---
title: 'Staff Applied ML Engineer at CoreWeave'
canonical: 'https://feeny.ai/job/staff-applied-ml-engineer-coreweave-sunnyvale-7f6p7men41sx'
type: 'job'
last_seen: '2026-09-09'
---

# Staff Applied ML Engineer at CoreWeave

- **Company:** CoreWeave
- **Location:** Sunnyvale, CA / Bellevue, WA
- **Posted:** 2026-03-25
- **Last confirmed live:** 2026-09-09
- **Apply:** https://coreweave.com/careers/job?4666682006&board=coreweave&gh_jid=4666682006

## Job description

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](http://www.coreweave.com/).

## Our Team

The CRAFT (Capabilities, Routing, Adaptation & Fine-Tuning) team at CoreWeave is building tools to help agents learn from experience. This is a critical step to make agents reliable enough to perform long tasks autonomously, in the same way human employees are. We’re systematically identifying and solving the major bottlenecks between today’s tech and those future self-improving agents. So far, we’ve:

- Released ART, the easiest library for getting started with RL.
- Developed RULER, a general-purpose reward function that works across many diverse tasks.
- Built Serverless RL, an elegant API that gives RL practitioners full control over their data, environment and reward function while letting them outsource the headaches of managing GPU infrastructure.

These releases have a theme: we’re systematically tackling each major roadblock to successfully training self-improving agents. Several serious challenges remain. Building simulated environments often requires substantial human labor, and existing training methods are not data efficient enough. We're laser-focused on solving these problems and making self-improvement a reality for agent developers. In startup terms, this is a classic hard-tech bet. Our roadmap involves substantial technical risk; there are still major technical problems we’re facing without a proven solution. However, there is very little market risk. We’ve worked closely with the teams building agents at many of the top AI-native startups as well as large enterprises. If we can build this, everyone will want it. A self improving agent that learns from experience the way a human employee would could quickly capture a large fraction of the total inference market, which is worth tens of billions of dollars today and will be worth hundreds of billions in a few years.

## About the Role

You have trained LLMs to be SOTA on specific tasks. You have opinions on whether sequence-level or token-level importance ratios are more effective. You probably shared the ScaleRL paper in your group chats, and kicked off a few ablations after you read it. You will be expected to generate and investigate research ideas towards solving the remaining obstacles to continuous learning in production. You will work with the broader CRAFT team to validate these research directions across real customer tasks. We are very GPU rich and are ready to direct an enormous amount of compute at this effort. Beyond your role’s specific qualifications, we’re looking for strong engineers with great taste. The most important qualification by far is that you learn fast and can ship. This role will inevitably involve a lot of learning on the job; we’re building this airplane as we fly it. Engineers on our team touch everything from CUDA kernels to high-performance LLM tracing dashboards, and you will have an opportunity to touch many parts of this stack. Although we operate as part of a larger company, the CRAFT team is small, has a large degree of autonomy and drives our own roadmap and priorities. This is an excellent role for someone looking to find their own company in the future.

Required Qualifications

- 8+ years of experience in machine learning or applied research, or a PhD with 4+ years of relevant industry experience
- Demonstrated success developing LLM training methods or systems that produce meaningful improvements on real-world tasks
- Deep expertise in LLM post-training, including supervised fine-tuning, reinforcement learning, on-policy distillation, reward modeling, and policy optimization
- Strong research judgment, including the ability to identify high-impact problems, design rigorous experiments, and make decisions from ambiguous results
- Experience taking research ideas from initial hypothesis through implementation, evaluation, and production deployment
- Proven ability to set technical direction, lead complex cross functional initiatives, and mentor other engineers

## Preferred Qualifications

- Publications, open source contributions, or other demonstrated research impact in reinforcement learning, LLM post-training, or agent learning
- Deep experience with distributed training, GPU optimization, and large-scale model training systems

## Our Stack

We strive to use the best tool for the job when building and deploying our production services. Sometimes that means writing our own custom code, and often it means leaning on the work of others. As part of building Serverless RL, we depend on the following libraries and frameworks (among many others):

- Kubernetes
- Megatron
- Temporal
- Postgres
- FastAPI

Why CoreWeave?

We work hard, have fun, and move fast! We’re in an exciting stage of hypergrowth 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 takeoff, 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 $185,000 to $275,000. 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](https://drive.google.com/file/d/1gPBRBhUNAMBmj7Yn4_M-hCugm7ZJD4hr/view?usp=sharing)

## 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 https://www.eeoc.gov/laws/guidance/fact-sheet-disability-discrimination, 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: careers@coreweave.com.

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.

## About CoreWeave

## Company Overview
- **One-liner**: CoreWeave is a specialized cloud provider delivering GPU-accelerated infrastructure for AI workloads, positioning itself as the AI Hyperscaler™.
- **Entity Type**: Private (growth stage, multiple funding rounds)
- **Headquarters**: Livingston, New Jersey, USA
- **Founded**: 2017 [builtin.com](https://builtin.com/company/coreweave)
- **Founders**: Mike Intrator (CEO, Co-founder), Brian Venturo (CSO, Co-founder), Brannin McBee (CDO, Co-founder), Peter Salanki (CTO, Co-founder) [coreweave.com/about-us](https://www.coreweave.com/about-us)

## Core Business
- **Primary industry**: Cloud computing, AI infrastructure
- **Target customers**: B2B, Enterprise AI labs, AI-native companies, and large-scale accelerated computing workloads
- **Mission or purpose statement**: Power the creation and delivery of the intelligence that drives innovation (inferred from "power the creation and delivery of cutting-edge intelligence" [coreweave.com/about-us](https://www.coreweave.com/about-us))

