Principal Full-Stack Engineer (React/Node) — CTO’s Technical Partner

About the company
AI-powered platform for private-practice therapists. We blend practice management (scheduling, billing, documentation, comms) with AI business insights so therapists can make better decisions (pricing, revenue trends, churn risk).

Why join

• Proven founders: first employees at SimplePractice (market leader; IPO 2021); 10+ years building products for 200k+ therapists.
• True technical partnership: CTO’s right hand; autonomy, ownership across multiple domains; real say in roadmap/architecture.
• Hard problems: HIPAA-grade architecture from scratch, trustworthy AI, secure data pipelines, personalization at scale.
   

You will

• Design & evolve Clean Architecture (domain→application→infrastructure), DDD, CQRS.
• Build end-to-end across React 19/TS frontend and Node.js/AWS (SST) backend/infra.
• Drive decisions, code quality, and technical debates in a high-trust senior team.
   

Must-have

• 10+ years in software engineering.
• Led architecture (greenfield or major refactors).
• Deep React/TypeScript/Node.js.
• Solid grasp of Clean Architecture.
   

Nice-to-have

• Scaling experience; regulated industries/HIPAA; Stripe payments.
   

Stack
React 19, TS 5.5, TanStack Query v5, Zustand, Tailwind, shadcn/ui, Zod, RHF;
Node.js 20.x, SST, AWS (Cognito, Aurora Serverless PG, DynamoDB, S3, Lambda, API GW);
Turborepo + pnpm; DDD, CQRS, feature-based.
 

Comp & Work
Competitive, negotiable • B2B • Fully remote • Flexible hours • IC track with optional future management.

Process
Recruiter screen (45m) → Deep-dive with CTO (~2.5-3h) → Team fit (60m).