Jobs in the United States

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Added 43 mins ago
S
Electrical Engineer
Subsense
Mountain View, CA
- $90,000 to $110,000 USD / year
This role offers an opportunity for an early-career engineer to gain hands-on experience across electrical engineering, biomedical instrumentation, and multidisciplinary system development.…
Added 50 mins ago
Linux Software Engineer
Kastel Staffing
Huntsville, AL
We are seeking a UAS Linux Software Engineer to develop, integrate, and maintain the core software components that run on our drone platforms. This role focuses on the Linux‑based onboard…
Added 50 mins ago
Senior GNC Engineer
Kastel Staffing
Moorpark, CA
We are seeking a Senior GNC Engineer IV with extensive experience in drone flight dynamics, control theory, state estimation, and autonomous flight systems. In this role, you will lead the…
Added 50 mins ago
Senior GNC Engineer
Kastel Staffing
Huntsville, AL
We are seeking a Senior GNC Engineer IV with extensive experience in drone flight dynamics, control theory, state estimation, and autonomous flight systems. In this role, you will lead the…
Added 58 mins ago
Software System Engineer
The Exploration Company
Houston, TX
We are seeking a highly motivated and experienced Senior Software System Engineer to support the certification activities of the flight software for the Nyx program. You will work in a…
Added 1 hour ago
Sr. Calibration, Mapping & Localization Engineer
42dot
San Francisco
- Diagnose and resolve calibration and localization failures from on-road and simulation testing
Added 1 hour ago
Calibration, Mapping & Localization Engineer
42dot
San Francisco
- Diagnose and resolve calibration and localization failures from on-road and simulation testing
Added 1 hour ago
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Electrical Design Engineer
GPAC
Blytheville, AR
- $80,000 to $110,000 USD / year
Analytical Skills: Ability to utilize simulation tools, perform statistical methods (e.g., FMEA), and conduct thorough failure analysis.
Added 1 hour ago
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Electrical Design Engineer
GPAC
Mena, AR
- $80,000 to $110,000 USD / year
Analytical Skills: Ability to utilize simulation tools, perform statistical methods (e.g., FMEA), and conduct thorough failure analysis.
Added 1 hour ago
Technical Services Engineer
Simr
Remote, United States
…and access controls, troubleshooting cloud infrastructure and simulation applications (L1 & L2 support), HPC tools and network performance issues, and assisting with infrastructure storage…
Added 2 hours ago
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Electrical Design Engineer
GPAC
Little Rock, AR
- $80,000 to $110,000 USD / year
Analytical Skills: Ability to utilize simulation tools, perform statistical methods (e.g., FMEA), and conduct thorough failure analysis.
Added 2 hours ago
Senior Firmware Engineer, Embedded Platform
Firestorm
United States
Firestorm Labs is seeking an experienced and driven Firmware Engineer who has a specialized focus in embedded platforms. In this role, you will support the development, integration, and…
Added 2 hours ago
SRAM Design Lead
Micron Technology
Boise · Albany
Micron is seeking an experienced SRAM Design Engineer to develop high-performance, low-power embedded memory IP and testchip content. This is for advanced semiconductor technologies. The…
Added 2 hours ago
Principal Software Engineer - Simulation Data, Validation & Infrastructure
Irving, TX
…and Physical AI require trusted digital twins, high-fidelity simulation, scalable GPU computing, intelligent automation, and rigorous validation. This Principal Engineer role is a hands-on…
Added 2 hours ago
Principal Software Engineer - Robotics & Physical AI Simulation
Irving, TX
…and Physical AI require trusted digital twins, high-fidelity simulation, scalable GPU computing, intelligent automation, and rigorous…
Added 2 hours ago
Principal Software Engineer - Digital Twin and Simulation Platform
Irving, TX
…and Physical AI require trusted digital twins, high-fidelity simulation, scalable GPU computing, intelligent automation, and rigorous…
Added 2 hours ago
Principal Software Engineer - Agentic AI & Simulation Automation
Irving, TX
…and Physical AI require trusted digital twins, high-fidelity simulation, scalable GPU computing, intelligent automation, and rigorous…
Added 2 hours ago
Design Engineer - Pride
Pride Mobility Products Corp.
Duryea, PA
Added 2 hours ago
Process Engineer
Boose Aluminum Foundry Co., Inc.
Reamstown, PA
…engineering technologies, including automated molding, casting simulation, quality testing, and product development support. Boose is known for its capabilities: product development…
Added 2 hours ago
Electrical Engineer 4
Lam Research
Fremont
Join Lam as an Electrical Engineer and you'll be at the forefront, designing and developing electronic solutions for advanced applications. Your role involves designing and analyzing…
Added 2 hours ago
Sr. Model Engineer, Imagine
SpaceXSI
Palo Alto, CA
As a multimodal engineer on the Imagine Model Team, you will develop cutting-edge AI experiences beyond text, with a strong focus on enabling high-fidelity understanding and generation…
Added 2 hours ago
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Electrical Design Engineer
GPAC
Conway, AR
- $80,000 to $110,000 USD / year
Analytical Skills: Ability to utilize simulation tools, perform statistical methods (e.g., FMEA), and conduct thorough failure analysis.
Added 2 hours ago
IS
Staff Digital Signal Processing Engineer
Impulse Space
Redondo Beach, CA
- $145,000 to $185,000 USD / year
We are seeking a highly skilled Staff DSP Engineer to lead the development, implementation, and verification of advanced signal-processing algorithms for high-performance communication…
Added 2 hours ago
SD
Process Engineer III
Sigma Design
Redmond, WA
- $114,000 to $150,000 USD / year
The Process Engineer III independently designs and optimizes complex manufacturing processes. Sets technical direction for process development projects and serves as a technical resource…
Added 2 hours ago
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Electrical Design Engineer
GPAC
Springdale, AR
- $80,000 to $110,000 USD / year
Analytical Skills: Ability to utilize simulation tools, perform statistical methods (e.g., FMEA), and conduct thorough failure analysis.

