Founding Engineer

Fluency Digital, Inc.; San Francisco (CA); On-site; USD 120,000 - 150,000; Full time

Job summary

Fluency Digital, Inc. is seeking a skilled engineer in San Francisco to design and build their core platform focused on pediatric therapy. This role requires 4+ years of experience with TypeScript and React, and a passion for improving child development outcomes through technology.

You'll integrate advanced tooling like Langchain to enhance clinician workflows and reduce administrative burdens. This is a highly collaborative and impactful position requiring a commitment to on-site work.

Qualifications

• 4+ years of professional experience shipping production software with TypeScript and React.
• Practical experience integrating LLM tooling such as Langchain into user-facing applications.
• Deep interest in healthcare, insurance infrastructure, or child welfare systems.

Responsibilities

• Architect the core platform from the ground up in an on-site role.
• Blend reactive front-end interfaces with Langchain-driven automation.
• Shape how families access care and how clinicians manage their practice.

Skills

TypeScript

React

Langchain

Job description

Seed-stage venture using AI to modernize pediatric therapy and streamline clinician workflows.

You are the engineer who sees code as a direct lever for better child development outcomes, not just a technical exercise. In this on-site San Francisco role, you will architect the core platform from the ground up, blending reactive front-end interfaces with Langchain-driven automation to reduce administrative burdens for therapists. Your work will immediately shape how families access care and how clinicians manage their practice, requiring a builder who thrives on ambiguity and tangible impact.

What we're looking for:

• 4+ years of professional experience shipping production software with TypeScript and React.
• Practical experience integrating LLM tooling such as Langchain into user-facing applications.
• Deep interest in healthcare, insurance infrastructure, or child welfare systems.
• Preference for high-collaboration, on-site environments over remote-first structures.
• Must be based in the United States.

Tech stack

TypeScript, React, Langchain