Dominique - Administrateur système AIX

Employer : Econocom, Zaventem (Belgium)
Position Held : AIX/TSM/SAN Administrator
Period of Service : August 2011 – now
Function :
I am responsible for the daily management of the AIX servers, the IBM TS3500 library and the IBM DS8800 System Storage.
Assignments :
• Provides overall support and maintenance of operating systems and network connectivity for all AIX systems.
• Monitors system performance on a daily basis to ensure adequate response times for production applications.
• Establishes and documents procedures to ensure data integrity including system fail-over and backup/recovery.
• Provides reliable backup services. Conducts routine hardware and software audits of AIX servers for compliance with established standards, policies, configuration guidelines, and procedures.
• Provides recommendations to management on changes, upgrades, and new hardware as required.
• Provides support to vendors and application programmers as necessary.
• Maintains current operating systems, levels, and patch versions that comply with vendor requirements.
• Coordinates hardware repairs with appropriate vendors on supported platforms as necessary.
• Performs research and development on new products, technologies, and operating systems as required.
• Notifies appropriate contact and works with technician to resolve any hardware issues.
• Monitors tape utilization.
• Works with appropriate contact to resolve any issues related to backups.
• Troubleshoots any connectivity issues.
• Monitors port usage.
• Resolves issues with Host Bus Adapters on SAN attached clients.
• Configures LUN sizing and LUN security.
• Determines space remaining in storage subsystem.
• Monitors space utilization.
• Ensures offsite tape cartridges are sent offsite.
• Upgrades TSM server and clients to the latest version.
Technical environment : DS8800, DS4200, DS3400, Switches Brocade, AIX 6.1, SVC nodes, TS3500, TSM 6.2.3 …

Employer : Credoc, Brussels (Belgium)
Position Held : Linux Systems Engineer
Period of Service : July 2011 – August 2011
Function :
I am responsible for the daily management of multiple servers running SUSE Linux Enterprise.
Assignments :
• Implement security rules for servers, applications and data ;
• Develop methods for the monitoring and alerting and proactively resolve errors ;
• On call duty to ensure continuity after hours of work and during the weekend ;
• Audit and implement the automation of recurring tasks ;
• Make proposals to improve the environment, servers, procedures and guidelines ;
• Implement changes to the environments for the constant improvement of service ;
• Implement and control the back-ups ;
• Provide a third line support ;
• Follow up of incidents ;
• Ensure the reliability, availability and performance of the infrastructure.

Technical environment : SUSE Linux Enterprise Server, Apache Webservers, Java Application Servers, Scripting (bash, php), DNS, HTTP, SSL, JMS, SMTP, POP3, IMAP, syslog, VMWare, SAN technology, TCP/IP Networking, Access Management & LDAP, Enterprise Loadbalancing (F5), Queuing technology (Active MQ), PKI, …

Employer : People and Technology, Brussels (Belgium)
Position Held : AIX Administrator
Period of Service : February 2011 – April 2011
Customer : Sonaca
Function :
I am responsible for the daily management of multiple servers and workstations running AIX and Linux.
Assignments :
• Installations, upgrades;
• Daily monitoring, tuning, optimization and capacity planning;
• Security and integrity, backup, restore, and recovery of databases;
• Support and advice to the responsible of the applications;
• Documenting existing installations;
• Responsible for the daily management of Oracle databases (10g - 11g)

Technical environment : The environment involves different technologies which, among other clusters, virtualization and SAN architecture. These servers house design software and aided manufacturing computer running Enovia VPM, Portal and SAP as well as Tivoli Storage Manager and multiple Oracle databases.

Employer : Devoteam, Brussels (Belgium)
Position Held : User Administrator
Period of Service : Sept. 2010 – January 2011
Customer : Tessenderlo
Function :
I were responsible for internal Active Directory, Exchange email accounts for the Tessenderlo group.
Assignments :
• Creation, transfer and deletion of accounts for end users
• Grant user access to shared folders on the network
• Troubleshoot end user account related problems (investigate user problems, identify their source, determine possible solutions, test and implement solutions)
• Maintain paperwork for user additions, deletes, moves, and changes
• Conduct periodic reviews of applications for terminated or inactive user accounts
• Create request forms and procedure documentation for applications
• Batch robots and servers restart and maintenance
• Handle ad hoc user account related projects
Technical environment : Windows Server, Active directory, Homemade tools, ...

Employer : Devoteam, Brussels (Belgium)
Position Held : Unix operator
Period of Service : October 2008 - May 2010
Customer : Mobistar
Function :
The team has the responsibility for defining global standards & guidelines, 3rd level support, involvement in projects, … We were focusing on common services related to the Unix platform.
Assignments :
• Managing 8 tests systems, applying patches and doing the tests
• Validating the installation guides
• Application integration : reception, verification and put in production of deliveries
• Change request managing
• Documentation
• Working outside the business hours if required by the business
Technical environment : Solaris 9, Oracle

Employer : TotalPetrochemicals, Feluy (Belgium):
Position Held : Unix operator
Period of Service : November 2001 – April 2008
Function : Engineer UNIX & linux operations & applications operations
Assignments :
• Monitoring of the servers, applications (SAP, Oracle, Websphere, ...), jobs and flows
• Documentation (writing some procedures for the internal team)
• Training and meeting participation
• Backups managing (following the business rules)
• Day to day check for the business
• Second line support
• Change request managing
• Identifying and solving common problems (90%), escalating the other 10% to the 3rd support level
• Operations on AIX, HPUX and linux environnements (ex. Copying a SAP environment on another one)
• Risk & Security Management (DRP - Disaster Recovery Planning)
• On call duty (following the sun), working during the week-end if required by the business
• Shell scripting
• Managing more than 200 Unix servers (essentially AIX) and participating at the migration of the servers on an IBM P1
• Scheduling tasks (daily script, backups, ...) by using the crontab at the beginning and $Universe at the end

Technical environment :
• AIX 4.3.3 and AIX 5 base and file server
• Unix networks, TCP/IP
• HACMP 4.3 and 4.4
• TIVOLI framework
• TIVOLI Storage Manager 3.7 or 4.1 - TOP /R3
• SAP R/3 : releases 3.0F up to 4.60
• Oracle 8.0.6 up to 9i
• $Universe scheduler

Employer : Grucoelsa s.l., Zaragoza (Spain)
Position Held : Developer
Period of Service : August 1999 – September 2001
Function : Preparing the company to face the year 2000
Assignments : Programming Cobol and RPG 4 in a team spirit environment
Technical environment : AS400

Employer : University College of Dublin, Dublin (Ireland)
Position Held : Computing assistant
Period of Service : November 1998 – June 1999
Function :
I was involved in a young and motivated team. Our mission was to help the students in their day to day work in the computer rooms on the campus.
Assignments :
• Dealing with the common network problems
• Solving printing problems
• Helping the students in their day to day tasks
• Each team member was responsible of his own computer room
Technical environment :
• Largest Novell NetWare network in Ireland
• Apple

Employer : Université de Montréal, Montréal (Canada)
Position Held : Assistant in the laboratory of robotics
Period of Service : July 1998 – September 1998
Function :
During 2 months (project scholarship), I was responsible for the development of the website of the laboratory of robotics.
Assignments :
• To meet that target I used PHP and HTML languages
• Helping the laboratory of robotics manager and his assistant