Senior Lead Mobile Engineer (iOS/Android Architect)

JPMorganChase; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

JPMorganChase’s digital Chase UK unit is building a native mobile platform for iOS and Android from scratch. As a Senior Lead Mobile Software Engineer, you will define the technical direction, contribute production code, and provide day-to-day leadership for both mobile teams.

This architect-level role demands hands-on delivery, strong collaboration with Product, Design, Backend, Security, and QA, and a relentless focus on performance, security, and reliability.

Qualifications

• Extensive experience delivering native mobile applications in both IOS and Android.
• iOS (Swift) experience to include modern iOS architecture patterns and Apple frameworks.
• Android (Kotlin) experience to include modern Android architecture patterns and Jetpack components.
• Proven experience operating at a senior technical lead level: making system-level design decisions and driving adoption across teams.
• Strong knowledge of mobile fundamentals: performance, memory management, concurrency, offline-first patterns, networking, app lifecycle, and secure storage.
• Strong engineering practices: writing clean, testable code; effective code reviews; pragmatic documentation; and continuous improvement.
• Strong experience with API-driven apps (REST, GraphQL) and collaboration with backend teams on contracts and integration patterns.
• Track record of raising the bar on quality engineering: test strategy, automation, code review discipline, and CI/CD improvements.
• Experience working in an agile environment and collaborating with geographically distributed teams.
• Strong stakeholder management and communication skills; ability to align across multiple teams and priorities.

Responsibilities

• Own and evolve the end-to-end mobile architecture across iOS and Android, including app modularization, cross-cutting platform capabilities, and long-term scalability.
• Provide technical leadership across both mobile teams (iOS and Android): set standards, drive alignment, and ensure consistent implementation of shared patterns and practices.
• Remain hands-on: build and review core platform components, unblock complex engineering challenges, and contribute to key customer journeys.
• Partner with Product, Design, Backend, Security, Risk, and QA to translate business goals into robust technical solutions and delivery plans.
• Define and enforce a high bar for engineering excellence: code quality, maintainability, security, performance, accessibility, and reliability.
• Establish and improve mobile SDLC practices: planning, development, peer review, testing, release management, and operational support.
• Lead the mobile testing and quality strategy (unit/integration/UI automation) and drive measurable improvements in stability and release confidence.
• Own mobile build/release and operational maturity: CI/CD pipelines, distribution, feature flags, observability, crash/performance monitoring, and incident response.
• Mentor and coach engineers; support team growth through feedback, technical guidance, and strong engineering culture.
• Communicate clearly with senior stakeholders on technical trade-offs, progress, risks, and dependencies.

Skills

iOS development

Android development

Swift

Kotlin

Architectural leadership

Cross-team collaboration

API-driven apps

Agile

Tools

Jetpack Components

REST

GraphQL

Job description

JPMorganChase’s digital Chase UK unit is building a native mobile platform for iOS and Android from scratch. As a Senior Lead Mobile Software Engineer, you will define the technical direction, contribute production code, and provide day-to-day leadership for both mobile teams.

This architect-level role demands hands-on delivery, strong collaboration with Product, Design, Backend, Security, and QA, and a relentless focus on performance, security, and reliability.