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Testing & quality assurance services

We support testing and quality assurance processes in all technological areas, from web, mobile and API, through SAP and ServiceNow, to embedded systems and security

Maciej, Senior Test & Analysis Engineer
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Our key strengths

1 500+ experts

QA & test engineers

95% ISTQB

Certified Engineers

200+ clients

from all over the world

Biggest software testing services provider

in Poland

Performance Engineering

best testing practices and cutting edge technologies

Impressive references ​

from retail, banking, healthcare, automotive and many other industries​

Partnerships

with the market leaders

Meet our experts

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I’m both a technical leader working on automation tests and a speaker at testing events, conferences, and meetups. By blogging about test automation and testing, I can share knowledge with people interested in this field. Reading, listening to rap music, traveling, and discovering new cuisines also make me happy. Read more Read less
Michał Ślęzak | Test Architect
C# Selenium SpecFlow
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I am a developer with a tester mindset. I got experience at every software development stage at typical agile projects. Delivering properly working and tested code is what I am most proud of. Privately a minor geek, a casual PC gamer, and a movie lover. Read more Read less
Krzysztof Bednarski | Solution Architect
Java Selenium Apache Groovy
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At Sii, I am responsible for providing high-quality IT solutions. My knowledge and technical experience are helpful in providing optimal solutions for our clients. I also take care of building effective and committed teams. After work, I am husband, father of Adaś and Wojtek, and also an admirer of the woodwork. Read more Read less
Paweł Juszczak | Delivery Manager
Java Selenium
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At Sii, I prepare offers as well as automation and performance tests plans. I'm also responsible for implementation, performance, and reporting. I am an innovator who will find an area for optimization even in the best-arranged processes and tools. To me, cycling is definitely the most fun activity. It doesn’t matter if it’s ROAD, Gravel, MTB, XC, DH, Enduro, or even Trekking – I love them all. Read more Read less
Artur Dudek | Performance Test Architect
Dynatrace Selenium Micro Focus
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In my daily work, I combine my testing experience with a passion for programming. I've worked in the banking industry, telecommunications companies, the gambling industry, and more recently, in the copyright fees area. I help Sii clients in choosing optimal tools for test automation. After hours, I ride my bike, repair my car, and raise my children. Read more Read less
Tomasz Kuran | Test Automation Architect
Java Apache Groovy C#
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I am an automation tester with a passion for programming in the Java ecosystem. I have gained my professional experience mainly in the financial and big pharma industries. In addition to designing and implementing test scenarios, I am interested in testing the performance of business applications and implementing proposals in the test architecture. In my spare time, I read literature on psychology, investing and travel around the country by motorcycle. Read more Read less
Dariusz Hryciuk Test Development Engineer
Java C# Apache JMeter
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As a Test Development Engineer at Sii, I automate tests with Tricentis Tosca and implement this tool for our clients. I believe that people are the greatest value in each project - that's why I became a mentor and support Sii workers as part of the internal "Tosca School", and after work I co-organize meetings of the ŁuczniczQA test meetup. In my spare time I plan holiday hiking routes. Read more Read less
Daria Ciurko Test Development Engineer
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I’m a professional bug hunter currently working with Sii. My main area of expertise is quality assurance in fintech. I’m valued mainly for my hyperactivity, multitasking and creativity in action. Despite the critical approach to software I’m a tireless optimist Privately my passions are long-distance travel, Polish mountains and horseback riding. Read more Read less
Kamila Polańska Test & Analyst Engineer
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I'm working as a Delivery Manager leading many projects and teams and ensuring that the needs and requirements of our Clients are well understood and the highest quality of testing services are provided. Software testing is me true passion, in which I have practical, hands-on, experience also as a Test Manager in big anc complex IT projects. After work, I enjoy going to theatres, musicals and movies. Also travelling is my great passion. Read more Read less
Nicole Stodolska | Delivery Manager
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I've been a tester for more than 6 years and for the past two I've been fulfilling my role as a test lead at stream, where we test data migration between two systems. In addition to working daily with the world's best team of testers, I am in constant contact with managers, analysts and architects to improve projects. Predict the unexpected, understand the unpredictable, plan the unannounced, and at the same time test the best we can. After hours, I can be found with a sander in hand refinishing old furniture. Read more Read less
Marta Cholewińska | Test & Analyst Engineer

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Sii experts supported one of the world’s largest biotechnology companies by building a solution that replaces a business-critical pharmacovigilance system. By introducing test automation with Tricentis Tosca, Sii was able to reduce the company’s costs and time spent on testing the new solution. See how can you benefit from this solution!
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