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<link href="markdown.css" rel="stylesheet"></link>
Programmer / Systems Administrator
---------------------------------
#### SUMMARY:
Versatile problem solver, passionate about security, stability, and
portability. Broad experience with applications development and systems
administration using BSD, GNU/Linux, Unix, free and open source software, and
Microsoft platforms. Skilled in computer security and privacy, disk imaging,
and software-based data recovery. Strong customer service skills. Excellent
written and verbal communication.
#### PROFESSIONAL EXPERIENCE:
__Coydog Software__
__Developer / Proprietor__
(2012 - present)
Developed mobile Android applications (TCP portscanner, GPL-licensed live
wallpaper) in Java with Eclipse and Android SDK for sale on [Google Play
store.](https://play.google.com/store/apps/developer?id=Coydog+Software)
__Starbucks Coffee Company__
__Barista__
(2006 - present)
Provided excellent customer service, focusing on internal standards compliance.
__Pyramid Digital Solutions__
__Software Developer / Programmer__
(2000 - 2004)
Maintained and enhanced a roughly 3/4 million line Win32 C++ shared codebase
comprising CGI applications, a voice response unit (VRU), and an MFC data
conversion application. Interfaced directly with customers on sensitive issues
requiring close communication between developer and client.
Developed middleware and web user interfaces in Visual Studio for SunGard EBS
OmniPlan / OmniPlus retirement benefits recordkeeping systems. Maintained
monolithic native C++ IIS CGI applications enabling customer service
representatives, 401(k) plan administrators, and plan participants to view and
modify retirement plan data. Worked closely with in-house business analysts and
customer teams to translate domain knowledge and business needs into software
specifications and implementations.
* Implemented comment functionality in proprietary scripting engine for CGI
applications.
* Implemented event-driven finite state machine XML parser with expat to handle
payroll input documents too large for MSXML DOM parsing.
* Brought application XML output into standard compliance.
* Profiled desktop and CGI applications to identify performance bottlenecks.
* Provided user-configurable colors for graphs with GSW library.
* Designed generic character and string sanitation / escaping / encoding
functionality to enhance standards compliance and functionality of entire
product suite for XML, HTML, URL, and configuration handling.
* Wrote internal and end-user documentation for all fixes and enhancements.
* Identified and fixed GUI threading issues in Win32 MFC desktop application.
* Tracked and documented revisions in Visual SourceSafe.
* Maintained and enhanced in-house bug tracking and customer relationship
management web application in ColdFusion and MS SQL Server.
__The MATRIX, Inc__
__Programmer / Systems Administrator__
(1999)
* Developed data-driven customer web sites in HTML and ColdFusion with
SQL/ODBC.
* Implemented secure e-commerce sites with credit card processing via web
services over SSL.
* Administrated HTTP/HTTPS (Apache, IIS, O'Reilly), DNS (BIND), SMTP
(Sendmail), and POP3 (Courier) for 765 users and 192 domains.
* Improved service availability and performance by migrating legacy Windows NT
4.0/3.51 infrastructure to FreeBSD and OpenBSD.
* Optimized DNS zone cache times to improve propagation of customer-requested
changes.
* Performed onsite network maintenance for corporate clients in heterogeneous
environments (SCO Unix, various MS platforms).
__Westinghouse__
__Intern__
(1998)
Assisted staff with systems and network administration tasks in a Windows NT
4.0/Cisco/Bay Networks environment. Built inventory database in MS Access. Ran
network cable. Resolved helpdesk issues.
#### OPEN SOURCE / COMMUNITY PROJECTS:
__ZMap project (University of Michigan)__
__Volunteer C programmer__
(2013 - present)
Ported zmap multithreaded network scanner from Linux/gcc to FreeBSD/clang.
Replaced Linux raw sockets interface with more portable pcap API and packet
crafting. Implemented portable protocol header structs using C99 stdint types
to replace Linux-specific system structs.
[Port repository](https://github.com/coydog/zmap-freebsd)
__Gentoo Foundation__
__Volunteer C programmer__
(2012 - present)
Submitted patches for legacy X11 system load monitor applications. Fixed bugs
including data type issues on 64-bit architectures with greater system
resources than were possible on original i386 platform, and issues with the
ever-evolving Linux procfs API. *Not an offical Gentoo developer.* Work samples
available under the following tickets:
[404323](https://bugs.gentoo.org/show_bug.cgi?id=404323)
[407325](https://bugs.gentoo.org/show_bug.cgi?id=407325)
[410093](https://bugs.gentoo.org/show_bug.cgi?id=410093)
#### Independent projects
(1999-present)
* Developed audiosniff, a network monitor in C that represents network traffic
as audio tones to aid network troubleshooting and development. Audiosniff
intercepts traffic using pcap and outputs tones with the speaker driver of
FreeBSD, NetBSD, or OpenBSD. Ported audiosniff to Linux by implementing a DSP
sine wave tone generator using the portaudio library.
[Repository](https://github.com/coydog/audiosniff)
* Developed fouriergen, a simple DSP synthesizer capable of harmonies, to
enable music composition using shell scripting.
* Wrote breaknode.py, a Python script to test Node.js HTTP servers for
vulnerability to the request pipelining denial of service attack in versions
prior to October 2013.
* Updated legacy ypsnarf security auditing tool for NIS+ for modern Solaris
derivatives. Ported the tool to Linux. [Repository](https://github.com/coydog/ypsnarf-2013)
* Developed utilities using C and Bash shell scripting for drive imaging and
backups on Linux, BSD, and Mac OS X. Utilities wipe free space, image the
storage device using dd, and compress with gzip or bzip2, using a
cryptographic hash for integrity checking.
* Conducted research into improving performance of consumer-market routers by
offloading DHCP and DNS services onto NetBSD-current/evbarm on RaspberryPi.
* Implemented MP3 player with web browser interface for home stereo system,
using FreeBSD 3.4, Perl CGI scripts, and MySQL on a headless PC.
* Wrote a portable TCP portscanner, compatible with most Unix systems, Linux,
Windows, and VMS. [Repository](https://github.com/coydog/drunkscan)
* Implemented an RSS reader in PHP.