Senior Mobile App Engineer

Mobile App Developer

• London, United Kingdom
• Employees work in a hybrid mode
• Full-time
• Department: Engineering

Company Description

Shawbrook is a specialist bank driven by a purpose to power up ingenuity to create opportunity, every single day.

We offer a diverse range of savings and loan products. From personal and business savings accounts and loans for wedding and new cars, to complex financial credit facilities for businesses requiring significant investment and mortgages for landlords with multiple properties – no two customers are ever the same.

We give our customers the best-of-both worlds; uniquely combining strong digital capabilities with human expertise and ingenuity to deliver the best outcomes. We rise to the challenge of a complex case or unconventional circumstances, and we love to make things happen. By being creative, practical, and personal, we know we can always find the right solution for our customers.

If you’re willing to roll up your sleeves, contribute new ideas and believe anything is possible, you’re our kind of person

Work with us because you:

• Want to be part of a bank built for the dynamics of the modern world

Job Description

We are looking for a Senior Mobile Engineer with strong experience in React Native and Expo, capable of end-to-end mobile development. You’ll help define the technical direction, establish internal capability, and deliver a secure, production-ready mobile banking app across iOS and Android. Prior success publishing apps to the Apple App Store and Google Play Store is essential.

Key Responsibilities

Delivery & Collaboration

• Work with the Tech Lead to shape and deliver the mobile MVP
• Partner with product, design, and technology leadership to define and deliver core customer journeys.
• Provide guidance on mobile development standards, tooling, and patterns.

Mobile Application Development

• Build and maintain high-quality mobile experiences using React Native and Expo.
• Implement secure and reliable user flows, ensuring compliance with platform and regulatory expectations.
• Integrate with backend services and external partners where required.

Quality, Testing & Performance

• Ensure robust testing practices and high levels of reliability across supported devices.
• Monitor and improve app performance, stability, and overall user experience.
• Support troubleshooting, incident resolution, and continuous improvement initiatives.

Security & Operational Readiness

• Apply modern mobile security practices and ensure the app meets security, compliance, and privacy requirements.
• Support operational readiness of the app through monitoring, observability, and release management.

Qualifications

• Experience with React Native and Expo.
• Proven track record of publishing apps to both Apple and Google app stores.
• Deep understanding of secure mobile authentication (OAuth2/OIDC PKCE, biometrics, SCA).
• Hands-on experience with mobile security best practices and secure storage.
• Strong background in CI/CD, automated testing, and mobile observability.
• Excellent communication skills and capability in cross-functional teams.

Additional Information

Your Wellbeing - We take your health and well-being very seriously by providing a range of benefits to give you and your family peace of mind. These include:

• Market leading family friendly policies such as access to our Maternity, Adoption and Paternity policies from Day 1 of your employment
• Free access to Headspace, a mindfulness & meditation digital health app
• Free access to Peppy digital health app that offers personalised support through fertility treatment becoming a parent or menopause
• EAP (Employee Assistance Programme) - Offering you support on a wide range of subjects including financial concerns, mental wellbeing and more general queries around family, work, housing, and health

Your Lifestyle - It’s important you strike the right balance between your work and personal life. We provide benefits to support you when at work and when you’re enjoying your leisure time.

• Minimum of 27 days holiday per year
• Option to buy or sell holiday days through our flexi-holiday scheme
• Discounts on gym membership nationwide
• Access to discounts on a range of high street and online brands
• Community support and charitable giving

Your Contribution - We’re focused on rewarding those that go the extra mile in helping us achieve our goals.

• Participation in our annual discretionary bonus scheme designed to reward your contribution to our success
• Proudly Shawbrook recognition scheme focused on recognising our role models and thanking our colleagues for a job well done