Engineer Test

David Corcoran

**** ** ********* **.

Port Orchard,Washington

*****.********@****.***

http://krch.freeshell.net/dcorcoran

General Development Areas

System Programming Application Programming Programming Tools

System Administration Embedded Systems Software QA

Technical Documentation Hardware Test Engineering Scripting

Database Programming Open Source Technologies Customer Support

Systems/Languages/Protocols/Utilities

Linux, Unix, VxWorks, Windows 7, Win2003, WinXP, RT/11, RSX/11M

perl (Win32::OLE, Win32::ODBC, DBI, CGI, LWP, LDAP, XPath,

HTML::TreeBuilder), shell, C/C++, Oracle PL/SQL, mysql, SQLite, Postgresql,

TCL/TK, Javascript, XSLT, Powershell, Assembly Language for various

processors

make, sed, awk, lex, yacc, m4, cvs, svn, hg, git, github, cron, gnats,

bugzilla, jira, Perforce, MS Office, P3e, WTT, Source Depot

HTML, XML, JSON, TCP/IP, SMTP, FTP, MIME, HTTP, NFS, NNTP, NIS, AD,

wireshark, DOT (graphviz)

Employment History

. Feb-13 - Present Build Engineer (contract) Disney - Seattle Wa.

Wrote build scripts in perl to automate the production of static html pages

from Visual Studio sources.

Migrated perforce projects for United Messaging to git to build under

Jenkins. Had to work around a corruption in the perforce database but was

able to salvage history past the point of corruption.

Sep-2009 - Feb-2013 Build/QA Engineer Amazon - Seattle Wa.

Responsible for builds and deployments, for Amazon's FBA suite of services

composed of some 174 discreet services as well as the automation of

outbound services tests.

Wrote numerous database driven perl-cgi pages querying various Amazon

systems utilizing multiple mechanisms (RESTful/XML, db, cli) to:

. Create and submit nightly build requests

. Monitor and report build progress

. Track outstanding changes in FBA packages in perforce

. Monitor deployments to provide developers a summary snapshot status of

changes of interest

. Interrogate build system for package information, used as a starting

point for code coverage examination

. Drive test data generation data structure creation to simulate the

creation of orders, querying catalog for product attributes

. Submit fake inventory for test purposes

May-2009 - Aug-2009 Customer Support Plainblack - Wis.

Provided technical support for WebGUI, an open source Application

Framework, as well as system administration tasks, remotely, in a Linux

environment

Jul-2008 - Dec-2008 Perl Developer Courttrax - Wa.

Designed, developed and implemented database backend for courttrax.com's

data feeds from the Alaskan state court system for web presentation. Also

wrote application to scrape Washington State BAR Association website and

populate an internal database used in Courttrax's court data aggregation

service.

Set up monitors to alert staff to revision changes on PACER web site.

Responsible for bug fixes of code that 'broke' due to changes in external

websites.

Mar-2008 - Jun-2008 QA Test Automation Engineer (contract) Attachmate -

Seattle Wa.

Wrote tests for Attachmates's RSIT for Unix ssh client and server.

May-2006 - Mar-2008 QA Test Automation Engineer Isilon Systems - Seattle

Wa.

Responsible for the development of automated test written in perl for the

test of Isilon's OneFs file/operating system. The tests covered things such

as file timestamps, permissions, ownership, and filesystem events, network

isolation between the 'backend' NIC with respect to the 'frontend' (wrote a

perl wrapper for tcpdump as nmap was not available on the platform under

test).

Converted DOT program output, meant to display state bubbles, into perl

data structures representing hierarchy of the decision logic for buffered-

writes and then analyze these relationships to determine if the correct

decision paths were being taken.

Nov-2005 - May-2006 Build Engineer (contract) Pixelworks - Seattle Wa..

Responsible for the creation of makefiles, shell/perl scripts for the

production of CDs, in a Linux environment.

Aug-2005 - Jan-2006 Perl Programmer (contract) Fred Hutchinson CRC,

Seattle Wa.

