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Ricardo Duesbury

@ricardoduesbury

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Linux systems administrator at Fujitsu, maintaining Solaris infrastructure and building Nagios monitoring.

Belize

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At Fujitsu, I worked as a Technical Authority/Infrastructure Leader, maintaining live and pre-production environments running Solaris and WebLogic. I also created a Nagios monitoring solution for the pre-production environment.

At Research In Motion, I maintained enterprise infrastructure running RHEL and SUSE, built servers, and supported software upgrades and patches. I built and configured a Cacti server to monitor servers and services.

At Cable and Wireless, I coordinated the migration of 50 servers to one datacenter and supported UNIX server environments. My background also includes Linux and Unix administration, shell scripting, and infrastructure support.

Experience

Work history, roles, and key accomplishments

Lead Developer SME

Fujitsu

Jun 2022 - Dec 2022 (6 months)

Continued in a contractor role after Capgemini contract was bought out by Fujitsu, serving as Lead Developer SME for HMRC.

Technical Authority/Infrastructure Leader

Capgemini

Feb 2013 - Dec 2022 (9 years 10 months)

Maintained live and pre-production environments running Solaris and WebLogic, provided 3rd/4th line support, and created monitoring solutions using Nagios.

Solaris Web Logic Apache Import Export Nagios Confluence DokuWiki Shell Scripting DevOps HPeD Windows Server

PRV Service Engineering Specialist

Research In Motion

Sep 2006 - Jan 2013 (6 years 4 months)

Maintained enterprise infrastructure running RHEL, SUSE, and proprietary RIM applications on WebLogic, performed software upgrades, and built servers using VMware.

RHEL SUSE Web Logic Apache PHP SQL Shell Perl Cacti VMWare Oracle DNS

Hosting Operation Platform Manager (UNIX)

Cable and Wireless

Nov 2002 - Sep 2005 (2 years 10 months)

Managed migration of 50 servers to a single datacenter, supported UNIX server farm, and coordinated a team of system administrators.

Solaris Unix Sun Microsystems Performance Management KPIs

IP Applications Team Leader (UNIX & MS)

Cable and Wireless

Aug 2001 - Nov 2002 (1 year 3 months)

Monitored critical Solaris, MS, and Linux servers, resolved faults within SLA, and provided on-call support for priority customer issues.

Solaris Linux Windows Netcool Apache Mail News SQL FTP SMTP SSH VPN MS Terminal Services

Internet Systems Engineer (MS)

Cable and Wireless

May 2000 - Aug 2001 (1 year 3 months)

Supported MS servers based on MCIS and IIS technology, including web, mail, FTP, and backend SQL and LDAP servers.

MCIS IIS SQL 2000 LDAP Web Mail FTP

Support Engineer

Murphy Modex

Jan 2000 - May 2000 (4 months)

Tested microprocessor controlled switches to ensure they met design specifications and troubleshot faulty controllers.

Microprocessor Testing Troubleshooting

Senior Systems Engineer

Engino Electronics

Sep 1999 - Jan 2000 (4 months)

Served as Senior Systems Engineer at Engino Electronics.

Electronic Engineer

Belize Defense Force

Apr 1987 - Sep 1999 (12 years 5 months)

Served as Electronic Engineer in the Belize Defense Force.

Education

Degrees, certifications, and relevant coursework

Oracle

SQL Tuning Workshop, Database

2012 - 2012

Completed SQL Tuning Workshop course.

Red Hat

Red Hat RH300, Linux Administration

2011 - 2011

Completed Red Hat RH300 course.

VMware

VMware vSphere: Install, Configure, Manage, Virtualization

2011 - 2011

Completed VMware vSphere: Install, Configure, Manage and Troubleshooting courses.

Cable and Wireless College

ITIL Foundation Course, Information Technology

2000 - 2005

Completed various technical courses including IP Networks Basics, TCP/IP Networking, ITIL Foundation, and Veritas Cluster Servers for Solaris.

Learning Tree

Management Skills for Professionals, Information Technology

2001 - 2003

Completed multiple professional development courses in management, influencing skills, Unix/Linux optimization, SQL Server, ASP, TCP/IP, Visual Basics, and Perl scripting.

CQMS Course

CQMS Course, Quality Management

1999 - 1999

Completed CQMS Course.

Force Accounts Cadre

Force Accounts Cadre, Accounting

1998 - 1998

Completed Force Accounts Cadre training.

Ministry of Defense 8th Signal Regiment-UK

BTEC National Diploma in Engineering, Engineering

1990 - 1994

Completed BTEC National Diploma in Engineering, with coursework in Engineering Applications of Computers, Data Communications, and Telecommunication Technician.