Денис

Den Andrus
Manual QA Engineer | Web & Mobile | SQL | Client-Server | AI-assisted QA
[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | Kharkiv, Ukraine

PROFILE
Senior QA Engineer with 10+ years of experience in manual and automated testing of web and enterprise applications.
Strong in business-logic analysis, E2E and regression testing, test documentation, SQL/database validation, client-server
architecture, Linux, logs and CI/CD. Hands-on automation and scripting with Selenium, Python and PHP. Practical AI-assisted
QA experience with ChatGPT, Claude and self-hosted LLMs, including deployment and integration of Ollama-based analysis
into internal QA workflows.

CORE QA SKILLS
• Manual / E2E / Regression Testing • Test Cases, Checklists, Test Plans
• Requirements & Business Logic Analysis • Web & Mobile-Web Testing
• Client-Server Architecture • SQL / MariaDB / MySQL
• Selenium WebDriver / Python • PHP / Scripting
• Linux / Log Analysis • Jenkins / CI/CD
• Jira / Trello • HTML / CSS / JS / JSON / XML
• AI-assisted QA / LLM Evaluation • ChatGPT / Claude / Ollama

EXPERIENCE
QA Engineer Nov 2021 - Present
NAKIVO
• Design, maintain and execute manual and automated test suites for enterprise software products.
• Analyze application behavior, investigate complex issues and validate expected results across large-scale web platforms.
• Develop internal QA tools and automation solutions using Python and PHP.
• Work with SQL databases, Linux environments, logs, cron jobs and CI/CD-related processes.
• Use Claude and ChatGPT in QA workflows for analysis, investigation and AI-assisted quality tasks.
• Independently deployed and configured a self-hosted LLM with Ollama on a Linux server.
• Integrated the Ollama-based LLM into the QA department's internal dashboard to analyze automated test results and
generate concise AI summaries.
• Build reporting dashboards, monitoring solutions and automated validation workflows.
QA Engineer (Freelance) Oct 2020 - Nov 2021
• Performed comprehensive E2E manual testing of complex web applications and e-commerce websites, covering core user
flows, payment gateways and business logic.
• Validated UI/UX consistency across Chrome, Safari, Firefox and Edge and responsive layouts on iOS/Android devices.
• Designed and executed regression suites after code changes to reduce production defects and protect release stability.
• Created QA documentation from scratch: test plans, detailed test cases and checklists.
• Investigated, isolated and reported edge-case defects in Jira/Trello with clear reproduction steps, logs and screenshots.
• Worked directly with international clients and product owners to clarify ambiguous requirements, report release status
and provide UX/UI feedback.
QA Engineer / Project Manager Jul 2010 - Oct 2020
META
• Analyzed requirements, clarified technical specifications and created acceptance criteria.
• Established full-cycle QA strategy covering functional, system and user acceptance testing (UAT) for web and software
applications.
• Led release validation and defect triage, prioritization and deployment-stability checks.
• Coordinated clients, developers and stakeholders and managed project backlogs and milestones.

EDUCATION
Computer and Information Sciences - Engineer degree
National Technical University “Kharkiv Polytechnic Institute”

SELECTED ACHIEVEMENTS
• Developed automated validation solutions covering thousands of multilingual pages and large-scale localization projects.
• Built internal QA dashboards aggregating test results, monitoring information and failure analytics from multiple sources.
• Deployed a self-hosted Ollama LLM and integrated AI-generated summaries of automated test results into an internal QA
dashboard.
• Improved defect detection and review efficiency through automation, reporting, AI-assisted analysis and process
optimization.

LANGUAGES
Ukrainian - native | English - B2 (Upper-Intermediate; working toward C1)