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Senior Engineer, Business Intelligence
Walton Enterprises
Bentonville, AR
Walton Enterprises is seeking a skilled, highly motivated and entrepreneurial individual to join the team as a Senior Engineer, Business Intelligence. The ideal teammate will have the…
Added 1 min ago
Engineer Senior Principal – Space Vehicle Systems / Simulators
BAE Systems
Boulder, CO
Job Description Our Aerospace & Mission Systems (AMS) division is seeking a Principal Systems/Software Engineer to join our Space Vehicle Simulator team. In this role, you will work at the…
Added 1 min ago
Electrical Engineer
Arup
Houston, TX · Austin, TX
· Support the design of electrical systems for projects, including power distribution system, lighting, fire alarm, grounding and bonding, lightning protection.
Added 1 min ago
BIM Intern (Summer 2027)
Arup
New York, NY · Newark, NJ
Develop engineer’s concepts and sketches into accurate models and drawings, through direct communications
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Senior Product Operations Engineer, Space
Anduril Industries
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 1 min ago
Senior DevOps Engineer, Space
Anduril Industries
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 2 mins ago
Senior BIM Designer
Arup
San Francisco, CA
Develop civil engineer’s concepts and sketches into accurate models and drawings, through direct communications
Added 2 mins ago
Infrastructure Materials Specialist
Arup
New York, NY · Newark, NJ · Washington, DC
…and Research (STAR) team. We are looking for someone who can support project delivery as a specialist in infrastructure materials – particularly steel, other metals, and reinforced concrete…
Added 2 mins ago
Mechanical Engineering Intern (Available 2027)
Arup
Dallas, TX
Our team consists of more than 20 mechanical engineers who support a diverse portfolio of projects across the healthcare, commercial properties, and data center sectors. We provide HVAC…
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Graduate Environmental and Building Physics Engineer (Available 2027)
Arup
Los Angeles, CA
…Development Goals, we create and contribute to equitable spaces and systems, while cultivating a sense of belonging for all. Our internal employee networks support our inclusive culture:…
Added 2 mins ago
Graduate Environmental and Building Physics Engineer (Available 2027)
Arup
Los Angeles, CA
…Development Goals, we create and contribute to equitable spaces and systems, while cultivating a sense of belonging for all. Our internal employee networks support our inclusive culture:…
Added 2 mins ago
High Voltage Electrical Engineering Intern (Summer 2027)
Arup
Houston, TX
In pursuit of a Bachelor's degree in an Electrical or Computer Engineer with focus on Power System and basic knowledge of power systems, renewable energy technologies, and energy storage…
Added 2 mins ago
ITS Engineer
Arup
Seattle, WA
Our Americas region at Arup is seeking a talented and motivated Intelligent Transportation Systems (ITS) Engineer with one to four years of relevant experience. The successful candidate…
Added 2 mins ago
Senior Electrical Engineer
Arup
Dallas, TX
Our Dallas office is looking for a Senior Electrical Engineer to join our multi-disciplinary team. If you are an electrical engineer who wants to take the lead on exciting projects, expand…
Added 2 mins ago
Senior Electrical Engineer
Arup
Houston, TX
Our office is looking for a Senior Electrical Engineer to join our multi-disciplinary team. If you are an electrical engineer who wants to take the lead on exciting projects, expand their…
Added 2 mins ago
Substation Structural Engineering Leader
Arup
Houston, TX
…requirements. The successful candidate should be capable of serving as Engineer of Record (EoR) for substation projects and will provide dedicated technical leadership as we establish and…
Added 2 mins ago
Senior Hydrogeologist / Geothermal Specialist
Arup
New York, NY · Boston, MA · Washington, DC
Support the planning and design of Geoexchange/Ground Source Heat Pump systems, involving the assessment of subsurface conditions, groundwater characteristics and geothermal potential.
Added 2 mins ago
Senior Geotechnical Engineer
Arup
New York, NY · Boston, MA
We are looking for a Senior Geotechnical Engineer to join our Americas East Infrastructure team, with a strong emphasis on technical geotechnical design, analysis, interpretation, and…
Added 2 mins ago
Resilience Engineer Intern (Summer 2027)
Arup
San Francisco, CA
…Development Goals, we create and contribute to equitable spaces and systems, while cultivating a sense of belonging for all. Our internal employee networks support our inclusive culture:…
Added 2 mins ago
Presales Application Engineer
Arup
Los Angeles, CA
We are seeking a Presale Application Engineer to support and grow our Oasys software business in the Americas. Applying industry knowledge and software expertise, you will offer technical…
Added 2 mins ago
Geotechnical Engineer
Arup
New York, NY
We are looking for a Geotechnical Engineer to join our Americas East Infrastructure team, with a strong emphasis on technical geotechnical design, analysis, interpretation and delivery. The…
Added 2 mins ago
Senior Structural Engineer
Arup
Houston, TX · Austin, TX · Dallas, TX
We are seeking a Senior Structural Engineer to work in our Structural Engineering team within a growing multidisciplinary team engaged in the design of a variety of building projects,…
Added 2 mins ago
AI/ML Engineer
Arup
New York, NY
…infrastructure and cities of the future to improving how critical systems operate…
Added 2 mins ago
Signaling & Train Control Engineer
Arup
Sacramento, CA
Given our growing business, Arup is looking for a Signaling & Train Control Engineer based in our West Geography (Sacramento). You will be a key member of Arup’s engineering team in…
Added 2 mins ago
Senior Protection & Control Setting Engineer
Arup
Houston, TX
We are seeking a Senior Protection & Control Settings Engineer with technical experience in the application of protection settings for HV substations for power utilities and for the…

