Jobs in the United States

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Added 4 mins ago
Embedded Systems Engineer - ATL / Eagan MN
Lockheed Martin
Eagan, MN
Experience with modeling, data analysis, and visualization in Python
Added 5 mins ago
Capital One Shopping Tech, Data Engineer 5 (Remote- Eligible)
Capital One
Saint Paul, MN
Collaborate with and across Agile teams to design, develop, test, implement, and support technical solutions in full-stack development tools and technologies
Added 5 mins ago
C
Data Quality Engineer (Databricks & dbt)
Cognizant
Saint Paul, MN
- $70,000 to $117,000 USD / year
We are seeking a Data Quality Engineer to ensure the accuracy, consistency, and reliability of enterprise data platforms. The ideal candidate will design and automate data quality testing…
Added 10 mins ago
Hardware Engineer, Networking Switch Bring Up and Rack Level Performance Validation
Advanced Micro Devices, Inc
Santa Clara, CA
Gather system feature requirements, define detailed test plans, and execute hardware validation plans.
Added 10 mins ago
Devops Platform Engineer
Advanced Micro Devices, Inc
San Jose, CA
We are seeking a hands-on Platform Engineer to build and operate the infrastructure foundations that enable engineering teams to deliver reliable, scalable, and secure products. This role…
Added 10 mins ago
Hardware Systems Engineer -Data Center/Lab Environment
Advanced Micro Devices, Inc
Secaucus, NJ
Maintain accurate inventory records for servers, GPUs, switches, storage devices, PDUs, optics, cables, test equipment, and associated infrastructure assets.
Added 12 mins ago
Forward Deployed Engineer
Safe Security
Remote, United States
As a Forward Deployed Engineer, you are the implementation owner of a customer’s success with SAFE, from the first onboarding call to a working, trusted deployment delivering value as a key…
Added 23 mins ago
Model Engineer
SpaceXAI
Palo Alto, CA
- An excellent programmer and software engineer, comfortable working across the research stack in Python and PyTorch or JAX
Added 23 mins ago
ASIC Design Engineer, Cloud TPU
Google
Sunnyvale, CA
Experience with Linting, CDC, RDC, LEC and experience with Scripting languages (i.e. Python or Perl).
Added 38 mins ago
ET
Machine Learning Data Engineer
EdgeQ Technologies Private Limited
Remote, United States
- $110,000 to $175,000 USD / year
We are seeking a skilled and experienced Machine Learning Data Engineer to join our growing AI and Data Engineering team in the United States. The ideal candidate will be responsible for…
Added 38 mins ago
Software Engineer – Full Stack (JavaScript & Python)
HTC Global Services Inc
Dearborn, MI
Software Engineer – Full Stack (JavaScript & Python) Overview / Summary
Added 38 mins ago
KC
Service System Engineer Mechanical/Optical
KLATencor Corporation
Ann Arbor, MI
- $97,000 to $164,900 USD / year
To make electronics, you need chips, wafers, transistors, reticles, and... To make these, you must see, test and manufacture them at scale-faster and better than ever before. That's where…
Added 40 mins ago
Network Administrator 3/4 - TS/SCI - Dulles VA
Military Spouse Jobs & VetJobs
United States
The Northrop Grumman CIDO Classified Solutions team is seeking a Network Administrator / Engineer (at level 3 or level 4) to join our team supporting complex, multi-site networks that…
Added 40 mins ago
2026 Associate/Electrical Engineer- Gilbert AZ
Military Spouse Jobs & VetJobs
United States
Our Tactical Space Systems Division Integration and Test group is seeking an Electronics Engineer to join our team of qualified and diverse individuals in Gilbert, AZ. You will have the…
Added 42 mins ago
Senior Infrastructure Engineer
Mach Industries
Huntington Beach, CA
…access approved AI capabilities. Partner with the AI Platform Engineer on secure integrations and reusable infrastructure, with appropriate access controls and human review for…
Added 46 mins ago
Design Verification Engineer Intern (Summer 2027)
MIPS Holding Inc
TX
MIPS – A GlobalFoundries company is seeking a Design Verification Engineer Intern to join the CPU verification team in Plano, Texas. The intern will gain hands-on experience verifying…
Added 55 mins ago
Mechanical Engineer
Sapho Bio
San Carlos, CA
We are looking for a Mechanical Engineer to design, build, and maintain the hardware our lab runs on. You will work directly with our lab and operations teams in San Carlos, turning manual…
Added 1 hour ago
Process Engineer 5
Lam Research
Tualatin
As a Process Engineer at Lam, you will operate on cutting-edge technology, harnessing atomic precision, material science, and surface engineering to push technical boundaries. Your role…
Added 1 hour ago
Sr Consultant, Software Engineer (AI Engineer)
Nationwide Life and Annuity Insurance Co
OH · AZ · IA
The Sr Consultant, Software Engineer (AI Engineer) is accountable for turning AI strategy into trusted, reusable technology capabilities that enable Nationwide to build and operate AI…
Added 1 hour ago
Senior Level Developer
Ignite IT
Remote, United States
This role requires expert-level proficiency in Python and deep expertise in AWS services and serverless architecture. The Senior-Level Developer will actively participate in system…
Added 1 hour ago
Senior AI/ML Engineer
Ignite IT
Remote, United States
Ignite IT Hub is seeking a senior AI/ML Engineer to maintain and enhance the U.S. Census Bureau's LLM Autocoder, which assigns standardized codes to survey write-in responses. You will…
Added 1 hour ago
Full Stack Developer (Python / Java / Angular / AWS)
Ignite IT
Remote, United States
This is an excellent opportunity for an experienced engineer who enjoys solving complex technical challenges, working with modern cloud technologies, and delivering high-quality software in…
Added 1 hour ago
Software Lead and Integration Manager
IESE Solutions
Peterson Space Force Base, CO
…infrastructure to develop a user-focused solution. We’re looking for an engineer like you to lead a U.S. Space Force team of physicists, systems engineers, and software developers as they…
Added 1 hour ago
Senior Azure/AWS Cloud Engineer (5539)
SMX
Huntsville, AL
SMX is actively searching for a dynamic and adept Senior Azure/AWS Cloud Engineer to support our government client in Huntsville, AL.
Added 1 hour ago
Azure/AWS Cloud Engineer (5540)
SMX
Huntsville, AL
SMX is actively searching for an Azure/AWS Cloud Engineer to support our government client in Huntsville, AL.

