hims & hers · 1 month ago
Sr. Full-Stack Engineer, Applied AI
United States
Full-time
Remote
Mid, Senior Level
$170K/yr - $190K/yr
4+ years expHims & Hers is the leading health and wellness platform, on a mission to help the world feel great through the power of better health. They are seeking a Sr. Full-Stack Engineer to join the Applied AI team, responsible for building the core infrastructure for AI-powered health experiences.
Health CareLifestyleMen'sWellnessWomen's
Responsibilities
Design and build scalable AI workflow systems — including orchestration runtimes, SDKs, and observability pipelines that power real-time, intelligent experiences
Develop end-to-end features using TypeScript (Cloudflare Workers, React/Next.js) and Python (Databricks, evaluation, data processing)
Integrate and evaluate large language models (LLMs) and other ML systems (OpenAI, Anthropic, Vertex, Databricks) via a unified AI Gateway
Build tool connectors and APIs for our internal domains — EHR, Pharmacy, Payments, Orders, Care — enabling safe and automated cross-system workflows
Develop evaluation and feedback systems that measure quality, grounding, latency, and safety of AI-powered flows
Partner closely with AI, Product, and Infra teams to design, prototype, and iterate quickly — turning research into production capabilities
Contribute to shared TypeScript and Python SDKs that standardize event schemas, tool contracts, and developer experience across Applied AI
Ensure everything you build meets security-by-design and privacy-first principles, supporting HIPAA and compliance requirements
Foster a build → measure → learn culture by testing fast, gathering feedback, and continuously improving the system
Qualification
Required
4+ years of professional full-stack experience, spanning backend APIs, frontend apps, infra, and data systems
Proficient in TypeScript (Node.js, React) and Python (data pipelines, ML evaluation, orchestration)
Familiarity with LLM- or ML-based systems, including prompt orchestration, evaluation harnesses, or RAG pipelines
Experience with workflow orchestration tools
Understanding of system design for AI workloads — including state management, retries, idempotency, and performance optimization
Experience with data/ML infrastructure (Databricks, AWS, vector stores, or BigQuery)
A bias toward action and iteration — you build fast, validate ideas early, and improve based on results
Collaborative mindset, with strong communication skills
Awareness of AI lifecycle management — from experimentation and evaluation to safety and deployment
Preferred
Building AI evaluation or observability systems, such as LLM-as-a-judge frameworks or human review pipelines
Experience with Databricks, Cloudflare Durable Objects, or other edge orchestration systems
Background in healthcare, life sciences, or regulated industries
Contributions to open-source SDKs or AI infrastructure projects
Experience creating visual workflow editors or n8n-style automation tools
Benefits
Competitive salary & equity compensation for full-time roles
Unlimited PTO, company holidays, and quarterly mental health days
Comprehensive health benefits including medical, dental & vision, and parental leave
Employee Stock Purchase Program (ESPP)
401k benefits with employer matching contribution
Offsite team retreats
Company
hims & hers
Hims is a wellness brand that helps men and women get access to products for skin care, hair loss, and sexual health.
501-1000 employees
Funding
Current Stage
Public CompanyTotal Funding
$1.23BKey Investors
Franklin TempletonIVPThrive Capital
2025-05-08Post Ipo Debt· $1B
2021-01-21Post Ipo Equity· $75M
2021-01-21IPO
Leadership Team
Andrew Dudum
Founder & CEO
Yemi Okupe
CFO
Recent News
dcm.com
2025-12-31
Company data provided by crunchbase