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 Expert  715979

Expert in Computer Programming and Technology, Perl, C, and CGI Programming, WWW, Computer Security, and Spam

Available for your Consulting and Expert Witness Needs

Pennsylvania (PA)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness Market Research

Summary of Expertise: Listed with other top experts in: 
Expert has been programming in Perl since 1994 and virtually all of the code he has written in the past 10 years has been in this language. He teaches Perl classes internationally, and considers himself an expert in most aspects of the language.

Perl programming language

Expert has served as a consultant for numerous companies worldwide in the development of CGI scripts and server-side programs (including search and retrieval, dynamic page design, email systems, automated site maintenance, etc.). He also runs a number of web servers that handle over a million hits per day, with tens of thousands of CGI script executions daily. Expert has taught classes internationally on effective and secure management of web servers and web server software development.

World Wide Web programming


World Wide Web software




Common Gateway Interface




hypertext markup language


World Wide Web application

Expert has been programming in C on a wide variety of projects ranging from operating systems to compilers and interpreters to user utilities. He has also taught courses in C and considers himself an expert in all aspects of the language, including the newer ANSI version.

C programming language


ANSI C programming language

Over the course of his career, Expert has designed and written five compilers and interpreters, and has served as an expert consultant to three companies in the optimization and code generation aspects of four other compilers.



ANSI C compiler


programming language processor software





The main thrust of Expert's career has been in the design, implementation, evaluation, analysis, and optimization of computer software. He has worked on a wide variety of projects and products, including real-time control systems, operating systems, compilers, interpreters, user utilities, and kernel device driver software, in a variety of languages, including Perl, C, FORTRAN, Pascal, assembler, Ada, and Bliss.

computer software


computer programming


application development system


client/server architecture


client/server computing


client/server system development


high-level programming language


procedural programming language


software system development


source code

Expert has worked in and around the UNIX operating system since 1976, modifying the kernel, writing device drivers, and teaching classes on intervals. He is very familiar with the internals of the UNIX kernel. He has also participated on a team that developed a real-time operating system written in and for Ada.

UNIX operating system


operating system


multiprocessing operating system


multitasking operating system


SCO UNIX operating system


SCO XENIX operating system


Solaris operating system


UNIX network


UNIX software development tool


UNIX system administration


Linux operating system

Although he has always been concerned with the ergonomics of the software he has developed, Expert's recent current work is specifically oriented towards the development of a User Interface Management System.

user interface

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Pittsburgh, Pennsylvania;  Akron, Ohio;  Youngstown, Ohio;  and Canton, Ohio.

Often requested
with this expert:

Smart Cards; Software: C, C#, Visual Basic.NET
World Wide Web, Hypertext Languages, etc.
Software Disputes, Internet Technology, Telecommunications,...
Internet, Ecommerce, Advertising, Search, Data Mgmt,...

Year   Degree   Subject   Institution  
1983   M.S.   Applied Mathematics   (Undisclosed University)  
1977   B.S.   Mathematics   (Undisclosed University)  

Work History:
Years   Employer   Department   Title  

1990 to


(Undisclosed University)



Education Director


1986 to 1992


Software Engineering Institute



Senior Technical Staff


1979 to




Independent Consultant/Software Developer


1977 to 1984


Mellon Institute


Computer Engineering Center


Manager, Software Systems


1977 to


(Undisclosed University)


Department of Mathematics




Career Accomplishments:

Expert is a member of the Expert's University, the European Unix User's Group, and the IEEE. He is past Chair of the Expert's University Staff Council and the Expert's University Grievance Review Board.

Professional Appointments

He is the Board President of LoneWolf Systems, and of KML Enterprises, Inc.

Publications and Patents Summary

Expert has dozens of publications.

Selected Publications and Publishers  
 - Proceedings of the USENIX Intrusion Detection Symposium  
 - ACM Interactions  
 - Computers and Security  
 - Proceedings of the 20th Large Installation System Administration Conference  
 - Proceedings of the First USENIX Workshop on the Analysis of System Logs  

Consulting Services:
Selected Consulting Examples:
  • Mr. Kelin has been a technical consultant to CBS and the History Channel.
  • He was a security consultant for J.P. Morgan Chase.
  • Expert has been a Perl and web consultant for numerous companies.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Expert Witness Experience Summary:
Expert has testified in Federal Court (Albuquerque Circuit), has been deposed numerous times, and has prepared expert reports. He has been an expert witness in patent and contract litigations.
Recent Litigation Client Requests:
  • Software expert for consulting on internet portal software.
  • Expert witness source code for consulting on computer programming.
  • Expert in computer forensics for consulting on computer log evidence and website traffic.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
Years   Country / Region   Summary
2001 to 2001   Russia   Expert was an invited speaker at the Russian Academy's International Conference on Electronic Commerce.
2001 to 2010   Sweden/Finland   He was a tutorial speaker at the Nordic Unix User's Groups annual meetings, and has been invited to keynote 4 times at the Danish FreeBSD conference.
1980 to 1983   Israel   Expert was a consultant for the Israel Aircraft Corporation (ELTA) in Ashdod.
2007 to 2009   Australia   Expert has been invited three times to speak at the Australian CERT conference.
2009 to   Netherlands   Expert was the closing keynote for GOVCERT, the Dutch national computer security conference.

Language Skills:
Foreign Language   Description
Russian   Expert is competant in Russian (not fluent, but able to navigate the language and can speak, read, and write Russian).
German   He is able to comprehend German in a social context (he can speak and read it but is not fluent).
French   Expert is able to navigate with facility through France/Canada (he can speak and read French but is not fluent).

Market Research:
Expert brought Alpha UIMS to market for LoneWolf Systems, and founded the Internet Business Pages.

Click the green button above to contact Expert for a free initial screening call regarding your marketing research, industry research, and company research needs.  For research needs involving multiple experts or secondary research, a Research Director can be assigned to coordinate the work into a custom report for you as a potentially quicker and more cost effective alternative to doing this work yourself or hiring a boutique consultancy.  Remember, your initial screening call to speak with Expert is free.

Additional Skills and Services:

Expert has developed dozens of classes, ranging from Unix Internals, to Perl Programming, Web Programming, Device Driver Design and Implementation, Security Auditing. He has also taught hundreds of classes worldwide at conferences and in on-site education series over the past 25 years.

Other Skills and Services

Expert is a skilled and facile speaker, who can think on his feet. He performed for 6 years in a professional improvisational comedy troupe, and honed his quick mental reflexes for on-target testimony.


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