Jobs in the United States

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Added 6 mins ago
Financial Manager - SES - Tysons, VA
M.C. Dean, Inc
Tysons, VA
…Tysons, Virginia, and employs more than 5,800 professionals who engineer and deploy automated, secure, and resilient power and technology systems; and deliver the management platforms…
Added 7 mins ago
Telecommunications Engineer 4 - Tysons, VA
M.C. Dean, Inc
Tysons, VA
The engineer owns the quality and constructibility of the team's deliverables: site survey reports, site installation plans, equipment lists, bills of materials, drawings, specifications,…
Added 7 mins ago
Telecommunications Engineer 2 - San Antonio, TX
M.C. Dean, Inc
San Antonio, TX
…Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems…
Added 7 mins ago
Telecommunications Engineer 3 - Tysons, VA
M.C. Dean, Inc
Tysons, VA
…Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems…
Added 7 mins ago
Telecommunications Engineer 2 - Tysons, VA
M.C. Dean, Inc
Tysons, VA
…Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems…
Added 7 mins ago
Deployment Network Engineer 4
M.C. Dean, Inc
Springfield, VA
…Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems…
Added 7 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 7 mins ago
Senior Design Engineer (Engineer 5)
M.C. Dean, Inc
Tysons, VA
…Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems…
Added 7 mins ago
Design Engineer Staff
M.C. Dean, Inc
Caroline County, VA
…Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems…
Added 7 mins ago
Telecommunications Specialist 2 (Technical Specialist 2) - Tysons, VA
M.C. Dean, Inc
Tysons, VA
…Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems…
Added 7 mins ago
Telecommunications Specialist 4 (Technical Specialist 4) - Tysons, VA
M.C. Dean, Inc
Tysons, VA
…Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems…
Added 7 mins ago
Telecommunications Specialist 2 (Technical Specialist 2) - San Antonio, TX
M.C. Dean, Inc
San Antonio, TX
…Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems…
Added 8 mins ago
Sr. Software Engineer, Linux Kernel
SpaceXSI
Seattle, WA
…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…
Added 9 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 10 mins ago
Project Industrial Water Wastewater Process Engineer
Arcadis
Raleigh
…quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world’s most complex challenges and deliver more impact…
Added 17 mins ago
DO
Senior Systems Administrator - Hybrid Telework
Department of State Hospitals
CA
- $8,625 to $11,557 USD / month
Build secure, scalable infrastructure that supports the Departments State Hospitals services. Help power the mission of behavioral health across California. As we modernize our IT…
Added 20 mins ago
Senior Electrical Engineer - Protection Applications (St. Louis)
Burns & McDonnell
Saint Louis, MO
The Senior Electrical Engineer will lead electrical design project teams to create world class designs for new projects, alterations and redevelopments on a variety of projects including…
Added 21 mins ago
Senior R&D Test Engineer - Electrical
Stryker Employment Company, LLC
Flower Mound, TX
As a Senior R&D Test Engineer, Electrical, you'll work closely with electrical, software, firmware, and systems engineers to evaluate new product designs, troubleshoot technical challenges,…
Added 22 mins ago
SharePoint Developer
Koniag Government Services
Washington, DC
Koniag Technology Solutions, Inc a Koniag Government Services company, is seeking a Principal Cloud Security Engineer with a Secret security clearance to support KTS and our government…
Added 22 mins ago
Automation Engineer
Koniag Government Services
Washington, DC
Koniag IT Systems, LLC, a Koniag Government Services company, is seeking an Automation Engineer to support KITS and our government customer in Washington, DC. The position is hybrid,…
Added 22 mins ago
Senior Knowledge Management Engineer (TS)
Koniag Government Services
MD
…employee and corporate culture seeks a Senior Knowledge Management Engineer with a Top-Secret Clearance. KGS delivers Enterprise Solutions, Professional Services, and Operational Management…
Added 22 mins ago
Microsoft Identity SME (REMOTE)
Koniag Government Services
Washington, DC
…Microsoft identity platform expertise across three concurrent System Enhancement Studies under Task Order 0003, covering Contested, Degraded, and Operationally Limited (CDO-L) ICAM…
Added 22 mins ago
DAF365 JML Lead Engineer (Study 3) (REMOTE)
Koniag Government Services
Washington, DC
Koniag IT Systems, LLC , a Koniag Government Services company, is seeking an experienced DAF365 JML Lead Engineer to support the Department of the Air Force (DAF) in advancing its…
Added 28 mins ago
Project Engineer
Ducommun
Coxsackie, NY
The Project Engineer is responsible for the technical support associated
Added 28 mins ago
Senior Commissioning Engineer - Power (Kansas City)
Burns & McDonnell
Kansas City, MO
The Senior Commissioning Engineer leads commissioning planning, commissioning coordination, and schedule development for various Power Plant and/or Industrial Plants. This position will…

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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