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Alexander DierlAD

Alexander Dierl

Experienced Software Tester in the Payment Sector

€800/day
München, DE
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alexander

Experienced software tester in the payments sector with over 9 years of professional experience in software quality assurance, test management, and test automation.

Specialized in mobile payments (Apple/Android), card processing (Girocard, VISA, Mastercard), and quality assurance of complex payment systems.

Extensive project experience in test case creation, test execution, and automation, as well as in test management and quality assurance in agile environments. Profound knowledge of common test tools and frameworks, complemented by ISTQB certification.

Strengths: structured work approach, quick familiarization with complex systems, close collaboration with development teams and stakeholders.

Goal: Seeking a new challenge as a (Senior) Software Tester, optionally in the Payments, Banking, or FinTech sector, preferably with a focus on test automation and quality assurance of modern systems.
  • German

    Native or bilingual

  • English

    Conversational

Can work on-site
München (up to 50km)

Experience

  • Alexander Dierl
    Professional Development
    SOFTWARE PUBLISHING
    October 2025 - Today (8 months)
    • Implementation of own technical projects with a focus on test-related work
    • Development and validation of Python scripts for data processing and web scraping
    • Functional testing of a proprietary Android application (emulator tests and tests on real devices)
    • Analysis of errors, edge cases, and data inconsistencies
    • Application of structured testing and analysis approaches to self-developed solutions
    Testing Mobile Payment
  • Finanz Informatik
    Software Tester in the Payment Sector
    BANKING AND INSURANCE
    September 2023 - September 2025 (2 years)
    • Testing in the area of mobile payment for Girocards and credit cards (Apple/Android).
    • Testing in card processing (transaction-based tests VISA/Mastercard), test automation.
    Testing Mobile Payment
  • Finanz Informatik
    Software Tester
    BANKING AND INSURANCE
    October 2022 - August 2023 (10 months)
    • Testing in the area of mobile payment for Girocards and credit cards (Apple/Android).
    • Testing in card processing (transaction-based tests VISA/Mastercard), test automation.
    Testing Mobile Payment

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Education

  • Application Developer (Fachinformatiker Anwendungsentwicklung)
    IHK Munich and Upper Bavaria
    2016

Certifications

  • ISTQB Certified Tester
    iSQI
    2019
    Test Management Test Tools Testing

Skill set

Categories