Senior Fullstack Engineer (React/C#) - SMB

  • Full-time
  • CKO Department: Technology

Company Description is one of the most exciting fintechs in the world. Our mission is to enable businesses and their communities to thrive in the digital economy. We’re the strategic payments partner for some of the best known fast-moving brands globally such as Wise, Hut Group, Sony Electronics, Homebase, Henkel, Klarna and many others. Purpose-built with performance and scalability in mind, our flexible cloud-based payments platform helps global enterprises launch new products and create experiences customers love. And it's not just what we build that makes us different. It's how.

We empower passionate problem-solvers to collaborate, innovate and do their best work. That’s why we’re on the Forbes Cloud 100 list and a Great Place to Work accredited company. And we’re just getting started. We’re building diverse and inclusive teams around the world — because that’s how we create even better experiences for our merchants and our partners. And we need your help. Join us to build the digital economy of tomorrow.

Job Description

The role

At, the new SMB Product Group enables small and medium businesses to thrive in the digital economy. We focus on building payment services at scale that will help merchants like start-ups, mom-and-pop shops, and e-commerce sites to have the most delightful payment experience. In essence, we're building a suite of products that allows business owners and entrepreneurs to handle all of their financial operations in just one place.

As a senior Full Stack Developer, you'll be in charge of the maintenance, development, and integration of features for's online payment platform.
You'll be a key player in building the future of how SMB merchants will integrate with us, and you'll have the opportunity to work on brand-new projects for whilst contributing to exciting solutions in the industry. You'll also collaborate closely with various product teams among Software development, integration, and support to improve our merchants' user experience.

We're looking for a teammate who enjoys building great products using the latest technologies, who is not afraid to conduct complex technical discoveries and who firmly believes in creating clean and testable code. You'll be joining a flat hierarchy environment with short decision paths.

What we offer in return is a great international workplace where we encourage innovative and diverse ideas, providing a supportive environment to grow and develop further.

How you’ll make an impact

  • Design, build and ship solutions to complex problems.
  • Collaborate with our multidisciplinary team to deliver key functionalities.
  • Assist in requirements identification and in producing specifications.
  • Partnering with Support, Sales, and Software Development to resolve issues that arise during merchant trials, integrations, or post-implementation support.
  • Influence management on support issues which impact customer satisfaction and provide recommendations for appropriate actions.


What we’re looking for

  • Strong experience with Javascript or Typescript, particularly with React and its ecosystem.
  • Good experience designing and building component based front end applications.
  • Experience in crafting distributed systems.
  • Experience with any of the Object Oriented languages such as Java, .NET, Python, C++ (we use .NET).
  • Experience with Unit and Integration testing.
  • Experience with Continuous Integration and Deployment workflows.
  • Cloud-based application development experience.
  • Ability to work in an Agile and high-paced environment.
  • Fluency in English.

Additional Information

Apply without meeting all requirements statement 

If you don't meet all the requirements but think you might still be right for the role, please apply anyway. We're always keen to speak to people who connect with our mission and values.

We believe in equal opportunities

We work as one team. Wherever you come from. However you identify. And whichever payment method you use. 

Our clients come from all over the world — and so do we. Hiring hard-working people and giving them a community to thrive in is critical to our success.

When you join our team, we’ll empower you to unlock your potential so you can do your best work. We’d love to hear how you think you could make a difference here with us. 

We want to 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. We’ll be happy to support you.

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