Senior iOS Engineer (+ Equity) at Early

Senior iOS Engineer (+ Equity) at Early

Full-Time 70000 - 90000 £ / year (est.) No working from home possible
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At a Glance

  • Tasks: Lead the development of a cutting-edge health platform using Swift and SwiftUI.
  • Company: Join Early, a pioneering healthcare tech company in London.
  • Benefits: Equity options, competitive salary, and a chance to make a real impact.
  • Other info: Enjoy high ownership and autonomy in a dynamic, early-stage team.
  • Why this job: Work at the forefront of AI and healthcare, saving lives through technology.
  • Qualifications: Expertise in iOS development with Swift and experience in health tech.

The predicted salary is between 70000 - 90000 £ per year.

Early is a London‑based healthcare technology company building an AI‑first platform for the early detection of chronic diseases. By combining electrochemical sensing, hardware, and behavioral science, Early aims to move diagnostics from the clinic to the home, helping millions manage their health through proactive intervention.

Early is seeking a Senior iOS Engineer to build a consumer‑grade health platform. You will lead the development of our native Swift and SwiftUI application, integrating hardware via Core Bluetooth and health data through HealthKit. This AI‑first role emphasizes modern tooling like Claude Code to accelerate development and solve complex preventative healthcare challenges.

Location: London, UK

Why this role is remarkable:

  • Work at the intersection of hardware, AI, and healthcare to build a product capable of saving lives through early disease detection.
  • Join an AI‑first engineering culture that uses cutting‑edge tools like Claude Code as a core workflow to focus on high‑impact engineering.
  • Experience high ownership and autonomy in an early‑stage team, working directly with leadership to shape the product's architecture and engineering culture.

What You Will Do:

  • Architect and build the native iOS application using Swift and SwiftUI, ensuring high performance and a premium consumer‑grade user experience.
  • Integrate with proprietary diagnostic hardware over Core Bluetooth and leverage HealthKit to provide users with deep, actionable health insights.
  • Collaborate cross‑functionally with scientists, designers, and hardware engineers to translate complex medical data into intuitive, impactful mobile features.

The ideal candidate:

  • Extensive experience shipping production‑ready native iOS applications with a deep mastery of Swift, SwiftUI, and modern concurrency patterns.
  • Proven track record of working in health tech or heavily regulated environments, with experience managing sensitive data and complex user privacy requirements.
  • Passionate about AI‑assisted development workflows and comfortable using tools like Claude Code to improve engineering efficiency and output quality.

Senior iOS Engineer (+ Equity) at Early employer: Jack & Jill

Early is an exceptional employer, offering a unique opportunity to work at the forefront of healthcare technology in London. With a strong emphasis on an AI-first engineering culture, employees enjoy high ownership and autonomy while collaborating with cross-functional teams to create impactful health solutions. The company fosters a supportive work environment that prioritises employee growth and innovation, making it an ideal place for those passionate about making a difference in healthcare.

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Contact Details:

Jack & Jill Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior iOS Engineer (+ Equity) at Early

Join Local Tech Meetups

Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Jack & Jill or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!

Contribute to Open Source Projects

Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Jack & Jill.

Tap into Online Developer Communities

Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Jack & Jill.

Explore Job Boards Specifically for Tech Roles

Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Jack & Jill that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!

We think you need these skills to ace Senior iOS Engineer (+ Equity) at Early

Swift
SwiftUI
Core Bluetooth
HealthKit
AI-assisted development
Modern concurrency patterns
Production-ready application development

Some tips for your application 🫡

Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.

Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Jack & Jill.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Jack & Jill and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!

Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!

How to prepare for a job interview at Jack & Jill

Brush Up on Your Coding Skills

For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.

Know Your Tools and Frameworks

Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Jack & Jill uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.

Showcase Your Projects

Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.

Prepare for Behavioural Questions

While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.