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Cleo

Senior Product Engineer - React Native/React

On site

London, United kingdom

Full Time

07-04-2025

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Job Specifications

About Cleo

At Cleo, we're not just building another fintech app. We're 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's the future we're 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. We have an exceptionally high bar for talent, seeking individuals who are not only at the top of their field but also embody our culture of collaboration and positive impact.

If you’re driven by complex challenges that push your expertise, the chance to shape something truly transformative, and the potential to share in Cleo’s success as we scale, while growing alongside a company that’s scaling fast, this might be your perfect fit.

Follow us on LinkedIn to keep up to date with new product features and insights from the team.

The role

We’re looking for a brilliant Frontend 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’ll 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.

View how we run our Engineering Interview process.

What you’ll be doing

Want to hear it directly from the team? Check out Nacho's blog post.

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
Collaborating with other leaders in your squad and pillar to provide technical insight into upcoming feature work, and leading the delivery of work by helping pull everyone together to get it shipped
Mentoring your colleagues to help them become the best engineers they can be. You intentionally take time to share your skills and experiences with them and actively support their growth
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. Delivery is a team sport, and we encourage everyone at Cleo to share their ideas, so you can expect to be involved in product ideation sessions, user research calls, design reviews, retrospectives, ways of working sessions, product demos, OKR reviews.

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.

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're 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.

About You

Firstly, and most importantly, all of the above sounds exciting to you and you want to make a positive difference in society by improving the financial health of our users worldwide.

You’ve also read our company values and engineering principles which drive our ways of working and help us deliver working software to our users, learn what works and iterate quickly to improve it. You share and embrace these opinions and are passionate about using them to deliver value.

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

As this is an SE4 position we’re looking for someone who has strong industry experience of using React Native / React with TypeScript for a minimum of 4 years. If it’s not quite that much then maybe you want to look at our standard Frontend role.
As your work will primarily involve working on features for our mobile apps, we’d either like to see some proven experience in this area or a genuine passion for moving into the mobile app space.

Why should I apply?

There’s a clear engineering career growth framework. Whether you want to develop your career as a sole contributor or head down the engineering management track, you can grow with us!
You’ll be joining an open and collaborative team where you’ll be heard and get to make a difference
You’ll be joining a team of respected frontend engineers
Work where you work best … We’re a globally distributed team. If you live in London, we’d love you to spend one day a week in our beautiful office. If you’re outside of London, we’ll encourage you to spend a couple of days with us a few times per year. And we’ll cover your travel costs, naturally.
Work when you work best … we have flexible hours to enable you to work at your best

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.progressiona...

About the Company

Cleo. Where AI meets money. Cleo launched in 2016 by people who have been burned by banks. Fed up with the broken system, we decided it was time to make a change. Since then, the cost of living has skyrocketed, the rich have continued getting richer, and our vision has only become clearer. Our mission? To change the world's relationship with money. Cleo is a platform for the 99% – an AI assistant defining a new category, one that goes beyond saving and budgets to actually changing how we feel about our finances. Usi... Know more