Senior Software Engineer — Full-Stack, Health AI

Stealth Startup; New York (NY); On-site; USD 200,000 - 260,000; Full time

Benefits offered by this job

Equity participation

On-site in Manhattan, NYC

Job summary

Stealth Startup in Manhattan, NYC is seeking a Senior Software Engineer to build and scale our core platform. You will own frontend and backend development across the stack, influence architecture, and drive production-grade delivery in a fast-growing healthcare AI startup.

This on-site role offers meaningful equity and the opportunity to shape product and technology directions. Join a small, high-impact team and collaborate with product, design, and engineering leadership to deliver

Qualifications

• 5+ years of professional software engineering experience.
• Strong full-stack development with React, TypeScript, and Node.js.
• Experience designing backend services, REST APIs, and distributed architectures.
• Strong PostgreSQL experience, including design, optimization, and data modeling.
• Hands-on experience building and deploying applications within AWS.
• Understanding of modern software architecture, cloud infrastructure, and scalable development.
• Experience taking ownership of projects and delivering production-quality software.
• Strong problem-solving skills and ability to operate autonomously in a fast-moving environment.
• Excellent communication and collaboration skills.

Responsibilities

• Design, build, and maintain scalable full-stack applications using React, TypeScript, and Node.js.
• Develop intuitive, high-quality frontend experiences and reusable UI components.
• Build robust backend services, APIs, and integrations to support core product functionality.
• Design and optimize PostgreSQL databases, data models, and complex queries.
• Develop, deploy, and maintain cloud infrastructure and applications within AWS.
• Collaborate closely with product, design, and engineering leadership to translate business requirements into technical solutions.
• Take ownership of projects across the entire software development lifecycle, from architecture and development through testing, deployment, and optimization.
• Establish engineering best practices around code quality, testing, performance, reliability, and scalability.
• Contribute to architectural decisions and help shape the company's technical roadmap.
• Work in a fast-paced startup environment where engineers have direct input into product direction and business outcomes.

Skills

React

TypeScript

Node.js

PostgreSQL

AWS

Job description

Stealth Startup in Manhattan, NYC is seeking a Senior Software Engineer to build and scale our core platform. You will own frontend and backend development across the stack, influence architecture, and drive production-grade delivery in a fast-growing healthcare AI startup.

This on-site role offers meaningful equity and the opportunity to shape product and technology directions. Join a small, high-impact team and collaborate with product, design, and engineering leadership to deliver