Jobs in the United States

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Added 3 mins ago
Software Development Manager, AWS Tagris
Amazon Development Center U.S., Inc.
Seattle, WA
…the architecture of a new access control service, weighing security requirements against performance goals. Later, you might partner with a product manager to refine upcoming feature…
Added 3 mins ago
Security Engineer, Field Innovation, Security Search and Observability (SSO)
Amazon Development Center U.S., Inc.
Austin, TX · Arlington, VA · Santa Clara, CA
We are hiring a Security Engineer to work at the intersection of customer impact and AI. Our team builds and operates the detection, correlation, and vulnerability-management capabilities…
Added 5 mins ago
Hardware Systems Engineer - AI Hardware
Cloudflare
Austin, TX
…as well as PDUs and network hardware. As a Hardware Systems Engineer, you will work with colleagues on the Engineering teams, Product and Performance teams, and Hardware Sourcing teams to…
Added 6 mins ago
Senior Principal Software Engineer – GlobalProtect (Windows & macOS Internals)
Palo Alto Networks, Inc.
CA
As a Senior Principal Software Engineer for GlobalProtect, you will be the hands-on technical authority for our endpoint networking stack across the Windows driver and macOS…
Added 6 mins ago
Principal Site Reliability Engineer (AIOps)
Palo Alto Networks, Inc.
CA
Palo Alto Networks runs a large hybrid infrastructure and is one of the largest GCP customers. As a Sr Principal DevOps Engineer, you will be part of a team supporting the services running…
Added 9 mins ago
Solutions Engineer, Splunk
Cisco Systems, Inc.
Remote, United States
Splunk, a Cisco company, is looking for a Solutions Engineer to be the trusted technical advisor for a set of enterprise accounts. You’ll help customers get real value from the Splunk…
Added 10 mins ago
Software Engineer Senior
GD Information Technology, Inc.
United States
As a Software Engineer Senior at GDIT, you will design, develop, integrate, and sustain secure software applications and data-driven solutions that support complex mission requirements.…
Added 11 mins ago
Mechanical Engineer
Booz Allen Hamilton_United States
Panama City, FL
…hardware solutions for real-world applications. As a Mechanical Engineer, you'll collaborate with experienced engineers and cross-functional teams to tackle complex hardware challenges…
Added 11 mins ago
Systems and Digital Engineer, Mid
Booz Allen Hamilton_United States
Arlington, VA
Systems and Digital Engineer, MidThe Opportunity:
Added 11 mins ago
Systems and Digital Engineer, Mid
Booz Allen Hamilton_United States
Arlington, VA
Systems and Digital Engineer, MidThe Opportunity:
Added 11 mins ago
A
Principal Research Scientist I
AbbVie
North Chicago, IL
- $124,500 to $236,500 USD / year
…cross-functional teams to drive exceptional science and innovative product development strategies. We are looking for diverse candidates with strong scientific and leadership experience to…
Added 12 mins ago
Principal Software Development Engineer (AI Innovation)
CVS Health
Richardson, TX
The Principal Software Development Engineer will drive innovative, enterprise-wide solution designs at the business unit level for highly complex, strategic initiatives. In this high-impact…
Added 12 mins ago
CS
Cloud Engineer II (Full Time) - United States
Cisco Systems, Inc.
Milpitas, CA
- Full-time
Our Security Policy and Access team is at the heart of Cisco’s mission, building and operating market-leading platforms like the Cisco Identity Services Engine and Meraki Access Manager to…
Added 12 mins ago
Software Engineer II - AI Platforms
US: Mastercard International Incor
Atlanta, GA
…work with senior engineers, AI Engineers, Data Scientists, Product Managers, and platform teams. This role is ideal for a software engineer with a strong foundation in backend or…
Added 12 mins ago
Software Engineer II - AI Platforms
US: Mastercard International Incor
Atlanta, GA
…work with senior engineers, AI Engineers, Data Scientists, Product Managers, and platform teams. This role is ideal for a software engineer with a strong foundation in backend or…
Added 12 mins ago
Senior Software Engineer - AI Platforms
US: Mastercard International Incor
Atlanta, GA
Mastercard is seeking a Senior Software Engineer to design and build production-grade AI platform capabilities that enable AI-powered products and agentic experiences across B&MI.
Added 16 mins ago
Full Stack Software Engineer II (Angular, Java)
Global Payment Holding Company
CINCINNATI, OH · ATLANTA, GA · DENVER, CO
Make your mark at one of the biggest names in payments. We’re looking for a Full Software Engineer II (Angular, Java) to join our ever-evolving software engineering team and help shape the…
Added 18 mins ago
Distinguished Engineer, Trading
LPL Financial Corp
United States
…management platforms. You will partner with business executives, product leaders, architects, data scientists, engineers, risk, and compliance stakeholders to identify high-value…
Added 25 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 28 mins ago
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Staff Backend Engineer - Performance - US
Teleport
Remote, United States
- $222,000 to $342,000 USD / year
Teleport is the AI Infrastructure Identity Company. We're solving one of the hardest problems in security: giving every human, machine, workload, and AI agent a cryptographically secured…
Added 29 mins ago
Principal Software Engineer, Agentic UX
Workday, Inc.
CA
As a Principal Software Engineer, Agentic UX in Agent Factory, you’ll help build the conversational AI experience and ambient capabilities that bring Workday’s agents to life. You are an…
Added 29 mins ago
P2 SRE and Platform Engineer - Sana Search (US Federal)
Workday, Inc.
CA
The Workday Sana Search Team is responsible for creating the world’s most powerful, platform-agnostic enterprise search product, transforming the way people and agents interact with…
Added 31 mins ago
Senior Sales Systems Engineer (South Atlantic)
Veeam Software
Miami, FL
…scale. As the market leader in both data resilience and data security posture management, Veeam is built for the convergence of identity, data, security, and AI risk. Headquartered in…
Added 32 mins ago
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Principal Platform AI Engineer, Healthcare Agentic AI
Insight Global
Louisville-Jefferson County, KY
- From $86 USD / hour
Daily Responsibilities: A large healthcare organization is looking for a Principal Platform AI Engineer to lead hands-on engineering for its enterprise Healthcare Agentic AI Platform. This…
Added 33 mins ago
AI DevOps Engineer
PingWind
Rockville, MD
PingWind is seeking an AI DevOps Engineer with a strong emphasis on Artificial Intelligence and Machine Learning to join the PingWind team supporting Agency for Healthcare Research and…

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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