AJ Bell, a leading UK investment platform, is seeking a Senior Mobile Engineer to develop high-performance mobile applications that serve millions of investors. Join our remote contract team to innovate in fintech and drive mobile-first experiences.

About AJ Bell

AJ Bell is one of the UK's largest investment platforms, empowering over 500,000 customers with easy access to investments, ISAs, and pensions. We're at the forefront of fintech innovation, and our mobile apps are central to delivering seamless user experiences.

The Role

As a Senior Mobile Engineer, you'll lead the design, development, and maintenance of our iOS and Android applications. You'll collaborate with product managers, designers, and backend teams to build features that enhance user engagement, security, and performance. This remote contract position offers the chance to work on high-impact projects using cutting-edge technologies in a fast-paced environment.

Key Responsibilities

• Architect and implement scalable mobile features from concept to deployment
• Optimize app performance, ensuring smooth UX on diverse devices
• Conduct code reviews, enforce best practices, and drive technical excellence
• Integrate with financial APIs, handling real-time data and secure transactions
• Troubleshoot issues, monitor analytics, and iterate based on user feedback
• Mentor team members and contribute to sprint planning

Why Join Us?

Work remotely with a talented team passionate about democratizing investing. AJ Bell offers a supportive culture, modern tech stack (SwiftUI, Jetpack, Firebase), and the opportunity to shape the future of personal finance.

• 5+ years of experience in mobile development, with expertise in native iOS (Swift) and Android (Kotlin/Jetpack Compose)
• Proficiency in mobile architecture patterns (MVVM, Clean Architecture) and state management
• Experience with RESTful APIs, GraphQL, and integrating with backend services
• Strong knowledge of CI/CD pipelines, App Store/Play Store deployment, and performance optimization
• Leadership skills to mentor junior engineers and lead cross-functional teams
• Familiarity with Agile methodologies and tools like Jira or Trello
• Excellent problem-solving skills and a passion for fintech

• Competitive monthly salary with performance bonuses
• Fully remote contract work offering flexibility
• 25 days annual leave plus bank holidays
• Private medical insurance and life assurance
• Pension contribution matching
• Professional development budget for courses and certifications
• Collaborative team environment with regular hackathons and social events