Principal Software Engineer, Hargreaves Lansdown
Solution Architect, Frontend & Mobile
+ Performance based bonus scheme
More information about location
1-2 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
Open for applications
+ Performance based bonus scheme
More information about location
1-2 days a week in office (Paddington Central, London)
1001+ employees
Company mission
To make it easy for people to save and invest for a better future.
Role
Who you are
- 10+ years of experience with Web / Front End & Mobile software engineering and at least 4+ years in a Principal Engineering or Solution Architect role or similar
- Deep understanding of Front End / Web and Mobile architecture approaches and design patterns including micro front ends, module federation, stateless, SPA and others
- Advanced knowledge of React and React Native Eco system and AWS technology stack
- Strong API/integration experience: REST / GraphQL, auth flows, contract design and resilience patterns
- Well versed in latest CI/CD practises and tools, deployment methodologies and experienced in tools to enforce quality standards
- Mastery of Webpack/Metro configurations, Babel and TypeScript
- Expertise in complex state management and understanding the nuances between DOM based and Native based styling/layouts
- Demonstrated ability to create clear and well written documentation for architecture, design patterns, rail guards and lead design governance
- Strong communication and articulation skills, capable of independently navigating an organization and able to negotiate and lead discussions across various levels and departments to develop consensus
What the job involves
- We’re building the next generation platform for one of the UK’s largest financial services companies, trusted by over 2 million clients and managing c.£150 billion in assets. This is your opportunity to shape technology that will redefine how people invest and achieve financial freedom
- You will build our next generation Unified Client Experience (UCX) frontend that will streamline client journeys across a range of products and services, in both web and mobile domains. It’s an opportunity to design, architect and build a modern frontend using latest technologies and best practices to transform our savings and investment platform
- The UCX team consolidates the efforts of the whole organisation, transforming client journeys and delivering on HL’s vision to give people financial freedom. You will work with like-minded people from business, product and engineering functions to develop and refine client journeys covering onboarding, KYC, account management and investment workflows in a secure and compliant environment
- By joining us, you’ll help deliver innovative and scalable solutions that make investing easier and more accessible to millions of users across the UK
- Set technical direction: Define & maintain Front-End/Web and mobile software architecture and patterns, engineering standards and the ‘right way’ to build greenfield HL state of the art web and mobile applications
- Own a technical ‘opinionated’ architecture for front end and mobile applications: shape application designs, rail guards and make trade-offs and prevent regret spend
- Define scalable and reusable UI component-based architecture, state management, routing/navigation, error handling, data fetching and modularization strategy
- Design, publish and own engineering standards including coding standards, CI/CD strategy, deployment blueprint, testing automation strategy, observability design and security baseline
- Design Integration strategies for HL web and mobile apps with existing and new systems to deliver a seamless client experience across a range of products and services
- Tackle high-impact problems: performance bottlenecks, reliability issues, scaling limits, complex integration, tech debt hotspots
- Lead through influence: Align stakeholders, run design reviews, drive decisions, own technical governance and unblock delivery teams
- Mentor and level-up others: Coach senior/leads and set strong bar for engineering excellence
- R&D: Stay at the forefront of the React/React Native ecosystem, evaluating new technologies, industry practises and guide the engineering delivery teams with adoption
Application process
- Stage 1 – Discussion with our Hiring Manager (30mins):
- A chance to talk with our Hiring Manager in more detail about the role, our tech stack and some of the problems we solve every day. Here, we’ll dig a bit more into some of your experiences, understand the processes you’re familiar with and the technologies you’ve used to deliver end user value
- Stage 2 – Technical (70mins):
- For the technical part, we’d like you to sit down with some of your potential peers to work through a technical solution or a coding problem. We’ll be looking together at where a sample piece of technology / code has issues and how we might address them
- Stage 3 - Culture Fit (30mins):
- In our Cultural Fit interview, we’ll be looking to learn more about your past experiences, what keeps you motivated, where we may be able to help you improve further, key decisions you’ve helped to make and issues you’ve resolved
- End Date: March 22, 2026
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
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
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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