Performance Engineer

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RELEX Solutions create cutting-edge optimisation software to help retailers and consumer brands drive profitable growth. With growth comes opportunities, and we embrace both. Within our platforms, our teams are driving change, working with international colleagues and the latest tech stack to develop solutions that transform into a pioneering end product; it’s tangible and impactful – for our customers and the world.

Our Technology Team

Our Technology team enjoys a challenge. They’re hungry to learn and don’t hesitate to ask what, why, and how. They get to work with various technologies to create high-quality scalable applications (just imagine, thousands of stores, millions of products, and billions of rows of raw data!). Their expertise positively impacts the environment and business processes around the world; alongside international colleagues, they drive change and develop solutions that become our pioneering end product. From functional programming, machine learning, and interesting algorithms, to building big data pipelines, they’re behind it all. They can work in a flexible way, remote or in-office – after all, they contribute to all our achievements, so we reward them with genuine work-life balance and access to every opportunity.    

Join us as a Performance Engineer, and this is some of what you’ll be doing:

  • Develop and execute performance test strategies, plans, and scripts to assess the performance of our systems under various scenarios.
  • Analyse test results and performance metrics to identify bottlenecks, areas for optimization, and opportunities for improvement.
  • Bring visibility to performance metrics and understand their effects on customers.
  • Collaborate with development, QA, and operations teams to implement performance enhancements and ensure the scalability and reliability of our applications.
  • Participating in performance infrastructure maintenance.
  • Contribute to the continuous improvement of our testing and quality assurance processes, tools, and methodologies.

We’re looking for:

  • 3+ years of experience in performance engineering, with a strong focus on performance testing and analysis.
  • Proficiency in scripting and executing performance tests using tools such as JMeter.
  • Experience in Monitoring and Observatory tools and container technologies (such as Docker).
  • Good grasp of web protocols (HTTP, HTTPS), and web services (REST, SOAP).
  • Proficient in at least one programming or scripting language commonly used in performance testing, such as Java, Python, Perl, or .NET.
  • Understanding database management and querying (SQL for relational databases or specific query languages for NoSQL databases)
  • Solid understanding of testing methodologies, quality assurance principles, and software development lifecycle.
  • Good communication and collaboration skills in English, with the ability to work effectively in a cross-functional team environment.

What we consider as an advantage:

  • Experience in using Gitlab, cloud technologies (such as Azure)
  • Front end Developer experience
  • Knowledge of test automation and hands-on experience with automation tools.
  • Creativity in exploratory testing and problem-solving.

RELEX Portugal

RELEXians can be found around the world, but here we’re based out of our brand new central office in Lisbon, where we act as a true extension of the Finnish team. With the metro close by and multiple workspaces – including a lounge and filled fridge – our office is a tech hub and a great place to problem-solve, enjoy work, and then socialise with workmates! Your future teammates make our culture what it is, and we make sure they feel valued and appreciated with lots of activities and gatherings and of course, the genuine flexibility that’s on offer.

Across RELEX, our people are supported and rewarded. In Portugal, we go even further. As well as:

  • Competitive compensation aligned with Nordic countries’ salary levels.
  • The choice to work wherever and however you are most productive.
  • 25 days of Annual Leave.

We also provide life and health insurance for you, your significant other and your children and encourage taking one day a week for self-development or tech exploration. We offer two paid volunteer or charity days a year, contribute to your monthly home internet and data allowance and host monthly fun, friendly and varied socials in the office. But that’s not all.

We’re on a journey with our pioneering technology and exciting growth, which is why we celebrate diversity and are committed to creating an inclusive environment for everyone. We can’t wait to see what challenges you’ll overcome and what problems you’ll solve. Join us and work with the best. Be curious. Be RELEX – Apply today.

Being part of RELEX means being heard, feeling valued and knowing that you can be yourself because you belong. We believe in actions, not words, regarding diverse hiring and employment practices. We take DE&I seriously. We champion and benefit from global diversity. We’re creating and evolving our culture to welcome everyone and value every idea.

Are you the one we’re looking for? Apply today and become a part of RELEX!

Note that we will fill this position as soon as we’ve found the right person, so we recommend that you act quickly.