Founding AI Engineer: Build Core Production Workflows

Ersilia; San Francisco (CA); Hybrid; USD 170,000 - 210,000; Full time

Benefits offered by this job

Unlimited PTO

Health insurance

Visa sponsorship

Job summary

Ersilia is hiring a world-class Applied AI Engineer to build the core systems behind their automation engine for hardware engineering. You will design, implement, and post-train AI agents powering critical product development workflows for global enterprise customers, integrating into real-world engineering environments.

This deeply technical, high-impact role places you among the first technical hires, owning mission-critical systems end-to-end.

Qualifications

• Bachelor’s or higher in Computer Science, Machine Learning, or equivalent experience.
• Strong familiarity with LLM architectures and agent research trends.
• Excellent programming skills with ML libraries (PyTorch, Hugging Face, W&B).
• Solid practical experience with search and information retrieval.
• Moves fast from idea to production with customer focus.
• Based in or willing to relocate to San Francisco, or exceptional remote candidate.

Responsibilities

• Design and implement core workflows and infrastructure for hardware engineering agents, including intelligent context management, novel indexing approaches, and post-training.
• Build agents and ML models that can interpret, reason over, and manipulate complex engineering design data, integrating with enterprise-grade engineering tools and systems.
• Work closely with customers and the engineering team to deliver AI-powered workflows that are reliable, intuitive, and trusted in production environments.
• Prototype rapidly, validate ideas with real users, and ship frequently.
• Influence engineering culture, architecture decisions, and the future of the product

Skills

LLM architectures knowledge

Agent research trends

Production ML systems experience

Information retrieval

Customer-centric focus

Education

Bachelor’s or higher in Computer Science, Machine Learning, or equivalent experience

Tools

PyTorch

Hugging Face

W&B

Job description

Ersilia is hiring a world-class Applied AI Engineer to build the core systems behind their automation engine for hardware engineering. You will design, implement, and post-train AI agents powering critical product development workflows for global enterprise customers, integrating into real-world engineering environments.

This deeply technical, high-impact role places you among the first technical hires, owning mission-critical systems end-to-end.