Mobile Team Tech Lead, London, Contractor

Company: ION Group
Apply for the Mobile Team Tech Lead, London, Contractor
Location: London
Job Description:

Overview

In this on-site Mobile Team Tech Lead role, you drive the technical direction and delivery of complex mobile projects for Lab49’s financial services clients. You will design and ship high-quality iOS and Android apps, mentor engineers, and align technical decisions with business goals. You’ll work closely with stakeholders to ensure scalable, user-friendly experiences on banking platforms, including onboarding and money movement, with a focus on greenfield mobile capabilities and market expansion.

Responsibilities

  • Design and deliver iOS/Android applications from a product and technical perspective
  • Steer architecture and engineering best practices across the team
  • Lead and mentor engineers to improve autonomy and delivery quality
  • Collaborate with client stakeholders, designers, product partners, and leadership
  • Contribute to process improvements and adopt new technologies
  • Maintain on-site presence with direct client interactions and accountability
  • Ensure delivery aligns with business objectives and regulatory requirements

Key requirements

  • 10-12+ years of software development experience
  • 4+ years leading Agile/engineering teams
  • Proficiency in Swift and native iOS toolchain (SwiftUI, UIKit, SwiftData, Swift Concurrency)
  • Experience in consumer banking onboarding and account management
  • RESTful API integration and third-party libraries
  • Knowledge of CI/CD for mobile applications
  • Strong mobile UI/UX understanding and user-centric design
  • Excellent communication and stakeholder influence
  • strong communication
  • leadership
  • ownership
  • Swift
  • SwiftUI
  • UIKit

…

Posted: October 5th, 2026