Crusoe

Senior Staff Software Engineer, AI Model Lifecycle

San Francisco, CA, United States
Sunnyvale, CA, United States

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Job details

Experience: 4-5+ years of industry experience leading and driving impactful projects in the AI Space
Posting language: English
Posted: Nov 6, 2026

Original job description

Crusoe is on a mission to accelerate the abundance of energy and intelligence. As the only vertically integrated AI infrastructure company built from the ground up, we own and operate each layer of the stack - from electrons to tokens - to power the world's most ambitious AI workloads. When you join Crusoe, you join a team that is building the future, faster.

We're in the midst of the greatest industrial revolution of our time. The demand for AI compute is boundless, and power is a bottleneck. We're solving that - with an energy-first approach that makes AI infrastructure better for the world and faster for the people innovating with AI.

We're looking for problem-solving, opportunity-finding teammates with a sense of urgency, who believe in the scale of our ambition and thrive on a path not fully paved - people who want to grow their careers alongside a team of experts across energy, manufacturing, data center construction, and cloud services.

If you want to do the most meaningful work of your career, help our customers and partners advance their AI strategies, and be part of a high-performing team that believes in each other, come build with us at Crusoe.

About This Role:

The Senior Staff Software Engineer for the AI Model Lifecycle team will play a crucial role in building a comprehensive managed platform for the entire application development lifecycle, with a specific focus on leveraging Machine Learning models, including Large Language Models (LLMs).

What You’ll Be Working On:

Manage fine-tuning systems for large foundation models (SFT, PEFT, LoRA, adapters), including multi-node orchestration, checkpointing, failure recovery, and cost-efficient scaling.
Implement and maintain end-to-end training pipelines for Large Language Models.
RFT and Reinforcement learning to the fine tuning and training sections
Distillation and reinforcement learning pipelines (e.g., preference optimization, policy optimization, reward modeling).
Dataset, model, and experiment management: versioning, lineage, evaluation, and reproducible fine-tuning at scale.

What You’ll Bring to the Team:

Advanced degree in Computer Science, Engineering, or a related field.
4-5+ years of industry experience leading and driving impactful projects in the AI Space
Experience in Generative AI (Large Language Models, Multimodal).
Hands-on experience training, fine-tuning, and aligning LLMs using Reinforcement Learning and Reinforcement Fine-Tuning (RFT) techniques.
Proactive and collaborative approach with the ability to work autonomously
Passion for building cutting-edge AI products and solving challenging technical problems.

Bonus Points:

Proficiency in Golang or Python for large-scale, production-level services and PyTorch
Contributions to open-source AI projects such as vLLM or similar frameworks.
Performance optimizations on GPU systems and inference frameworks.

Benefits:

Competitive compensation
Restricted Stock Units
Paid time off & paid holidays
Comprehensive health, dental & vision insurance
Employer contributions to HSA account
Paid parental leave
Paid life insurance, short-term and long-term disability
Professional development & tuition reimbursement
Mental health & wellness support
Commuter benefits (parking & transit)
Cell phone stipend
401(k) Retirement plan with company match up to 4% of salary
Volunteer time off

Compensation Range

Compensation will be paid in the range of up to $250,000 - $300,000 + Bonus. Restricted Stock Units are included in all offers. Compensation to be determined by the applicants knowledge, education, and abilities, as well as internal equity and alignment with market data.

Crusoe is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, disability, genetic information, pregnancy, citizenship, marital status, sex/gender, sexual preference/ orientation, gender identity, age, veteran status, national origin, or any other status protected by law or regulation.

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Skills

Computer science
Work independently
Go
Python
PyTorch

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