Software Quality Assurance
I find the errors before your clients do—giving your company the feeling of credibility, reliability and excellence it deserves.
With 15+ years experience in software quality assurance, I am well-equipped to steer your website, app or API to a place where it shines—without clunky errors, both obvious and harder to detect ones. From startups to larger companies and new launch products to bigger, more complex products, I put the desired product through a series of sequential, thorough tests to be sure it is perfectly polished before it reaches the screen of your client.
I have guided organizations worldwide through every stage of the product-development lifecycle. From early concept modeling to full-scale implementation, I apply proven methodologies and the latest industry standards to ensure every project meets exacting performance, safety, and sustainability benchmarks.
Software quality assurance is the one step of product creation you’d be insane to skip—think about how you feel when you click a broken link.
I’m Alexander.
I’m an instant tester ready to take on your project.
The Main Points
A long history of software quality testing experience in banks, big data projects, media companies, and startups
Native of Hamburg, residing in Zürich since 2022
Fluent in German, English and Spanish
Specialized in agile testing of user stories and E2E / UAT for large releases
Offers 3 in 1: functional testing, layout testing, and penetration testing
Is used to test overdue releases under time pressure
Get To Know My Training
Some of my Certificates
Graduate in Business Informatics (University of Applied Sciences)
ISTQB Certified Tester (CTFL) since 2008
Certified Professional for Requirements Engineering (CPRE)
Certified ScrumMaster (CSM)
Certified Scrum Product Owner (CSPO)
SAFe 4 Practitioner Certification
Google Cybersecurity Specialization Course
Cyber Security Specialist mit eidgenössischem Fachausweis
CISSP Associate of (ISC)²
PortSwigger Burp Suite Certified Practitioner (BSCP)
OffSec Certified Professional+ (OSCP+)
Projects I’ve Worked On
My work experience comprises a long history of software quality testing experience in banks, big data projects, and start-ups. My last projects were:
Online Bank
Test design, test, and test automation of Android and iOS apps
as well as an online-banking web application
Test of the PSD2 compliance
Code review of automated tests
Managing and mentoring of junior QA engineers
Responsible for the final release approval
Debugging of complex system errors
With: JavaScript, Cypress, Detox Test Framework, Xcode, Android Studio
Market Research Institute
Test conception, test, and test automation of web applications to display and research big data, similar to Google Analytics
Configuration and administration of the continuous deployment pipeline (CI/CD)
Code review of automated tests
Review of specifications
With: Protractor, Cucumber BDD, Selenium WebDriver, TypeScript
Media Company
Consultancy on evaluation and selection of test tools
Test, and test automation of Android and iOS apps
Agile testing of user stories
Test design and test automation of mobile websites
Test conception, test, and test automation of an online payment system
Review of specifications
With: Robot Framework BDD, Cucumber BDD, Java, Selenium WebDriver, Xcode, Ruby, Sauce Labs OnDemand
Many more projects since 2010.
For further information, see my LinkedIn or contact me.
My Services
Exploratory Testing / Manual Testing
I analyze the software without predefined test cases.
Mobile Application Testing
Involves testing the application on various mobile devices and network conditions.
AI in Testing
Explore how AI can support your testing needs.
Test Automation
Use automated tests to reduce the manual test effort.
Security Testing
Identify vulnerabilities in the software application, hardware, and network.
Load & Performance Testing
Evaluates how the software works under various conditions.
DevOps and CI/CD
Enhance collaboration of software development & testing.
Chaos and Resilience Testing
Introduce failures and disruptions to test the complete system.
Accessibility Testing
Ensure your software is usable for people with disabilities.
Test Management
Encompass activities required to manage and control the testing process.
Testing Assessments
Assess the current state of your testing process.
Test Data Management
Involves creating and managing data that is used during software testing.
What Sets Me Apart
My Motto: Done Right, Done Once
Precision, high-quality work, done with pride and passion. Nothing pleases me more than a well-running product.
Flexibility To Meet Your Unique Needs
Start tomorrow? Complete something over the weekend? Engage in an especially short or long project? I like my work to be engaging, diverse and challenging. That’s why I decided to work as a freelance software quality assurance engineer.
Proven Track Record And Education
I make sure to get all of the important certifications, so you can feel assured your project will be done properly and to a high standard. You can also read some of my testimonials here to get a feeling for what my previous employers thought of my work.
What Clients Say
“Herr van der Berg arbeitet auch in schwierigen Situationen und unter Zeitdruck absolut zuverlässig, behielt dabei einen klaren Kopf und hielt Terminvorgaben stets ein.”
Leiter Development Operations, für Projekt mit Mitarbeit als Angestellter
“Wir lernten Herrn van der Berg als einen sehr zuverlässigen Mitarbeiter kennen. Die ihm gestellten Aufgaben erledigte er stets zu unserer vollsten Zufriedenheit.”
Geschäftsführer, für Projekt mit Mitarbeit als Angestellter
“Herr van der Berg besitzt ein äußerst fundiertes und breites Fachwissen in allen Bereichen der Software-QA. Hinzu kommt seine sehr gute Kenntnis agiler Entwicklungsprozesse.”
IT-Leiter, für Projekt mit freiberuflicher Mitarbeit
“Herr van der Berg besitzt umfangreiche Fachkenntnisse, eine sehr zielstrebige und umsichtige Arbeitsweise sowie ein hohes Maß an Selbständigkeit.”
Kaufmännischer Leiter, für Projekt mit Mitarbeit als Angestellter
Your Questions, Answered
How do we know which service is right for our project?
Every engagement begins with a no-obligation discovery call where I learn about your objectives, timelines, and constraints. From there, I draft a customized proposal outlining the most effective path forward.
Do you also work with private individuals?
No, I focus on business customers only (B2B).
How does the invoicing work?
Billing occurs via payroll (e.g., the PayrollPlus Freelancer model): I am an employee, and the client receives a monthly invoice. No risk of misclassification as an employee (Scheinselbständigkeit).
What are the minimum project requirements for you to work for me?
The minimum project length is one week. Daily bookings are also acceptable, provided I can schedule them.
In which geographic regions do you work?
On-site in Zürich or the surrounding area; other locations can be done remotely. Travel to Germany is possible once a month.
What is your availability, and how soon can you start?
If available, I can be at your office starting tomorrow.
Do you work on the weekends?
Yes, weekend work is completely possible.
Let’s Make Sure Your Product Is Perfect
Ready to test every corner of your product for cobwebs, skeletons and other undesirable elements? Reach out today to schedule a complimentary consultation and discover how my testing services can polish your product for launch or an upcoming release.