Senior Staff Software Engineer AI Model Lifecycle
Crusoe is an AI infrastructure company that designs, builds, and operates AI data centers and a cloud platform. It provides managed AI services, GPU compute, model fine-tuning and inference, and infrastructure operations for organizations building and deploying AI workloads.
Maintainer signals as of 8/14/2026
Funding history
Projects
About Crusoe
Crusoe, the AI factory company, provides Crusoe Cloud and Crusoe Intelligence Foundry for AI development and production. Its offerings include managed inference, serverless fine-tuning, high-performance NVIDIA and AMD compute, accelerated storage, RDMA networking, managed Kubernetes and Slurm, and operations tooling. The company also designs, builds, and operates modular AI data-center infrastructure using an energy-first approach, serving customers that need scalable training, inference, and AI platform infrastructure.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will build a managed platform for the AI application development lifecycle. You will manage fine-tuning systems and training pipelines for large foundation models, support multi-node orchestration and failure recovery, develop reinforcement learning and distillation workflows, and manage datasets, models, experiments, evaluations, and lineage.
Requirements
- Advanced degree in Computer Science, Engineering, or a related field
- 8+ years of industry experience leading impactful AI projects
- Experience in Generative AI, large language models, and multimodal models
- Hands-on experience training, fine-tuning, and aligning LLMs with reinforcement learning and reinforcement fine-tuning
- Proficiency in Golang or Python
- Proficiency with PyTorch
Responsibilities
- Manage fine-tuning systems for foundation models
- Orchestrate multi-node training and checkpointing
- Implement end-to-end LLM training pipelines
- Develop reinforcement learning and reinforcement fine-tuning workflows
- Build distillation and preference or policy optimization pipelines
- Manage dataset, model, and experiment versioning
- Maintain lineage and evaluation systems
- Enable reproducible fine-tuning at scale
Benefits
- Restricted Stock Units
- Paid time off
- Paid holidays
- Comprehensive health insurance
- Dental insurance
- Vision insurance
- Employer HSA contributions
- Paid parental leave
- Paid life insurance
- Short-term disability insurance
- Long-term disability insurance
- Professional development
- Tuition reimbursement
- Mental health and wellness support
- Commuter benefits
- Cell phone stipend
- 401(k) retirement plan with company match up to 4% of salary
- Volunteer time off