Performance Engineer

Apply now

Performance Engineer

We pay you to speed it up

Full-time · Enschede

At Sqills we take pride in how we test our software, but we also recognise we can always improve. If you are not only passionate about ensuring that software performs as it should under different types of conditions, but also like the additional challenge of bringing the way we test software to a higher level, Sqills might be the challenge you are looking for.

What exactly can you expect?

You will play an important role in making sure the overall vision Sqills has for testing our software is realised. You make sure that we test what matters, not only in terms of our customers, but also in terms of integration. In this sense you are more of a coordinator than a performance tester. We are looking for someone with experience in automated performance and likes helping others understand the intricacies of it.

You will be an important point of contact when it comes to performance within Sqills. Not just internally for our own development teams, but also for our implementation teams. It is important you have the ability to communicate clearly, both in writing and verbally.

You will join our Release, Integration & Performance team (commonly known as RIP) and become an important factor there for both trainees and the more experienced testers. Because you are involved in teaching others and the future of testing, you also find it interesting to learn more about the latest developments in terms of testing.

You decide

This role presents you with a great deal of freedom. This might be challenging for some, but we believe it is the great fit for the right person. You have the option to continue along the current way we do things with some minor improvements or tweaks, or there is the opportunity to radically change a number of different aspects of how we test at Sqills. We rely on your experience to move forward.

As much as we will rely on your experience and knowledge on a highover level, you are still involved in the day-to-day testing process as well. This means you will run your own tasks, complete test analysis, and discuss ongoing situations with implementation groups.

What will you do (in short)

  • You work in a team dedicated to the integration and performance of our suite. You do this with our customer centric teams, other software testers, infra experts, and software developers;
  • You guide other testers within the team on performance testing;
  • You advise our DevOps teams on performance testing;
  • You develop performance tests in our primary tool: Gatling (Scala);
  • You execute performance tests at customer implementations projects with specific test scenarios;
  • You continuously investigate whether working methods, processes, and tooling can improve to better the quality of the performance;
  • You document test results and report them to the team and necessary stakeholders.

Who we envision (but feel free to surprise us)

  • Bachelor’s level in both working and technical proficiency (e.g. HBO ICT, Computer Science, Business Intelligence, Technical Management);

  • Experience in performance test automation with Gatling, Jmeter, K6s, or Locust;

  • Affinity with the technical side of software testing;

  • Knowledge of testing techniques and test methods such as ISTQB or TMap is a plus;

  • Knowledge of cloud computing technologies, preferably AWS/Kubernetes is a plus;

  • Knowledge of programming languages (Go, Java, Scala, Ruby, etc.) is a plus;

  • Knowledge of SQL database systems is a plus;

  • Knowledge of monitoring software like New Relic, Grafana, and AWS Insights is a plus;


Our software is complex enough, applying for a job shouldn’t be. That's why we only want some basic information.

Please be aware that only Dutch citizens, EU citizens, or individuals holding a TWV work permit for the Netherlands are eligible to apply for this position.


Having our microservices running on AWS makes us scalable for any customer anywhere in the world.


To test whether the application behaves the way you want it to.


Automate front-end testing.


Test the performance of the application through code.


Runs all of our code in many containers in a microservice landscape