Principal Engineer

Diana Health is a network of modern women’s health practices aiming to enhance maternity and women’s healthcare experiences. They are seeking a Principal Engineer to lead the architecture and technical direction of their platform, working closely with the Head of Engineering to design and implement scalable systems.

Responsibilities:

• Own architecture end-to-end: design, evolve, and document backend systems, APIs, and infrastructure
• Stay hands-on: write production-grade code, contribute to design reviews, and drive technical excellence
• Set engineering standards for testing, observability, CI/CD, and deployment practices
• Partner with product and leadership to translate complex problems into clean, scalable solutions
• Guide technical strategy and roadmap decisions to ensure we’re building with scalability, security, and simplicity in mind
• Collaborate cross-functionally with mobile, design, and clinical stakeholders to deliver reliable and delightful user experiences

Requirements:

• 8+ years of experience building and scaling production systems
• Deep experience in Python (FastAPI, Flask, or similar)
• Proven expertise with AWS serverless: Lambda, DynamoDB, EventBridge, API Gateway, S3, and related services
• Strong understanding of distributed system design, data modeling, and cloud architecture best practices
• Familiarity with React Native / Expo or mobile API integration patterns
• A track record of technical leadership — setting standards, improving systems, and leading initiatives
• Clear communicator who values pragmatism, iteration, and delivering great products quickly
• Experience designing new architectures from scratch or leading major refactors
• Background in healthcare, privacy, or regulated environments
• Experience with TypeScript, NestJS, or Node.js for edge or integration work