Jobs in the United States

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Added 4 mins ago
CO
Senior Civil Engineer Supervisor (Transportation)
Commonwealth of Pennsylvania
Uniontown, PA
- $80,646 to $104,959 USD / year
Help shape the future of transportation projects across Pennsylvania! As a Senior Civil Engineer Supervisor (Transportation) with the Department of Transportation, you will lead complex…
Added 5 mins ago
Mechanical Engineer II (Product Improvement Engineering)
Life Fitness, LLC
Ramsey, MN
Are you a Mechanical Engineer, passionate about fitness, and looking to gain hands-on experience and grow your skills? Life Fitness / Hammer Strength is looking for a Mechanical Engineer II…
Added 5 mins ago
CONTINUOUS IMPROVEMENT ENGINEER
Wells Concrete Products, Inc.
Albany, MN
The Continuous Improvement (CI) Engineer leads and facilitates continuous improvement initiatives across the precast concrete manufacturing operation. This position drives operational…
Added 5 mins ago
Field Service Engineer
GEA Systems North America LLC
Oakdale, MN
GEA Systems North America LLC seeks a Field Service Engineer in Oakdale, MN and various unanticipated locations throughout the U.S. Responsibilities: Work focused on Blow Molders but…
Added 6 mins ago
CM
Quality Engineer II
Cirtec Medical Corporation
Brooklyn Park, MN
- $80,000 to $95,000 USD / year
Added 6 mins ago
Supplier Quality Engineer II - Brooklyn Park, MN
Medtronic
Brooklyn Park, MN
This Supplier Quality Engineer II position is based at Medtronic’s Brooklyn Park, Minnesota site and supports enterprise operations through supplier qualification, New Product Development,…
Added 6 mins ago
Embedded Systems Engineer - ATL / Eagan MN
Lockheed Martin
Eagan, MN
Added 6 mins ago
HA
Principal ASIC Design Engineer
Honeywell Aerospace
Plymouth, MN
- $173,000 to $200,000 USD / year
As a Principal ASIC Design Engineer at Honeywell Aerospace, you will be a technical leader in our ASIC design team, responsible for driving innovation and excellence in ASIC design, leading…
Added 6 mins ago
Staff Process Development Engineer
SkyWater Technology
Bloomington, MN
Join our dynamic team as a Staff Process Development Engineer to lead the development of new, novel technologies and leverage the advanced capabilities of our semiconductor fab to enable…
Added 6 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 6 mins ago
C
Senior Java Full Stack Engineer – Spring Boot & AWS
Cognizant
Saint Paul, MN
- $86,000 to $99,000 USD / year
As a Senior Java Full Stack Engineer – Spring Boot & AWS , you will make an impact by designing and delivering scalable, secure, cloud-based applications using Java, Spring Boot, React, and…
Added 6 mins ago
Senior Workday Security Engineer
CVS Health
Saint Paul, MN
CVS Health is seeking an experienced Senior Workday Security Engineer to join the HR Technology Workday Security team. This role designs, supports, governs, and optimizes security across…
Added 6 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 6 mins ago
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Associate Quality Engineer
Coloplast
Minneapolis, MN
- $11.41 USD / hour
The Interventional Urology Operations Associate Quality Engineer is responsible for supporting and maintaining quality compliance within US Operations. In all actions, they will demonstrate…
Added 6 mins ago
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Internship - Geotechnical Engineer (Hybrid)
Barr Engineering Co.
Minneapolis, MN
- $22.66 to $30.46 USD / hour
…collecting field samples and performing field logging of exploratory test…
Added 6 mins ago
BE
Internship - Geotechnical Engineer - 6 Month (Hybrid)
Barr Engineering Co.
Minneapolis, MN
- $22.66 to $30.46 USD / hour
Barr is seeking a geotechnical engineer intern to join our innovative and collaborative team of over 90 geotechnical engineers and geologists. In this hybrid role, you will support the…
Added 6 mins ago
Senior Cloud Engineer
Eide Bailly
Minneapolis, MN
The Cloud Senior Engineer is responsible for supporting complex engineering initiatives across the Microsoft cloud environment, with a primary focus on Microsoft Dynamics 365 CRM, the Power…
Added 6 mins ago
Senior Cloud Engineer
Eide Bailly
Minneapolis, MN
The Cloud Senior Engineer is responsible for supporting complex engineering initiatives across the Microsoft cloud environment, with a primary focus on Microsoft Dynamics 365 CRM, the Power…
Added 6 mins ago
Associate Director, Cyber Operations (Countermeasures)
KPMG LLP
Minneapolis, MN
…professional (CISSP) and google professional cloud security engineer are…
Added 12 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 12 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 12 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
Principal Semiconductor Packaging Technologist – Customer Solutions
Advanced Micro Devices, Inc
San Jose, CA
We are looking for a Principal Packaging Integration Engineer who can do two things exceptionally well: drive technically sound packaging architecture decisions and be the trusted…
Added 13 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 24 mins ago
Model Engineer
SpaceXAI
Palo Alto, CA
…designing experiments, building the training/eval/data needed to test them, and pushing results into the next…

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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