Jack & Jill

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. 
 
She will pick the best candidates from Jack's network. 
 
The next step is to speak to Jack. 
 
Job Title 
 
Senior Full-Stack Engineer 
 
Salary 
 
$150k–$200k + Equity 
 
Company Description 
 
Series A digital health startup backed by a16z and Khosla Ventures helping 10M+ seniors 
 
Job Description 
 
Join a mission-driven team as a Senior Full-Stack Engineer building a clinical platform that has already reduced falls in older adults by 46%. You will own the architecture and end-to-end feature development on a React/Python/AWS stack, shipping high-impact products like ML-driven care guidance and EHR integrations to improve healthcare outcomes for millions. 
 
Location 
 
Los Angeles, USA 
 
Why this role is remarkable 
 


* Rare opportunity to join an a16z and Khosla Ventures-backed startup at an inflection point where product-market fit is proven and scaling is the primary focus.
* Direct clinical impact: build technology that significantly reduces injury and hospitalizations for a population of 10 million Medicare members.
* High ownership environment where you will shape technical direction and influence the engineering foundation rather than just executing tickets. 
 
 

What You Will Do 
 


* Architect and maintain scalable, HIPAA-compliant components on AWS to power member engagement and clinical messaging workflows.
* Partner with data science and clinical teams to prototype and launch ML-driven personalization and care guidance features.
* Drive technical excellence by mentoring teammates, conducting code reviews, and evolving the platform's design system and infrastructure. 
 
 

The ideal candidate 
 


* 5+ years of professional experience scaling modern web applications using Javascript (React) and Python on cloud infrastructure.
* Product-minded engineer with a growth mindset who thrives in fast-paced startup environments and can navigate technical ambiguity.
* Strong communicator who possesses deep empathy for older adults and is motivated by improving healthcare accessibility and independence. 
 
 

Who are Jack & Jill? 
 
Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. 
 
And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate. 
 
How does this work? 
 


* Jack's an AI agent for job searching and career coaching. He works for you.
* Jill is the AI recruiter working for the company. She recruits from Jack's network.
* If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives. 
 
 

We never post fake jobs 
 
This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. 
 
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. 
 
We appreciate this can make them look a bit suspect, but there isn't much we can do about it. 
 
Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

Amazon

React

Python

Network

JavaScript

Wireframing/prototyping

Data Science

Cloud

Infrastructure

Web Development

Data

Growth

Support

MLflow

Hipaa

Web Servers

Scalability

Technical Architecture

Code Review

Design Systems

Social media engagement

Product-market fit

Startups

Senior Full-Stack Engineer ($150k–$200k + Equity) at Age Bold, Inc.