Software testing and quality assurance services

Quality is the foundation of our service

With over 25 years in the software industry, our company has assisted numerous clients in utilizing software products in the market with guaranteed quality. Our experts are trained according to global standards and apply best practices in the field, as they bear the responsibility that CNSYS signifies quality. The products we create for our clients are a true reflection of our culture, our amazing teams dedicated to the results, and effective partnerships built with each client.

Our Services

CNSYS provides independent QA services for third-party applications and solutions. From functionality to security, we ensure them. With CNSYS as your QA service provider, you can rest assured and focus on your business.

  • Functionality testing

    CNSYS’s functionality testing is designed to ensure that your application operates seamlessly. Whatever your objective may be, we will understand how to achieve it.

  • Usability testing

    CNSYS considers your users and how they will interact with your application. Our comprehensive analysis identifies potential errors, confusing design elements, and shortcomings in functionality.

  • Security testing

    At CNSYS, our QA team includes security experts. We will conduct a comprehensive assessment to identify system vulnerabilities, provide critical recommendations, and significantly enhance the security of your application.

  • Performance testing

    Can your application handle the load as it scales? CNSYS experts will test the scalability of your application and identify what slows it down. We will provide a comprehensive report to help you make the best decisions for your business.

  • Compatibility testing

    Our QA specialists will test the full compatibility of your application with various browsers, databases, hardware, server infrastructure, displays with different resolutions, and devices.


years of experience


software engineers


working solutions

0x 7 x 365



in Bulgaria

Why trust us for software testing services?

  • Extensive and varied experience over the years

    Our team possesses a diverse range of experience in the field of automated and manual software testing, serving clients from various industries. Whatever the challenge, we are well-equipped to address it effectively.

  • Expertise

    All experts at CNSYS have undergone specialized training for quality testing of software products and systems. By utilizing our QA services, you save time and resources, allowing you to focus on your core business.

  • Application software development

    The developed application software is designed with the primary goal of streamlining and optimizing organizational resources to achieve better results.

Some of our clients


At CNSYS, we have developed and implemented software solutions for a variety of government institutions and corporate clients.


National Health Insurance Fund

Register Agency

Администрация на Министерски съвет

Council of Ministers Administration


Ministry of Interior



Why you should choose CNSYS

6 advantages of our company
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    IT technologies at one place

    CNSYS is a systems integrator that can take responsibility for all aspects of your IT environment, including hardware, networks, software systems, as well as management, security and support.

  • diploma-2983_a6bb0b64-dbc1-431e-ac00-a83597982a0

    Direct partnership with the best

    Since 1998, CNSYS has been a direct partner and authorized service provider of the world’s leading manufacturers of IT technologies and software with the highest levels of specialization and certifications.

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    Many years of proven experience

    For 25 years of successful work on the Bulgarian market, we have gained extensive experience in the supply and adaptation of a wide range of technologies and software applications.

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    Understanding and support towards your challenges

    Our team is a trusted IT consultant and integrator of more than 1000 different organizations in Bulgaria and knows the IT problems of every business, no matter how big it is!
    Therefore, we can provide a quick and competent response to any of your inquiries.

  • customer-service-24-cnsys

    Reliable support and service

    Our support organization is certified according to the ISO 20000-1 standard for service management and is one of the largest in Bulgaria. You can count on 24×7 technical support and advice provided by competent service specialists with proven experience throughout the country.

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    Quality guarantee

    We use a quality management system certified to the ISO 9001 standard, which is subject to annual review and development by an external accredited organization. All activities related to information processing are under the control and management of procedures certified according to the information security standard ISO 27001.

We have the ability to always select the most suitable global technology to address your specific local needs.