Jobs in the United States

25+ jobs

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Added 1 min ago
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Bridge Design Engineer
GPAC
Orlando, FL
- $85,000 to $120,000 USD / year
Structural Design & Analysis – Perform precise calculations for bridge systems, combining hand methods with advanced software to guarantee safety and performance.
Added 1 min ago
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Drainage Engineer
GPAC
Seattle, WA
- $100,000 to $150,000 USD / year
Tackle everything from localized drainage improvements to complex stormwater systems, hydraulic structures, and watershed challenges.
Added 2 mins ago
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Staff Software Engineer, Full Stack
Gridware
San Francisco, CA
- $245,000 to $260,000 USD / year
We’re seeking a Staff Software Engineer who will serve as a technical force multiplier and elevate the entire software engineering organization through architectural excellence, mentorship,…
Added 10 mins ago
Cloud Efficiency Engineer (AWS/FinOps)
Buildkite
United States
Buildkite's CI platform is trusted by the world's leading engineering teams, helping ship software used by more than 1 billion people every day. Companies including Canva, Meta, Mistral AI,…
Added 11 mins ago
Principal Software Engineer
DriveTime
Tempe, AZ
In short, as a Principal Software Engineer, you will serve as a technical leader responsible for driving complex, business-critical initiatives across the organization. You will partner…
Added 11 mins ago
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Structural Steel Engineering Manager
GPAC
Winston Salem, NC
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 11 mins ago
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Structural Steel Engineering Manager
GPAC
Atlanta, GA
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 11 mins ago
Senior Vehicle Power Electronics Engineer
Anduril Industries
Santa Ana, CA · Costa Mesa, CA
…companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s family of systems is powered by Lattice OS, an AI-powered operating…
Added 11 mins ago
Flight Test Engineer - Space Systems
Anduril Industries
Costa Mesa, CA
We are seeking a highly motivated and experienced Flight Test Engineer with a focus on developmental testing of a full range of Sub-sonic to Hypersonic systems. You will collaborate closely…
Added 11 mins ago
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Structural Steel Engineering Manager
GPAC
Charlotte, NC
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 12 mins ago
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Structural Steel Engineering Manager
GPAC
El Paso, TX
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 12 mins ago
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Structural Steel Engineering Manager
GPAC
Pasadena, TX
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 12 mins ago
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Structural Steel Engineering Manager
GPAC
Houston, TX
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 12 mins ago
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Structural Steel Engineering Manager
GPAC
Lubbock, TX
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 12 mins ago
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Structural Steel Engineering Manager
GPAC
Katy, TX
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 12 mins ago
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Structural Steel Engineering Manager
GPAC
Killeen, TX
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 12 mins ago
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Structural Steel Engineering Manager
GPAC
Corpus Christi, TX
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 12 mins ago
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Structural Steel Engineering Manager
GPAC
Dallas, TX
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 12 mins ago
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Structural Steel Engineering Manager
GPAC
Austin, TX
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 12 mins ago
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Structural Steel Engineering Manager
GPAC
The Woodlands, TX
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 12 mins ago
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Structural Steel Engineering Manager
GPAC
Galveston, TX
- $90,000 to $125,000 USD / year
…streamlined project completion process than standard project delivery systems . Our extensive experience in the industry allows us to work hand in hand with the Architect and Engineer of…
Added 15 mins ago
Software Development Engineer II, KMS
Amazon Development Center U.S., Inc.
Seattle, WA
Are you excited about building software that operates at massive scale and directly impacts millions of customers? As a Software Development Engineer II at Amazon, you will design,…
Added 15 mins ago
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HVAC Mechanical Design Engineer
GPAC
Minneapolis, MN
- $85,000 to $120,000 USD / year
I have a client in the Twin Cities adding an HVAC Mechanical Design Engineer to design systems for commercial, healthcare, education and industrial projects.
Added 18 mins ago
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Senior Software Engineer (Quality, Health Records)
Whoop
Boston, MA
- $150,000 to $215,000 USD / year
As a Senior Software Engineer you will own quality engineering for Health Records while building shared data-mocking capabilities that support teams across WHOOP.
Added 18 mins ago
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Lead Principal Software Engineer, Core Infrastructure
Oracle
Nashville, TN
- $146,300 to $306,400 USD / year
As a Consulting Member of Technical Staff, you will own the software design and development for major components of Oracle's Cloud Infrastructure. You should be both a rock-solid lead…

SpaceXSI

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

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

$220,000 - $357,000 USD

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Job details

Pay: $220,000 - $357,000 USD
Experience: 5+ years of experience with low-level system programming experience in C/C++ or Rust
Posting language: English
Posted: Nov 5, 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:

$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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