Sean Hawkins
Principle Application Engineer
Germantown,MD
Summary
A self-starting IT professional with 20+ years of experience and growth in the same organization (ownership changed hands) with so much more to learn. I have the talent, drive, and flexibility to grow with any organization, as evidenced by the breadth of my experience and my pursuit of additional education. A respectful self-motivator gifted at finding reliable solutions for software issues. Experienced in Ansible automation and various scripting languages. Accustomed to working with cross-cultural, global teams across different time zones.
Overview
31
31
years of professional experience
8
8
years of post-secondary education
Work History
Principle Application Engineer
GXS/OpenText
07.2015 - 05.2025
- Trusted to work fully remotely.
- Disaster recovery and business continuity process design and testing.
- Designed, wrote, implemented, and maintained an Ansible-based method of synching data across primary and backup data centers with configuration modification; migration from a previous BladeLogic-based model (also partially designed, wrote, and implemented).
- Perl, Python, and various shell script creation and maintenance in support of disaster recovery and business continuity; improvement in automation, monitoring, error reporting, connectivity between hosts, starting/stopping application stacks in sequence, database record updates per datacenter, configuration string updates per datacenter; reduction in implementation time.
- TLS/SSL certificate management for various third-party (SAP), F5, and company proprietary services; openSSL; Entrust; Verisign; Comodo
- Migrated certificates from SHA1 to SHA256 algorithms for customers (Citigroup, Discover) per SANS requirements.
- Participation in various security flaw remediation activities.
Senior Application Engineer
GXS
08.2011 - 06.2015
- Trusted to work fully remotely from 2013.
- Disaster recovery and business continuity process design and testing.
- Designed, wrote, and implemented a new BladeLogic-based method of synching data across primary and backup data centers
- Perl and various Shell script creation and maintenance in support of disaster recovery and business continuity.
- BladeLogic disaster recovery related code allows double the number of servers with little additional daily manual activities from personnel.
- TLS/SSL certificate management for various third-party (SAP), F5, and company proprietary services; openSSL; Entrust; Verisign
- SAP Netweaver support and certificate management.
Application Engineer
Global Exchange Services/GXS
01.2004 - 07.2011
- System administrator (in all but title).
- Responsible for the production environment configuration for various third-party and proprietary application on Linux, HP-Unix, and Solaris Unix.
- Configuration of monitoring (HP OpenView, Sitescope, Siteseer).
- Created various Shell scripts to monitor and report on various aspects of the operational environment; automation of tasks for communication with customers and trading partners.
- Traveled to customer sites for support during emergencies; pre-sales demonstrations.
- Sendmail configuration, troubleshooting, and tracking.
- F5 BigIP load balancer configuration; Apache WebServer, Netscape web servers.
- Trusted with high profile customers such as Citigroup, Discover, General Motors, and more.
- WebLogic, webMethods, Apache Tomcat; various Java-based third party software packages.
- Legato File System Service.
- Documented and trained co-workers in various processes and procedures.
- X.509 certificate management.
- Various disaster recovery exercises (older process).
- On-call, weekend, weeknight support; 24/7 work.
- Solved problems.
Electronic Commerce Service Center Systems Integrator
General Electric Global Exchange Services
01.2002 - 01.2004
- Worked remotely from a New York based team.
- X12/EDIFACT mapping in our Application Integrator software and specification building based on customer requirements.
- Disaster recovery and business continuity testing.
Telecom Support Engineer - exchangeLink
General Electric Information Services
07.2000 - 01.2002
- Designed a search tool interface, written in Korn shell, used by Telcordia support to search for document status.
- Primary support engineer for the account; on-call, weekend support.
- Designed or improved data flow between trading partners as needed via configuration of software and prioritization or traffic.
Mapper/Systems Integrator
General Electric Information Services
01.1999 - 06.2000
- Built X12 and Edifact maps in our Application Integrator software for customers.
- Worked on-site with various corporate customers (AT&T and others) for a year as a systems integrator and general support.
Enterprise and Application Integrator Support Technician
General Electric Information Services
12.1997 - 01.1999
- Technical support for Application Integrator.
- Instructed clients on advanced map building via telephone and email. Very difficult work depending upon the knowledge level of the customer.
Technical Support
General Electric Information Services
04.1995 - 11.1997
- Support for our X12/EDIFACT EDI based business.
Customer Implementation/p
General Electric Information Services - Contractor
08.1994 - 03.1995
- Ramped clients onto our MVS-based EDI platform.
Education
Master of Science - Computer Science
University of Illinois At Urbana-Champaign
Champaign, IL 08.2018 - 05.2021
Bachelor of Science - Computer Science
University of Maryland University College
Rockville, MD 01.2014 - 12.2016
Some College (No Degree) - Undeclared
Howard University
Washington, DC 08.1989 - 05.1992
Skills
Red Hat Linux
Shell Scripting (Bash, Korn)
Perl Scripting
Disaster Recovery and Business Continuity
Ansible Server Automation
BladeLogic Server Automation
Python
Java
Apache Tomcat, Apache Web Server, WebLogic, webMethods Integration Server
TLS/SSL X509 Certificates
F5 BIG-IP/Load Balancers
Requirements analysis
Change management
Cross-functional collaboration
Production support
Version control systems (Git)
DevOps
Cross-functional teamwork
JIRA
Team collaboration
Amazon Web Services
Docker
Kubernetes
CI/CD Awareness
Timeline
Master of Science - Computer Science
University of Illinois At Urbana-Champaign
08.2018 - 05.2021
Principle Application Engineer
GXS/OpenText
07.2015 - 05.2025
Bachelor of Science - Computer Science
University of Maryland University College
01.2014 - 12.2016
Senior Application Engineer
GXS
08.2011 - 06.2015
Application Engineer
Global Exchange Services/GXS
01.2004 - 07.2011
Electronic Commerce Service Center Systems Integrator
General Electric Global Exchange Services
01.2002 - 01.2004
Telecom Support Engineer - exchangeLink
General Electric Information Services
07.2000 - 01.2002
Mapper/Systems Integrator
General Electric Information Services
01.1999 - 06.2000
Enterprise and Application Integrator Support Technician
General Electric Information Services
12.1997 - 01.1999
Technical Support
General Electric Information Services
04.1995 - 11.1997
Customer Implementation/p
General Electric Information Services - Contractor
08.1994 - 03.1995
Some College (No Degree) - Undeclared
Howard University
08.1989 - 05.1992
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