Principal Engineer, Applied AI (Fullstack/Backend)

The role

This Principal Engineer will architect the transformation of the Applied AI stack. You will productionize research-driven AI experiences to make them robust, scalable, and reliable for the patient experience.

What you will do

• Own the overall architecture for the Applied AI stack
• Productionize AI-driven experiences by hardening services for uptime, reliability, and scale
• Instill best practices around debugging, observability, and operational readiness
• Mentor senior technical leaders and elevate engineering capabilities
• Lead through complexity and ambiguity to accelerate strategic initiatives
• Translate customer needs and product goals into scalable technical solutions
• Design systems and team boundaries to support sustainable growth

Required qualifications

• 15+ years of professional software engineering experience
• Deep architectural expertise
• Record of delivering production systems at scale
• Proven track record of influencing technical strategy and delivering cross-org technical initiatives
• Demonstrated ability to stand up services at scale in production
• Deep experience owning service architecture across a full stack
• Hands-on engineering ability
• Exposure to LLM/AI services
• Strong communication and collaboration skills

Nice to have

• Create alignment and momentum in ambiguous or complex technical spaces
• Balance short-term deliverables with long-term scalability, system health, and customer experience
• Lead with curiosity, adaptability, and principled decision-making
• Take initiative to address cross-squad blockers, scale constraints, or misaligned priorities
• Drive consistent, action-oriented execution even without perfect clarity
• Mentor senior engineering talent
• Inspire confidence through transparency, humility, and deep technical credibility
• Advocate for customers through scalable, resilient backend design

About the company

Hims & Hers is a health and wellness platform that provides access to affordable, accessible, and personal care. It is a public company traded on the NYSE.