Senior Software Engineer (React Native)
<p><b>Salary: £62,000 - 90,000 per year</b></p>
<b>Requirements:</b>
<ul><li>8 years of professional mobile development experience, with 5 years using React Native.</li><li>Strong knowledge of JavaScript/TypeScript, ES6 features, and modern React patterns.</li><li>Experience integrating third-party libraries, analytics tools, and mobile SDKs.</li><li>Strong understanding of secure mobile development, especially within financial or regulated environments.</li><li>Familiarity with state management.</li><li>Experience with CI/CD pipelines for mobile apps.</li><li>Strong debugging skills, including performance profiling and memory optimization.</li><li>Excellent communication skills and experience working in agile environments.</li><li>Experience with native iOS (Swift) or Android (Kotlin/Java) is a plus.</li><li>Experience in fintech or banking applications is a plus.</li><li>Familiarity with feature driven modular architecture is a plus.</li><li>Experience working with feature flags is a plus.</li><li>UI automation testing experience is a plus.</li></ul>
<b>Responsibilities:</b>
<ul><li>Build and maintain a high-quality React Native application.</li><li>Architect scalable mobile solutions that meet the demands of financial applications (security, performance, reliability).</li><li>Integrate with RESTful and GraphQL APIs and collaborate closely with backend teams.</li><li>Optimize app performance, including memory usage, load times, and smooth UI interactions.</li><li>Implement high-security standards such as encryption, biometrics, and secure data storage.</li><li>Lead code reviews, share best practices, and mentor junior developers.</li><li>Work cross-functionally with designers, PMs, and QA to deliver features end-to-end.</li><li>Stay up to date with the latest in React Native and mobile technologies.</li></ul>
<b>Technologies:</b>
<ul><li>Android</li><li>Architect</li><li>Backend</li><li>CI/CD</li><li>ES6</li><li>GraphQL</li><li>Java</li><li>JavaScript</li><li>Kotlin</li><li>Mobile</li><li>React</li><li>React Native</li><li>Security</li><li>Swift</li><li>TypeScript</li><li>iOS</li><li>UX UI Design</li><li>AI</li><li>Cloud</li><li>Support</li></ul>
<p><b>More:</b></p>
<p>We are HL, the UKs largest direct-to-consumer savings and investment platform, trusted by over 2 million clients and administering more than £172 billion in assets. Founded in 1981 and headquartered in Bristol, our mission is to help people achieve financial freedom by providing a secure home for their savings and investments. We are a market-leading financial services innovator offering a competitive salary and performance-based bonuses, alongside excellent benefits including a pension contribution up to 19%, private medical insurance, and lifestyle perks. Our stunning Paddington Central offices feature landscaped rooftop gardens, wellness amenities, and unbeatable transport links, supporting a hybrid working model that balances collaboration with personal productivity.</p>
<p>last updated 8 week of 2026</p>
<b>Requirements:</b>
<ul><li>8 years of professional mobile development experience, with 5 years using React Native.</li><li>Strong knowledge of JavaScript/TypeScript, ES6 features, and modern React patterns.</li><li>Experience integrating third-party libraries, analytics tools, and mobile SDKs.</li><li>Strong understanding of secure mobile development, especially within financial or regulated environments.</li><li>Familiarity with state management.</li><li>Experience with CI/CD pipelines for mobile apps.</li><li>Strong debugging skills, including performance profiling and memory optimization.</li><li>Excellent communication skills and experience working in agile environments.</li><li>Experience with native iOS (Swift) or Android (Kotlin/Java) is a plus.</li><li>Experience in fintech or banking applications is a plus.</li><li>Familiarity with feature driven modular architecture is a plus.</li><li>Experience working with feature flags is a plus.</li><li>UI automation testing experience is a plus.</li></ul>
<b>Responsibilities:</b>
<ul><li>Build and maintain a high-quality React Native application.</li><li>Architect scalable mobile solutions that meet the demands of financial applications (security, performance, reliability).</li><li>Integrate with RESTful and GraphQL APIs and collaborate closely with backend teams.</li><li>Optimize app performance, including memory usage, load times, and smooth UI interactions.</li><li>Implement high-security standards such as encryption, biometrics, and secure data storage.</li><li>Lead code reviews, share best practices, and mentor junior developers.</li><li>Work cross-functionally with designers, PMs, and QA to deliver features end-to-end.</li><li>Stay up to date with the latest in React Native and mobile technologies.</li></ul>
<b>Technologies:</b>
<ul><li>Android</li><li>Architect</li><li>Backend</li><li>CI/CD</li><li>ES6</li><li>GraphQL</li><li>Java</li><li>JavaScript</li><li>Kotlin</li><li>Mobile</li><li>React</li><li>React Native</li><li>Security</li><li>Swift</li><li>TypeScript</li><li>iOS</li><li>UX UI Design</li><li>AI</li><li>Cloud</li><li>Support</li></ul>
<p><b>More:</b></p>
<p>We are HL, the UKs largest direct-to-consumer savings and investment platform, trusted by over 2 million clients and administering more than £172 billion in assets. Founded in 1981 and headquartered in Bristol, our mission is to help people achieve financial freedom by providing a secure home for their savings and investments. We are a market-leading financial services innovator offering a competitive salary and performance-based bonuses, alongside excellent benefits including a pension contribution up to 19%, private medical insurance, and lifestyle perks. Our stunning Paddington Central offices feature landscaped rooftop gardens, wellness amenities, and unbeatable transport links, supporting a hybrid working model that balances collaboration with personal productivity.</p>
<p>last updated 8 week of 2026</p>