## Products & Services
- **CoreWeave Cloud Platform**: IaaS/PaaS offering on-demand GPU compute, high-performance storage, and networking optimized for training and inferencing AI models. The platform is purpose-built for accelerated computing, providing a cloud-native alternative to traditional hyperscalers.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed
- **Key Metric**: Over 1,450 total employees (as of 2025) [builtin.com](https://builtin.com/company/coreweave)
- **Notable Investors/Partners**: Not specified in provided sources
- **Growth Signals**: Named one of TIME100 Most Influential Companies and featured on Forbes Cloud 100 ranking in 2024 [builtin.com](https://builtin.com/company/coreweave); expanding data center footprint across the United States and Europe with offices in Livingston, Bellevue, New York, London, Sunnyvale, and Philadelphia [coreweave.com](https://www.coreweave.com/) [builtin.com](https://builtin.com/company/coreweave)

## Competitive Advantages
- **Purpose-built for AI**: Deep expertise in GPU orchestration and a cloud platform architected specifically for AI workloads, offering higher performance and efficiency than general-purpose clouds.
- **Scalable infrastructure**: Large-scale, highly efficient data center operations with advanced automation and world-class security protocols [coreweave.com/coreweave-company-culture](https://coreweave.com/coreweave-company-culture).
- **Speed and agility**: Ability to rapidly deploy and scale GPU clusters, enabling customers to accelerate their AI development cycles.

## Strategic Focus
- **Global expansion**: Continue growing data center capacity and presence across the US and Europe to meet surging demand for AI compute.
- **Platform enhancement**: Invest in software stack, automation, and customer experience to maintain leadership as the AI Hyperscaler™.
- **Talent attraction**: Build a world-class engineering and operations team to support hypergrowth and innovation.

## Why Work Here
- **Culture & values**: CoreWeave promotes a culture of empowerment, curiosity, ownership, collaboration, and customer obsession. The company values continuous learning, transparency, and mutual trust [coreweave.com/about-us](https://www.coreweave.com/about-us).
- **Work model**: Hybrid workspace with flexible on-site expectations; office locations in Livingston, Bellevue, New York, London, Sunnyvale, and Philadelphia [builtin.com](https://builtin.com/company/coreweave).
- **Benefits**:
  - 401(k) with generous match (up to 4%)
  - Flexible PTO
  - Employee Stock Purchase Plan (ESPP) with 15% discount
  - Comprehensive healthcare (medical, dental, vision)
  - Mental wellness support (Spring Health, Calm app)
  - Family benefits: Kinside childcare concierge, Carrot fertility and family support, generous parental leave
  - Life and disability insurance
  - Flexible spending accounts (medical, dependent care, commuter)
  - Free daily meals [builtin.com](https://builtin.com/company/coreweave)
- **Engineering culture**: Engineers are given ownership of their work, collaborate with top talent, and directly contribute to building the next-generation AI hyperscaler stack. The company emphasizes execution, bold ideas, and staying at the forefront of technology [coreweave.com/coreweave-company-culture](https://coreweave.com/coreweave-company-culture).
- **Growth & learning**: Provides continuing education stipend, online course subscriptions, and job training programs [builtin.com](https://builtin.com/company/coreweave).

## Sources
1. [coreweave.com](https://www.coreweave.com/)
2. [coreweave.com/about-us](https://www.coreweave.com/about-us)
3. [coreweave.com/coreweave-company-culture](https://coreweave.com/coreweave-company-culture)
4. [builtin.com/company/coreweave](https://builtin.com/company/coreweave)

## Other roles at CoreWeave

- [Compensation Lead](https://feeny.ai/job/compensation-lead-coreweave-livingston-pd5ns1vkw7n2) — Livingston, NJ
- [Senior Corporate Accountant](https://feeny.ai/job/senior-corporate-accountant-coreweave-dallas-epc8hnwmtdsy) — Dallas, TX
- [Senior Specialist Field Engineer - SaaS](https://feeny.ai/job/senior-specialist-field-engineer-saas-coreweave-sunnyvale-j54w5t7zvfg8) — Sunnyvale, CA / San Francisco, CA
- [Executive Assistant](https://feeny.ai/job/executive-assistant-coreweave-bellevue-ng4msekdym47) — Bellevue, WA
- [Data Center Security Engineer - WIDS](https://feeny.ai/job/data-center-security-engineer-wids-coreweave-livingston-jdxtm21canv8) — Livingston, NJ
- [Global Security Operations Center (GSOC) Operator](https://feeny.ai/job/global-security-operations-center-gsoc-operator-coreweave-livingston-z2106gt623me) — Livingston, NJ
- [Command Center Technician](https://feeny.ai/job/command-center-technician-coreweave-kenilworth-6qfns47ett71) — Kenilworth, NJ
- [Data Center Technician - Marble, NC](https://feeny.ai/job/data-center-technician-marble-nc-coreweave-marble-xvyqn50nreg1) — Marble, NC
- [Vendor Management Coordinator](https://feeny.ai/job/vendor-management-coordinator-coreweave-livingston-51ph8564bas0) — Livingston, NJ / New York, NY / Sunnyvale, CA / San Francisco, CA / Bellevue, WA
- [GSOC Operator (WIDS)](https://feeny.ai/job/gsoc-operator-wids-coreweave-livingston-agcetgcfh6pv) — Livingston, NJ