Jobs in the United States

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US - Electrical Engineer - G00546
Manpower Engineering
Arvada, CO
- Up to $150 USD / hour
Our client, a leading aerospace and defense technology organization, is seeking a Electrical Engineer to join their team. As an Electrical Controls Engineer, you will be part of the…
Added 1 min ago
Lead Civil Engineer (Hydraulic)
U.S. Army Corps of Engineers
New Orleans, LA
Summary About the Position: Serves as a Civil Engineer with expertise in Coastal Engineering for the New Orleans District of USACE. Ensures that the organization's strategic plan, mission,…
Added 1 min ago
Electrical Superintendent-Distribution (Bird Electric) Job Details | Black & Veatch Family of Companies
Black & Veatch
New Orleans, LA
Added 1 min ago
Power Platforms Mid Engineer
Serco
Baton Rouge, LA
Serco is looking for an experienced and enthusiastic Microsoft Power Platform Engineer capable of understanding technical details across a wide variety of disciplines to join our Maritime…
Added 1 min ago
Senior Analyst, Compliance Technology
Coinbase
Baton Rouge, LA
We're hiring an Analytics Engineer to join the Compliance Technology team within the Platform organization. This team builds and operates data and detection capabilities that enable…
Added 1 min ago
Senior Business Intelligence Engineer
Humana
Baton Rouge, LA
The Senior Business Intelligence (BI) Engineer engages with business value streams on diverse and complex opportunities leveraging a variety of technology platforms. The individual will…
Added 1 min ago
Software Engineer II - Marketplace Efficiency (Bidding)
Indeed
Baton Rouge, LA
As a Software Engineer II at Indeed, you will design and build software that powers shared platforms, services, and products used across the company. You'll work on systems that operate at…
Added 1 min ago
Sr Site Reliability Engineer -Remote US
SitusAMC
Baton Rouge, LA
Improve observability aspects end to end of the Applications running in Cloud
Added 1 min ago
Frontend Engineer
GN Hearing
Baton Rouge, LA
Help create seamless digital experiences that support people on their hearing journey. As a Frontend Engineer , you will build and evolve customer-facing web experiences for Jabra Enhance,…
Added 1 min ago
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Lead Data Engineer-Snowflake
Cognizant
Baton Rouge, LA
- $115,000 to $135,000 USD / year
As a Lead Data Engineer – Snowflake , you will make an impact by designing and delivering scalable, high-performance data solutions that enable critical business insights and operational…
Added 1 min ago
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Senior QA Automation Engineer - Playwright & Selenium
Cognizant
Baton Rouge, LA
- $50,000 to $92,500 USD / year
We are seeking a Senior QA Automation Engineer - Playwright & Selenium to join our Quality Engineering team supporting critical financial applications. The ideal candidate will have strong…
Added 1 min ago
Core Senior .NET Software Engineer
Evolent
Baton Rouge, LA
The Senior Software Engineer leads the design, development, and deployment of complex software solutions, ensuring scalability and maintainability. This role architects and implements…
Added 1 min ago
Software Engineer II
Amentum
Baton Rouge, LA
The Software Engineer II will perform full stack development with C# program, ReactJS, MVC, Linq, and rest API development in NET Core platform. This position is US remote teleworking…
Added 5 mins ago
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AI Forward Deployed Engineer
Harper
San Francisco, CA
- $140,000 to $230,000 USD / year
…round, we're looking for an exceptional AI Forward Deployed Engineer who can rapidly solve business problems and deliver immediate value across growth, sales, operations, and customer…
Added 7 mins ago
PC
IT Security & Infrastructure Engineer
Pacific Clinics
Arcadia, CA
- $87,423 to $107,519 USD / year
Works within the vision, mission and philosophy of the agency. Under the direction of IT leadership, the IT Security & Infrastructure Engineer this is a mid-level role split evenly between…
Added 10 mins ago
Forward Deployed Engineer
Edgescale AI
Denver, CO
We’re looking for a Forward Deployed Engineer (FDE) to accelerate the application of AI in real-world environments by embedding with customers and partners to deliver high-impact…
Added 10 mins ago
Core Engineer - Software / Applied AI (Multiple Levels)
Edgescale AI
Denver, CO
We’re looking for a Core Engineer focused on Software / Applied AI to build the production AI capabilities that make our edge platform scalable, reliable, and repeatable.
Added 10 mins ago
AI Engineer Internship (UNPAID)
Holiday World
Remote, United States
…and want to enhance their skills in building real-world AI applications with a focus on NLP, computer vision, recommendation systems, and generative AI. As an AI Engineer Intern, you will…
Added 12 mins ago
Sr. Engineer High Voltage Design
New Purpose Recruitment
Huntersville, NC
We are currently supporting a client on a Direct Hire opportunity for a Sr. Engineer High Voltage Design in Huntersville, NC.
Added 13 mins ago
VP of Power Origination
Deca
San Francisco, CA
…flight and a pipeline of 5+ GW across the United States. Our vision is a 10+ GW portfolio of powered land and the vertical infrastructure on top of…
Added 15 mins ago
BS
Technical Engineering Lead
Bubble Sort Recruiting
New York City, NY
- $175,000 to $200,000 USD / year
…engineering hire, the Head of Engineering will own the technical vision and execution for the company’s core product: a member-facing web application that intelligently recommends the…
Added 15 mins ago
BS
Founding Backend Engineer
Bubble Sort Recruiting
San Francisco, CA
- $130,000 to $280,000 USD / year
As a founding engineer, you will play a critical role in building our product and driving the direction of our company.
Added 17 mins ago
Senior Software Engineer (full stack)
IBBX Wireless Energy
United States
…attract, develop, and retain world-class talent aligned with our vision of creating impactful and world-changing…
Added 17 mins ago
Hardware Engineer
IBBX Wireless Energy
United States
…attract, develop, and retain world-class talent aligned with our vision of creating impactful and world-changing…
Added 17 mins ago
RU
SDET Automation Engineer
Randstad USA
Washington, DC
- $50 to $58 USD / hour
Randstad is seeking a Senior SDET Automation Engineer to join a premier client in the Washington, DC area to lead the design, development, and scaling of enterprise-grade test automation…

