Internet Professional
Hamburg Area, Germany
- Current
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- Independent Internet consultant at xyzzy
- Past
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- System programmer at IND Mobile Datensysteme
- Sysop at xyzzy
- System programmer at Germanischer Lloyd
- Education
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- Universität Hamburg
- IBM lab
- Matthias Claudius Gymnasium
- Connections
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24
connections
- Industry
- Internet
- Websites
Frank Ellermann’s Summary
After about 30 years in IT only few things don't change: there is always something new to learn, and if it can't be done in [pick: C, REXX, Modula-2, Fortran, ...] it isn't worthwhile. Or it is time to update the Internet standard.
Frank Ellermann’s Specialties:
XHTML, REXX, SPF, RFCs
Frank Ellermann’s Experience
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Independent Internet consultant
xyzzy
(Computer Software industry)
1998 — Present (11 years)
Development of Internet applications, Web site consultant, author of Internet drafts
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System programmer
IND Mobile Datensysteme
(Computer Networking industry)
1990 — 1997 (7 years)
That job started with developing a Z80 CP/M based operating system for Infos handhelds in cooperation with Infra Datentechnik. These activities were later continued by IND, replacing infrared by radio communications. My enthusiasm for OSI networking protocols (LAPB, X.75, etc.) above the physical layer was slightly misguided, but the network and OS design work from scratch was fun.
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Sysop
xyzzy
(Telecommunications industry)
1994 — 1996 (2 years)
The xyzzy BBS was not commercial, but routing and gateway operations were certainly interesting. I fear a FTN standard proposal about "reduced seen-by lines" (FSC-0093) didn't make it to a FTN standard, but it had a touch of "chordal graphs".
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System programmer
Germanischer Lloyd
(Privately Held; 1001-5000 employees; Maritime industry)
1980 — 1989 (9 years)
Apart from their main activity (classification of ships) the engineering department was also involved in safety surveys for wind and nuclear power plants; see the Wikipedia entry for "Germanischer Lloyd". My job included the maintenance of some engineering programs (FORTRAN), the development of a database, and a project management system (REXX) including mail.
Frank Ellermann’s Education
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Universität Hamburg
Computer Science, Mathematics 1976 — 1986
My favourites were graph theory and software engineering. I never got around to number theory, but had fun with obscure topics such as "formal semantics".
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IBM lab
internship , system programming , 1980 — 1980
"Real programmers" use assembler macros and 3270 for everything. That was before Mike Cowlishaw invented REXX.
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Matthias Claudius Gymnasium
mathematics, civics, French, Russian, Latin 1972 — 1976
Niklaus Wirth's "Systematic Programming" about Pascal was a third prize in a federal math competition and triggered my interest in CS.
- Activities and Societies:
- Rotznase (school magazine)
Additional Information
Frank Ellermann’s Websites:
Frank Ellermann’s Interests:
Internationalization, e-mail standards, Sender Policy Framework, REXX, top-level domains, Web standards
Frank Ellermann’s Groups:
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IETF - The Internet Engineering Task Force -
Hamburg -
Usenet -
FidoNet SysOps or ex-SysOps
Frank Ellermann’s Honors:
OpenSPF Council (2007)
Frank Ellermann’s Contact Settings
Interested In:
- career opportunities
- consulting offers
- new ventures
- expertise requests
- reference requests
- getting back in touch
