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Added just now
Senior Product Quality Engineer
Anduril Industries
Ashville, OH
As a Senior Product Quality Engineer you will support our Barracuda product teams at our Arsenal-1 facility. You will work inside & outside the organization to define, develop, and execute…
Added just now
Senior Product Quality Engineer
Anduril Industries
Ashville, OH
As a Senior Product Quality Engineer you will support our Barracuda product teams at our Arsenal-1 facility. You will work inside & outside the organization to define, develop, and execute…
Added 4 mins ago
New College Grad - Product Yield Enhancement Engineer
Micron Technology
Boise
JR116872 New College Grad - Product Yield Enhancement Engineer
Added 4 mins ago
Senior Engineer, Bulk Gas
Micron Technology
Boise
As Senior Engineer, Bulk Gas, you will be essential to our growth, guiding technical efforts for extensive gas production, storage, supply, and distribution systems that support significant…
Added 4 mins ago
Senior Engineer, Bulk Gas
Micron Technology
Boise
As a Senior Bulk Gas Build Engineer, you will provide technical leadership for large-scale gas production, storage, supply, and distribution systems supporting major semiconductor…
Added 4 mins ago
Senior Engineer, Specialty Gas Systems
Micron Technology
Boise
JR115583 Senior Engineer, Specialty Gas Systems
Added 7 mins ago
Senior Software Engineer, Platform Engineering
Columbia Sportswear Comp
Portland, OR
As a Senior Software Engineer on the Platform Engineering team, you will design, build, and support enterprise integration and platform solutions that connect critical business systems and…
Added 10 mins ago
Aerodynamicist
Ford Global
Long Beach, CA
Ford's Aerodynamics team is looking for an exceptional, well rounded, Aerodynamics Engineer to grow our capabilities and help us accelerate the world's transition to sustainable energy. You…
Added 10 mins ago
Reliability Engineer - Ti - Reliability Engineering
Sylvamo
Ticonderoga, NY
Added 13 mins ago
Lead Senior Cloud Platform Engineer
Stanley Martin Homes, LLC
Reston, VA
A day in the life of a Lead Senior Cloud Platform Engineer begins with partnering with application, data, AI, and infrastructure teams to ensure cloud platforms are enabling the secure,…
Added 13 mins ago
DE
Data Engineer II
Disney Entertainment & Sports LLC
New York, NY · Santa Monica, CA
- $106,900 to $150,100 USD / year
The Data Engineer will help us in the ongoing mission of delivering outstanding services to our users allowing Disney Entertainment to be more data-driven. You will work closely with the…
Added 13 mins ago
Mechanical Engineer, Electronics Packaging, Avionics Mechanical
Amazon Kuiper Manufacturing Enterprises LLC
Redmond, WA
As a Mechanical Engineer on the Avionics Mechanical team, you will design and develop the mechanical implementation of spacecraft electrical systems from early architecture through flight…
Added 16 mins ago
AI Solutions Engineer
Stratolaunch
Mojave, CA
The AI Solutions Engineer contributes to the development, integration, and operation of AI capabilities across Stratolaunch. The Enterprise Software Team integrates a mix of COTS and custom…
Added 16 mins ago
G
Staff Software Engineer, Applied AI
GridUnity
Remote, United States
- $250,000 to $265,000 USD / year
GridUnity is seeking a Staff Software Engineer to join our Platform team, reporting to the Director of Engineering, Applied AI. You will turn our customer workflow vision into reliable…
Added 20 mins ago
Principal ASIC Engineer
Echodyne Corp
Kirkland, WA
Echodyne is seeking a Principal ASIC Engineer to join our fast-growing team.
Added 22 mins ago
UG
Principal Data Engineering - Remote
UnitedHealth Group
Minnetonka, MN
- $112,700 to $193,200 USD / year
The Principal Data Engineer is a senior individual contributor responsible for designing, building, and scaling enterprise data platforms and data pipelines. This role combines cloud-based…
Added 24 mins ago
TT
Frontend Engineer
True Talent Solutions Partners
New York, NY
- $185,000 to $300,000 USD / year
- Improve application speed and reliability through performance engineering and caching strategies.
Added 27 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 28 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
As a Senior Data Engineer, you will own the design and evolution of Absentia Labs’ biomedical data platform. You will operate with a high degree of autonomy, making long-horizon…
Added 28 mins ago
Sr. Software Engineer, Linux Kernel
SpaceXSI
Seattle, WA
Build and maintain the lean, high-reliability Linux-based operating system that underpins our supercomputer network fabric
Added 31 mins ago
Mechanical Engineer, Insource Manufacturing (Starlink)
SpaceX
Bastrop, TX
…high-volume production of Starlink products. As a Mechanical Engineer in this group, you will take end-to-end ownership of critical manufacturing equipment and material handling systems.…
Added 31 mins ago
CB
Senior Data Engineer
Commercial Bank of California
United States
- $135,000 to $170,000 USD / year
The Senior Data Engineer is responsible for designing, building, and operating scalable, secure data platforms that power enterprise analytics, reporting, and advanced data use cases,…
Added 34 mins ago
T
Manufacturing Engineer
Toyon
Goleta, CA
- $100,000 to $160,000 USD / year
…national security applications. We’re seeking a Manufacturing Engineer to help build next-generation RF sensors for some of the world’s most advanced military…
Added 36 mins ago
Applications Support Sr Analyst
Citibank, N.A.
United States
The Observability Engineer will support the organization's observability transformation initiatives by helping onboard applications to modern observability platforms and OpenTelemetry…
Added 37 mins ago
DO
Senior Systems Administrator - Hybrid Telework
Department of State Hospitals
CA
- $8,625 to $11,557 USD / month
A hands-on cloud or systems engineer who thrives in complex environments

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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