David Stallard Email & Phone Number

Littleton, Co, Us

Greenwood Village, Colorado

* Primary systems administrator, Atlassian Jira issue tracking system. Includes administering the tool itself, designing new workflows and processes and interfacing with the vendor as needed, as well as maintaining environment resources, disaster recovery capability, and real-time monitoring.* Primary systems administrator, Atlassian Confluence documentation wiki.* Systems administator, Gitlab source control management system.* Systems administrator, Jenkins build management system.* Contributed to design of value stream/full stack team model as the technology organization moved into Agile methodologies.* Responsible for managing and executing production changes for many divisions within the company, each with their unique requirements and processes.

Englewood, Colorado

* Automated continuous integration and release builds using both Atlassian Bamboo and Jenkins build servers, on top of Perforce and Subversion source control management systems.* Implemented Sonar analysis in maven builds to provide developers with various statistics in order to improve efficiency and reliability of the source code.* Organized end-of-sprint Build Readiness Review meetings to consolidate the efforts of several inter-company development teams and produce a release for installation to the test environment.* Authored and reviewed various supporting documentation as required by the program, including Software Configuration Index and Version Description documents.* Developed Perl scripts to automate recurring manual tasks to save time and improve quality.

Dublin, Ohio

* Co-designed and administered a new build and install methodology based on concepts of Continuous Delivery in order to introduce standardization to the company's disaparate and inconsistent legacy processes. Implemented using Quickbuild, Maven, Groovy, and Perl.* Developed and maintained Perl scripts in a linux enviornment covering all aspects related to pushing software into production in a manner consistent with the company's ISO 27001 certification, with a strong focus on process automation. Worked heavily with development groups to define and debug build process, as well as with the production control team to develop and maintain the tools required to install applications into production.* System administrator for Subversion source code management system housing roughly 1100 repositories and serving hundreds of users, including a disaster recovery mirror of Subversion at a remote location.* System administrator for Atlassian Fisheye and Crucible, tools to gain further insight into Subversion repositories and to perform code reviews on their contents.* System administrator for Apache Archiva, a maven artifact repository system which held the resulting artifacts of all software builds and their dependencies.* System administrator for multiple instances of build automation systems including Jenkins, Hudson, and Quickbuild.

Westerville, Ohio

* As the subject matter expert for Extraction, Transformation, and Loading (ETL) processes, worked with clients to create automated data retrieval processes including parsing, manipulating, and loading data into Oracle tables using Perl and related XML parsing libraries, XSLT, and the Oracle SQL*Loader utility.* Developed data categorization/discovery processes utilizing Inxight SmartDiscovery Analysis Server along with automated Perl scripts and Oracle SQL queries in a Solaris Unix environment.* Supported existing e-commerce websites including development and maintenance of Perl, SQL, HTML, CSS, and JavaScript functionality, as well as creation of new websites from a base company template.

Upper Arlington, Ohio

* Converted an HP-Unix ftp file retrieval system from Perl to Java. This was part of a larger project to rewrite an entire metrics collection/reporting system to improve performance and maintainability. The new Java-basedd system utilized multithreaded capabilities and Sybase table-based configuration to asynchronously poll and retrieve files from hundreds of various servers.* Supported DSL broadband systems, maintaining Perl, TCL, and Korn shell scripts, Sybase SQL, and C code on HP and Sun Unix machines. Through dozens of bug fix/maintenance projects of a span of multiple years, touched many different aspects of the DSL ordering/fulfillment system and became adept at quickly learning and modifying new subsystems using various languages and technologies.* Created product-specific reporting systems in Perl and SQL for use on Sun and HP Unix machiens. These projects typically stemmed from a specific business unit's needs and involved Sybase stored procedures for retrieving data and Perl scripts to manipulate the data and product text-based reports which were then automatically emailed to users.* Supported Windows NT portion of legacy signup system, maintaining C/C++ code.Participated in a year-long migration project from a legacy Fortran-based billing system to a new C/C++, Perl, and SQL system, with a focus on test automation.

Shreveport, Louisiana

* Developed stand-alone applications in C/C++ for monthly publication, as well as creating updated versions of existing applications for re-publication.* As a member of the Quality Assurance team, tested software applications across many platforms (Windows, DOS, Mac, Apple II, and others) and provided bug/enhancement reports back to development.