Hargreaves Lansdown
Senior Software Engineer
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About the Role
As a Senior React Native Developer, you will lead the development of our mobile applications, ensuring they are reliable, secure, scalable, and delightful to use. You'll collaborate with product managers, designers, backend engineers, QA automation engineers to support a part of the HL platform. You'll have the opportunity to influence architectural decisions, mentor other developers, and drive best practices across our mobile engineering discipline.
What You'll Do
- Build and maintain a high-quality React Native application.
- Architect scalable mobile solutions that meet the demands of financial applications (security, performance, reliability).
- Integrate with RESTful and GraphQL APIs and collaborate closely with backend teams.
- Optimize app performance, including memory usage, load times, and smooth UI interactions.
- Implement high-security standards such as encryption, biometrics, and secure data storage.
- Lead code reviews, share best practices, and mentor junior developers.
- Work cross-functionally with designers, PMs, and QA to deliver features end-to-end.
- Stay up to date with the latest in React Native and mobile technologies.
What We're Looking For
- 8+ years of professional mobile development experience, with 5+ years using React Native.
- Strong knowledge of JavaScript/TypeScript, ES6+ features, and modern React patterns.
- Experience integrating third-party libraries, analytics tools, and mobile SDKs.
- Strong understanding of secure mobile development, especially within financial or regulated environments.
- Familiarity with state management.
- Experience with CI/CD pipelines for mobile apps.
- Strong debugging skills, including performance profiling and memory optimization.
- Excellent communication skills and experience working in agile environments.
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Nice to Have
- Experience with native iOS (Swift) or Android (Kotlin/Java).
- Experience in fintech or banking applications.
- Familiarity with feature-driven modular architecture.
- Experience working with feature flags.
- UI automation testing experience.
Interview Process
Stage 1 - Discussion with our Hiring Manager (30 mins)
A brief conversation to explore your background, motivations, and fit for the team and role.
Stage 2 - Technical take home exercise (1 week)
A take-home project that needs to be extended, fixed, and improved which can showcase at what level your React Native ability is at.
Stage 3 - Technical interview (60-90 mins)
In the session, we will walk through your coding challenge submission and ask you different questions around coding, architecture, security, and problem-solving.
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Working Schedule
We're based in the stunning Paddington Central offices at 4 Kingdom Street, a modern workspace designed to energize your day and elevate collaboration.
What Makes It Special?
- 🌿 Landscaped rooftop gardens - perfect for a breath of fresh air or informal catch-ups.
- 🏀 London's highest rooftop basketball court - yes, really!
- ☕ On-site café and bar with sweeping views across West London.
- 🧘♀️ Wellness amenities including showers, lockers, hairdryers, and fresh towels.
- 🚲 Cyclist-friendly with secure bike storage and drying rooms.
- 🛋️ Stylish lounge areas, booths, and breakout spaces for focused work or relaxed chats.
- 🌊 Canalside location near Little Venice, with floating restaurants, coffee shops, and a seasonal pop-up garden bar.
- 🚆 Unbeatable transport links - just steps from Paddington Station and the Elizabeth Line, with Heathrow only 30 minutes away.
We embrace a hybrid working model that gives you the best of both worlds:
- 2-3 days a week in the office to connect, collaborate, and enjoy everything the space has to offer.
- Remote flexibility for deep focus, work-life balance, and personal productivity.
This is a full-time role, working 37.5 hours per week, Monday to Friday.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
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