Jobs in the United States

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Added 47 mins ago
Staff Software Engineer, Mobile and On-Device Agentic AI, XR
Google
San Jose, CA · San Francisco, CA
…execution across mobile platform (Android/iOS), research (GDM), infrastructure, product management, and hardware/device engineering…
Added 52 mins ago
CO
Engineering Trainee (Part-Time Benefited) - Department of Transportation)
City of San Jose
San Jose, CA
- $30.24 to $36.77 USD / hour
- Part-time
This internship will be with the Infrastructure Maintenance (IM) division whose main goal is to operate and maintain the City’s transportation infrastructure that promotes a safe,…
Added 1 hour ago
Staff Data Scientist, Measurement Methodology Innovation
Google
New York, NY
…need to solve complex engineering challenges and expand our infrastructure, while maintaining a universally accessible and useful experience that people around the world rely on. In joining…
Added 1 hour ago
Staff Software Engineer, DeepMind
DeepMind
Mountain View, CA · New York, NY
Experience developing, evaluating, or serving large language models, agentic workflows, multimodal pipelines, or AI runtime APIs (e.g., PyTorch, JAX, Triton, vLLM, Gemini API).
Added 3 hours ago
Software Engineer, Pretraining Data
SpaceXAI
Palo Alto, CA
…You'll work on large-scale crawling, data platform, and pipeline infrastructure, turning raw dumps into the datasets our models train on, and making iteration with researchers fast and…
Added 6 hours ago
F
Product Enablement Lead
Fireworks
San Mateo, CA
- $210,000 to $250,000 USD / year
…state-of-the-art open models across text, image, embedding, audio, and multimodal workloads. Today, Fireworks is a Series D company valued at $17.5 billion, bringing together an ambitious,…
Added 7 hours ago
SO
Highway Maintenance Worker 2 | Clarkston
State of Washington
Clarkston, WA
- $27.97 to $34.07 USD / hour
The Washington State Department of Transportation (WSDOT) is a multimodal agency with a global reputation for excellence. Our dedicated workforce plans, designs, builds, and operates an…
Added 9 hours ago
G
Transportation Engineer
GPAC
Tampa, FL
- $75,000 to $130,000 USD / year
Design and support transportation infrastructure projects including roadways, intersections, highways, and multimodal facilities
Added 10 hours ago
Security Risk & Compliance, SOX IT
Anthropic
San Francisco, CA · Seattle, WA · New York City, NY · Washington, DC · NY
…and change how a frontier AI company builds its compliance…
Added 10 hours ago
PP
Food Service Associate (nomnom North Moscow | Part-Time)
Par Pacific
Moscow, ID
- $16.95 to $20.5 USD / hour
- Part-time
Par Pacific Holdings, Inc., based in Houston, Texas, owns, manages and maintains interests in energy and infrastructure businesses. We are a growing energy company focused on renewable and…
Added 10 hours ago
PP
Food Service Associate (nomnom Airway Heights | Part-Time)
Par Pacific
Airway Heights, WA
- $17.13 to $20.83 USD / hour
- Part-time
Par Pacific Holdings, Inc., based in Houston, Texas, owns, manages and maintains interests in energy and infrastructure businesses. We are a growing energy company focused on renewable and…
Added 10 hours ago
PP
Food Service Associate (nomnom Deer Park | Part-Time)
Par Pacific
Deer Park, WA
- $17.13 to $20.83 USD / hour
- Part-time
Par Pacific Holdings, Inc., based in Houston, Texas, owns, manages and maintains interests in energy and infrastructure businesses. We are a growing energy company focused on renewable and…
Added 10 hours ago
CO
Deputy Director of Public Works
City of Berkeley
Berkeley, CA
- $82.24 to $118.31 USD / hour
…capital program of over $150M, the Deputy Director advances multimodal transportation improvements, guides critical infrastructure investments, and enhances departmental operations and…
Added 11 hours ago
H
Member of Technical Staff, Multimodal Pretraining Data
Hark
San Jose, CA
- $180,000 to $450,000 USD / year
Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text,…
Added 11 hours ago
H
Member of Technical Staff, Distributed Training Performance
Hark
San Jose, CA
- $180,000 to $450,000 USD / year
Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text,…
Added 11 hours ago
SC
Transit Service Planning Manager
Santa Clara Valley Transportation Authority
San Jose, CA
- $82.45 to $100.21 USD / hour
…transit service planning for one of the Bay Area’s largest multimodal transit…
Added 12 hours ago
Senior Roadway Engineer
Apex Companies
Fort Myers, FL · Naples, FL · Punta Gorda, FL
…the opportunity to work on a variety of roadway, drainage, multimodal, and public infrastructure projects for FDOT and local government clients throughout…
Added 12 hours ago
TG
Planning Associate I-II (Project Manager)
Trilon Group
Oakland, CA
- $100,000 to $140,000 USD / year
…great opportunity for someone who believes in the importance of multimodal transportation and who is interested in growing their career as a transportation planning professional. If you are…
Added 12 hours ago
UO
Neuromodulation Research Program Manager
University of Colorado Denver
Aurora, CO
- $70,446 to $89,607 USD / year
Coordinate administrative and operational interfaces among research teams, MRI facilities, TMS resources, and other shared research infrastructure.
Added 13 hours ago
SO
Transportation Technician 3 - Washington State Ferries
State of Washington
Seattle, WA
- $5,781.25 to $7,768.92 USD / month
The Washington State Department of Transportation (WSDOT) is a multimodal agency with a global reputation for excellence. Our dedicated workforce plans, designs, builds, and operates an…
Added 13 hours ago
SO
Highway Maintenance Worker 2 | Raymond
State of Washington
Raymond, WA
- $4,866 to $5,928 USD / month
The Washington State Department of Transportation (WSDOT) is a multimodal agency with a global reputation for excellence. Our dedicated workforce plans, designs, builds, and operates an…
Added 13 hours ago
SO
Highway Maintenance Worker 2 | Multiple Positions
State of Washington
Vancouver, WA
- $4,866 to $5,928 USD / month
The Washington State Department of Transportation (WSDOT) is a multimodal agency with a global reputation for excellence. Our dedicated workforce plans, designs, builds, and operates an…
Added 13 hours ago
SO
Highway Maintenance Supervisor
State of Washington
Mount Vernon, WA
- $5,779 to $7,044 USD / month
The Washington State Department of Transportation (WSDOT) is a multimodal agency with a global reputation for excellence. Our dedicated workforce plans, designs, builds, and operates an…
Added 13 hours ago
SO
Highway Maintenance Worker 2 | Multiple Positions
State of Washington
Seattle, WA
- $5,066.83 to $6,817.17 USD / month
Washington State Department of Transportation (WSDOT) is a multimodal organization with a global reputation for excellence! Our dedicated workforce is responsible to plan, design, build,…
Added 13 hours ago
SO
IT Customer Support – Entry | Project
State of Washington
Shoreline, WA
- $5,621.67 to $7,563.08 USD / month
The Washington State Department of Transportation (WSDOT) is a multimodal agency with a global reputation for excellence. Our dedicated workforce plans, designs, builds, and operates an…

