Jobs in the United States

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Added 3 mins ago
Senior AI Agent Test Developer, SDET
NVIDIA USA
CA
…are looking for a senior, technically strong test development engineer to drive quality, automation, and technical leadership in this rapidly evolving…
Added 3 mins ago
Senior Platform Service Software Engineer
NVIDIA USA
CA
We are now looking for a senior software engineer to join our Hardware Infrastructure team! Our team is responsible for delivering highly available platform services and performant web…
Added 4 mins ago
Senior Engineer - Voice and Call Center
Fusion HCR
Las Vegas, NV
Fusion HCR is seeking a Senior Engineer – Voice and Call Center to support enterprise contact center platforms and voice services. The role’s primary focus is Genesys Cloud CX, including…
Added 5 mins ago
SDE II - Embedded, Device Software Team
Amazon.com Services LLC
Hawthorne, CA
…devices is what makes that possible. As a Software Development Engineer II on the Ring team, you will define, build, and support the system design, architecture, and embedded software that…
Added 14 mins ago
Senior Pre-Sales Solution Engineer – Northeast
DTEX Systems
Remote, United States
As part of the DTEX Architecture and Solutions Engineering organization, the Senior Solutions Engineer (SE) is a technically sophisticated role combining deep security expertise with…
Added 14 mins ago
Senior Engineer - Voice and Call Center
Fusion HCR
Las Vegas, NV
Fusion HCR is seeking a Senior Engineer – Voice and Call Center to support enterprise contact center platforms and voice services. The role’s primary focus is Genesys Cloud CX, including…
Added 17 mins ago
Consulting Architect
Elastic
United States
Infrastructure Knowledge: Hands-on expertise with distributed systems, Linux, Kubernetes, and public cloud platforms such as AWS, Azure, or GCP.
Added 18 mins ago
Cyber Security Engineer
Academy Sports + Outdoors
Katy, TX
Foundational knowledge of Windows, Linux/Unix, and iSeries AS400 operating systems
Added 30 mins ago
Senior Cloud Security Engineer
Peraton
Remote, United States
Experience remediating vulnerabilities and misconfigurations on Windows and Linux systems, containers, and cloud-native services
Added 33 mins ago
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Technical Support Engineer (Dedrone)
TEKsystems
Mesa, AZ
- $27 to $29 USD / hour
Please apply directly if you are interested in this Tech Support Role, Located in Mesa, AZ. MUST HAVE LINUX experience!!Description Develop a complete understanding of the Airspace Security…
Added 33 mins ago
T
Linux Infrastructure Engineer
TEKsystems
Irving, TX
- $60 to $75 USD / hour
…expand the team at their Dallas location to add a Sr. Telecomm Systems Administrator to support the deployment/"Go-Live" of their hardware/applications (Interworking function) at an…
Added 38 mins ago
NCUVO Senior Scientific Software Engineer
University of Vermont
Burlington, VT
Added 55 mins ago
R
Cloud - Bare Metal Infrastructure Engineer
Render
Remote, United States
- $230,000 to $290,000 USD / year
- Strong Go or Python, and experience designing systems with reconciliation loops and idempotent, failure-tolerant actions
Added 1 hour ago
Senior CyberArk PAM Engineer
The Northern Trust Company
Tempe, AZ
Support integrations across Windows, Linux/Unix, applications, databases, network devices, cloud services, and other enterprise technologies.
Added 1 hour ago
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Linux Messaging Engineer
TEKsystems
Irving, TX
- $60 to $65 USD / hour
NO C2C. W2 ONLY. MUST WORK ONSITE 3 DAYS A WEEK IN IRVING, TX.TEKsystems is currently looking for a Linux Messaging Engineer with SMTP/mail routing, RHEL and heavy scripting experience with…
Added 1 hour ago
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Linux Messaging Engineer
TEKsystems
Charlotte, NC
- $60 to $65 USD / hour
NO C2C. W2 ONLY. MUST WORK ONSITE 3 DAYS A WEEK IN CHARLOTTE, NC.TEKsystems is currently looking for a Linux Messaging Engineer with SMTP/mail routing, RHEL and heavy scripting experience…
Added 1 hour ago
T
Infrastructure Engineer
TEKsystems
Foster City, CA
- $50 to $60 USD / hour
DescriptionOur client is seeking a Linux Infrastructure Operations Engineer to support critical infrastructure across on-premises, AWS, and Kubernetes (EKS) environments. This role is…
Added 1 hour ago
ST
Senior System Integration and Test Engineer
Silvus Technologies, Inc.
Irvine, CA
- $130,000 to $180,000 USD / year
Silvus is seeking a Senior System Integration and Test Engineer who will report to the Senior Engineering Director on the Irvine Engineering team. The successful individual in this role…
Added 1 hour ago
Information Security Engineer
TDC Brand
Napa, CA · Sherman Oaks, CA
The Information Security Engineer protects the organization’s systems and data by owning day-to-day vulnerability management while serving as a first-tier responder for security alerts and…
Added 1 hour ago
Fixed Income Algo Developer, Vice President
Citibank, N.A.
United States
…unique and challenging opportunity for an experienced software engineer to contribute to one of the industry's largest and most sophisticated algorithmic trading platforms. You will be…
Added 1 hour ago
Information Assurance / Security Engineer - MID-Level
Arcfield
Middleton, RI
Perform vulnerability remediation and system hardening on Red Hat Enterprise Linux (RHEL) systems.
Added 1 hour ago
NS
Development Test Engineer (Prism)
Northwood Space
Los Angeles, CA, CA
- $100,000 to $170,000 USD / year
Northwood is looking for an engineer to build the development systems that ensure our hardware performs reliably from early prototypes through operations. You’ll own development test…
Added 1 hour ago
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Software Reliability Engineer
Lab37
Pittsburgh, PA
- $158,000 to $218,000 USD / year
Design, develop and maintain tests and testing infrastructure to improve the reliability and performance of our robotic systems.
Added 1 hour ago
Applied Machine Learning Engineer
The Aerospace Corporation
Chantilly, VA · El Segundo, CA · Colorado Springs, CO
Working knowledge of Unix/Linux operating systems
Added 1 hour ago
Hardware Integration & Test Engineer II
Futurex
Bulverde, TX
Futurex is seeking a hands-on Hardware Integration & Test Engineer II to support testing, troubleshooting, firmware provisioning, and system integration of hardware security modules (HSMs)…

