Leading Software Testing Providers

Sii Poland
al. Niepodległości 69
02-626 Warsaw


+48 22 486 37 37




At Sii, we have over 14 years of experience in delivering testing projects for clients around the world. Our focus is on Pharma & Healthcare, Banking & Finance, Retail & Logistics, Telco & Media, and Hi-Tech industries.

With us, costs are optimized, testing process accelerated, and time to market reduced. Our experts are ready to support your team in testing activities of your choice.

Our main areas of expertise:

Test Automation – Test automation for all types of applications, from web and mobile to desktop and API.

What we offer:

  • Unit tests in Java, C#, Phyton
  • Kafka and RabbitMQ message broker testing
  • API tests using Postman, SoapUI, Rest Assured, and Tricentis Tosca
  • UI tests using Selenium WebDriver, Protractor, Tricentis Tosca, and UFT
  • Parallel testing for reducing the time of test execution using Zalenium or Selenoid with GGR
  • Results reporting with qTest or ReportPortal
  • Test automation for different technologies, including SAP, Salesforce.com, and ServiceNow

Continuous Testing Shifting testing left by executing automated tests seamlessly integrated into the software delivery pipeline. We optimize the testing scope set based on business risk assessment.

What we offer:

  • Time to market reduction
  • E2E test automation
  • CI/CD integration
  • Test coverage improvement
  • Risk coverage optimization
  • Service vitalization
  • Test data management

Performance Testing  We ensure software usability by focusing on systems behavior under normal conditions and extreme peaks. We prepare and execute testing types based on the highest-quality tools used to generate load, create tests, and analyze results.

What we offer:

  • Load testing
  • Stress testing
  • Endurance testing
  • Volume testing

Embedded Testing – We deliver embedded testing solutions and offer embedded software testing at various levels for industries like automotive, medical, rail, and others requiring compliance with the highest performance and security standards.

What we offer:

  • Unit tests
  • Integration tests
  • System tests
  • User acceptance tests
  • Required documentation preparation
  • Compliance with sector standards (e.g. automotive & rail)

Web Security Testing – Full security review of the client’s web applications.

What we offer:

  • Application security audit
  • OWASP Code Review
  • Vulnerability Assessment
  • Penetration tests

Managed Test Service Partner – Taking complete ownership of all testing processes and activities so that you can concentrate on your main business goals, we take care of both quality assurance and testing.

What we offer:

  • Service focused on business goals and software quality
  • Cost optimization
  • Specialist expertise
  • Reliability and flexibility
  • Reduced time to market

Tricentis Products Implementation – We are the largest and most experienced Tricentis Partner in Poland.

What we offer:

  • Tricentis Tosca, LiveCompare, qTest, and Flood implementation
  • Test Automation services
  • CI/CD integration
  • Test scope optimization
  • Tosca customizations
  • PoC and ROI analysis
  • Transformation strategy

Sii partners with testing industry market leaders to provide high-quality, cost-efficient, innovation-driven solutions that help you to speed up testing and general software delivery process, giving you a competitive advantage over your rivals. Among our partners are Tricentis, Neotys, Microsoft, Atlassian, SAP, and others.

Sii provides services in a nearshore and offshore outsourcing model. Our experts deliver services to a growing number of clients from more than 20 countries in Asia, North America, and Western Europe. Regardless of their location and time zone, we offer professional assistance 24 hours a day, at the same time covering administrative and office costs.

If you are looking for an experienced and trusted Test Service partner, we recommend booking a free consultation with Sii expert to understand how to get the best software quality at an attractive price with our support.

Do not waste money on in-house testing