Wolfgang Kubisiak

Freelance software developer for over 45 years (except for a brief stint at Adesso). A feel for good design. Scope and depth of experience:

40 years C/C++

24 years Java (if productivity is desired, also Groovy)

25 years Ruby (I prefer highly productive integration language over Perl, Php)

35 years Unix (Linux, Solaris, MacOS) system programming and shell scripting

20 years MS Windows system programming

7 years real-time operating systems (OS-9)

Various industries and application areas: Embedded Systems (measuring devices), Telecommunications (paging systems), Tourism (CRM), Banks (especially market risk management, derivative instruments)

In July 2025, I received my new certificate: AI Certificate for Professionals from WBS CODING SCHOOL

There, I also learned to use Cursor in my practical work and can now generate specifications for clearly defined software quickly and efficiently - supported by my life experience and controlled by BDD.

Preferred approach:

Agile creation of the (human-readable yet automatically executable) specification with all stakeholders, using an agile, test-driven approach to create new prototypes as needed (daily, weekly) so that the customer receives feedback ASAP and can (and will!!!) revise their requirements, or miscommunication is identified ASAP and errors are avoided early. With this strategy, a maintainable (end) product is created at minimal cost, which contains 100% of the customer's requirements and adheres to them 100%.

For older projects that have not yet adopted this approach, I can provide consulting and participation to guide them in this direction: The AI generates the human-readable specifications, which must be approved and future changes incorporated.

I can also provide "just" the currently needed development capacity, and due to my experience, I will avoid many mistakes that prove costly for developers with less experience...