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Distinguished Engineer, Trading
LPL Financial Corp
United States
…Financial is seeking an AI Distinguished Leader to define the vision, platforms, and responsible practices that bring AI-powered innovation to advisors, investors, and the teams that…
Added 1 min ago
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Test Engineer
Manpower Engineering
Foster City, CA
- $38 USD / hour
Our client, a leader in safety-critical software, is seeking a Test Engineer to join their team. As a Test Engineer, you will be part of the Software department supporting the Product…
Added 2 mins ago
CAD/CAM Engineer
BG MC US Holdings LLC Force Motion Group
Brecksville, OH
HYSON is seeking an experienced CAD/CAM Engineer to program CNC machines and prepare production-ready designs and documentation across Hyson’s product lines. In this role, you will turn…
Added 3 mins ago
FLEX Senior Software Engineer
Marriott
Remote, United States
7+ years’ experience in software development with expert level expertise in multiple programming languages and methodologies
Added 3 mins ago
Sr. RF/Microwave Engineer, Satellites (Starlink)
SpaceX
Redmond, WA
…allow users to connect within minutes of unboxing, and the software that brings it all together. We’ve only begun to scratch the surface of Starlink’s potential global impact and are…
Added 3 mins ago
Sr. Full Stack Engineer, Launch Software
SpaceX
Hawthorne, CA
Sr. Software Engineer: $165,000.00 - $230,000.00/per year
Added 3 mins ago
Power Electronics Engineer - High Voltage (Starlink)
SpaceX
Redmond, WA
…allow users to connect within minutes of unboxing, and the software that brings it all together. We’ve only begun to scratch the surface of Starlink’s potential global impact and are…
Added 4 mins ago
TP
Automation Engineer
Tetra Pak
Brooklyn Park, MN
- $72,500 to $103,400 USD / year
We are looking for an Automation Engineer who will work independently in project and/or pre-project teams. You will design, implement, and validate complex automation solutions and provide…
Added 5 mins ago
Commissioning Engineer I
Affiliated Engineers, Inc
Boston, MA
…Design+Construction, Engineering News-Record, and Consulting-Specifying Engineer, with distinctions such as being named the #1 Laboratory Engineering Firm in the nation and receiving…
Added 6 mins ago
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DevOps Engineer
Inspire11
Chicago, IL · 1 N Dearborn St. Chicago, IL
- Up to $10,000 USD / month
You have the ability to choose platforms, tools, languages, and frameworks that are appropriate to a specific software solutions
Added 7 mins ago
Senior Tech Delivery Lead Open Text
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Added 8 mins ago
Lead Software Development Engineer in Test (SDET)
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We are seeking a Lead Software Development Engineer in Test (SDET) to join our team as an individual contributor. In this role, you will design, build, and maintain scalable test automation…
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Senior Transportation Hydraulics Engineer
AECOM
Raleigh, NC
- $135,000 to $165,000 USD / year
AECOM is seeking an experienced Senior Transportation Hydraulics Engineer to join our Transportation team in Raleigh, NC. This position will provide technical leadership and engineering…
Added 8 mins ago
Applications Engineer II
Fenner Precision Polymers
Lititz, PA
People - Believing people are drivers of energy and progress, the organization is built on a human-centered vision.
Added 9 mins ago
Sr. HVAC Engineer
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Knoxville, TN
Core to Bechtel is our Vision, Values and Commitments. They are what we believe, what customers can expect, and how we deliver. Learn more about our extraordinary teams building inspiring…
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PD&P Layout Designer
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San Juan, AR
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PD&P Piping Designer
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Engineer 1 - Inventory
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Seattle, WA
…developers to take a high level of ownership throughout the software life…
Added 11 mins ago
System Administrator I – 1 Year Position
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…as well as in AWS and Azure cloud and all related systems or software. You will analyze and resolve problems associated with server hardware/software and applications software ensuring…
Added 13 mins ago
Systems Test Engineer (EMI) - 20647
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Northrop Grumman Defense Systems is seeking a Electromagnetic Interference (EMI) Systems Test Engineer to join the Sentinel program in enhancing the US Space Force’s ICBM capabilities and…
Added 13 mins ago
2027 Associate Structural Engineer / Structural Engineer - Dulles VA or McLean VA
SP - Orbital Space Systems
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…your career. We’ll support you with training and our shared vision of global…
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Missile Integration Technical Lead - 20695
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Northrop Grumman Defense Systems is seeking a Missile Integration Technical Lead - Senior Staff Systems Test Engineer to join the Sentinel program in enhancing the US Space Force’s ICBM…
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Principal / Sr Principal Modeling Simulation Systems Engineer - 18976
CORP-Corporate Office
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Northrop Grumman Defense Systems is seeking a Principal / Sr Principal Modeling Simulation Engineer Systems. This opening is in Roy, UT and will support the Sentinel Program. Northrop…
Added 13 mins ago
Sentinel - Principal / Sr Principal Systems Engineer - 18977
CORP-Corporate Office
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Northrop Grumman Defense Systems is seeking a Principal / Sr Principal Systems Engineer. This opening is in Roy, UT and will support the Sentinel Program. Northrop Grumman supports the Air…
Added 13 mins ago
Sentinel - Nuclear Hardness Survivability Engineer - 20483*
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Northrop Grumman Defense has an opening for a Nuclear Hardness Survivability Systems Engineer (Level 2/3) to join its Guidance Computer team in Roy, UT in support of the Sentinel Program.…

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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