Job Description

We are working with a fast-growing health-tech business that is looking to hire a Senior Mobile Developer to join their talented engineering team. This is a pivotal hire that will act as a bridge between the Android and iOS development teams, while driving forward a strategic initiative to adopt Kotlin Multiplatform (KMP) to improve efficiency and code quality across both platforms.

This role offers the chance to make a significant impact on a product that helps people in meaningful ways, while working with modern mobile technologies in a collaborative environment.

Key Responsibilities

Feature Development: Design, develop, and implement new features for cross-platform mobile applications (Android & iOS) with a focus on quality and user experience. Cross-Platform Collaboration: Partner closely with Android and iOS developers to ensure consistency and best practices across platforms. Kotlin Multiplatform Strategy: Lead the adoption and implementation of KMP to create a shared backend codebase. Technical Leadership: Provide guidance and mentorship within the mobile team, acting as a go-to technical authority. Product Collaboration: Work closely with product managers, designers, and other stakeholders to deliver robust solutions. Code Quality: Champion best practices including code reviews, unit testing, and CI/CD. Innovation: Keep on top of emerging trends and recommend relevant new tools or approaches.

About You

Proven experience as a Senior Mobile Developer with a portfolio of shipped Android and iOS applications. Strong expertise in Kotlin, with good working knowledge of Swift. Experience with, or strong interest in, Kotlin Multiplatform (KMP). Deep understanding of mobile architecture patterns (e.g., MVVM, MVI) and a passion for clean, testable code. Experience in application architecture and contributing to long-term technical decisions. Excellent communication and collaboration skills to bridge cross-platform teams. Experience working in Agile development environments.

What's in it for you?

Opportunity to lead on a strategic cross-platform initiative (KMP). Influence and implement features throughout the development lifecycle. Collaborate daily with talented engineers, product managers, and designers. Contribute to code reviews and help define engineering standards. A role with genuine impact, where your work improves people's everyday lives.
There will be a requirement to be in their office in Moorgate, London - therefore candidates within close proximity would be well suited.

Job Types: Full-time, Permanent

Pay: 50,000.00-80,000.00 per year

Ability to commute/relocate:

London EC2R: reliably commute or plan to relocate before starting work (required)
Work authorisation:

United Kingdom (required)
Work Location: Hybrid remote in London EC2R