Jobs in the United States

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Added 1 min ago
Staff Software Engineer
Perry Weather
Dallas, TX
…outdoors. We combine on-site weather hardware with a software platform that automates alerts, siren activations, and safety decisions for more than 3,000 organizations - from the PGA of…
Added 9 mins ago
Senior Tech Delivery Lead Open Text
Sysco Payroll, Division of Sysco Resources Services, LLC
United States
Fluent across the full technology stack; owns delivery and support responsibility for two or more product or platform teams; drives technical priorities; supports delivery efforts through…
Added 13 mins ago
Principal Software Engineer, Agentic UX
Workday, Inc.
CA
…teams that bring together product leaders, AI engineers, and full-stack builders to create intelligent agents used by millions of people every day. This is production-grade AI - deeply…
Added 16 mins ago
Senior Full Stack AI Engineer (US Citizen)
Remote, United States
Serve as a senior, hands-on full-stack AI engineer, leading the design, development, and delivery of large-scale mission-critical AI systems.
Added 16 mins ago
Senior AI Software Developer & Engineer (US Citizen)
Remote, United States
Serve as a senior, hands-on full-stack AI engineer and technical authority, leading the technical strategy, design, and delivery of large-scale mission-critical AI systems supporting…
Added 19 mins ago
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Senior Security Architect
LogicGate
WA · Bellevue, WA · Chicago, IL
- $165,000 to $180,000 USD / year
…lead the charge in securing our AI-driven solutions and tech stack. Reporting into the IST organization, you will solve critical business challenges by architecting defenses against…
Added 23 mins ago
Senior Staff Software Engineer_Voice AI Agent Prompting
ServiceNow
Santa Clara, CA
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 24 mins ago
C
Cloud Engineer II (Full Time) - United States
Cisco
Milpitas, CA
- Full-time
Experience building rich web UIs in full stack technologies, services, such as Java, Ruby on Rails/NodeJS, React, JavaScript.
Added 31 mins ago
AI
Senior Software Development Engineer
ADUS-Adobe Inc.
United States
- $159,200 to $301,600 USD / year
Work higher up the stack, too. Contribute directly to search, browse, discovery, and the customer-facing experiences our platform powers.
Added 44 mins ago
Install Base Manager, Startups
Vercel
Austin, TX · NY · San Francisco, CA
…deepen adoption, expand into new use cases across Vercel's platform and Agent Stack, and move to commercial structures that fit their scale. By using AI and automation to maximize your…
Added 54 mins ago
M
Software Engineer
Mecka
New York, NY · San Francisco, CA
- $165,000 to $200,000 CAD / year
We're hiring Software Engineers who own problems end to end - not a single layer of the stack. You'll ship production software that powers Mecka's data platform and the tools our operators,…
Added 1 hour 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 1 hour ago
Infrastructure Software Engineer II (Remote - US)
BNSF Railway
United States
This is a full stack infrastructure engineering role, involving backend services, APIs, and developer-facing tooling for our infrastructure and platform services
Added 1 hour ago
Staff Product Manager, IAAS Platform
Nscale
NY
Nscale is taking on the hyperscalers by building a vertically integrated GenAI cloud platform. We own the data centres, software, and applications that power today's AI stack using…
Added 1 hour ago
Deployment Engineer
Andromeda Cluster
Remote, United States
Location: Remote (US) · Full-Time · Travel up to 50%
Added 1 hour ago
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Member of Technical Staff, VA
Abridge
San Francisco, CA · New York City, NY
- $210,800 to $248,000 USD / year
- Experience as a lead engineer on a major component or subsystem of a software platform, or as the lead for the platform itself
Added 1 hour ago
Software Engineer II
Badger Meter, Inc.
Los Gatos, CA
As a Software Engineer II, you'll play a key role in designing and delivering full stack applications that transform complex data into meaningful customer insights. You'll work across the…
Added 1 hour ago
Staff Software Engineer
MillerKnoll, Inc.
Remote, United States
Experience working across the full application stack including React, TypeScript and SFRA back end.
Added 1 hour ago
Junior Software Engineer- AI
Default Brand
Herndon, VA · Cincinnati, OH
We’re looking for a builder - a high‑output Software Engineer who ships production systems at a pace that resets expectations. Not an advisor. Not a reviewer. A hands‑on engineer whose…
Added 1 hour ago
Sr. Software Engineer, Training/Inference (C++)
SpaceXSI
Palo Alto, CA · Seattle, WA
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,…
Added 1 hour ago
Sr. Software Engineer, Kernels/CUDA (C++)
SpaceXSI
Palo Alto, CA · Seattle, WA
…Infrastructure team, you will own both the raw GPU supercomputer and the platform layer that runs on top of it. You will work across the full stack - from low-level GPU kernel optimizations…
Added 1 hour ago
AI
Senior Software Engineer
AMEGO INC
Attleboro, MA
- $120,000 to $160,000 USD / year
· Expert TypeScript/JavaScript and Python skills for full-stack and AI/service development.
Added 1 hour ago
Software Engineer II - Reporting Platform
Qualtrics
Seattle, WA
As a Software Development Engineer on the Reporting Platform team, you would apply your distributed-systems knowledge, familiarity with full-stack development, databases, various…
Added 1 hour ago
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Senior Full Stack Software Engineer - Shared Services
Bluesight
Remote, United States
- $130,000 to $145,000 USD / year
Bluesight is looking for a Senior Full-Stack Software Engineer to help us redefine and grow our suite of healthcare data products to further the company's mission of powering hospital and…
Added 1 hour ago
AI
Software Engineer, C++ (Onboard Platform)
Applied Intuition
Sunnyvale, CA
- $125,000 to $222,000 USD / year
…this level of reliability and safety, every component of the stack needs to be built to meet the highest quality bar, and that is especially true for the platform layer at the base of the…

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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