Salary: £45,000 - 49,000 per year Requirements: 4 years of professional experience in mobile application development Strong understanding of mobile DevOps practices, including CI/CD pipelines, release management, and app store deployment processes Advanced software engineering skills, including writing high-quality code, conducting thorough code reviews, and proactively identifying anti-patterns and maintainability risks Proven ability to diagnose, troubleshoot, and resolve defects across the mobile application lifecycle Solid knowledge of Functional Reactive Programming (FRP) concepts and practical application in mobile architectures Strong grasp of software architecture principles, with experience using the C4 model or equivalent lightweight modelling techniques to communicate and document designs Experience developing and maintaining design systems, ensuring consistency, scalability, and reuse across mobile products Exceptional attention to detail with a track record of translating ambiguous problems into effective solutions, using rapid prototyping to validate ideas early Clear, thoughtful communicator who values active listening and intentional collaboration across roles and disciplines Comfortable working autonomously while contributing effectively within cross-functional teams Strong passion for mobile UX and building inclusive products, with working knowledge of accessibility best practices and relevant standards High ownership and accountability, with a proactive mindset and strong initiative to identify and deliver high-impact improvements Responsibilities: Work in a product-centric role to develop, shape, and iterate customer-facing Flutter applications Collaborate with product owners, product managers, UX designers, and other software engineers to architect solutions and write technical documents that identify software project requirements Write well-formulated, testable, and readable code using appropriate software paradigms Lead the evolution of development in the team through pairing with others, reviewing pull requests, and advocating development standards Ensure that accessibility is at the forefront of our approach Mentor and develop junior team members Build strong relationships across cross-functional teams, particularly within product and UX design teams Focus on overall company goals rather than just building specific features Technologies: Architect CI/CD DevOps Flutter Mobile UX UI Design More: At AJ Bell, we are one of the UKs fastest-growing investment platform businesses, providing award-winning solutions for everyone from professional financial advisers to first-time investors. Today, over 723,000 customers trust us to manage more than £108.7 billion of assets. We continuously strive to make investing simpler and more accessible, empowering more people to take control of their financial futures. We have been recognized as one of the UKs Best 100 Companies to Work For for six consecutive years and named a Great Place to Work in 2025 and 2026, reflecting our supportive and collaborative culture. We offer 26 days of holiday (increasing with service), a robust pension scheme, a discretionary bonus scheme, and a range of additional benefits, including a health cash plan, free onsite gym, and enhanced family leave. We value inclusion and diversity and welcome applications from all backgrounds. last updated 20 week of 2026