iOS & Embedded Systems Engineer - Package up to £150,000 - ID41148 (Greater London)

iOS & Embedded Systems Engineer - Package up to £150,000

Build Bold Technology. Make a Real-World Impact.

Are you a hands-on iOS developer with a passion for building apps that talk to hardware?

Do you enjoy working across the boundaries of software and firmware, where mobile UX meets embedded logic?

Do you want to build purposeful tech that blends deep engineering with real-world outcomes?

If so, read on.

Why This Role Is Different

Our client is a fast-growing Tech-for-Good start-up born from world-class research and backed by serious ambition. They’re developing a first-of-its-kind product that seamlessly blends embedded hardware with a Swift-based iOS app.

As a key engineer in a small, elite team, you’ll help architect and build the mobile interface while collaborating closely with the firmware team to ensure everything works in harmony. You'll work end-to-end, from BLE data syncing to delightful user interactions.

This is a role for someone who wants to build meaningful, cross-disciplinary tech from the ground up and see their work deployed into the world.

What You'll Be Doing

• Design and build a Swift-based iOS application that interacts with custom hardware via Bluetooth (BLE).
• Collaborate with firmware engineers to develop reliable, efficient communication protocols.
• Shape the app’s architecture and ensure clean, scalable, testable code.
• Work closely with UX designers and product leads to turn complex functionality into elegant user experiences.
• Contribute to embedded firmware in C or C++ , particularly around device communication or feature testing.
• Participate in architectural discussions spanning embedded, mobile, and cloud layers.
• Help foster a high-performing engineering culture grounded in clarity, ownership, and impact.

About You

You’re a product-minded iOS developer who enjoys going beyond the app — diving into what’s under the hood and collaborating with hardware teams. You love turning real-world complexity into fluid, user-friendly software.

You likely have:

• 5+ years of software engineering experience , with strong recent work in Swift and iOS development .
• Proven experience building iOS apps that communicate with external hardware (BLE, USB, etc.).
• Familiarity with embedded C/C++, enough to read, understand, and contribute to firmware projects.
• A strong grasp of mobile design patterns, memory/performance constraints, and networking.
• Experience collaborating in Agile, multi-disciplinary teams .
• A detail-oriented, proactive approach with clear communication and a user-focused mindset.
• Bonus: exposure to real-time systems, hardware prototyping, or SwiftUI.

Even if you don't tick every box but love this kind of work, we'd still love to hear from you.

What You’ll Get

• A chance to work on truly impactful tech. Combining software, hardware, and human-centered design.
• Flexible working hours and hybrid office/home arrangements.
• Daily lunch provided on-site (plus dinner if you stay late).
• Regular team events, off-sites, and meaningful community outreach.
• Access to a full workshop (3D printers, CNC, electronics bench) for both company and personal projects.
• Office located minutes from a major tube line, with gym and climbing wall nearby.