Product Engineer

Healthcare is in crisis and the people behind the results deserve better. With more and more data coming from wearables, lab tests, and patient–doctor interactions, we’re entering an era where data is abundant.

Junction is building the infrastructure layer for diagnostic healthcare, making patient data accessible, actionable, and automated across labs and devices. Our mission is simple but ambitious: use health data to unlock unprecedented insight into human health and disease.

If you're passionate about how technology can supercharge healthcare, you’ll fit right in.

Backed by Creandum, Point Nine, 20VC, YC , and leading angels, we’re working to solve one of the biggest challenges of our time: making healthcare personalized, proactive, and affordable. We’re already connecting millions and scaling fast.

Short on time?

You: You’re an experienced product builder. You’re motivated to help predict chronic diseases - faster and more affordably

Us: Team size 45, 7 engineers, revenue 4x'd in the last year

Salary: £90K - £130K + equity

Location: Fully remote (GMT timezone)

Why we need you

Our small (for now) but mighty 6-person engineering team is tackling big, ambitious problems across wearables and lab testing. We’re already:

Streaming time-series data from 3M+ wearables every second

Helping major digital health companies deliver 4M+ lab tests across all 50 US states

Saving millions of patients thousands of dollars

Now we’re aiming even higher: going from 4 million lab tests to 40 million diagnostics in the next year. To get there, we need full-stack engineers who can help us build the next version of our diagnostics API.

You don’t need healthcare experience but you do need to:

Get excited about shipping features that can cut medical bills by 10x

Be curious enough to unpack messy insurance incentives and parse thousands of records to estimate true out-of-pocket costs for patients

Ask sharp questions to take a problem from “rough idea” to shipped software

Stay pragmatic and comfortable navigating domain experts, constraints, and real-world edge cases

Care deeply about UX: build interfaces that feel intuitive and clearly communicate complex healthcare information

What you’ll be doing day to day

Building our customer facing products: we have dashboards for both product verticals, wearables and lab testing. For example, the lab testing dashboard allows customers to self serve and order lab tests for their patients.

Speaking with customers: for this role, we need you to be customer obsessed, asking thought-provoking questions and digging into product usage

Owning features across the stack: You'll own features end-to-end across frontend and backend, and in the cloud. You'll build new functionality, design clean APIs, and manage reliable, fault-tolerant services and pipelines in production.

Tackling ambitious problems: you’ll be breaking down technical challenges that haven’t been done before in healthcare, we need you to be extremely product minded with every line of code you write

Iterating quickly: ship, learn from real usage, and refine to make the experience better each time.

Requirements

Startup engineering experience where you influenced what to build, not just how to build it

Bonus: you’ve built something from 0 → 1

A track record of building and shipping full-stack features end-to-end

Ability to turn messy or unclear problems into a clear plan

Comfortable working across frontend and backend (perfection in both not required)

Strong product judgment - within a clear product direction

Focus on how people actually use the product, not just code elegance

Fast iteration based on feedback and metrics

Comfortable working in a domain with hard constraints and complex real-world edge cases

Proactive about getting feedback from customers on what you ship

You don’t need to tick every box to fit in here. If the problems we’re solving genuinely interest you and you know you can contribute, we’d love to talk.

How you'll be compensated

Salary: £90K - £130K + equity

Your salary is dependent on your location and experience level

Equity (extended exercise post 2 years of employment)

Company and team offsites

Monthly learning budget of $150 for personal development and productivity

$100 monthly wellness budget

Flexible, remote-first working - including $1K for home office equipment

Coworking budget

36 days paid time off (including bank holidays)

Premium healthcare coverage

4% monthly contribution to pension/401k

Yearly blood test on us

Enhanced parental, foster, and adoption leave

Important details before applying:

We only hire folks physically based in GMT and EST timezones - more information here

We do not sponsor visas right now given our stage