SpaceXSI

Sr. Model Engineer, Imagine

Palo Alto, CA, United States

$220,000 - $357,000 USD

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Job details

Pay: $220,000 - $357,000 USD
Posting language: English
Posted: Nov 6, 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. MODEL ENGINEER, IMAGINE

As a multimodal engineer on the Imagine Model Team, you will develop cutting-edge AI experiences beyond text, with a strong focus on enabling high-fidelity understanding and generation across image and video modalities, while also incorporating audio where it enhances visual content (e.g., synchronized audio for video). Responsibilities span data curation, modeling, training, inference serving, and product integration, covering both pre-training and post-training phases. You will collaborate closely with product teams to push model frontiers and deliver exceptional end-to-end user experiences.

RESPONSIBILITIES:

Create and drive engineering agendas to advance multimodal capabilities, with emphasis on image and video generation, editing, understanding, controllable/long-horizon synthesis, agentic planning, RL training, and world simulation (including audio integration for richer video experiences)
Improve data quality through annotation, filtering, augmentation, synthetic generation, captioning, and in-depth data studies, particularly for visual and audio data
Design evaluation frameworks, metrics, benchmarks, evals, and reward models tailored to image/video/audio quality and coherence
Implement efficient algorithms for state-of-the-art model performance, including real-time inference, distillation, and scalable serving for visual content
Develop scalable data collection and processing pipelines for multimodal (primarily image/video-focused) datasets
Collaborate cross-functionally to integrate AI solutions into production and rapidly iterate based on user feedback

BASIC QUALIFICATIONS:

Experience writing production-quality code in Python, PyTorch, JAX, Rust, or C++
Experience in multimodal applications such as graphics engines, rendering techniques, image/video understanding and generation, world models, real-time simulation, or controllable/long-horizon visual content creation

PREFERRED SKILLS AND EXPERIENCE:

Experience in audio/speech processing or music/audio generation experience is a plus where it supports video
Experience in data-driven experiment designs, systematic analysis, and iterative model debugging
Experience developing or working with large-scale distributed machine learning systems
Experience with leading studies that significantly improve neural network capabilities and performance through better data or modeling
Ability to deliver optimal end-to-end user experiences
Hands-on contributor with initiative, excellence, strong work ethic, prioritization skills, and excellent communication
Experience in SFT, RL, evals, human/synthetic data collection, or agentic systems
Proficiency in Python, JAX/XLA, PyTorch, Rust/C++, Spark, Ray, and related large-scale frameworks
Experience with agentic RL training, controllable/long-horizon generation, or multimodal agents that reason and act across modalities (especially in visual domains)

COMPENSATION AND BENEFITS:

$220,000 - $357,000 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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Skills

Editing
BASIC
Python
PyTorch
Rust
C++
Content creation
Debugging
Machine learning
Prioritization
Communication skills
Apache Spark

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