Mr. Koehring has over 30 years of software analysis, design, and development experience, concentrating on object-oriented application software development since 1997. He is experienced in agile software development, including Scrum, pair programming, unit testing, and test-driven development.
Most recently, Mr. Koehring has had considerable experience with digital signature and data encryption using industry standard public-key cryptography mechanisms, including X.509 certificates, PKCS #7 cryptographic message syntax and multiple message digest, signature and encryption algorithms. Previous experience includes developing telephony applications for the telemarketing and voice response industries, and writing development tools for the MC68000 microprocessor.
Mr. Koehring is very familiar with multiple networking protocols and standards, including TCP/IP, HTTP, FTP, MIME, S/MIME, and OSI. His coding background includes Java, Smalltalk, C, C++, and Visual Basic. His experience with operating environments includes Microsoft Windows, Linux, Mac OS X, Solaris, and SunOS.