John T. Criswell
jcriswel "at" bigw.org

Objective

Currently employed as a Research Programmer for the LLVM Team.

Background Summary

Programmer with eight years professional programming experience.

Systems: Solaris, AIX, Linux, NetBSD, Windows NT/2000, MacOS, NextStep, MkLinux, VMS, Plan 9, BeOS, Trusted (B1) systems.

Languages: C/C++, Visual C++, Java, C#, Python, Pascal, BASIC, KSH, CGI, HTML, and assembly (i386, MIPS, VAX, and 65C02).

Tools: LLVM, Java RMI, CORBA, OpenSSL, UNIX Sockets, Lex, Yacc, Autoconf, Libtool, Libpcap, Xt Toolkit, nroff, troff, and Microsoft Visual Studio.

Software: Apache, Netscape Enterprise Server, Netscape Proxy Server, OpenSSH, X-Windows, Matlab, Microsoft Word, Excel and PowerPoint, and IIS.

Work Experience

Research Programmer
LLVM Research Group
University of Illinois at Urbana Champaign
2003-present

Projects:

• Prepared the LLVM source for public distribution.
• Ported the LLVM build system to autoconf.
• Added an option to the linker to generate native code.
• Enhanced the LLVM test suite and ported portions of it to QMTest.
• Implemented a memory pool allocation library.
• Fixed bugs within the GCC front end.
• Merged fixes from the original GCC 3.4 source tree into the LLVM GCC front end.
• Determined how to collect cache miss statistics for the AMD Athlon, Pentium 4, and UltraSparc IIIi.
• Located and reduced test cases for bugs.

Senior Engineer
Argus Systems Group, Inc.
2002-2003

Projects:

• Ported B1 network security enhancements to AIX 5.2.

Trusted Systems Engineer
Argus Systems Group, Inc.
1995-2002

Projects:

• Implemented the PitBull.com Pack Security Gateway.
• Developed and debugged kernel level network drivers for Solaris and AIX.
• Implemented kernel level security enhancements in AIX and Solaris for PitBull Foundation.
• Implemented Trusted OpenSSH for PitBull.com Pack.
• Reviewed the Windows 2000 Native API to find deficiencies in PitBull Protector.
• Enhanced and debugged PitBull Protector (a Windows 2000 security enhancement driver).
• Designed and implemented automated tests for PitBull Foundation.
• Created AIX, Solaris, and Windows software packages.

Software Engineer
Open Port Technology, Inc.
1995

Projects:

• Implemented a development tool that generated upgrade utilities.

Education

University of Illinois at Urbana Champaign
College of Engineering
Bachelor of Science in Computer Science
Graduated May 2003

References

References available upon request.

Portfolio

My portfolio contains a humble sample of my work.