Principal AI Engineer

Requirements:

• Excellent software engineering skills, with experience in Python, Rust, and/or C++.
• Experience pre-training and post-training modern AI architectures, including transformers, encoders, decoders, and diffusion models.
• Real-world experience with distributed systems and concurrency.
• Experience with reinforcement learning, simulation, and/or synthetic data generation.
• Prior experience managing, scaling, and delivering high-quality AI/ML projects on time.
• MS or PhD in Computer Science, Electrical Engineering, Computer Engineering, Mathematics, Physics, or a related field.
• Full-time, on-site presence at our San Diego, California office is required.
• Willingness to travel up to 10%.

Responsibilities:

• Design and advance AI models and system innovations in collaboration with Product Management, Software Engineering, and Pre-Sales teams, supporting high-quality performance and delivery.
• Develop LLMs to address customer business problems in areas such as fraud, collections, financial services operations, and financial education software.
• Implement novel architectures, including transformers, and optimize distributed training pipelines using PyTorch and CUDA for efficient pre-training and post-training.
• Build domain-specific datasets and business-relevant benchmarks.
• Communicate with senior stakeholders, both internally and externally.
• Analyze large historical datasets hands-on to identify effective modeling techniques, applying a range of algorithms, modeling processes, and advanced machine learning methods.
• Guide and mentor scientists in their career development.
• Promote innovation and growth in new and existing products by developing and advancing refined ideas.

Technologies:

• AI
• CUDA
• Machine Learning
• PyTorch
• Python
• Rust
• Support

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We are hiring a Principal AI Engineer to advance AI models and systems for customer-focused applications. The role is based full-time on-site at our office in San Diego, California, with travel of up to 10%.

last updated 43 week of 2026