Designed perl script to determine changes made in PeopleSoft personnel

database and propagate those changes to AD to enable single-source,

Enterprise wide control of Contacts in the Address Book and mailboxes in

Exchange as well as the various unix systems

Oct 2004 - Jul 2005 SDET/Builder (contract) Microsoft - Redmond, Wa.

Wrote perl modules for the build framework to be use to build Microsoft's

Live Meeting Communicator.

Provided Build Support in the Windows NT Builder Lab

Converted batch files for the regression testing of Microsoft's Security

Configuration Wizard to jobs to run under WTT, Microsoft's Windows Test

Technology infrastructure; this entailed developing perl scripts to add and

schedule jobs in WTT

Also wrote a detailed handoff document explaining the use of the scripts

which were written with an eye towards maintenance and extensibility

Nov 2003 - Oct 2004 Partner Support Qpass - Seattle, Wa.

Responsible for the support of wireless carriers with respect to software

updates and new merchant product integration

Wrote Win32::ODBC scripts to extract merchant data to provide to wireless

carriers for maintenance and reporting purposes

Wrote DBI/mysql routines to perform reconciliation between files under

Source Code Control (VSS) and data in database

Dec 2002 - Nov 2003 Customer Support (contract) Microsoft - Issaquah, Wa.

Provided Technical support for Microsoft's Services for Unix product that

incorporated:

. writing working code samples to demonstrate usage of various SFU APIs

. research, documentation and working code sample generation to provide

solutions to customers' interface issues between Windows and Unix (issues

that required mapping a given Unix process to Windows)

. troubleshooting customer issues, including network trace analysis of

NFS/SMB traffic.

The customers I supported were developers, system and network

administrators that had in-depth understanding of systems they managed.

The major components in SFU, a POSIX subsystem that sits at the same level

as the Win32 API, include Server for NFS, User Name Mapping, Client for

NFS, Gateway for NFS and Server for NIS.

Jul 2000 - Aug 2002 System Programmer (contract) Boeing - Renton, Wa.

Wrote perl (DBI) and PL/SQL scripts to extract data from the various Boeing

databases to load Primavera Project Planner (P3e) tables

Developed shell and perl scripts under HP/UX to process periodic feeds from

legacy systems

Developed client/server utility under Win32 to perform remote table loading

across Win2000 and Unix platforms.

Developed Web scraping script, using LWP, to extract manufacturing data

where no plain text feed was available.

Mar 2000 - Jul 2000 Perl Programmer (contract) ATL - Bothell, Wa.

Wrote perl scripts to extract function information from C sources to be

written as XML for use by an Ultra Sound Controller state machine

Oct 1999 - Jan 2000 QA Lead (contract) Real Networks - Seattle, Wa.

Wrote various utilities in perl and shell to reduce the manual intervention

in the software build/release process

Wrote test cases for, and bug entries againt Real Networks Broadcasting

Network Product.

Oct 1998 - Oct 1999 Test Automation Engineer (contract) Intel - Dupont

Wa.

Wrote Tcl/Tk scripts for the test of Server Management Firmware for Intel's

High End Server Division

Automated manual tests, reducing the test time in two cases by as much as

98%.

Modularized the Sensor Test originally written for one platform to run on

others merely by specifying a different Sensor Record file, thereby greatly

reducing the development time of tests for new platforms

Oct 1998 - Oct 1999 Test Automation Engineer (contract) Boeing -

Renton, Wa.

Wrote Perl scripts to process data feeds exported from legacy systems to

import to MS SQL Server, including an interface to SMTP, for the purpose of

issuing email notifications in the event of a failure, and a Web site to

cross-reference and catalog the results.

Jun 1997 - Oct 1997 System Administrator (contract) Real Networks -

Seattle, Wa.

Wrote concurrency post http log processing utility in C++ & Perl

Wrote site checking utility in Perl to "listen" to servers and send

"trouble" pages.

Debugged and installed Amanda, University of Maryland's Network Disk

Archiver, to backup servers over the Internet.

Sep 1995 - Apr 1997 Firmware Engineer Sensory Inc - Port Orchard, Wa.

Responsible for development of real-time firmware, written in assembly, for

Voice Recognition and Synthesis consumer products

Also developed and maintained tools and utilities to facilitate the group

effort of code development.

