Senior Lead Software Engineer

Senior Software Lead / Hands-On Tech Lead | Consumer Wearables & Connected Hardware

Fully Remote (UK / Global Flexible)

£85,000 – £100,000 + Meaningful Equity

Are you an ambitious, hands-on Senior Developer or Technical Lead who loves getting into the code and connecting mobile software with physical hardware? We are partnering with a high-growth, globally distributed consumer technology scale-up (100+ team across UK, EU, Aus, and Asia) operating at the intersection of science, health, and human performance.

This is not a high-level managerial or corporate management role. They are looking for a hands-on Senior Software Lead who is passionate about coding, architecture, and execution day-to-day. As the company and app scale, your scope and responsibilities will grow organically alongside it.

The Opportunity

Working directly alongside the founders, head of product, head of science, and hardware teams, you will be the driving technical force behind their mobile platform.

Competitors are accelerating their app offerings, and this business needs a hungry, execution-focused lead to step in, write great code, speed up product development, and integrate software seamlessly with physical devices.

• 100% Hands-On Execution: Stay close to the codebase day-to-day—setting technical standards, building key features, and solving complex architectural challenges.
• Hardware/Software Bridge: Act as the direct technical link connecting mobile software to physical hardware via Bluetooth Low Energy (BLE).
• Team Guidance & Delivery: Work alongside and organize a small core of 3–4 internal developers and specialist external dev partners to ensure rapid, high-quality delivery.
• AI Tooling & Velocity: Embed modern AI development tools directly into your engineering workflow to maximize speed and code quality.
• Future Growth: Take ownership of a clean slate—as the product and app user base expand, your position and the engineering organization will evolve naturally around you.

What We Are Looking For

• Hands-On Mindset (Non-Negotiable): You must actively enjoy being in the code day in, day out, and be genuinely excited to stay hands-on as the company grows.
• Product Context: Background working in consumer wearables, smart products, connected devices, hoop/fitness tech, or IoT-based mobile apps.
• Tech Stack Familiarity: Hands-on experience with cross-platform mobile (Flutter/Dart), white-label codebase architectures, cloud backends (Firebase/Cloud Functions), and BLE device protocols.
• Practical AI Fluency: Active use of modern AI developer tools to accelerate personal and team productivity.
• Data Integration: Experience handling biometric, time-series, or physiological signal data pipelines (e.g., PPG) is a strong plus.

Package & Setup

• Salary: £85,000 – £100,000 base salary.
• Equity: Meaningful equity component in a fast-growing, globally distributed business.
• Work Setup: 100% Remote with high flexibility around working hours and location.

To Apply

If you are a hands-on developer ready to own technical delivery for an innovative connected hardware platform, submit your CV directly for a confidential discussion.