Experience About Posts

Senior QA Engineer | Enterprise, Data & Cybersecurity Platforms

(Data / Backend / API / Performance / Automation)

I am a Senior QA Engineer with 13+ years of experience focused on data-driven, backend-heavy, and enterprise cybersecurity systems. I help teams identify quality risks early, ensure data consistency across pipelines, and deliver secure and stable releases in complex enterprise environments.

I have extensive experience in software testing, performance engineering, and data-driven quality assurance. Over the course of my career, I have contributed to 19 medium- to large-scale international projects for clients in the USA, Canada, Europe, and Australia. These projects included web, cloud, mobile, desktop, embedded, and cross-platform solutions, such as enterprise BI, ERP, CRM, and DMS systems; fintech and tax platforms; e-commerce and logistics solutions; hosting and cloud services; airline mobile applications; gaming platforms; retail point-of-sale (POS) systems; healthcare and medical data platforms; cybersecurity products; as well as internal corporate systems integrated with complex third-party services and standalone products.

Performance QA Expertise

I am a strong Performance Test Engineer with extensive hands-on experience in designing and executing performance and load testing across multiple system layers, including HTTP/HTTPS, REST and SOAP APIs, JDBC/database interactions, microservice-to-microservice communication, and backend integration layers.

My work focuses on validating system throughput, response times, concurrency limits, resource utilization, and identifying bottlenecks to ensure the reliability, scalability, and stability of complex enterprise, data-driven, cybersecurity, and integration-heavy solutions under real-world and peak-load conditions.

  • Recognized by EPAM for excellence in performance and load testing of DMS integration solutions;
  • Hands-on experience with JMeter, LoadRunner, Postman, and other load-testing tools;

Technologies & Tools:

Automation & QA Expertise

  • Moderate to advanced automation skills with the ability to implement, extend, and maintain automation scripts;
  • Developed automated tests for UI, API, and integration scenarios, improving test coverage and release reliability;
  • Maintained automation frameworks and developed Selenium WebDriver tests using Java/JUnit and Protractor JavaScript;
  • Graduated from SoftServe IT Academy with a specialization in Automation of Testing Processes and Quality Assurance of Modern Software Systems;

Automation & DevOps Tools:

Latest Role

Labyrinth Security Solutions

Lead QA Engineer | January 2026 – Present

The Labyrinth Deception Platform is an advanced cybersecurity solution that uses realistic decoy environments to detect, analyze, and stop attackers before they cause business damage. It protects enterprises, government organizations, critical infrastructure, and MSSPs across distributed and multi-tenant environments.

As Lead QA Engineer and QA Owner, I drive overall product quality, define the testing strategy, strengthen QA processes, manage quality risks, and coordinate release readiness across development and product teams.

During this period, LABYRINTH achieved major international recognition:

  • Best Cybersecurity Innovation Europe — Cybersec Europe 2026
  • Rising Star of the Year — InfoSec SEE 2026

These awards strengthened LABYRINTH’s position among Europe’s most innovative cybersecurity companies.

Key Achievements:

  • Became the QA Owner responsible for the overall quality of the Labyrinth Deception Platform
  • Built and established the product’s complete QA approach, processes, strategy, and documentation
  • Took full ownership of functional, API, integration, performance, automation, regression, and release testing
  • Became the key quality expert connecting product, development, and business decisions throughout the entire release lifecycle
  • Ensured the successful delivery of several major releases by managing quality risks from development through production

Technologies & Tools:

Previous Key Role

QA Coach @ Deloitte — Intela

Led QA activities for BI and data pipelines across 15 Scrum teams.

Responsibilities:

  • Tested Normal, Resync, Reconciliation, and Orphaned microservice flows;
  • Tested database tables, transformations, and migrations;
  • Validated ETL and Data Lake pipelines;
  • Tested Power BI dashboards and reports;
  • Performed performance, load, integration, and automation testing;
  • Coordinated testing activities and release readiness;

Technologies & Tools:

Top Projects

Healthcare QA & Practical Experience

I have hands-on experience in developing and testing healthcare software, including:

  • Embedded medical device software, including insulin pump management systems;
  • Patient data platforms handling ultrasound images, video examinations, documents, and other medical file types;

This experience provided me with strong knowledge of healthcare workflows, regulatory requirements, patient data protection, and safety standards for medical software.

I also have practical experience in developing localization for embedded medical devices and building translation tables for medical software where correct application behavior directly impacts human lives.

Mednet SQA Testing Certification:
Completed the Mednet SQA Testing course and certification focused on quality assurance practices for healthcare software.

Expertise / Core Skills

  • Testing and QA: SDLC, SQA methodologies, functional and technical specification analysis, regression, exploratory, and integration testing;
  • Cybersecurity QA: Cyber Deception, TI/CTI, MSSP, multi-tenancy, SSO/LDAP, role-based access, threat monitoring, and OWASP security practices;
  • Performance: Performance, load, stress, scalability, stability, and endurance testing;
  • Automation: UI, API, integration, and regression test automation;
  • Data and BI: SQL Server, Oracle DB, PostgreSQL, MongoDB, Data Lake, Databricks, ETL, and Power BI;
  • Programming: Java, JavaScript, basic OOP, and scripting;
  • Web and API: HTML, XML, JSON, REST, SOAP, JDBC, and Web UI;
  • Automation Tools: Selenium, Protractor, JMeter, Postman, SoapUI, ReadyAPI, and LoadRunner;
  • Cloud and DevOps: Azure, Docker, Jenkins, CI/CD, GitHub, and Azure DevOps;
  • Healthcare QA: Mednet-certified with experience in medical monitoring, patient data, localization, and compliance systems;

Contact Me