SpaceXAI

Model Engineer

Palo Alto, CA, United States

$160,000 - $250,000 USD

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Job details

Pay: $160,000 - $250,000 USD
Posting language: English
Posted: Nov 9, 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.

Model Engineer

SpaceXSI is building Super Intelligence to help humanity understand the universe. We train frontier coding agents and scale RL on real user data to make them increasingly effective. We're looking for Research Scientists who can drive effective RL or mid-training research in a small-team setting. You'll own ambiguous, hard research problems end-to-end: forming hypotheses, designing experiments, building the training/eval/data needed to test them, and pushing results into the next model.

RESPONSIBILITIES:

Design and run rigorous experiments that turn research ideas into measurable gains in model capability
Improve data recipes through data quality, deduplication, and mixture experiments
Define what makes RL data and rewards good, including grader design and preventing reward hacking
Advance training science, from architecture and scaling experiments to post-training recipes for coding and computer-use agents
Build evals and targeted tasks that expose model weaknesses and guide where the team invests next
Partner with engineers to take promising results from small experiments to frontier-scale training runs

BASIC QUALIFICATIONS:

Experience writing production-quality code in Python, PyTorch, JAX, Rust, or C++

PREFERRED SKILLS AND EXPERIENCE:

Able to handle ambiguous research tasks with little guidance, and to own a research direction end to end
Care an unusual amount about data quality, and can dive into the data when appropriate
Truth seeking, aiming to learn more about the science than to prove your ideas are correct
Experience with RL algorithms for language models, scaling laws, or building RL environments and evals
Experience with distributed training at scale and debugging problems that only show up at scale
Experience training frontier-scale models
Strong background in RL and machine learning fundamentals
An excellent programmer and software engineer, comfortable working across the research stack in Python and PyTorch or JAX
Hands-on experience training large models, through pretraining, post-training or RL
A track record of original work in ML, such as new methods or real improvements, shown through research, open source or production impact
MS or PhD in CS, ML, math, physics or a related field, or equivalent research experience

ADDITIONAL REQUIREMENTS:

Onsite role: must be able to work in person at the Palo Alto office

COMPENSATION AND BENEFITS:

The annual compensation range for this role is listed below.

Annual Salary:

$160,000 - $250,000 USD

Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience.

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.

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