SpaceXSI

Sr. Software Engineer, Training/Inference (C++)

Palo Alto, CA, United States
Seattle, WA, United States

$200,000 - $375,000 USD

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Job details

Pay: $200,000 - $375,000 USD
Experience: 5+ years of experience with low-level system programming experience in C/C++ or Rust
Posting language: English
Posted: Nov 4, 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. SOFTWARE ENGINEER, TRAINING/INFERENCE (C++)

At SpaceXSI we are building the high-performance inference platform that serves Grok to millions of users every day. As a Software Engineer, Training/Inference (C++), you will design and optimize large-scale model serving systems end-to-end. You will own everything from distributed infrastructure – global KV cache, continuous batching, load balancing, auto-scaling – to deep low-level optimizations, including GPU kernels, quantization, speculative decoding, and tail latency. This is a high-impact role where your work directly determines how fast and reliably users interact with Grok at massive scale.

RESPONSIBILITIES:

Architect and implement scalable distributed infrastructure for model serving (load balancing, auto-scaling, batch scheduling, global KV cache)
Optimize latency and throughput of model inference under real production workloads
Build and operate high-concurrency serving systems with excellent tail latency and high reliability at the scale required to serve millions of users
Benchmark, fine-tune, and accelerate inference engines (including low-level GPU kernel work and code generation)
Develop custom tools to trace, replay, and fix issues across the full stack - from orchestration down to GPU kernels
Create robust CI/CD infrastructure for seamless endpoint deployment, image publishing, and inference engine updates
Accelerate research on scaling test-time compute, RL rollout, and model-hardware co-design for next-generation systems

BASIC QUALIFICATIONS:

Bachelor’s degree in computer science, computer engineering, or science discipline
5+ years of experience with low-level system programming experience in C/C++ or Rust

PREFERRED SKILLS AND EXPERIENCE:

Experience with large-scale, high-concurrent production serving
Experience with GPU inference engines (e.g., vLLM, SGLang, Triton, TensorRT-LLM)
Strong background in system optimizations: batching, caching, load balancing, parallelism
Low-level inference optimizations: GPU kernels, code generation
Algorithmic inference optimizations: quantization, speculative decoding, distillation, low-precision numerics
Experience with testing, benchmarking, and reliability of inference services
Experience designing and implementing CI/CD infrastructure for inference

COMPENSATION AND BENEFITS:

$200,000 - $375,000 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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More about this job

Skills

C++
Scheduling
CI/CD
Research
Model hardware
BASIC
Computer science
Computer engineering
C
Rust

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