Senior Software Engineer (React Native)

Excited to grow your career? Our purpose is to make it easy for people to save and invest for a better future. We are looking for great people to join us, so please come and invest in YOUR future at Hargreaves Lansdown. We know that sometimes people can be put off applying for a job if they don't tick every box. If you're excited about working for us and have most of the skills or experience we're looking for, please go ahead and apply. We’d love to hear from you! About the role We are building a next-generation platform for one of the UK's leading financial services providers — trusted by over 2 million clients and managing approximately £150 billion in assets. This is a unique opportunity to shape technology that transforms how people invest and achieve financial freedom. We are looking for a Senior Software Engineer – React Native to join our Dealing Journeys squad, delivering critical capabilities at the heart of the investment experience. You will join our Trading Tribe — a domain responsible for end-to-end investment journeys, from pre-trade decision-making and order placement through to trade execution, delivering fast, reliable and seamless investing experiences at scale. In this role, you will play a leading part in building exceptional mobile and web experiences using React Native and React, helping to shape the future of investing for millions of clients. While your primary focus will be on mobile engineering, you will work across the full technology stack, contributing to APIs, backend services and cloud-native platforms running on AWS. As a senior engineer, you will help define technical direction, drive engineering excellence and champion modern development practices. Working closely with engineers, product managers and designers, you will solve complex technical challenges while delivering intuitive, performant and reliable user experiences. You'll be part of a culture that values ownership, collaboration and continuous improvement, where you can influence architecture, mentor others and contribute to technology decisions that have a meaningful impact on the business and our clients. By joining us, you will help deliver innovative, scalable solutions that make investing simpler, faster and more accessible to millions of users across the UK. Be part of HL's future. Be part of the future of investing. Shape it with us. What you'll do Design, build and maintain high-quality mobile applications using React Native and TypeScript , adhering to engineering, security and regulatory standards Lead technical discovery, solution design and implementation planning for new features and platform improvements Collaborate closely with engineers, product managers and designers to deliver exceptional mobile experiences for our clients Integrate mobile applications with backend services and APIs to deliver seamless end-to-end customer journeys Ensure solutions are reliable, secure, performant, scalable and maintainable through modern engineering practices Drive engineering excellence through architecture reviews, code reviews, automated testing and continuous improvement initiatives Own and optimise application performance, reliability, observability and state management Build and enhance CI/CD pipelines and mobile release processes Troubleshoot complex technical issues and support the ongoing evolution of large-scale enterprise applications Use application metrics and monitoring data to identify opportunities for improvement and proactively address issues Share knowledge, mentor other engineers and actively contribute to engineering communities of practice Continuously develop your technical and interpersonal skills while helping to foster a culture of collaboration, learning and innovation What you bring 5+ years of experience developing enterprise-scale mobile applications with React Native and TypeScript Strong understanding of mobile application architecture, design patterns and scalable engineering practices Experience working with React Native styling solutions such as StyleSheet, Styled Components or Unistyles Hands-on experience integrating applications with REST APIs and/or GraphQL Strong understanding of state management patterns and solutions such as Redux, MobX or equivalent Practical experience with automated testing frameworks including Jest, Detox and Testing Library Strong debugging and troubleshooting skills across complex mobile applications Experience working with brownfield applications and evolving large production systems Experience building and maintaining mobile CI/CD pipelines and release processes Strong focus on code quality, security, performance and maintainability Excellent collaboration and communication skills, with the ability to work effectively within cross-functional Agile teams Nice to have Experience developing native mobile applications using Swift (iOS) and/or Kotlin (Android) Experience working with the React Native New Architecture (Fabric, TurboModules and JSI) Experience publishing and maintaining applications on the Apple App Store and Google Play Store Familiarity with mobile analytics, crash reporting and performance monitoring tools Experience working within highly regulated industries such as financial services What Success Looks Like You'll take ownership of complex features from concept to production, collaborate effectively across disciplines, and help deliver reliable, scalable and intuitive investment experiences while raising engineering standards across the team. Why us? Here at HL, we’re the UK’s number 1 investment platform for private investors, based in Bristol. For more than 40 years we’ve helped investors save time, tax and money on their investments. To achieve our mission, we believe we have a workplace like no other, with constant learning, dynamic teams, and a great ethos. We're steered by core values that promote service, quality, innovation, and opportunity in everything we do. What's on offer? Discretionary annual bonus * and annual pay review 25 days * holiday plus bank holidays and 1-day additional Christmas closure Option to purchase an additional 5 days holiday ** Flexible working options available, including hybrid working Enhanced parental leave Pension scheme up to 11% employer contribution Income Protection and Life insurance (4 x salary core level of cover) Private medical insurance* Health care cash plans - including optical, dental, and out patient care Health screening programme Help@hand - confidential support including mental health counselling and remote GP Wellhub - unlimited access to fitness provider s and w ellness c oach sessions Variety of travel to work schemes with bike storage and shower facilities Inhouse barista and deli serving subsidised coffee and sandwiches T wo paid volunteering days per year * dependant on role level ** only available to select during our annual benefits window, in November each year ​ Hargreaves Lansdown is an inclusive employer that values diversity in its workforce. We encourage applications from all individuals without regard to race, religion, gender, sexual orientation, national origin, disability or age. This role may also be available on a flexible working or part time basis – please ask the Recruitment & Onboarding team for more information. Please note, we are unable to provide employment sponsorship to candidates.