Jobs in the United States

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Software Engineer 3/Sr/Principal
BHE
Des Moines, IA · Reno, NV · Las Vegas, NV
The software engineer provides advanced technical expertise and guidance in the architecture, design, programming, testing, documentation and implementation of complex computer applications…
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Geotechnical Engineer
Dynamic Engineering Consultants, PC
Allen, TX
The Geotechnical Engineer is responsible for performing subsurface investigations, engineering analyses and evaluations related to site development projects, forensic investigations and/or…
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Project Manager - Civil Engineer
Dynamic Engineering Consultants, PC
Philadelphia, PA
Professional Engineer (PE) registration required
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Advanced Commercialization Engineer IV (ACE Engineer IV)
Applied Materials
Kalispell, MT · Kalispell
The Advanced Commercialization Engineer IV for the New Product Commercial team (NPC) acts as a senior technical authority driving early commercialization of first‑in‑world semiconductor…
Added 1 min ago
PT Forward Model Quality Engineer
Ford Global
Dearborn, MI
…Ford's Powertrain Engineering organization as a hands-on quality engineer. You will work closely with Product Development, Manufacturing and Service teams to help make sure our V6 and V8…
Added 1 min ago
Design and Release Engineer-Cockpit and Trim
Ford Global
Dearborn, MI
Added 1 min ago
K
Infrastructure Engineer
Kastle
San Francisco, CA
- $180,000 to $275,000 USD / year
We're looking for a Senior Infrastructure Engineer with deep distributed systems expertise to design, build, and operate the infrastructure that powers Kastle's AI agents in production at…
Added 1 min ago
TM
Manufacturing Engineering Manager
thyssenkrupp Materials NA, Inc.
United States
- $115,000 to $150,000 USD / year
Professional Engineer (P.Eng.) designation or eligibility.
Added 1 min ago
Sr. Presales Networking Systems Engineer (Long Island, NY)
Hewlett Packard Enterprise
All, NY · Long Island City, NY
We are seeking a senior level Networking Systems Engineer to support K-12 and local governments throughout Long Island, New York. This is a remote, territory-based position. Candidates must…
Added 1 min ago
Signal Integrity Engineer III
Hewlett Packard Enterprise
Roseville, CA
Signal Integrity Engineer III – R&D Networking Platforms
Added 1 min ago
Power Engineer II
Hewlett Packard Enterprise
Sunnyvale, CA
HPE has an immediate need at its Sunnyvale, CA location for a Power Engineer. This position reports to the Manager of Power Systems Development, a subgroup of HPE’s Engineering Services…
Added 1 min ago
HPE Labs - Principal Research Engineer - HPE Quantum
Hewlett Packard Enterprise
Milpitas, CA
…with high-performance computing (HPC). As a Principal Software Engineer, you will help advance quantum computing from research toward practical applications. You will apply your software…
Added 1 min ago
Intelligent Automation Engineer
BrightSpring Health Services
LOUISVILLE, KY
We’re seeking an Intelligent Automation Engineer with strong hands-on expertise in UiPath, Microsoft Power Platform, Power BI, Copilot Studio, and Agentic AI. This role will design scalable…
Added 1 min ago
Data Engineer - Databricks
Steampunk
McLean, VA
We are looking for seasoned Data Engineer to work with our team and our clients to develop enterprise grade data platforms, services, and pipelines in Databricks. We are looking for more…
Added 2 mins ago
AD
Software Engineer II (Hybrid - 2x/week)
Avery Dennison
Little Rock, AR
- $75,000 to $111,000 USD / year
As a Software Engineer II on the storeLink engineering team, you will design, develop, and support key features for our cloud-native retail management platform. storeLink empowers grocery…
Added 2 mins ago
Cybersecurity Reliability Engineer 3 - Vulnerability Management
CHN Choice Hotels International Services
United States
…exciting new opportunity as our Level 3 Cybersecurity Reliability Engineer – IT (Vulnerability Management) in the Information Security / Security Operations. The Information Security /…
Added 2 mins ago
Senior Power System Engineer - Renewable Forecasting and Analysis
ERCOT
Taylor, TX
Works under the direction of a senior level engineer or supervisor/manager to complete departmental goals and assignments
Added 2 mins ago
Power System Engineer Sr - Resource Forecasting and Analysis
ERCOT
Taylor, TX
Works under the direction of a senior level engineer or supervisor/manager to complete departmental goals and assignments
Added 2 mins ago
Power System Engineer - Renewable Forecasting and Analysis
ERCOT
Taylor, TX
Works under the direction of a senior level engineer or supervisor/manager to complete departmental goals and assignments
Added 2 mins ago
Customer Experience Representative
Spirax-Sarco Ltd.
Wilmington, MA
Our shared Purpose is to create sustainable value for all our stakeholders as we engineer a more efficient, safer and sustainable world. Our technologies play an essential role in critical…
Added 2 mins ago
Infrastructure Software Engineer II (Remote - US)
BNSF Railway
United States
Added 3 mins ago
Lead Network Engineer
The Nebraska Medical Center
Omaha, NE
Are you an experienced Network Engineer ready to take the lead in designing and advancing complex enterprise network solutions? Nebraska Medicine is looking for a Lead Network Engineer to…
Added 3 mins ago
Systems Engineer, Test Automation
Peraton
Annapolis Junction, MD
This position is listed as a System Engineer; however, this role supports Test Automation.
Added 3 mins ago
Cloud Systems Administrator
Peraton
Annapolis Junction, MD
Added 3 mins ago
Field Service Engineer II (Bulk Elemental Analysis)
Thermo Fisher Scientific
Remote, United States
Join Thermo Fisher Scientific as a Field Service Engineer supporting our Bulk Elemental Analysis business. In this role, you’ll install, maintain, troubleshoot, and repair advanced…

