Senior Software Engineer - Active Savings

Work the way you want - fully remote from anywhere in Poland/the UK or hybrid from our modern offices. Healthy work-life balance - we value your time, which means no overtime culture. Be part of something big - your work directly supports a market leader trusted by millions. Supportive, knowledge-sharing team - collaborate with experienced engineers who are passionate about clean code, best practices, and continuous learning. Modern tools & technologies - develop enterprise-scale solutions in a tech-driven environment. Develop and maintain mobile applications using React Native, React and TypeScript Frequently lead scoping of initiatives, consider boundaries and non-functional requirements Propose ideas, contribute to technology choices, and present solutions to the team Foster a culture of implementing commonly understood design patterns and processes Integrate with backend services via REST API and/or GraphQL Work with React Native's new architecture , applying best practices for scalability and performance Write unit and integration tests using tools like Jest , Detox , and Testing Library Optimize the performance of mobile applications Implement and manage state management solutions (e.g., Redux , Mobx ) Collaborate with backend teams and designers to ensure consistency and high-quality deliverables Strategically improve CI/CD processes and deployment strategies Troubleshoot complex technical issues and help scale mobile applications Actively participate in the Scrum process (stand-ups, retrospectives, and technology discussions). Experience with architecture and design patterns. Familiarity with different styling solutions (StyleSheet, Styled Components, Unistyles). Efficient React Native debugging skills - ability to troubleshoot and resolve complex issues with React Native applications using debugging tools, logs, and error tracking. Practical knowledge of JavaScript and testing frameworks (Jest, Detox, Testing Library) . Experience in Brownfield Development . Experience working with REST API and/or GraphQL . Understanding of state management patterns and solutions like Redux and Mobx . Knowledge of native iOS development (Swift, SwiftUI, Combine) and Android development (Kotlin). Proficiency in using native build tools like Xcode , Gradle , and Android Studio .At least 5 years of experience working with React Native, React and TypeScript including enterprise-grade experience (experience with large app decomposition, layers separation, and scalable architecture for enterprise-level applications). Experience integrating mobile apps with external services . Experience with TurboModules and TurboComponents . Experience with accessibility (a11y) best practices in mobile apps, including WCAG compliance and keyboard navigation support. Experience with UX/UI design best practices. Collaborative and communicative - you work well with others, share knowledge, and express ideas clearly. Solution-oriented and creative - you tackle challenges with practical, innovative solutions. Quality-driven with a continuous improvement mindset - you take pride in delivering clean, secure, and maintainable code while seeking ways to improve. Eager to learn and adapt - you embrace new ideas and grow with your team. Comfortable in Agile environments - you thrive in cross-functional collaboration and value constructive feedback. dependant on role level only available to select during our annual benefits window, in November each yearHargreaves Lansdown is the UK's number one platform for private investors. Our purpose is to empower people to save and invest with confidence, and today, we are trusted with more than £120 billion by over 1.7 million clients.We are based in the heart of Bristol now with over 2,000 colleagues. We believe we have a workplace like no other, with constant learning, dynamic teams and a great ethos. We're steered by our core values that promote service, quality, innovation, and opportunity in everything we do.For more information about careers at HL and to see all our vacancies, please visit our .