Backend Engineer (Node.js / NestJS)

Posted Yesterday
Be an Early Applicant
Hiring Remotely in USA
Remote
100K-175K Annually
Senior level
Healthtech • Information Technology • Software
The Role
As a Backend Engineer, you'll design and implement backend services, build secure APIs, manage relational data, and ensure system observability while collaborating with cross-functional teams.
Summary Generated by Built In

Join Outlive

Help Build the Operating System for Better Long-Term Health

Outlive is translating the principles of Medicine 3.0 into a practical, evidence-based product that helps people change the trajectory of their health. We focus on what matters most. Setting meaningful long-term goals, understanding the risks that can get in the way, and selecting the tactics that move the needle. Our approach is grounded in the ideas Peter Attia has spent his career developing. A deliberate practice with clear metrics and truly personalized plans that extend healthspan, not just lifespan. 

We’re building a system that takes the essential pillars of long-term health and makes them actionable. Our goal is simple. Give people a structured way to understand where they are today, what levers truly matter, and how to make durable progress over time.

Why Outlive

You will shape the foundation, not optimize at the margins

We’re in the earliest stages of building something that doesn’t exist anywhere else. There are no templates. No inherited systems. The work requires people who want to solve first-principles problems and create frameworks built to last.

Science and design sit at the center of everything

We aim to convey complex ideas with clarity and precision. That means pairing rigorous scientific thinking with thoughtful, intuitive design; so users can understand why something matters and how to act on it.

AI is part of how we work 

The product itself is grounded in science and behavior change. But as a team, we use AI to think, test, draft, explore, and accelerate our work. It’s a tool that enhances judgment and craftsmanship, not a replacement for either.

We care about rigor, honesty, and high standards

The team is small, driven, and aligned around a shared goal: build something that meaningfully improves long-term health. We challenge ideas respectfully, expect clear reasoning, and operate with a bias toward action. Precision matters. So does integrity.

Role Overview

As a Backend Engineer, you’ll be responsible for designing and evolving the core services that power Outlive’s health intelligence platform. This includes user identity, data ingestion, scoring systems, background processing, and secure integrations with external services.

You’ll work primarily in TypeScript with NestJS, deploying to Cloud Run and Cloud Functions on GCP.

Responsibilities
  • Design and implement backend services using NestJS (v11) and TypeScript
  • Build secure, well-validated REST APIs using zod, class-validator, and OpenAPI
  • Implement role-based access control and JWT validation using Google Identity
  • Model and manage relational data using Prisma and Postgres
  • Implement background jobs and async workflows using Cloud Tasks
  • Integrate with external services (OCR, scheduling APIs, third-party data sources)
  • Ensure observability through structured logging, metrics, and Sentry
  • Write unit and integration tests using Jest
  • Collaborate closely with frontend and infra engineers on system design and deployment
Required Qualifications
  • 5+ years of backend engineering experience
  • Strong experience with Node.js and TypeScript
  • Production experience with NestJS or similar structured backend frameworks
  • Experience designing APIs and data models for complex domains
  • Familiarity with relational databases and ORMs
  • Strong security mindset, especially around auth and data access
  • Experience optimizing Postgres data interactions
  • Strong familiarity with building distributed systems, related practical design considerations, and patterns for scaling such systems in the cloud
Nice-to-Have
  • Experience with Google Cloud Platform
  • Experience in healthcare, fintech, or other regulated domains
  • Familiarity with OCR pipelines or document processing
  • Experience with event-driven or task-based architectures
Expected Pay Range
$100,000$175,000 USD

What We Offer

  • 100% employer-paid medical, vision, and dental insurance (multiple plans available).
  • 100% employer-paid life insurance, short-term, and long-term disability insurance.
  • Employer-sponsored HSA contributions for HDHP medical plans
  • Additional HSA and FSA spending account plans for employees
  • 401(k) with a 5% company match.
  • Generous PTO and holiday schedule.
  • Company-issued technology and work-from-home stipend.
  • A chance to shape a product, and a company, from the ground up.
  • The opportunity to work at the forefront of health and longevity science with a team of world-class professionals dedicated to precision, mastery, and excellence.

Skills Required

  • 5+ years of backend engineering experience
  • Strong experience with Node.js and TypeScript
  • Production experience with NestJS or similar structured backend frameworks
  • Experience designing APIs and data models for complex domains
  • Familiarity with relational databases and ORMs
  • Strong security mindset, especially around auth and data access
  • Experience optimizing Postgres data interactions
  • Strong familiarity with building distributed systems, related practical design considerations, and patterns for scaling such systems in the cloud
Am I A Good Fit?
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The Company
11 Employees
Year Founded: 2021

What We Do

Outlive is a pioneering company dedicated to enhancing the quality of life through innovative health solutions, building the operating system for Medicine 3.0. Their mission is to empower individuals to take control of their health and longevity by providing cutting-edge products and services that transform longevity science into daily action.

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