Jobs in the United States

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Added 3 mins ago
Civil Engineer-In-Training (EIT) - Industrial
AKS Engineering & Forestry, LLC
Kirkland, WA
AKS is seeking a motivated Civil Engineer-in-Training (EIT) to join our team and support the planning, design, and delivery of high-tech manufacturing developments and mission-critical data…
Added 4 mins ago
Principal ASIC Engineer
Echodyne Corp
Kirkland, WA
…combines the patented technology of metamaterials with powerful software to create a radar sensor with unprecedented performance at commercial price points. Echodyne offers its radars to…
Added 6 mins ago
Mechanical Engineer - PM
Old Dominion University
Norfolk, VA
The mechanical engineer, a member of the Facilities Management Design & Construction Team, provides designs, analyses, project management and inspections and condition assessments. Duties…
Added 8 mins ago
SO
IT System Administration - Senior/Specialist
State of Washington
Olympia, WA
- $8,522 to $11,460 USD / month
This DevOps Engineer reports to the DevOps Architect and provides technical guidance to other DevOps engineers, with a focus on Linux systems and automation. The position works closely with…
Added 10 mins ago
Software Engineer II - Argo Applications
Frost Bank
San Antonio, TX
As a Software Engineer II -Argo Applications at Frost, you are our code guru, not only configuring the systems but understanding the why’s behind them. Our software engineers believe in…
Added 10 mins ago
Product Support Engineer
Samsung Electronics America, Inc.
Plano, TX
…electronics, home appliances, enterprise solutions and networks systems. Across each of these areas, our work drives innovation, economic growth and workforce opportunity in the United…
Added 10 mins ago
Product Support Senior Engineer
Samsung Electronics America, Inc.
Plano, TX
…electronics, home appliances, enterprise solutions and networks systems. Across each of these areas, our work drives innovation, economic growth and workforce opportunity in the United…
Added 11 mins ago
MD
Project Administrator, Staff
M.C. Dean, Inc
Frederick, MD
- $26.77 to $30.11 USD / hour
…enterprises. The company’s capabilities include electrical power systems, electronic security, telecommunications, life safety, automation and controls, audio visual, and IT systems. M.C.…
Added 11 mins ago
Senior Software Engineer, Ads Measurement
Roblox
San Mateo, CA
As a Senior Software Engineer on our Ads Measurement team, you will architect and build foundational ads systems that are capable of reliably serving Roblox’s massive scale. You will drive…
Added 12 mins ago
AL
Senior Data Engineer
Absentia Labs
San Francisco, CA · Boston, MA · New York City, NY · Seattle, WA · San Jose, CA · Austin, TX
- $125,000 to $160,000 USD / year
You are a data engineer who thinks in systems and interfaces, not just pipelines. You are comfortable owning poorly defined problems and converging on robust solutions through thoughtful…
Added 12 mins ago
Sr. Software Engineer, Linux Kernel
SpaceXSI
Seattle, WA
…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…
Added 12 mins ago
RTL Engineer – Physical AI Solutions
Altera
San Jose, CA
As an RTL Engineer, you will be responsible for designing, implementing, and verifying high-performance digital logic that powers AI and accelerated computing solutions. You will…
Added 14 mins ago
Senior Civil Engineer
Arcadis
Highlands Ranch · Phoenix · Salt Lake City
Arcadis is seeking a Senior Civil Engineer to join our team in one of the following areas: Denver, Colorado; Phoenix, Arizona; or Salt Lake City, Utah. This position will provide senior…
Added 15 mins ago
Mechanical Engineer, Insource Manufacturing (Starlink)
SpaceX
Bastrop, TX
The Insource Manufacturing team is responsible for designing, building, and qualifying custom equipment and automation systems to enable high-volume production of Starlink products. As a…
Added 17 mins ago
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Structural Engineer
GPAC
Phoenix, AZ
- $90,000 to $150,000 USD / year
We're hiring a Structural Engineer to join a growing structural team in the Phoenix area. You'll design structural systems for buildings and related projects from concept through…
Added 18 mins ago
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Structural Engineer
GPAC
Riverside, CA
- $90,000 to $150,000 USD / year
We're hiring a Structural Engineer to join a growing structural team in the Riverside area. You'll design structural systems for buildings and related projects from concept through…
Added 18 mins ago
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Structural Engineer
GPAC
Dallas, TX
- $90,000 to $150,000 USD / year
We're hiring a Structural Engineer to join a growing structural team in the Dallas area. You'll design structural systems for buildings and related projects from concept through…
Added 18 mins ago
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Structural Engineer
GPAC
Philadelphia, PA
- $90,000 to $150,000 USD / year
We're hiring a Structural Engineer to join a growing structural team in the Philadelphia area. You'll design structural systems for buildings and related projects from concept through…
Added 18 mins ago
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Structural Engineer
GPAC
Saint Louis, MO
- $90,000 to $150,000 USD / year
We're hiring a Structural Engineer to join a growing structural team in the St. Louis area. You'll design structural systems for buildings and related projects from concept through…
Added 18 mins ago
G
Structural Engineer
GPAC
Minneapolis, MN
- $90,000 to $150,000 USD / year
We're hiring a Structural Engineer to join a growing structural team in the Minneapolis area. You'll design structural systems for buildings and related projects from concept through…
Added 18 mins ago
G
Structural Engineer
GPAC
San Francisco, CA
- $90,000 to $150,000 USD / year
We're hiring a Structural Engineer to join a growing structural team in the San Francisco area. You'll design structural systems for buildings and related projects from concept through…
Added 18 mins ago
G
Structural Engineer
GPAC
Baltimore, MD
- $90,000 to $150,000 USD / year
We're hiring a Structural Engineer to join a growing structural team in the Baltimore area. You'll design structural systems for buildings and related projects from concept through…
Added 18 mins ago
G
Structural Engineer
GPAC
Detroit, MI
- $90,000 to $150,000 USD / year
We're hiring a Structural Engineer to join a growing structural team in the Detroit area. You'll design structural systems for buildings and related projects from concept through…
Added 18 mins ago
G
Structural Engineer
GPAC
Boston, MA
- $90,000 to $150,000 USD / year
We're hiring a Structural Engineer to join a growing structural team in the Boston area. You'll design structural systems for buildings and related projects from concept through…
Added 19 mins ago
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Staff Security Engineer
fal
San Francisco, CA
- $180,000 to $250,000 USD / year
- Harden cloud, Kubernetes, CI/CD, and the software supply chain

SpaceXSI

Sr. Software Engineer, Linux Kernel

Seattle, WA, United States

$180,000 - $330,000 USD

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Job details

Pay: $180,000 - $330,000 USD
Experience: 5+ years of hands-on systems programming experience in C or C++
Posting language: English
Posted: Nov 5, 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:

$180,000 - $330,000 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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More about this job

Skills

Linux
Debugging
BASIC
C
C++
Scheduling
Communication skills
Wireshark
Tcpdump

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