AI Engineer

Pathwork • San Francisco, CA

163d

About The Position

We’re hiring an AI engineer, a full-stack, strategic builder who can take a large project from a working prototype to an industry-defining product. You’ll lead development of our agentic AI systems, owning model orchestration, retrieval, real-time inference, evaluation, and production infrastructure, and collaborating closely with the founding team on product and technical strategy.

Requirements

• 5–10 years of experience building AI or ML-powered systems, ideally in high-growth or early-stage environments
• Experience shipping real products that use LLMs, retrieval, orchestration, or streaming inference—not just prototypes
• Comfortable moving between modeling, infra, and product-facing code
• Entrepreneurial mindset and thrive on building from scratch—systems, processes, tools, and the team
• Ability to explain complex ideas clearly, especially to non-technical teammates, customers, and stakeholders
• Thrive in ambiguity and take ownership in fast-paced, high-trust environments

Nice To Haves

• Experience with vertical software businesses or agentic AI systems

Responsibilities

• Design and own end-to-end agentic systems—retrieval, orchestration, inference, eval, and feedback loops
• Shape our architecture across model interfaces, data pipelines, vector DBs, and streaming infrastructure
• Partner with product and design to prototype, test, and launch AI-driven features that deliver real value
• Continuously optimize accuracy, latency, and robustness through fine-tuning, eval frameworks, and data iteration
• Join sales and customer calls to understand real-world pain points, pressure-test features, and translate feedback into product improvements
• Build infrastructure and tools that help the whole company move faster—debugging, observability, agent testing
• Hire, mentor, and collaborate with engineers who care about craft, velocity, and real-world impact

Benefits

• Competitive compensation + meaningful equity
• High 401(k) match and FSA program
• Modern, employer-paid health benefits designed to support you on your terms
• Generous PTO policy with clear guidelines
• Real ownership, autonomy, and direct collaboration with the founders
• A chance to define a category and shape a product from scratch
• A hybrid culture anchored in SF and NYC—4 days a week in our Presidio HQ or our Williamsburg office on Domino Park

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level