Senior Specialist, Implementation Engineering

Company Description

We're – you might not know our name, but companies like eBay, ASOS, Klarna, Uber Eats, and Sony do. That moment when you check out online? We make it happen.

is where the world checks out. Our global network powers billions of transactions every year, making money move without making a fuss. We spent years perfecting a service most people will never notice. Because when digital payments just work, businesses grow, customers stay, and no one stops to think about why.

With 19 offices spanning six continents, we feel at home everywhere – but London is our HQ. Wherever our people work their magic, they're fast-moving, performance-obsessed, and driven by being better every day. Ideal. Because a role here isn't just another job; it's a career-defining opportunity to build the future of fintech.

Job 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.

How you'll make an impact

• Provide technical support to merchants during their implementation of payment processing technology

• Answer all merchants' integration related questions, including but not limited to configuration, debugging, documentation, testing, go-live support, and post-live support

• Manage incidents as related to the integration (investigation, troubleshooting, escalation, resolution, reporting, time tracking and analysis of incidents)

• Collaborate and partner with internal teams such as Merchant Configuration, Sales, Account Managers, and Merchant Care, to resolve issues during customer trials, integrations, or post-implementation support

• Interact with the Product teams to pinpoint improvement ideas

• Advise Manager on issues which impact customer satisfaction and provide recommendations for appropriate actions

• Ability to multitask with multiple projects and integrations of customers

• Maintain/update existing libraries/plugins used in integrations

•  5+  years of development or technical support experience in a Tech/FinTech company

• Have payments experience would be advantageous

• Understanding of API, REST, webhooks and logs is required

• Strong coding skills in at least one of these languages: Java, Javascripts, PHP, Python, Go, C#

• Experience with , React is a plus

• Knowledge in iOS/Android is a plus

• Excellent communication skills, ability to build and maintain strong relationships

• Ability to work in a customer-focused and target-driven environment

• Good in speaking and writing in both English and Chinese

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

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 , follow us on LinkedIn and Instagram