Senior Software Engineer, Hargreaves Lansdown

React Native - UCX

Salary not provided

+ Performance-based bonus scheme

React

TypeScript

React Native

JavaScript

GraphQL

Java

iOS

Android

Kotlin

Swift

REST API

Senior and Expert level

London

More information about location

2-3 days a week in office (Paddington Central, London)

The UK's number one investment and savings platform for private investors

Open for applications

The UK's number one investment and savings platform for private investors

1001+ employees

B2CFinancial Services

Open for applications

Salary not provided

+ Performance-based bonus scheme

React

TypeScript

React Native

JavaScript

GraphQL

Java

iOS

Android

Kotlin

Swift

REST API

Senior and Expert level

London

More information about location

2-3 days a week in office (Paddington Central, London)

1001+ employees

B2CFinancial Services

Company mission

To make it easy for people to save and invest for a better future.

Job

Company

Role

Who you are

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
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!

Desirable

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

What the job involves

As a Senior Software Engineer, 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 Engineers, and drive best practices across our mobile engineering discipline
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
This is a full-time role, working 37.5 hours per week, Monday to Friday

Application process

End Date: March 22, 2026
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 Interview (60–90 mins)
A hands-on deep dive into your React Native expertise, covering coding, architecture, and problem-solving
Stage 3 – System Design (60–90 mins)
A high-level design discussion where you outline how you’d architect and scale a complex mobile feature or system

Salary benchmarks

Our take

Hargreaves Lansdown is the UK's number one investment platform for private investors, trusted by 2M people to help manage their money. Founded back in 1981 in a spare bedroom, it's grown into a powerhouse, and with more than £170B in assets under its administration, it's become the biggest name in DIY investing in the country.

The company offers a wide range of services that include Stocks and Shares ISAs, pensions (SIPPs), savings accounts, and a market-leading investment app, making it easy for everyday people to invest, save, and better plan for their retirement.

Recently, HL was taken private in a £5.4B deal, with new leadership aiming to modernise and future-proof the business. And despite more competition from digital challengers, it continues to thrive, adding more customers, launching new features, and paying strong dividends. On top of that, it's got over 40 years of experience and a forward-thinking team driving it towards even more success.

Freddie

Company Specialist at Welcome to the Jungle

Insights

Trustpilot (4.4)

Company

Company benefits

Generous Discretionary Annual Bonus
Up to 19% Pension
Private Medical Insurance*
Health Cash Plan
Income Protection
Life Assurance (4x Salary)
Additional Holiday Purchase

Company HQ

Canon's Marsh, Bristol, UK

Articles

Peter Hargreaves to step down from Hargreaves Lansdown board

Leadership

Richard Flint

(CEO)

Previously, Richard spent over 5 years at Sky Betting & Gaming as CEO and an Executive Chair. Prior to that, he spent over 13 years at Sky as a Managing Director. Now, he is an Investor and Chairperson at a number of companies.

Mohamed Ait Si Brahim

(Group CTO)

Mohamad is also a Member of the Harvard Business Review Advisory Council. Previously, he spent over 7 years at Profile Pensions as CTO. Prior to that, he was a VP of Engineering at OpenGamma and Head of Market Risk Technology at LSEG.

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