Manager, Sales 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 looking for an enthusiastic and talented Sales Engineer to join our fast-growing team in London to support our clients with integrating our revolutionary online payments platform.

This is a mid-level position, and the successful candidate will be responsible for providing technical leadership and guidance to our clients, predominantly in the UK, throughout the entire sales lifecycle. As a Sales Engineer, you are responsible for technical ownership of client relationships from initial contact in the sales cycle throughout the solutioning, integration, and go-live stages of the customer journey. The ability to solve business and technical requirements through the application of products and solutions is core to the success of the position. Along the way, you'll collaborate closely with various in-house talents across Technology and Business to position our capabilities, products, services and solutions effectively with prospects.

The ideal candidate will need to be an independent, high-achieving individual, able to stand out in an entrepreneurial environment and outperform performance targets through personal drive.

What You Will Be Doing

• Support the commercial team to position 's products, solutions, and services, and ultimately, help to win deals. You will be a key partner to Account Executives on all matters related to product, payments, regulation, and tech.
• Understand merchant requirements and technical needs, map this to our APIs and products, create solution designs and internal documentation.
• Run demos, build "show-me" payment flows, create POCs, customise and create presentations.
• Provide thought leadership on all aspects of Payment Performance - Acceptance Rate, Fraud Prevention, Tokenisation, Payment Methods, and others.
• Lead all technical interactions with merchants, from chats and calls to meetings and workshops until the deal is won.
• Support BID management team with RFP and RFI responses.
• Enable internal functions, commercial and tech, with market and merchant feedback on product capabilities. Champion product change and improvement.
• Being constantly up to date with industry standards, solutions, and tech
• Being an expert of 's platform and product.

About You

• 3-5 years experience as a Sales Engineer / Solutions Architect / Pre-Sales Consultant / Implementation Engineer or TAM.
• Experience working in a technical client-facing role.
• Drives results with a strong commercial focus and proactive approach.
• Clear written and verbal English. Able to communicate to both technical (developers, product) and business (payments, finance, c-level) stakeholders.
• Able to thrive in a fast-paced environment.
• Ability to translate technical jargon into business speak.
• Problem‑solver. Able to reproduce, isolate and explain issues using logs, API responses, and tests.
• Highly organised and able to prioritise shifting workloads and responsibilities effectively.
• Familiar with API based integration methods, associated best practices, and related tools/frameworks (REST/JSON APIs, Postman).
• Experience with at least one common front-end (pure JavaScript, React, Angular, etc) and back-end (Java, .NET, Python, Node, etc) technology.
• Previous exposure to RFI/RFP
• Understanding of end-to-end payment flow.
• Payments industry exposure with an understanding of the related rules and regulations and payments schemes.
• Experience with 3DS, Network Tokenisation, Apple/Google Pay, Open Banking, or fraud‑risk engines.

Nice To Have

• Familiarity with PSD2/PSD3/PSR, FCA, ISO-8583.
• Additional language is a plus.
• Former engineering, developer, or product manager background.
• Held prior roles in E-commerce industry.

*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