Building and maintaining high-performance infrastructure for large-scale LLM training, reinforcement learning, and inference, including distributed runtimes and GPU cluster scheduling.
Locations (2)
New York City, New York, United States
Paris, Île-de-France, France
Responsibilities
Design, build, and operate distributed training and inference infrastructure for large language models, including Mixture-of-Experts models
Scale training with parallelism strategies (data, tensor, pipeline, and expert), memory optimization, checkpointing, and failure recovery
Build inference and rollout systems that support evaluation, experimentation, and RL without slowing down training
Build execution environments and sandboxes for online RL and agent post-training
Own continuous performance validation: regular benchmarks of rollout speed, training throughput, and learning behavior
Lead the design, development, and maintenance of Unity’s AI asset creation APIs and SDKs, ensuring secure, reliable, and observable backend services while collaborating with partners and internal teams to advance generative AI capabilities for game developers.
Compensation
Base Salary Range: We determine the base salary range for this role based on your primary work location:
Zone A: $157,800 - $236,800 USD gross
Zone B: $178,300 - $267,500 USD gross
Zone C: $200,400 - $300,600 USD gross
Responsibilities
Own the shared API and SDK layer consumed by Unity products
Ensure backend services are secure, reliable, and observable
Develop and maintain new integrations with partners
Set patterns and practices for AI-assisted development
Support and improve CI, release, and incident management processes
Lead cross‑team technical initiatives, drive consensus on architectural designs and implementation strategies, and mentor engineering staff while shaping platform engineering initiatives.
Locations (2)
Montreal, Quebec, Canada
United States
Compensation
Zone A : de 153 000 $ CA à 229 600 $ CA brut
Zone B : de 165 400 $ CA à 248 000 $ CA brut
Zone A : de 157 800 $ US à 236 800 $ US brut
Zone B : de 178 300 $ US à 267 500 $ US brut
Zone C : de 200 400 $ US à 300 600 $ US brut
Mid-level Software Engineer with strong software testing experience to join the Science User Applications Group to build and maintain user-facing software like the NRAO Science Archive.
Locations (4)
Albuquerque, New Mexico, United States
Socorro, New Mexico, United States
Charlottesville, Virginia, United States
Green Bank, West Virginia, United States
Compensation
The starting salary of this position is between $96,588 and $120,000.
Responsibilities
Designing, building, and maintaining a robust, automated test infrastructure covering unit, integration, and end-to-end testing
Develop highly reliable software solutions that are used across SpaceX and create new applications that improve how SpaceX operates.
Compensation
Pay Range:
Sr. Software Engineer: $165,000.00 - $230,000.00/per year
Your actual level and base salary will be determined on a case‑by‑case basis and may vary based on the following considerations: job‑related knowledge and skills, education, and experience.
Base salary is just one part of your total rewards package at SpaceX. You may also be eligible for long‑term incentives, in the form of company stock, stock options, or long‑term cash awards, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan.
Responsibilities
Develop highly reliable software solutions that are used across SpaceX
Create new applications that improve how SpaceX operates
Build prototypes to prove out key design concepts and quantify technical constraints
Own all aspects of software engineering and product development
Deep dive into your users’ problems to find and create efficient solutions
Requirements
Bachelor's degree in computer science, engineering, math, or scientific discipline
Develop highly reliable software solutions that are used across SpaceX and create tooling to enable safe and efficient spacecraft operations.
Compensation
Pay Range:
Level 1: $125,000.00 - $160,000.00
Level 2: $145,000.00 - $195,000.00
Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience.
Responsibilities
Develop highly reliable software solutions that are used across SpaceX
Create new applications that improve how SpaceX operates
Build prototypes to prove out key design concepts and quantify technical constraints
Own all aspects of software engineering and product development
Deep dive into your users’ problems to find and create efficient solutions
Requirements
Bachelor's degree in computer science, engineering, mathematics, or a related scientific discipline; OR 2+ years of professional experience building software in lieu of a degree
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