VAGIF HUSEYNVAND
Summary
Senior QA Engineer with 8+ years of experience across telecom, industrial control, and iGaming domains. Strong background in complex system validation including hardware-integrated web platforms, financial metrics verification , and large-scale mobile applications serving 2M+ users. Experienced in regression strategy design, Python-based automation, and cross-functional collaboration with international stakeholders. Focused on risk-based testing and ensuring data integrity across Dev, Stage, and Production environments.
Overview
10
10
years of professional experience
Work History
Senior Software Test Engineer
Slotegrator
Praga, Czech Republic
12.2024 - Current
- Own end-to-end QA responsibility for BI and reporting systems across multiple gaming modules (casino, sportsbook, affiliate, back office).
- Validate financial metrics and aggregation logic including deposits, withdrawals, GGR, Hold %, and KPI calculations.
- Ensure data consistency across environments (Test → Dev → Prod), preventing reporting discrepancies.
- Analyze API flows and log streams using DevTools, Postman, and Kibana.
- Participate in sprint grooming, backlog refinement, and cross-team planning sessions as QA representative.
- Drive regression coverage for complex reporting modules with high data sensitivity.
- Perform risk-based validation of metric calculations before production release.
- Maintain strict quality control over BI dashboards to ensure financial accuracy.
Senior Software Test Engineer
Limestone Digital
USA
09.2022 - 12.2024
- =Played key role in quality assurance of complex industrial control web platform developed for U.S. partner M&M Systems, integrating hardware panels and SCADA communication.
- During initial months, independently analyzed system architecture, identified weak points in data flow and UI logic, effectively performing cross-functional analysis similar to a Business Analyst role.
- Worked directly with Raspberry Pi environments and Linux-based hardware setups to validate real-time system behavior.
- Validated multi-environment deployments (Dev / Stage / Prod) ensuring configuration consistency and system reliability.
- Designed and executed regression and smoke testing strategies across microservice-based architecture.
- Automated administrative panel flows using Python & Selenium to increase regression coverage.
- Collaborated directly with U.S. stakeholders, participating in sprint planning, grooming, and UAT sessions.
- Prepared structured test documentation and delivered sprint-end validation reports for client approval.
- Analyzed configuration files and logs to identify root causes of production-level issues.
Senior Software Test Engineer
Azertolereya
Baku
07.2021 - 09.2022
- Led QA activities for large-scale digital lottery ecosystem including misli.az web platform, Android & iOS mobile applications, and internal sales Android device software.
- Managed QA team workload distribution, task prioritization, and quality standards enforcement across multiple parallel streams.
- Delivered high-level quality reports directly to executive management, highlighting risks, release readiness, and system stability.
- Designed and executed end-to-end regression strategies for web, mobile, and device-based retail systems.
- Coordinated cross-platform release validation to ensure consistency across web and native applications.
- Participated in recruitment process, interviewing and mentoring QA engineers.
- Acted as quality gate before production releases, reducing critical production defects.
Senior Software Quality Assurance Engineer
Azerconnect LLC
Baku
01.2016 - 07.2021
- Promoted to Senior QA Engineer after demonstrating ownership across web and mobile product lines.
- Led end-to-end testing activities for large-scale telecom self-care applications serving 2M+ active users across two major operators (Nar Mobile and Bakcell).
- Responsible for full QA lifecycle of web platform and Android/iOS applications, ensuring release stability for high-traffic production environments.
- Participated in product development from requirement analysis to UAT and production validation.
- Coordinated cross-platform validation to ensure functional consistency across web and mobile apps.
- Delivered structured release reports and quality risk assessments to management before major production deployments.
- Contributed to launch of B2B applications for both telecom operators, validating business logic, tariff systems, and service management workflows.
- Acted as QA focal point during production rollouts impacting millions of subscribers.
Software Quality Assurance Engineer
Bakcell LLC
Baku
09.2015 - 01.2016
- Contributed to QA processes within telecom digital services environment.
- Participated in full-cycle testing of web-based services and internal platforms.
- Executed ATP and UAT validation for new service releases.
- Analyzed product requirements and prepared structured test scenarios for production-ready deployments.
- Collaborated closely with development teams to troubleshoot and resolve service-impacting issues.
Education
Associate of Science - Quality Control in Food Production
Moscow State University of Food Production
Moscow06.2015
Skills
- Functional, Regression, UAT
- Risk-based & Release validation
- REST APIs (Postman, Swagger)
- Log analysis (Kibana, DevTools)
- Financial & BI metrics validation
- Web, Android, iOS
- Dev / Stage / Prod environments
- Linux (user level), Raspberry Pi
- Jira, Confluence, TestRail
- BrowserStack
LANGUAGES
Russian: C2
English: C1
Turkish: C2
Azerbaijani: C2
Proficient
Advanced
Proficient
Proficient
Timeline
Senior Software Test Engineer
Slotegrator
12.2024 - Current
Senior Software Test Engineer
Limestone Digital
09.2022 - 12.2024
Senior Software Test Engineer
Azertolereya
07.2021 - 09.2022
Senior Software Quality Assurance Engineer
Azerconnect LLC
01.2016 - 07.2021
Software Quality Assurance Engineer
Bakcell LLC
09.2015 - 01.2016
Associate of Science - Quality Control in Food Production
Moscow State University of Food Production