Senior AI Software Engineer

About this role

Build and scale AI agents, including real-time voice agents, and the LLM-powered products around them. Own architecture across the agents, voice pipeline, and production platform, with a focus on reliability, throughput, and safe integration into healthcare workflows.

About the company

Sword Health is a digital musculoskeletal care company that helps employers and health plans deliver AI-powered physical therapy and related care programs.

Stack

What you'll do

• Design, deliver, and improve AI agents and LLM-powered products
• Build and scale reliable, high-throughput production backend and platform systems
• Integrate agents into software flows and evaluate new models with benchmarks and evals
• Own architecture and design decisions across agents, voice pipeline, and platform
• Define engineering practices, improve code reviews, and mentor colleagues

What we're looking for

• 4+ years building and operating production software
• Deep expertise in scalable system architecture, production agents, or real-time voice agents
• Working understanding of LLM development and behavior
• Solid experience with Python, SQL, and event-driven design
• Cloud platform experience, ideally GCP
• Experience leading complex projects from ideation through maintenance
• Experience providing technical oversight and mentoring colleagues
• Fluent, confident English communication

Nice to have

• Experience shipping LLM-powered features with observability and evaluations
• Healthcare or other regulated-domain experience
• Experience designing experiments and interpreting results
• Experience serving multiple clients from one codebase

Benefits

• Compensation includes base, variable compensation, and estimated private-company stock option value; additional benefits vary by country