of software, hardware, and AI...  ...Reporting to the Senior Engineering Manager for ML Workflows...  ...and GraphQL APIs to the Python SDK...  ...strategies, SDKs and client libraries.... 
    Senior
    Software
    Permanent employment
    Full time
    Temporary work
    Casual work
    Work at office
    Flexible hours

    Weights & Biases

    Livingston, NJ
    3 days ago
  • $153k - $204k

     ...CoreWeave delivers a platform of technology, tools, and teams that...  ...platform that lets our engineers ship software quickly, reliably,...  ...are seeking a Senior Software Engineer to...  ...backend services and APIs at the core of our...  ...Contribute to frontend web clients where it... 
    Senior
    Software
    Permanent employment
    Full time
    Temporary work
    Casual work
    Work at office
    Flexible hours

    CoreWeave

    Livingston, NJ
    1 day ago
  • $105.4k - $207.8k

     ...Summary Cyber Senior Consultant -...  ...with client stakeholders and...  ...processes across the software development lifecycle...  ...of security tooling, automation,...  ...code, container, API, and...  ...Information Technology, Engineering, Information Systems...  ..., Google Cloud Platform, Kubernetes, or... 
    Senior
    Software
    Local area
    Worldwide
    Visa sponsorship

    Deloitte

    Morristown, NJ
    4 days ago
  • $189.59k

     ...Senior Software EngineerBarclays Services Corp. seeks...  ...Senior Software Engineer in Whippany, NJ (multiple...  ...(counterparty, client, account, and book...  ...and RESTful APIs to support trade lifecycle...  ...business, platform, and technology capabilities...  ..., frameworks, and tools. Ensuring that... 
    Senior
    Software
    Hourly pay

    hackajob

    Whippany, NJ
    3 days ago
  •  ...) ContractResponsibilities:Senior Full Stack Engineers lead the design, development...  ...of mission critical software systems. They shape engineering...  ...proficiency (EC2, Lambda, API Gateway, ECS/EKS, S3, RDS,...  ...engineering mentorshipPreferred Tools & TechnologiesHigh scale... 
    Senior
    Software
    Work at office
    3 days per week

    Experis

    Whippany, NJ
    1 day ago
  • $157k - $210k

     ...CoreWeave delivers a platform of technology, tools, and teams that...  ...our IT, Systems Engineering, and Enterprise...  ...activities with software vendors, systems...  ...with REST APIs, integration patterns...  ...a roadmap to senior leadership.Preferred...  ...Best-in-Class Client... 
    Software
    Permanent employment
    Full time
    Temporary work
    Casual work
    Work at office
    Flexible hours

    CoreWeave

    Livingston, NJ
    1 day ago
  • $137k - $224.4k

     ...business outcomes.The AI Manager - Engineering & Platform Delivery is responsible for...  ..., copilots, workflows, APIs, and reusable enterprise AI...  ...automation, and operational tooling. Oversee emerging MLOps capabilities...  ...degree in Computer Science, Software Engineering, Information... 
    Senior
    Software
    Permanent employment
    Local area
    Remote work
    Work from home
    Flexible hours
    3 days per week

    Public Service Enterprise Group

    Newark, NJ
    1 day ago
  • $155.6k - $306.8k

     ...At Deloitte, Senior Forward Deployed Engineers (SFDE) don’t just...  ...solutions, they help clients turn AI ambition...  ...working software, engaging confidently...  ...and end users on platform capabilities and...  ...patterns, tool-use approaches,...  ...enterprise systems via APIs, microservices,... 
    Senior
    Software
    Local area
    Visa sponsorship

    Deloitte

    Morristown, NJ
    8 hours ago
  • $77k - $202k

     ...Machine Learning Developer- Senior Associate, you will...  ...data, algorithms, and software engineering to build and deploy AI...  ...building meaningful client connections and...  ...use a broad range of tools and methodologies to generate...  ...scalable software and platform systems using advanced... 
    Senior
    Software
    Full time
    H1b

    PwC

    Florham Park, NJ
    2 days ago
  • $171.6k - $338.3k

     ...team helps our clients navigate the ever...  ...’s Cyber Engineering is a new team that...  ...of methods and tools; validating solutions...  ...in full stack software development...  ...consuming REST APIs and microservices...  ...Frontier GenAI Platforms: Anthropic,...  ...level employees to senior leaders, we... 
    Senior
    Software
    Local area