SpaceXAI

Software Engineer, Pretraining Data

Palo Alto, CA, United States

$160,000 - $250,000 USD

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Job details

Pay: $160,000 - $250,000 USD
Experience: Minimum of 3 years of software engineering experience
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.

SOFTWARE ENGINEER, PRETRAINING DATA

We're looking for Software Engineers to build the data systems behind our frontier models' initial training. You'll work on large-scale crawling, data platform, and pipeline infrastructure, turning raw dumps into the datasets our models train on, and making iteration with researchers fast and reliable.

RESPONSIBILITIES:

Data Platform:

Build the platform that turns raw web, code, multimodal, and acquired data into training-ready datasets for frontier pretraining runs
Own the pipelines, orchestration, and tooling that make pretraining data iteration fast, reliable, observable, and reproducible at scale
Create clear signals for data quality, lineage, freshness, and pipeline health so researchers can trust what goes into each run
Partner with initial training, crawling, data quality, and acquisition teams to turn new data ideas into measurable improvements in loss, evals, and model capability

Data Quality:

Build and own high-throughput, fully telemetered data pipelines that process frontier-scale data with end-to-end traceability. If something breaks or drifts, your systems will tell us before the training run does
Train and ship models that classify, rank, filter, clean, and identify data at extreme throughput. These models have to be both accurate and fast enough to sit in the critical path without becoming the bottleneck
Design and run scaling-ladder experiments on data-mixture, repeatability, and quality depth that turn "this dataset feels good" into hard evidence the training team can trust
Partner tightly with Data Acquisition to hunt down missing or low-quality sources, and with the training teams to close the loop on what actually moves loss and downstream evals
Treat data quality as a systems problem and a research problem. You will write performance-critical code one week and design careful experiments the next

Crawling:

Build and scale the web crawling systems that discover, schedule, fetch, and parse high-quality documents across the open web for initial training
Improve URL seeding, scoring, and fair host scheduling so crawl capacity lands on the hosts and pages that matter most for model quality
Raise crawl success and parsing quality, defeating antibot failures, improving extractors, and capturing content we previously could not get cleanly
Debug and harden complex crawl infrastructure end-to-end for availability, recovery, and ingestion lag, and automate delivery of crawl datasets into the data pipeline
Work independently (and alongside AI agents) and partner with Data Quality and Data Platform so new coverage shows up as better tokens in training runs

BASIC QUALIFICATIONS:

Minimum of 3 years of software engineering experience
Software engineering experience building distributed systems and/or large-scale data infrastructure

PREFERRED SKILLS AND EXPERIENCE:

High-slope engineer who has moved unusually fast (e.g., staff-level ownership within a few years) or brings relevant domain experience
Able to architect and ship end-to-end with high ownership, debug complex systems independently, and work alongside AI agents
Strong intuitions about large-scale distributed systems
Excited to learn how pre-training data shapes model quality, and want the ownership and visibility that comes with building systems that feed frontier training runs

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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