SpaceXSI

Sr. Software Engineer, Linux Kernel

Palo Alto, CA, United States
Seattle, WA, United States

$200,000 - $375,000 USD

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Job details

Pay: $200,000 - $375,000 USD
Experience: 5+ years of hands-on systems programming experience in C or C++
Posting language: English
Posted: Nov 4, 2026

Original job description

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars.

SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next.

SR. SOFTWARE ENGINEER, LINUX KERNEL

At SpaceXSI, we design, build, and operate the largest AI supercomputers in the world, from the ground up. As a member of the Platform Core team, you will be responsible for the lowest layers of the software stack on the devices setting the pace for how fast we can push the frontier of AI. Our team’s software interfaces directly with the core hardware of the supercomputer and its network fabric. Our mission is to expose the full capability of that hardware - limited only by physics - to the rest of the stack, all while retaining the smallest, most robust footprint possible.

RESPONSIBILITIES:

Build and maintain the lean, high-reliability Linux-based operating system that underpins our supercomputer network fabric
Write (or rewrite) high-performance device drivers to extract the maximum physical capability from our network and compute hardware
Manage deployment, operation, and debugging of our platform in production, including: rigorous resolution and root-causing of anomalies to ensure the system is constantly improving in reliability and developing and constantly improving our tools for observability and configuration management
Collaborate with our hardware teams and external partners to design the next generation of supercomputer hardware – and then bring up our OS and software stack on it

BASIC QUALIFICATIONS:

5+ years of hands-on systems programming experience in C or C++

PREFERRED SKILLS AND EXPERIENCE:

Strong operating systems fundamentals (scheduling, memory management, I/O) - you must be able to articulate in extreme detail how a computer works, from the hardware all the way up to high-level applications
Understanding of computer networking, both in the host (OS stack) as well as common network devices like switches and routers
Excellent written and verbal communication skills
Deep knowledge of the Linux kernel and its networking stack - transferable experience with another production-grade kernel is okay, too!
Proficiency with debugging tools spanning kernel, network, and userspace (e.g., ftrace, perf, Wireshark/tcpdump, eBPF, gdb, and more)
Experience bringing up new hardware from scratch - you have flashed bare-metal software on a microcontroller with JTAG, or bootstrapped a Linux kernel and rootfs on new hardware
Demonstrated track record of developing and optimizing device/peripheral drivers - ideally for high-speed interfaces, or with advanced considerations like DMA and cache coherency
Understanding of major peripheral hardware interface standards (Ethernet, PCIe, I2C, SPI, etc.) - you can critically review a schematic, and debug these interfaces if needed
Experience with product security, OS/system hardening, and secure boot schemes

COMPENSATION AND BENEFITS:

$200,000 - $375,000 USD

Base salary is just one part of our total rewards package at SpaceXSI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks. SpaceXSI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.

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