Senior Mobile Engineer

checkout.com
London

Company Description

We’re Checkout.com . You might not know our name, but companies like eBay, Spotify, Klarna, Uber, and Sony do, because we’re behind many of the digital experiences you use every day.


We are where the world checks out, enabling over 10 billion transactions yearly for more than one billion global shoppers.

Whether you want to book a holiday, order food, renew a subscription, or check out online, there’s a good chance our tech powers the payments behind the scenes. Our platform helps the most ambitious businesses deliver effortless digital experiences, at scale.

If you want to do career-defining work, you’ve come to the right place. We move fast, think globally, and believe great teams are built by hiring exceptional people with conviction, curiosity, and the desire to make an impact.

With 20 offices across six continents and London as our HQ, we’re shaping the future of fintech – and we’re just getting started.

About the Role

Checkout.com is on a mission to transform the shopping experience for millions of consumers. As a senior individual contributor in mobile, you’ll help design and build the products we put in the hands of our end users.

Working hand-in-hand with our engineering team and product leaders, you’ll be crafting high-performance, user-friendly experiences, which operate at scale. Your role will extend beyond writing code - you’ll define architecture, lead technical discovery, and help us build the foundations that underpin our consumer offering.

What you’ll be doing

  • Architecting and building the mobile experiences that are used directly by millions of consumers around the world.

  • Owning feature development end-to-end, from discovery through to development, and monitoring through to maintenance.

  • Working closely with backend teams to ensure the underlying systems we build are aligned to support our mobile product evolution.

  • Championing best practices across the technical domain (testing, monitoring, release strategy, etc) to strengthen our foundations as we build our products.

  • Mentoring peers, reviewing code, and contributing to the long-term technical vision for mobile development at Checkout.com .

Should have

  • Solid background in mobile technologies (e.g. working with at least one of: native iOS, native Android, React Native)

  • Proven track record building scalable and highly performant consumer experiences across the mobile domain

  • Experience building and maintaining mobile apps or SDKs used by a large, active, user base.

  • Passionate about developer experience - clear APIs, great docs, and reliability at scale.

  • Excellent communication skills and experience collaborating with product, design, and backend peers.

Nice to have

  • Previous experience in payments, fintech, or other security-sensitive domains.

  • Exposure to PCI compliance, tokenization, or secure data handling.

Additional Information

Bring all of you to work

We create the conditions for high performers to thrive, through real ownership, fewer blockers, and work that makes a difference from day one.

Here, you’ll move fast, take on meaningful challenges, and be recognized for the impact you deliver. It’s a place where ambition gets met with opportunity, and where your growth is in your hands.

We work as one team, and we back each other to succeed. So whatever your background or identity, if you’re ready to grow and make a difference, you’ll be right at home here.

It’s important we set you up for success and make our process as accessible as possible. So let us know in your application, or tell your recruiter directly, if you need anything to make your experience or working environment more comfortable.

Life at Checkout.com

We understand that work is just one part of your life. Our hybrid working model offers flexibility, with three days per week in the office to support collaboration and connection.

Curious about what it’s like to be part of our team? Visit our Careers Page to learn more about our culture, open roles, and what drives us.

For a closer look at daily life at Checkout.com , follow us on LinkedIn and Instagram

Posted 2026-07-18

Recommended Jobs

Days Maintenance Engineer

East London

Maintenance Engineer East London (E16) Monday-Friday Days (7am-3pm) £55,000 + Overtime Benefits:- ~5% Bonus Scheme ~ Group Private Pension (9% Employer Contribution) + X4…

View Details
Posted 2026-06-18

Head of EMEA Sales

mosaic
London

About Mosaic Mosaic is the AI-driven deal modeling platform for private markets, used by leading investors and advisors including Warburg Pincus, CVC, New Mountain, and Evercore . Mosaic automat…

View Details
Posted 2026-07-12

Head of DT - Inner London Pay - Lambeth

Marchant Recruitment
London

Head of Design & Technology - Lambeth, South London &##128736;️ Lead Innovation: Head of Design & Technology Role in Lambeth! We are seeking an ambitious and experienced Head of Design & Techn…

View Details
Posted 2025-10-01

SEN Teaching Assistant | Dagenham

Marchant Recruitment
Dagenham, Greater London

A friendly primary school in Dagenham is recruiting a SEN Teaching Assistant for January 2026. This SEN Teaching Assistant role offers the chance to make a meaningful difference within a supportive e…

View Details
Posted 2026-01-10

Year 3 Teacher — Lambeth

Marchant Recruitment
London

Do you want to join a dynamic Lambeth primary rated Outstanding and teach a curious Year 3 class from January 2026? A high-aspiration Lambeth school is looking for an inspirational Year 3 Teacher to …

View Details
Posted 2025-10-28

Senior Finance Manager (FP&A)

NextEnergy Group
London

THE ROLE WiseEnergy is a trusted and established solar asset manager, offering all the services clients require to manage and optimise large-scale solar plants, from development and construction t…

View Details
Posted 2026-06-27

Chemistry Specialist - Outstanding School - Haringey

Marchant Recruitment
London

An Outstanding Ofsted-rated Mixed Secondary School in Haringey, North London, recognised for its exceptional science results and commitment to academic rigour, requires a passionate Teacher of Scienc…

View Details
Posted 2025-10-11

Year 3 Teacher - Isleworth

Marchant Recruitment
Hounslow, Greater London

We are seeking a motivated, enthusiastic, and experienced Year 3 Teacher to join a supportive and inclusive primary school in Isleworth, starting as soon as possible. This is an excellent opportunity…

View Details
Posted 2026-02-04

School Business Manager - Good Primary School in East London

Marchant Recruitment
Barking, Greater London

The School Business Manager opportunity you’ve been waiting for… A welcoming and well-regarded primary school in East London is seeking a proactive and organised School Business Manager to join its…

View Details
Posted 2026-03-07

Senior Engineer - Platform

trainline
London

About us We are champions of rail, inspired to build a greener, more sustainable future of travel. Trainline enables millions of travellers to find and book the best value tickets across carrier…

View Details
Posted 2026-07-18