Jobs in the United States

25+ jobs

Save this search

Added just now
Ruby on Rails Engineer
Prospex CRM
Remote, United States
and user experience. We are looking for a strong software engineer who is passionate about building large-
Added just now
Ruby on Rails - Backend Engineer
Prospex CRM
Remote, United States
and user experience. We are looking for a strong software engineer who is passionate about building large-
Added just now
Head of Engineering - Custody
Prospex CRM
United States
7 to 12 years total software engineering, with 4-plus years on a custody platform or key management system at a regulated entity: a custody firm, a regulated digital-asset bank, or a TradFi…
Added just now
Head of Engineering
Prospex CRM
United States
7 to 12 years total software engineering, with 4-plus years on a custody platform or key management system at a regulated entity: a custody firm, a regulated digital-asset bank, or a TradFi…
Added 2 mins ago
ET
Systems Engineer (Remote)
EdgeQ Technologies Private Limited
Remote, United States
- $85,000 to $135,000 USD / year
We are seeking a skilled and motivated Systems Engineer to join our growing technology team. The ideal candidate will be responsible for designing, implementing, maintaining, and optimizing…
Added 2 mins ago
ET
Junior Data Engineer (Remote)
EdgeQ Technologies Private Limited
Remote, United States
- $75,000 to $115,000 USD / year
We are seeking a motivated and detail-oriented Junior Data Engineer to join our data engineering team. The ideal candidate will have a foundational understanding of Python, SQL, ETL…
Added 2 mins ago
ET
Firmware Engineer (US)
EdgeQ Technologies Private Limited
Dallas, TX · New York City, NY · Seattle, WA · San Francisco, CA
- $75,000 to $120,000 USD / year
We are seeking a motivated Firmware Engineer to develop, test, debug, and maintain firmware for embedded devices and connected hardware products. The ideal candidate will have a strong…
Added 2 mins ago
ET
Embedded Software Engineer (US)
EdgeQ Technologies Private Limited
San Jose, CA · Seattle, WA · Washington, DC
- $85,000 to $135,000 USD / year
We are seeking a skilled Embedded Software Engineer to design, develop, test, and maintain software for embedded systems and connected devices. The ideal candidate will have experience in…
Added 2 mins ago
ET
DevOps Engineer (Remote)
EdgeQ Technologies Private Limited
Remote, United States
- $110,000 to $150,000 USD / year
We are seeking a skilled and motivated DevOps Engineer with 2–7 years of professional experience in database management, data modeling, ETL processes, and data quality management.
Added 2 mins ago
ET
Data Engineer (Remote)
EdgeQ Technologies Private Limited
Remote, United States
- $85,000 to $125,000 USD / year
We are looking for a motivated and enthusiastic Data Engineer to join our growing engineering team. This opportunity is open to candidates with 0–5 years of experience, including fresh…
Added 2 mins ago
ET
Cross-Platform Mobile Engineer
EdgeQ Technologies Private Limited
Chicago, IL
- $85,000 to $145,000 USD / year
We are seeking a skilled Cross-Platform Mobile Engineer to design, develop, and maintain high-performance mobile applications for Android and iOS platforms. The ideal candidate will have…
Added 2 mins ago
ET
Build and Release Engineer
EdgeQ Technologies Private Limited
Seattle, WA · New York City, NY
- $100,000 to $165,000 USD / year
We are seeking an experienced Build and Release Engineer to manage, automate, and optimize software build, deployment, and release processes. The ideal candidate will have strong experience…
Added 2 mins ago
ET
Backend Software Engineer
EdgeQ Technologies Private Limited
Austin, TX
- $85,000 to $115,000 USD / year
We are looking for a skilled and motivated Backend Software Engineer with 1–3 years of experience in developing, maintaining, and optimizing backend applications. The ideal candidate should…
Added 2 mins ago
ET
API Development Engineer
EdgeQ Technologies Private Limited
Florida City, FL · Texas City, TX
- $95,000 to $155,000 USD / year
The candidate will work closely with software engineers, architects, and product teams to develop reliable API solutions that support business applications and enterprise systems.
Added 2 mins ago
ET
AI Engineer (US)
EdgeQ Technologies Private Limited
San Francisco, CA
- $100,000 to $180,000 USD / year
We are seeking a talented and motivated AI Engineer to design, develop, and deploy AI-powered applications using Python, Large Language Models (LLMs), Retrieval-Augmented Generation (RAG),…
Added 2 mins ago
ET
AI Engineer (Remote)
EdgeQ Technologies Private Limited
Remote, United States
- $110,000 to $150,000 USD / year
We are looking for a talented and motivated AI Engineer with 1–5 years of professional experience to join our growing engineering team.
Added 5 mins ago
Cloud Systems & Endpoint Engineer
TMRW Sports Inc
Orlando, FL
We’re looking for a hands-on Cloud Systems & Endpoint Engineer who combines strong technical skills with a service-oriented approach to solving complex problems.
Added 8 mins ago
Software Engineer, Fleet Systems
Humble Robotics
United States
We're looking for an experienced software engineer to develop, deploy, and improve the software powering our autonomous vehicle fleet. You'll work across the onboard software stack,…
Added 13 mins ago
Principal Software Engineer, Onsite
RTX
United States
Collins Aerospace is seeking a qualified Principal Software Engineer to support the Joint Precision Approach and Landing System (JPALS) program.
Added 13 mins ago
Display Electrical Engineer 1 (Onsite)
RTX
United States
You will work closely with other engineering disciplines (ie. mechanical and systems engineering) to ensure electrical design is appropriate for the given application.
Added 13 mins ago
Senior Mechanical Engineer
RTX
United States
The Airborne Radar Mechanical Design Department is currently seeking a Principal Mechanical Engineer for the Receiver & Electronic Packaging Section in El Segundo, CA.
Added 13 mins ago
Infrastructure Engineer I (Onsite)
RTX
United States
Typical job functions for the Infrastructure Engineer I include participation on collaborative, cross-disciplined integrated product teams, often employing agile software development…
Added 13 mins ago
CO
Assistant Director, Watershed Protection - Modeling, Monitoring, and Compliance (MMC)
City of Austin
United States
- $194,000 to $204,000 USD / year
…was established in 1996 to manage the City’s creeks, drainage systems and water quality…
Added 16 mins ago
Lead Agentic AI Offensive Security Engineer
Hewlett Packard Enterprise
Spring, TX · San Jose, CA · Durham, NC · Andover, MA · Fort Collins, CO · Frisco, TX
10+ years of experience in software, platform, distributed-systems, or AI engineering, with demonstrated technical leadership on production systems.
Added 16 mins ago
Principal Agentic AI Security Engineer
Hewlett Packard Enterprise
Spring, TX · San Jose, CA · Frisco, TX · Ft. Collins, CO · Alpharetta, GA · Durham, NC
The Agentic AI Engineer is responsible for designing, building, and operating production-grade agentic systems that combine foundation models, software services, enterprise data, tools, and…

SpaceXSI

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

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

$200,000 - $375,000 USD

Apply About employer

Applications open in a new tab.

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.

Apply About employer

More about this job

Skills

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

Report this job