
Varsandán Szabolcs
Verified Expert in Engineering
Software Quality Assurance Engineer and Developer
Bačka Topola, Serbia
Toptal member since July 21, 2026
Varsandán is a senior software quality assurance (QA) engineer with 15+ years of experience delivering high-quality web, mobile, SaaS, eCommerce, AI, and fintech products for international clients. He has led manual QA teams, created test plans, defined regression testing strategies, and executed end-to-end testing, API validation, SQL data verification, and regression testing. With a strong background in Agile, Varsandán ensures product quality, data consistency, and reliable software releases.
Portfolio
Experience
- Exploratory Testing - 15 years
- Regression Testing - 15 years
- Manual Software Testing - 15 years
- Manual QA - 15 years
- Jira - 10 years
- TestRail - 10 years
- Trello - 8 years
- Postman - 5 years
Preferred Environment
Jira, Confluence, Zephyr, TestRail, Asana, Postman, SQL, Agile QA, DBeaver, PostgreSQL
The most amazing...
...project I've led was delivering end-to-end QA for a UK eCommerce platform, from planning to successful releases.
Work Experience
Founder | CEO
Szabi QA
- Provided comprehensive testing solutions covering all product aspects, including reliability, scalability, security, and usability.
- Offered regular updates on testing progress and assisted with troubleshooting issues.
- Leveraged a deep understanding of the software development cycle to help achieve goals quickly and efficiently.
Senior Software QA Engineer
Edudev
- Worked as a fully remote contractor for a Hungary-based company.
- Tested all the changes made by the development team on the development, test, and UAT environments.
- Used DBeaver and Bruno to test back-end changes, made API calls, and tested responses.
- Reported issues and created documentation using Jira and Confluence.
- Tested data consistency using SQL queries, which was crucial during client migrations.
- Performed end-to-end testing of user register and login flows, as well as on-boarding flows.
- Tested registration flow and different user permissions.
- Wrote test plans and cases using Zephyr, then used them in regression testing.
- Attended all sprint ceremonies, including planning, refinement, and retro sessions.
- Provided feedback on improving the user experience.
Senior Software QA Engineer
Accelex
- Worked as a fully remote contractor for a UK-based company.
- Led the manual QA team, organized the work, and made clarification calls with BAs.
- Brainstormed with the team and communicated with the business analyst.
- Reported issues, followed the lifecycle of the issues, and provided feedback as necessary.
- Tested all the changes made by the development team on the QA and production environment sites.
- Reported issues and created documentation using Jira and Confluence.
- Performed end-to-end testing of user registration, login, and onboarding flows.
- Wrote test plans and cases using Testrail, Trello, and Google Docs.
- Tested the production web application after the release.
- Formed the regression test scope and created reports afterward.
Lead QA Engineer
The Sole Supplier
- Worked as a fully remote contractor for a UK-based company.
- Tested all the changes made by the development team on the QA and production environment sites.
- Tested back-end changes, including CMS (WordPress), Algolia, Clevertap, Braze, User Service, and conducted API testing using Swagger and Postman.
- Reported issues and created documentation using Jira and Confluence.
- Tested all the data consistency between the webpage and the database.
- Conducted end-to-end testing of user registration, login, and onboarding flows.
- Tested payment and seller registration flows, ensuring all data was stored correctly.
- Wrote test plans and cases using Testrail, Trello, and Google Docs.
- Attended all sprint ceremonies, including planning, refinement, and retro sessions.
- Provided feedback on how to improve the user experience.
Medior Manual Tester | QA Team Lead
WeDoQA
- Led the manual QA team by conducting daily meetings and handling tasks for testers.
- Handled project management, including task handling and communication.
- Coordinated with clients and manual QA analysts regarding QA testing.
Manual QA
WeDoQA
- Conducted manual testing primarily on smaller projects, focusing on web app testing.
- Added and executed test cases for smaller projects.
- Conducted testing on iOS and Android apps, along with web apps.
Experience
AI-powered Private Investment Data Platform | Accelex
I led the manual QA team, planned regression testing, created test documentation, validated complex financial data, executed end-to-end testing, and collaborated closely with business analysts and developers. My responsibilities included defect management, release validation, reporting, and ensuring high product quality across multiple releases.
Global eCommerce Marketplace Platform
The project involved continuous collaboration with developers and product owners to deliver high-quality releases.
Education Management Platform
https://www.edudevzrt.hu/Healthcare Management Platform
https://www.doctochealth.com/Financial Planning and Wealth Management Platform
http://www.retireup.com/Cannabis Retail POS and iPad Platform
Accounting and Tax Management Platform
https://www.getcoconut.com/Cryptocurrency Exchange and Wallet Platform
https://www.bitmex.com/Education
Bachelor's Degree in Materials Science
University of Novi Sad - Novi Sad, Serbia
Certifications
Software Testing Masterclass
Udemy
AI Basics
Gábor Dénes Egyetem
Agile Delivery Training
Online Course
How to Identify and Combat Spam and Phishing Emails
Udemy
CYPRESS | Step-by-step for Beginners | Hands-on Training
Udemy
Google Analytics 4 for Beginners
Udemy
Software Testing Masterclass
Udemy
Cybersecurity Habits Masterclass
Udemy
Manual Software Tester
Wedoqa
Skills
Tools
Jira, Zephyr, TestRail, Trello, Google Docs, Postman, Asana, Confluence, Braze, Elastic
Paradigms
Functional Testing, Manual Testing, Sanity Testing, E2E Testing, Testing, Agile
Storage
DBeaver, PostgreSQL
Languages
SQL
Frameworks
Swagger, Cypress
Platforms
Azure, WordPress, Algolia, CleverTap, Rainforest QA, Twilio
Other
Manual QA, Smoke Testing, UI Testing, UX Testing, QA Testing, Regression Testing, Exploratory Testing, Manual Software Testing, Quality Assurance (QA), API Testing, Bruno, CMS, Monday.com, ClickUp, Materials Science, Software QA, Mobile App Testing, Web App Testing, Website QA, Website Testing, Cybersecurity awareness, Google Analytics 4 (GA4), Spam Filtering, Phishing Filtering, AI basics, Test Cases, Agile QA, QA Process, QA Documentation, QA Leadership, POS testing, IOS app testing, Bluetooth printer testing, IPAD testing, Crypto, Fintech
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