Founding Full-Stack Engineer | AI Healthcare Startup

Day One Partners; San Francisco (CA); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Premium health coverage

Team meals

Seed-stage equity

Job summary

Day One Partners is seeking a backend developer in San Francisco to build and scale AI-powered systems. Join a venture-backed startup creating technology to navigate chronic health conditions. You will have significant ownership over architecture and product direction, alongside competitive compensation and meaningful equity.

The ideal candidate will have strong experience in production software systems, enjoy ambiguity in a startup environment, and have a passion for AI and workflow automation.

Qualifications

• Strong experience building and scaling production software systems.
• Hands-on experience with Python and modern backend frameworks.
• Experience in fast-moving startup environments and comfort with ambiguity.

Responsibilities

• Build and scale backend systems, data pipelines, and AI-powered product infrastructure.
• Develop and improve recommendation systems, LLM integrations, and agent-driven workflows.
• Design systems that support secure, scalable health-related data experiences.

Skills

Experience building and scaling production software systems

Hands-on experience with Python

Interest in AI and workflow automation

Job description

Day One Partners is a search firm that partners with venture capital firms to help build high-growth startups. We lead confidential searches for leadership and critical roles across a range of company stages, industries, and functions

Join a venture-backed startup building an AI-powered platform designed to help people navigate complex chronic health conditions. Backed by leading investors and led by a repeat founder with multiple successful startup outcomes, this is an opportunity to help shape a category-defining product from the ground up.

What You’ll Do:

• Build and scale backend systems, data pipelines, and AI-powered product infrastructure
• Develop and improve recommendation systems, LLM integrations, and agent-driven workflows
• Partner closely with product and leadership to make foundational technical decisions
• Design systems that support secure, scalable health-related data experiences
• Contribute to roadmap discussions and help identify better technical solutions

What You’ll Bring:

• Strong experience building and scaling production software systems
• Hands-on experience with Python and modern backend frameworks
• Deep interest in AI, LLMs, agents, and workflow automation beyond casual usage
• Experience in fast-moving startup environments and comfort with ambiguity
• Bonus: consumer product experience, side projects, founder experience, or healthcare-related domain knowledge

Why You’ll Love This Role:

• Significant ownership over architecture, product direction, and technical strategy
• Meaningful Seed-stage equity alongside competitive compensation
• Opportunity to work directly with an experienced founder and a highly collaborative engineering team
• Premium health coverage, team meals, and a dedicated in-office environment in downtown San Francisco
• The chance to build technology that can meaningfully improve lives at scale