Senior Frontend Engineer - React/React Native | UK (hybrid + remote) in London

About Cleo
At Cleo, we are not just building another fintech app. We are embarking on a mission to fundamentally change humanity's relationship with money. Imagine a world where everyone, regardless of background or income, has access to a hyper-intelligent financial advisor in their pocket. That is the future we are creating. Cleo is a rare success story: a profitable, fast‐growing unicorn with over $200 million in ARR and growing over 2x year-over-year. This isn't just a job; it's a chance to join a team of brilliant, driven individuals who are passionate about making a real difference.

What You'll Be Doing
We are looking for a brilliant Frontend React/React Native Engineer with an eye for UI/UX design to join us on our mission to fight for the world's financial health. You will be joining a team of adaptable, creative and product-focused engineers who ship working software. We understand our customers, we understand their pain, and we are passionate about helping them.

• Joining a cross‐functional product squad with a mix of frontend engineers, designers, UX writers, backend engineers, data analysts and others to develop features that improve our users' financial health.
• Working on our React Native application, building out amazing experiences for our users which bring financial health to life in the unique Cleo tone of voice.
• Writing automated tests alongside your code to give us the confidence to ship it.
• Using AB‐Tests, feature flags and other tools that let us iterate quickly.
• Using data to dig into user journeys, detecting problems and helping to optimise the Cleo experience.
• Being part of the rota for our weekly app releases to the Apple and Google app stores.
• Getting involved in cross‐cutting concerns that lift our entire engineering effort with the rest of the frontend chapter.
• Taking part in shaping all the work your squad does, not just the technical parts.

Here Are Some Examples, Big And Small, Of The Kinds Of Product Feature Work Our Engineers Have Taken Part In Over The Last Year:

• Building a secured credit card from scratch to help our users improve their credit scores without changing their habits.
• Launching our new budget rewind feature to help users understand their pay‐cycle and provide them with better analysis of how they got on with their budget.
• Adding discount plans and tiering options to our subscriptions so we can experiment with the best pricing for different types of users.

Whichever squad and part of the business you land in, you will be shipping changes multiple times a week to our hundreds of thousands of active users and seeing your work having a material impact on the financial health of those most in need.

About You
You are passionate about making a positive difference in society by improving the financial health of our users. You align with our company values and engineering principles, which drive our ways of working and software delivery.

For this frontend focused role, we also have some specific asks:

• As this is an SE3/SE4 position, we are looking for someone with strong industry experience of using React Native / React with TypeScript for a minimum of 5+ years.
• If it is less than that, maybe you want to look at our Product Engineer role.
• As your work will primarily involve working on features for our mobile apps, we would either like to see some proven experience in this area or a genuine passion for moving into the mobile app space.

Our Tech Stack
Cleo is built as a Ruby on Rails monolith with a single React Native app frontend, utilising TypeScript. We also leverage Python for machine learning services and PostgreSQL for our database, all hosted on AWS. Our CI/CD pipeline is fully automated, with production deployments happening on every merge via Heroku. Our backend engineers deploy multiple times a week, and we release our frontend app to Google and Apple for review at least once a week.

While we take a pragmatic approach, we place a strong emphasis on quality. Our code is peer‐reviewed, and we maintain automated testing using Minitest and CircleCI. We are also actively working towards a more modular architecture, focusing on separating concerns to achieve all the benefits of microservices within a monolith, while progressively refactoring our code as we build new features. Everyone in the engineering team contributes to driving our technical strategy, voices & ideas from all levels are valued: we are all owners at Cleo.

What do you get for all your hard work?
A competitive compensation package (base + equity) with bi‐annual reviews, aligned to our quarterly OKR planning cycles. You can view our public progression framework and salary bandings here: https://cleo-ai.progressionapp.com/

• Work at one of the fastest‐growing tech startups, backed by top VC firms, Balderton & EQT Ventures.
• A clear progression plan. We want you to keep growing. That means trying new things, leading others, challenging the status quo and owning your impact. Always with our complete support.
• Flexibility. We can't fight for the world's financial health if we're not healthy ourselves. We work with everyone to make sure they have the balance they need to do their best work.
• Work where you work best. We are a globally distributed team. Our Poland team works fully remotely, but we host virtual socials and an annual company offsite somewhere in Europe with all expenses paid.

Other benefits:
Company‐wide performance reviews every 6 months, generous pay increases for high‐performing team members, equity top‐ups for team members getting promoted, 25 days annual leave a year + public holidays (+ an additional day for every year you spend at Cleo, up to 30 days), private medical insurance via Vitality, dental cover, and life assurance, 1 month paid sabbatical after 4 years at Cleo, regular socials and activities, online and in‐person.

This Is a 4‐stage Interview Process:
Interview with the Recruiter (30 mins), Interview with the Engineers (45 mins), Technical interview - Live Coding in React (90 mins), Interview with the Engineering Managers (45 mins).

UK App access
The Cleo app is no longer downloadable in the UK. If you are an existing user, you will still have access to the app. But some features won't be available. Why? 99% of our users are based in the US – where financial health is often overlooked. We have decided to shift our focus to where we can provide the most value and make the greatest impact for users who need it most. Then we will be able to apply what we learn to better support our UK users in the future.

We strongly encourage applications from people of colour, the LGBTQ+ community, people with disabilities, neurodivergent people, parents, carers, and people from lower socio-economic backgrounds. If there is anything we can do to accommodate your specific situation, please let us know.