Staff Fullstack Engineer, Sage
Detect
$190-245k
+ Stock Options
3+ days a week in office (Union Square, NY)
Modern operating system for senior care
Job no longer available
Modern operating system for senior care
101-200 employees
Job no longer available
$190-245k
+ Stock Options
3+ days a week in office (Union Square, NY)
101-200 employees
Company mission
To improve the care and quality of life for caregivers and older adults.
Role
Who you are
- 5+ years of professional fullstack development experience
- Strong proficiency in modern JavaScript/TypeScript and React
- Experience with backend development in Java, Kotlin, or similar languages
- Track record of building responsive, accessible web applications
- Experience with RESTful API design and integration
- Demonstrated ability to work across the full stack and ship complete features
Desirable
- Experience translating complex data or AI-generated insights into intuitive, user-friendly interfaces
- Background in building workflow management or escalation systems
- Experience with Dropwizard, Spring Boot, or similar JVM frameworks
- Track record of building mobile-responsive web applications for non-technical users
- Experience working with healthcare, senior care, or other mission-critical applications
- Familiarity with privacy and security best practices for sensitive data
What the job involves
- As a fullstack engineer on Detect, you'll be at the forefront of bringing AI-powered insights to life for caregivers and facility staff
- You'll build the critical user experiences in our Care App that transform AI detection events into actionable workflows that save lives - creating intuitive interfaces for reviewing and escalating fall events, building sophisticated alerting and notification systems, and developing tools that help caregivers respond faster and more effectively
- This is an opportunity to shape how thousands of caregivers interact with cutting-edge AI technology, making it accessible, understandable, and actionable
- You'll work across the full stack, from crafting responsive React interfaces to building robust backend services, bridging the gap between our AI capabilities and the caregivers who depend on them every day
- Build simple, intuitive status indicators and operational dashboards that give facility managers and caregivers real-time visibility into resident activity and safety events
- Develop sophisticated post-detection workflows in the Care App that enable caregivers to quickly triage AI-detected events, escalate true emergencies, and coordinate team responses
- Create flexible alerting and notification systems that allow communities to configure custom rules for resident behaviors like bed exits, unit departures, or balance concerns
- Enhance video review capabilities to improve how authorized staff access, annotate, and share fall events while maintaining privacy and security
- Implement performant full-stack features using React, TypeScript, and Java/Kotlin, ensuring seamless data flow from backend AI services to user-facing applications
- Collaborate with design and product teams to create interfaces that make complex AI capabilities approachable for non-technical users
Our take
In the event of an accident or fall, elder care facilities largely rely on outdated nurse call systems, which can mean residents wait longer than necessary to receive care or attention. Sage solves this problem by providing carers and institutions with a modern operating system.
Sage's caregiver app allows carers to identify patients in need of help, as well as providing tools for triage and the reviewing of care information. As one of the first companies to bring a data-driven approach to elder care in this way, Sage has received strong attention and raised impressive funding, most recently with the acquisition of $65M.
The age-tech market is growing steadily, and becoming more competitive, which means Sage will need to invest heavily in scaling its outreach in order to consolidate its progress. That said, it has established an early foothold which gives it a place to work from as it develops into the future.
Freddie
Company Specialist at Welcome to the Jungle
Insights
Company
Funding (last 2 of 4 rounds)
Mar 2026
$65m
SERIES C
Dec 2024
$35m
SERIES B
Total funding: $124m
Company benefits
- You and your health: Your health comes first. Sage covers 100% of your individual medical premium, plus dental and vision. Every employee also gets a free OneMedical membership for modern primary care, plus access to mental health support through Talkspace, fertility care through KindBody, and virtual medicine through Teladoc.
- Your family and time: When life happens, we're with you. Sage grants eight weeks of parental leave to non-birthing parents and 12 weeks to birthing parents. We also offer a hybrid work schedule and unlimited PTO, which we encourage you to use. In addition, Sage has seven company holidays and closes for two weeks at the end of December.
- Your financial future: You're building something here, so you should own a piece of it. All full-time employees receive equity as part of their compensation package, along with a 401(k) through Empower, flexible spending accounts for medical and dependent care, and commuter benefits through Optum Financial.
Company HQ
Chelsea, New York, NY
Leadership
Ellen Johnston
(Co-Founder & CPO)Previously Co-Founder, Creative Director and CEO of Makr. She also worked as Director of Digital Experience at Staples.
Matt Lynch
(Co-Founder & CTO)Previously a Senior Software Engineer at the Naval Surface Warfare Center, and a Software Engineering Group Lead at Palantir Technologies.
Raj Mehra
(Co-Founder & CEO)Raj previously co-founded Coupon Doc. He also worked in Corporate Development at Palantir Technologies and as a Head of Strategy & Operations at Cedar.
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