Mobile Team Tech Lead, London, Contractor
London · 4+ years experience · Contract · Onsite · Posted Oct 2, 2026
At a glance
- Experience
- 4+ years experience
- Employment
- Contract
- Workplace
- Onsite
- Location
- London
About the role
- Lab49 is looking for a Mobile Team Tech Lead to play a critical role on key projects for clients, designing innovative applications that solve complex problems and enhance performance.
- This is a hands-on leadership role where you will own the technical direction and delivery of client engagements, guide architectural decisions, and design systems.
- You will help build and modernize large-scale consumer banking experiences, focusing on areas such as customer onboarding, account management, and money movement.
Responsibilities
- Design, implement, deliver, and test innovative iOS and Android applications while understanding products from both a technical and product perspective.
- Actively contribute to the adoption of strong software architecture, engineering best practices, and new technologies.
- Lead the development of new mobile capabilities designed to support expansion into new markets and evolving regulatory requirements.
- Own the technical direction and delivery of client engagements while multiplying the effectiveness of surrounding engineers.
- Design systems, write code when it matters most, guide architectural decisions, and ensure high-quality outcomes.
- Work closely with client stakeholders, designers, product partners, and Lab49 leadership to ensure technically sound solutions.
- Leverage AI-assisted development tools to improve team velocity and code quality, and help the team adopt them responsibly.
Requirements
- 10-12+ years of experience designing and building complex, commercial-grade software systems
- 4+ years leading Agile teams
- Proficiency in Swift and experience with native iOS development tools such as SwiftUI, UIKit, SwiftData, Swift Concurrency (async/await)
- Experience in consumer banking including account management and onboarding
- Familiarity with integrating RESTful APIs and third-party libraries
- Experience with agile development methodologies
- Knowledge of continuous integration and continuous deployment (CI/CD) pipelines for mobile applications
- Understanding of mobile UI/UX principles and best practices
- Excellent communication skills with the ability to influence both technical and non-technical stakeholders
Workplace
- On-site role
- 5 days/week at the office in London or Birmingham, UK
Skills
- Swift
- SwiftUI
- UIKit
- SwiftData
- Swift Concurrency
- Kotlin
- Jetpack Compose
- Kotlin Coroutines
- MVI
- RESTful APIs
- CI/CD
- AI-assisted Development Tools
