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Software Engineer Lead
Jobgether
Remote, United States
- $105,000 to $135,000 USD / year
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Software Engineer Lead based in the United States.
Added just now
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Senior Machine Learning Engineer, Inference
Jobgether
Remote, United States
- $250,000 to $300,000 USD / year
…language model (LLM) technology. As a Senior Machine Learning Engineer, you will own inference optimization from research through production deployment, helping bring sophisticated models…
Added 4 mins ago
Principal Electrical Engineer
Oracle
Santa Clara, CA · Burlington, MA
Oracle's Hardware Development Organization seeks to add an experienced On-Board Power Engineer to work within our Server Development team in Santa Clara, California or in Burlington MA. As…
Added 4 mins ago
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Senior Network Developer
Oracle
Seattle, WA · Nashville, TN · Redwood City, CA · Santa Clara, CA · Reston, VA
- $91,400 to $187,000 USD / year
As a Sr Network Development Engineer, you will be responsible for helping design, build, test, deploy and operate highly scalable solutions to support Oracle’s next-generation Cloud…
Added 7 mins ago
IS
Chalk Bluff - Advanced Solar Technician
Invenergy Services LLC
Heth, AR
- $41.51 to $49.97 USD / hour
Invenergy is North America’s largest privately held developer, owner, and operator of power infrastructure. With 25 years of trusted execution, we deliver reliable, affordable energy…
Added 17 mins ago
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Engineer, Water Resources
Department of Water Resources
CA
- $6,488 to $12,152 USD / month
…Valley Project (CVP) as well as much of the water resources infrastructure in the Central Valley of California and Sacramento-San Joaquin Delta region. Central Valley Modeling Section (CVM)…
Added 19 mins ago
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Sr Civil Track Engineer
AECOM
Fresno, CA
- $90,000 to $160,000 USD / year
Under the direction of the Rail Infrastructure Manager, the Senior Track & Civil Engineer provides advanced engineering support for track and civil infrastructure design & construction and…
Added 19 mins ago
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Sr Civil Track Engineer
AECOM
Bakersfield, CA
- $90,000 to $160,000 USD / year
Under the direction of the Rail Infrastructure Manager, the Senior Track & Civil Engineer provides advanced engineering support for track and civil infrastructure design & construction and…
Added 19 mins ago
A
Sr Civil Track Engineer
AECOM
Sacramento, CA
- $90,000 to $160,000 USD / year
Under the direction of the Rail Infrastructure Manager, the Senior Track & Civil Engineer provides advanced engineering support for track and civil infrastructure design & construction and…
Added 19 mins ago
A
Mid-Level Civil Construction Engineer (4 years experience required)
AECOM
Fresno, CA
- $80,000 to $140,000 USD / year
…helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for…
Added 19 mins ago
A
Mid-Level Civil Construction Engineer (4 years experience required)
AECOM
Bakersfield, CA
- $80,000 to $140,000 USD / year
…helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for…
Added 19 mins ago
A
Mid-Level Civil Construction Engineer (4 years experience required)
AECOM
Sacramento, CA
- $80,000 to $140,000 USD / year
…helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for…
Added 19 mins ago
A
Railroad Bridge Engineer
AECOM
Sacramento, CA
- $140,000 to $240,000 USD / year
…specifications, design standards, and regulatory requirements. The Engineer serves as the primary technical liaison among design consultants, construction management, contractors, and…
Added 19 mins ago
A
Railroad Bridge Engineer
AECOM
Fresno, CA
- $140,000 to $240,000 USD / year
…specifications, design standards, and regulatory requirements. The Engineer serves as the primary technical liaison among design consultants, construction management, contractors, and…
Added 19 mins ago
A
Railroad Bridge Engineer
AECOM
Bakersfield, CA
- $140,000 to $240,000 USD / year
…specifications, design standards, and regulatory requirements. The Engineer serves as the primary technical liaison among design consultants, construction management, contractors, and…
Added 19 mins ago
A
Civil Construction Engineer (2 years of experience required)
AECOM
Bakersfield, CA
- $80,000 to $120,000 USD / year
…helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for…
Added 19 mins ago
A
Civil Construction Engineer (2 years of experience required)
AECOM
Fresno, CA
- $80,000 to $120,000 USD / year
…helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for…
Added 19 mins ago
A
Civil Construction Engineer (2 years of experience required)
AECOM
Sacramento, CA
- $80,000 to $120,000 USD / year
…helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for…
Added 19 mins ago
Data Center Electrical Engineer
Google
Bridgeport, CT
With your technical expertise, you ensure compliance with codes and standards, develop infrastructure improvements and serve as an expert in your specialty (e.g., cooling, electrical).
Added 19 mins ago
Hardware/Software Co-Design Engineer, Inference
Google
Sunnyvale, CA
…high-performance, and power-efficient accelerators.The AI and Infrastructure team is redefining what’s possible. We empower Google customers with breakthrough capabilities and insights by…
Added 23 mins ago
AT
Network Infrastructure Engineer II
Akamai Technologies, Inc.
Cheyenne, WY
- $83,200 to $149,800 USD / year
As a Network Infrastructure Engineer II, you will oversee operations in our global data centers. You will monitor and maintain our data centers, networks, and servers worldwide. You will…
Added 23 mins ago
Mainframe Technical Engineer
Highmark Health
Cheyenne, WY
…z/OS, SMP/E, COUPLING FACILITY technical ecosystem including infrastructure, systems, networks, applications, integrations, etc. They will work closely with other technical professionals,…
Added 23 mins ago
Software Engineer, Infrastructure - Central Growth
Meta
Cheyenne, WY
Software Engineer, Infrastructure - Central Growth Responsibilities:
Added 23 mins ago
Senior Network Engineer
Cognizant
Cheyenne, WY
Cognizant is seeking a Senior Network Engineer to design, implement, secure, operate, and optimize enterprise datacenter, campus, branch, wireless, and hybrid-cloud networks. This role…
Added 24 mins ago
Mainframe Storage Engineer (Entry Level)
CGI
Durham, NC
CGI Federal is seeking a Mainframe Storage Engineer to support the Social Security Administration (SSA) in maintaining and enhancing its enterprise mainframe storage environment. The…

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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