    Deloitte

    Morristown, NJ
    1 day ago
  • $182k - $242k

     ...CoreWeave delivers a platform of technology, tools, and teams that...  ...Platform & Infrastructure Engineering team sits at the...  ...About the role:As a Senior Software Engineer, you will take...  ..., and backend APIs.Multi-Region Architecture...  ...EmployeesDeliver Best-in-Class Client ExperiencesAchieve... 
    Senior
    Software
    Permanent employment
    Full time
    Temporary work
    Casual work
    Work at office
    Flexible hours

    CoreWeave

    Livingston, NJ
    4 days ago
  • $139k - $204k

     ...powerful end-to-end platform to develop,...  ...the best-in-class tools AI practitioners...  ...intersection of software, hardware, and AI...  ...role: As a Senior Software Engineer, you will work in...  ...align on component APIs, UX consistency,...  ...delivering best-in-class client experiences ,... 
    Senior
    Software
    Permanent employment
    Full time
    Temporary work
    Casual work
    Work at office
    Flexible hours

    Weights & Biases

    Livingston, NJ
    3 days ago
  • $155.6k - $306.8k

     ...Forward Deployed Engineers (FDE) don’t...  ...solutions, they help clients turn AI...  ...you’ll do As a Senior ServiceNow FDE,...  ...building working software, engaging confidently...  ...end users on platform capabilities...  ...engineering patterns, tool-use approaches,...  ...Now Platform APIs. ServiceNow SDK... 
    Senior
    Software
    Local area
    Shift work

    Deloitte

    Morristown, NJ
    3 days ago
  • $118.28k - $212.87k

     ...facility, and leading market tools, we help our people...  ...is currently seeking a Senior Associate in Technology...  ..., Flow, Apex, and APIs, and develop and test Prompt...  ...; Salesforce Certified Platform Developer I and...  ...as required to support client engagements, team collaboration... 
    Senior
    H1b
    Local area

    KPMG

    Short Hills, NJ
    2 days ago
  •  ...Senior API Java DeveloperAs a Sr Software Developer you will be involved in design, developing, testing and deploying...  ...and support sales and service engineers.Basic Qualifications for Consideration...  ...with one or more tools in automated unit testing such as Junit... 
    Software

    Keylent Inc

    Berkeley Heights, NJ
    1 day ago
  • $182k - $242k

     ...powerful end-to-end platform to develop,...  ...best-in-class tools AI practitioners...  ...of software, hardware, and...  ...at scale. The engineering team is responsible...  ...role: As a Senior Full Stack Engineer...  ...infrastructure and API design to the React...  ...Best-in-Class Client Experiences... 
    Senior
    Software
    Permanent employment
    Full time
    Temporary work
    Casual work
    Work at office
    Flexible hours

    Weights & Biases

    Livingston, NJ
    3 days ago
  • $130k - $150k

     ...Senior Full-Stack DeveloperPerr&Knight is...  ...objectives on our PK1Cloud Software team:Collaborating...  ...engineers in building reliable...  ...assisted development tools to accelerate delivery...  ...microservices and APIs using C#/.NET and...  ...extraordinary value to our clients by offering... 
    Senior
    Software
    Work at office

    Perr&Knight

    Newark, NJ
    2 days ago
  •  ...Job Purpose The Senior Software Engineer develops information systems by designing...  ..., stakeholders, and clients to gather requirements and ensure...  ...AWS, building and consuming APIs. Applicants must have experience...  ...manual tasks; operate tools and other office equipment such... 
    Senior
    Software
    Work experience placement
    Work at office
    Local area

    Med-Metrix

    Parsippany, NJ
    1 day ago
  • $134.5k - $265.1k

     ...team helps our clients navigate the ever...  ...Deployed Engineer (FDE) Sr Consultant...  ...actionable product or platform improvements,...  ...REST APIs, microservices,...  ...development lifecycle tools (e.g., Git,...  ...experience working with senior client...  ...practices and secure software development... 
    Senior
    Software
    Local area
    Visa sponsorship

    Deloitte

    Morristown, NJ
    4 days ago
  • $77k - $202k

     ...business applications, helping clients optimise operational...  ...analyse client needs, implement software solutions, and provide training...  ...of others.Use a broad range of tools, methodologies and techniques...  ...Quote-to-Cash solutions. As a Senior Associate, you will analyze complex... 
    Senior
    Software
    Full time
    H1b

    PwC

    Florham Park, NJ
    8 hours ago
  •  ...Grade: 29S   Context of Job:    IT Governance & Client Success is often the first point of contact for...  ...productivity, computing applications and tools, student computing, and assist with hardware and software issues.   The Systems Support Consultant III in... 
    Software
    Full time

    University of Delaware

    Newark, NJ
    more than 2 months ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Software Engineer - API Platform & Client Tooling. Be the first to apply!