Jobs in the United States

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Added 2 mins ago
District Engineer
Department of Transportation
Mecklenburg County, NC
Experience in reviewing project plans and specifications for locally managed projects, subdivisions, right of way encroachments and driveway permit applications for compliance with all…
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 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
This role involves software, firmware, gateware, and/or hardware design to support the development of radio-frequency (RF), photonic, and/or advanced computing systems. Your key…
Added 6 mins ago
Capital One Shopping Tech, Data Engineer 5 (Remote- Eligible)
Capital One
Saint Paul, MN
Independently design, build and deliver world-class cloud data solutions and applications with little or no support from supervisors or managers
Added 6 mins ago
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Senior .NET Full Stack Engineer with C#
Cognizant
Saint Paul, MN
- $86,000 to $99,000 USD / year
As a Senior .NET Full Stack Engineer with C#, you will make an impact by designing and developing scalable enterprise applications that support healthcare payer operations, including…
Added 6 mins ago
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Senior Full Stack Engineer – .NET & C#
Cognizant
Saint Paul, MN
- $86,000 to $99,000 USD / year
As a Senior Full Stack Engineer – .NET & C#, you will make an impact by designing and developing scalable enterprise applications that support healthcare payer operations, including…
Added 6 mins ago
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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
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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GCP data Engineer
Cognizant
Saint Paul, MN
- $100,000 to $120,000 USD / year
Cognizant is seeking an experienced Knowledge Graph Data Engineer to build and operate the connectivity, profiling, and graph/search foundation that powers enterprise ontology and knowledge…
Added 6 mins ago
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Senior Knowledge Graph & Ontology Architect
Cognizant
Saint Paul, MN
- $130,000 to $160,000 USD / year
Design and govern enterprise ontologies, semantic models, and knowledge graph architectures, including OWL/RDF ontologies, classes, properties, taxonomy structures, and SHACL validation…
Added 6 mins ago
Sr. Operations Engineer, AMZL Ops Integration Engineering
Amazon
Minneapolis, MN
Amazon Logistics (AMZL) is looking for an Operations Engineer to join the Ops Integration Engineering (OIE) team. OIE is responsible for bridging the gap between engineering innovation and…
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
Engineer II, Google Cloud
PwC
Minneapolis, MN
As a Engineer II, Google Cloud you will contribute to the design, build, testing, and optimization of cloud-native applications on Google Cloud, supporting work across the full software…
Added 11 mins ago
SI
Principal Platform Solution Engineer
Salesforce, Inc.
Remote, United States
- $173,460 to $255,150 USD / year
…Specialist team. In this role, you’ll bring deep technical expertise and strategic insight to help customers securely harness the full power of the Salesforce Platform. You’ll work closely…
Added 12 mins ago
Sr. Staff Physical Design Engineer
Advanced Micro Devices, Inc
Austin, TX
Join an experienced physical design team working on AMD graphics IP for next-generation AI data center chips. In this role, you will own and drive complex physical design work for…
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
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 19 mins ago
Senior API & Integration Engineer
Vast Bank
Remote, United States
Design, develop, and maintain secure integrations across core banking, payments, treasury, sponsor banking/FBO, digital channels, and internal applications using APIs, webhooks, messaging,…
Added 24 mins ago
Software Engineer, Bugbot
SpaceXAI
New York, NY · San Francisco, CA
…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…
Added 24 mins ago
Engineering Manager, Agent & Product Security
SpaceXAI
New York, NY · Palo Alto, CA
…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…
Added 24 mins ago
Model Engineer
SpaceXAI
Palo Alto, CA
…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…
Added 24 mins ago
Software Engineer, Compute Infra
SpaceXAI
San Francisco, CA · New York, NY
…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…
Added 24 mins ago
Software Engineer, Client Infrastructure
SpaceXAI
San Francisco, CA
As an Engineer on the Client Infrastructure team at SpaceXSI, you'll design and build the systems that make our desktop experience performant and stable for millions of developers. You'll…

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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