Created suite of structured assembly language macros; they brought inline

looping control, if/else clauses and case statements to the assembler,

which greatly facilitated code development and maintenance

Developed sophisticated make files to automate the generation of include

files which disencumbered the programmer from manually declaring PUBLIC and

EXTERN symbols in the source files. Others in the group attested that this

saved them many hours and headaches during the life of a project

Wrote source code cloaker in perl which substituted descriptive symbols

with non-descriptive so as to cloak, or hide, their usage and meaning from

the users of Sensory's developer's kit.

Nov 1994 - Sep 1995 Software Test Engineer (contract) Microsoft -

Redmond, Wa.

Responsible for the test of Data Center back-end data collection task for

the Microsoft Network (MSN) on-line service; developed utilities, generated

test cases and wrote bug reports.

Developed test plan to drop data files, at a fixed rate with known good

data, to stress the Event Collector and its associated data base. Also

wrote the required utility in C++ to convert ASCII data to Binary log

files, and the perl scripts to drive it.

Developed various perl test scripts to notify key personnel in the event of

a Event Collector malfunction which greatly helped facilitate fault

isolation.

Wrote perl lexical scan utility to perform a sanity check of ASCII data

issued from data center.

Automated many manual tests using perl and thus increased coverage of

regression tests.

Sep 1988 - Nov 1994 Hardware Test Engineer Aspect Telecom. - San

Jose, Ca.

Worked closely with engineering to specify tests, develop and maintain test

software/fixtures and write test procedures for the test of

telecommunication equipment. Provided system administration services for

the UNIX boxes on the manufacturing floor, including network

troubleshooting, system configuration and generation of bootstrappable

tapes for software installation

Developed diagnostics for VME based, embedded processor (68010, 8051),

voice cards in C.

Wrote test equipment and low level communication interface routines for use

by automated test programs.

Developed and maintained programming environment for test software

development.

Wrote T1 bypass diagnostics in C which were highly acclaimed by production

personnel

Extracted production software from a UNIX environment and ported to VxWorks

enabling code re-use thus reducing development time. This task required

deft use of many UNIX utilities: nm, awk, sed, cxref, ctags etc.

Developed Windows 3.1 based peripheral test eliminating the need for

production inventory (~$300K).

Wrote many ksh/sh utilities to aid in code development and management of

the hardware test systems in manufacturing, including (without limitation):

. Extraction of file dependencies (*.h) file from C sources

Extraction of environment variable names from makefiles to aid in their

maintenance

Generation of tags files from cxref output enabling access to any symbol in

a file

Extraction of function prototypes from C sources for human as well as

compiler consumption

Scripts to control revision and delivery of files to networked test

stations

Distribution tape generation utilities and backup utilities

Jan 1988 - Jun 1988 Firmware - Engineer Qume - Milpitas, Ca.

As a part of a seven member team, developed firmware for a ASCII terminal

product.

Wrote utilities to ease pain of system management on HP 64000 emulator

system

Designed and implemented keyboard driver.

Developed suite of HP 640000 assembly macros to generate scan code tables

easily

Oct 1981 - Jan 1988 Associate Test Engineer Perkin Elmer - Hayward,

Ca.

Provided general trouble shooting support and system management of PDP/11s,

under RSX11, in the manufacturing area

Wrote assembly language diagnostics for an embedded 68000 processor

controller

Designed and developed in-circuit ATE test programs for various digital and

analog boards

Designed and developed stand-alone assembly programs for the test and

integration of UNIBUS device controllers

Developed data acquisition and analysis software to drive GP-IB based

spectrum analyzers. These programs greatly eased mechanical and electrical

engineer's job in characterizing MEBES III and AEBEL 150 Electron Beam

Lithography machines

As the principal software designer of a two member team, developed and

implemented the test strategy for the test of an Electron Beam Lithography

data path The software, written FORTRAN 77, used the host machine to drive

the system under test and a logic analyzer for capturing expected output.

This resulted in:

. up to an 80% reduction in test time

. a unified test approach across test departments

. the elimination of custom hardware (a one time savings of $150K).

After implementation, trained test personnel, produced extensive on-line

help screens and wrote demo programs.

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