András Kelen

After graduating from university, he started working in the Digital Development Department of the Electronic Measuring Devices Factory (EMG) (designing integrated circuit units for the factory's third-generation computers).
From 1970 he was a technical team leader in the computer center of the Car and Parts Trading Company (Autoker). In the meantime, he spent a year in England on courses at the ICL company and worked at ICL's central London regional center (1971-72).
From 1974 to 1979, he worked at SZÁMOK as a project manager, software designer and developer, and then as a software instructor.

Between 1979 and 1985, he was the editor-in-chief of the Technical Publishing House.
Between 1984 and 1986, he was marketing director at Microsystem Cooperative.

In 1986, he founded Triad Gmk. (later Ltd.), which he led until his death (trading high-performance printers; in addition, reselling special software technology tools, e.g. tools for application lifecycle management, requirements management and testing of real-time applications).

He was active in the life of several professional communities, especially at the Hungarian Society of Software Engineers, working on the Society's Publication Committee. He was a member and then leader of the Object Oriented Developers and Users Club. He was a member of the American Chamber of Commerce in Hungary since its founding (1990).