Test Automation Engineer

We’re looking for a new Test Automation Engineer to join our crew. You’ll be scripting smart test journeys, fine‑tuning our platform and infrastructure, and building authentication robots for our clients. Together with your team, you’ll also take charge of monitoring and incident detection.

It’s a key position, right at the heart of our operations. Thanks to you and your team, WTSS can guarantee that our client banks are well taken care of when it comes to encryption, fraud prevention, system vulnerabilities, authentication flows, regulatory compliance, data privacy and more.

Banks process millions of transactions every single day. In our modern world, they’re absolutely essential. That’s why identifying, assessing, and solving incidents as quickly as possible is critical for them. And that’s where WTSS comes in.

WTSS is an independent Fin Tech partner to banks around the globe. We act as a friendly, patient, and risk‑free pilot customer, so banks don’t have to test on their real clients. We design structured test journeys (manual and automated) across all possible environments to catch and fix issues before they turn into major risks.

We’re a small, highly technical team of 15, supporting some of the world’s biggest banks. All from our HQ in Rotterdam. We call ourselves ethical techies: curious tech savys who love breaking things, just so we can build them back up, but than better. Incidents don’t impress us. Because of our passion and knowledge about the things we do, we create great value when things don't go as expected.

• Setting up stable and reliable test environments (hardware, software, APIs)
• Writing and running automated test scripts that simulate real‑world customer journeys
• Designing and rolling out robotic processes to offer full end‑to‑end test coverage

As a Test Automation Engineer, you’ll dive into every payment flow banks have to offer. Expect lots of variety, high‑speed environments, and plenty of modern tech to explore.

You’lll be joining a team of people who simply love tech. We’re the ones our families call when the printer won’t connect or the WiFi is acting strange. Some of us install a fresh OS on our personal machines just for fun. On a Saturday. Voluntarily.

If you’ve got that same curiosity for new tools, tech, and tinkering, we’d love to hear from you!

• Experience with test automation frameworks
• Solid scripting skills (JavaScript, C#, or similar)
• You learn fast and don’t mind a lack of documentation. You like exploring!
• Experience in banking or payments? Big plus!

• Salary based on your experience and skills
• Start with a 1-year contract, working towards a permanent contract
• A diverse role in a growing, tech‑minded, no‑nonsense team
• Hybrid setup: work from our Rotterdam HQ and from home
• We offer a good pension plan, travel allowance, homework allowance