Performance Engineer

Join us and spread your wings at the Tricentis & Performance Testing Competence Center. As a performance team, we work with a wide range of tested technologies—from websites and APIs, through ERP systems and video streaming, to IoT—delivering projects across various industries. We’re also proud to incorporate elements of artificial intelligence into our performance testing.

We are currently looking for a Performance Tester to join our team. The ideal candidate will bring strong expertise in performance testing methodologies, coupled with a solid technical foundation and an analytical mindset. If you are passionate about ensuring software efficiency and reliability, we want to hear from you!

Your responsibilities

• Creating Innovative Next-Generation Performance Tests

• Planning and implementing tests

• Building a performance testing environment

• Preparing scripts using chosen tools, such as JMeter, Locust, Gatling, NeoLoad, and LoadRunner

• Collecting results with the use of APM Tools

• Building automated analysis mechanisms

• Conducting the full automation process using CI/CD tools, APM tools, Performance Testing tools, and automated analysis

• Participating in demanding projects for clients from various sectors

• Proposing performance indicators

• Performing root cause analysis of performance problems

Our requirements

• At least 4 years of experience in performance testing

• Solid understanding of the performance testing methodology and tools

• Good knowledge of one or more programming languages: JavaScript, Java, or Python

• Skills in the area of DevOps

• Proficiency with Version Control Systems such as Git or SVN

• Understanding of Service-Oriented Architecture (SOA), API technology, and JSON structure

• Experience with Continuous Integration tools (e.g., Jenkins)

• Sharp, analytical mindset with strong problem-solving abilities

• Very good command of English for effective communication and documentation

What we offer

• Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas

• Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market

• We share the profit with Workers - over PLN 60M has already been allocated for this aim since 2022

• Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more

• Comfortable workplace – class A offices or remote work

• Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application

• PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers

• Investment in your growth – meetups, webinars, training platform and technology blog – you choose

• Fantastic atmosphere created by all Sii Power People

Recruitment stages

1. Send your CV

2. Talk to us about your expectations

3. Learn more about our projects and choose the best

4. Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 500 professionals and implement projects in a variety of industries for clients from many countries around the world.

The Great Place to Work title, won 10 times in a row, proves that at Sii we create a friendly work environment. In a survey, as many as 90% of our employees responded that Sii is a great place to work, and 95% of them think we have a great atmosphere here.