Full Stack Engineer (£70k–£80k + Equity) at high-growth London health-tech startup

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The next step is to speak to Jack.

Job Title

Full Stack Engineer

Salary

£70k–£80k + Equity

Company Description

Fast-growing health-tech startup backed by leading UK investors with £1M ARR

Job Description

Join a lean, high-velocity team of 16 building computer vision technology to eliminate musculoskeletal pain for millions. You will own features end-to-end across a modern Vue.js and .NET stack, collaborating directly with GPs and UX designers to ship clinical logic that reduces patient pain by an average of 34%.

Location

London, UK

Why this role is remarkable

• Work on a mission-driven product trusted by global giants like Bupa, the NHS, and AXA across 32 countries to solve a leading cause of long-term health issues.
• High-impact environment where you’ll be the fourth engineer, enjoying massive autonomy and the ability to influence architectural decisions at a critical growth stage.
• Exceptional culture with a 50:50 gender split, offering meaningful equity, professional development budgets, and a dog-friendly office in the heart of Old Street.

• Design and ship complex features like AI data analysis tools and webcam-based pose estimation for real-time movement analysis.
• Architect scalable systems using C#, ASP.NET Core, and AWS while ensuring seamless frontend experiences with Vue.js.
• Collaborate with the Clinical Lead and UI/UX designers to translate medical expertise into automated diagnostic tools and exercise algorithms.

• 3+ years of full stack experience with a track record of building complex applications using strongly typed backends and modern JS frameworks.
• A self-starter who thrives in high-velocity environments, prioritizing shipping value and taking full ownership of features without waiting for detailed specs.
• Product-minded engineer with a passion for health-tech who enjoys working closely with users and cross-functional teams to improve clinical outcomes.

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.

Next steps

Step 1. Visit the job listing.

Step 2. Click 'Talk to Jack', or go straight there: https://www.jackandjill.ai/jobs/full-stack-engineer-70k-80k-equity-at-high-growth-london-health-tech-startup-cfccbb06-9624-402f-b566-6e0a3b8a6111?utm_source=linkedin&utm_medium=job_post&utm_campaign=featured_role_cfccbb06-9624-402f-b566-6e0a3b8a6111

Step 3. Talk to Jack so he can understand your experience and ambitions.

Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.

Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.

Step 6. If not, Jack will find you excellent alternatives. All for free.

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.