Crusoe

Staff Cloud Hypervisor Engineer, Compute

Sunnyvale, CA, United States

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Job details

Experience: 7+ Years of Experience: Proven track record in hypervisor internals, kernel development, or low-level systems programming.
Posting language: English
Posted: Nov 3, 2026

Original job description

Crusoe is on a mission to accelerate the abundance of energy and intelligence. As the only vertically integrated AI infrastructure company built from the ground up, we own and operate each layer of the stack - from electrons to tokens - to power the world's most ambitious AI workloads. When you join Crusoe, you join a team that is building the future, faster.

We're in the midst of the greatest industrial revolution of our time. The demand for AI compute is boundless, and power is a bottleneck. We're solving that - with an energy-first approach that makes AI infrastructure better for the world and faster for the people innovating with AI.

We're looking for problem-solving, opportunity-finding teammates with a sense of urgency, who believe in the scale of our ambition and thrive on a path not fully paved - people who want to grow their careers alongside a team of experts across energy, manufacturing, data center construction, and cloud services.

If you want to do the most meaningful work of your career, help our customers and partners advance their AI strategies, and be part of a high-performing team that believes in each other, come build with us at Crusoe.

About the Role:

At Crusoe, we are building the "engine room" of the AI revolution. We are seeking a Staff Cloud Hypervisor R&D Engineer to serve as the lead architect for our next-generation virtualization stack. In this role, you will move beyond standard virtualization to design a "Greenfield" hypervisor environment where GPUs, DPUs, and high-speed interconnects are first-class citizens. You will be responsible for eliminating the "virtualization tax," ensuring our cloud infrastructure delivers bare-metal performance for the world’s most demanding AI/ML workloads.

What You'll Be Working On:

Next-Gen Hypervisor Architecture: Lead the R&D and implementation of core hypervisor components (KVM, QEMU, or custom Rust-based solutions) specifically optimized for massive-scale GPU fleets.
AI Hardware Virtualization: Develop and refine advanced hardware pass-through and abstraction techniques (SR-IOV, VFIO, mdev) to ensure NVIDIA GPUs and BlueField DPUs operate with near-zero latency in a multi-tenant environment.
The "Holy Grail" Challenges: Solve high-stakes technical hurdles such as live migration for AI workloads with 80GB+ VRAM and optimizing PCIe peer-to-peer communication between virtualized accelerators.
Performance Research & Profiling: Conduct deep-dive bottleneck analysis across the entire stack - from CPU microarchitecture and MMU virtualization to guest OS scheduling - to minimize jitter and maximize throughput.
Open Source Leadership: Actively contribute to and maintain upstream open-source virtualization projects, positioning Crusoe as a thought leader in the Linux kernel and virtualization communities.
Security & Isolation: Architect robust security boundaries for AI-native cloud infrastructure, balancing high-performance hardware access with strict multi-tenant isolation and hardening.

What You'll Bring to the Team:

7+ Years of Experience: Proven track record in hypervisor internals, kernel development, or low-level systems programming.
Deep Virtualization Expertise: Expert-level knowledge of CPU virtualization (Intel VT-x, AMD-V) and memory virtualization (EPT/NPT, HugePages). You should be comfortable discussing the nuances of VMExit overhead.
Hardware-Software Integration: Experience working with specialized AI hardware, including GPUs, InfiniBand/RoCE NICs, and SmartNICs/DPUs.
Programming & Tooling: Mastery of C and C++ is required; proficiency in Rust for modern systems programming is highly preferred. Experience with QEMU, KVM, and Linux kernel debugging tools (perf, ftrace, eBPF).
I/O Mastery: Deep understanding of VirtIO, vhost-user, and hardware-accelerated I/O paths.
Technical Leadership: Experience leading complex, cross-functional projects that bridge the gap between hardware engineering and cloud control planes

Benefits:

Competitive compensation and equity packages
Restricted Stock Units
Paid time off, paid holidays & leave of absence programs
Comprehensive health, dental & vision insurance
Employer contributions to HSA account
Paid parental leave
Paid life insurance, short-term and long-term disability
Professional development & tuition reimbursement
Mental health & wellness support
Commuter benefits (parking & transit)
Cell phone stipend
401(k) Retirement plan with company match up to 4% of salary
Volunteer time off
Global travel insurance & emergency assistance
Daily meals allowance
Additional perks & programs specific to location

Compensation Range

Compensation will be paid in the range of up to $215,000 -$260,000 + Bonus. Restricted Stock Units are included in all offers. Compensation to be determined by the applicant's knowledge, education, and abilities, as well as internal equity and alignment with market data.

Crusoe is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, disability, genetic information, pregnancy, citizenship, marital status, sex/gender, sexual preference/ orientation, gender identity, age, veteran status, national origin, or any other status protected by law or regulation.

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More about this job

Skills

ML
Communication skills
Research
Scheduling
Leadership
Linux
C
C++
Rust
Debugging

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