Professional Profile
Calvin is an IT Specialist on IAM, Middleware/Web and Unix/Windows administration. He has over 15 years of experience supporting various applications as an Administrator.
Employer History
Sept 2012 – May 2017 (Contractor) IBM Global Services
WebSphere Support Engineer, Data Warehouse and IAM Specialist
Installed and configured WebSphere Network Deployment and Application Server on test, stage and production
Deployed J2EE applications in clusters.
Tuned J2EE applications. Setup traces and capture dumps for analysis
Modified XML/HTML contents. Executed Jacl to update Webs applications
Managed WebSphere Security, SSL certificates.
Performed root cause analysis to quickly recover service interruptions and to prevent recurring problems.
Created documentation for testing, staging and production environments
Assisted/coordinated with OS and DB2 teams in troubleshooting applications related issues
Created SQL queries to collect, review and provide data to audit team to support compliance requirements
Implemented strategies for data warehouse additions and enhancements
Supported IBM Tivoli Identity Manager application for 600K users on over 6K systems (AIX, Linux, Windows, Active Directory, HMC, VIOS), for automated management of userids (UID), GID (Groups) and access permissions, leveraging IAM
Researched and debugged user identity and access issues. Used LDAP and DB2 queries to automate queries and collect information on Data Warehouse and ITIM Servers
Performed primary and secondary control, SOD (Separation of Duty), OOP (Out of Process Procedure), CBN (Continued Business Need), protect and unprotected ID, QEV(Quarterly Employee Validation), PR (Privilege Re-validation), PAR (Privilege Account Review)
Managed users using web-based applications including ITIM (IBM Tivoli Identity Manager), IBM Identity Cloud initiatives (GSA Id/file storge, cloud), DAAT (Data Access Administration Tool), UATool (User Access Tool)
Managed ETL process
Developed backup and restore strategies for Data Warehouse
Wrote shell scripts to automate tasks
Hardware: AIX 570, Mainframe s/390
Software: DB2, WebSphere Application Server, LDAP, HTTPServer, Linux, Tivoli Directory Integrator, Microsoft Office, LibreOffice
May 2012 – August 2012 (Contractor) Kaiser Permanente
WebSphere Support Engineer for Web Presence Portal (WPP)
Deployed J2EE applications in clusters.
Tuned J2EE applications. Setup traces and capture dumps for analysis
Managed WebSphere Security, SSL certificates.
Performed root cause analysis to quickly recover service interruptions and to prevent recurring problems.
Created documentation for testing, staging and production environments
On call support 24x7
Familiar with Remedy ticket system
Hardware: Sun Solaris, AIX
Software: WebSphere Network deployment & Application Server/Portal, ORACLE, Remedy
HTTPServer, LDAP, Sun Solaris, Linux, AIX, XML, HTML, LDAP, Bamboo
October 1997 – March 2012 IBM Global Services
AIX/Linux Administration
Performed installation (CD/DVD or NIM), migration, operation, planning and configuration of AIX/Linux on 90 RS/6000 and pSeries servers. Installed files, fileset, bundle, PTF and e-fix
Added/replaced and configured hardware. This was done by self or with IBM CE (Customer Engineer)
Installed software
Managed logical volume groups, file systems and paging space
Created mksysb (rootvg) for backup, recovery and clones
Setup and troubleshot Ethernet/Token-Ring network connectivity
Performed Installation, migration and configuration of Tivoli Storage Manager clients for systems backup/recovery. Knowledge of TSM functionality
Installed and configured AIX security using DCE DFS / PAM
Root Cause Analysis and in depth knowledge of troubleshooting of OS related issues
Monitored system performance and tuned operating system
Setup and maintained UID/GID. Setup security policies for users
Knowledge of HACMP cluster
Wrote shell scripts to manage AIX environment
Created backup and restore policy
WebSphere Integration and Administration
Performed installation, migration, operation, planning and configuration of highly complex WebSphere Network Deployment, WebSphere Application Server, WebSphere Portal and WebSphere Network Dispatcher
Deployed J2EE applications in clusters. Create JDBC to connect to DB2 backend.
Managed WebSphere Security, SSL certificates.
Modified XML/HTML contents. Executed Jacl/Jython to update Webs applications
Strong WebSphere applications troubleshooting. Performed root cause analysis to quickly recover service interruptions and to prevent recurring problems.
Tuned J2EE applications. Setup traces and capture dumps for analysis.
Designed and developed documentations for the team to use
Trained/mentored team members. Provide technical guidance/assistance to team and development team
Provided 7/24 support
DB2 DBA Administration
Performed installation, migration, upgrade and configuration of DB2 UDA servers and clients.
Created, configured and maintained system, instances and databases
Configured and managed database user IDs and group permissions
Configured and maintained schema, table spaces, tables, buffer pools and logs
Configured and managed database backup and recovery
Wrote SQL queries to manipulate data
Cloned databases
Performed tuning instances and databases configurations. Strong analytical and troubleshooting.
Experience with TSRM (Tivoli Service Request Manager) ticket system
Hardware: IBM RS/6000, pSeries 550/630, IBM Mainframes, PCs
Software : WebSphere Network deployment & Application Server, DB2, Domino, Lotus Notes, LEI,
MQSeries, Tivoli Storage Manager, HTTPServer, WebSphere Caching Proxy, DCE DFS,
LDAP, AIX, Windows, Linux, Microsoft Office Suite
Education and Background
Bachelors of Science in Computer Information System from Cal Poly University of Pomona
IBM Certifications
IBM Certified WebSphere Application Network Deployment
IBM Certified MQSeries Administration
IBM Certified Solution Expert DB2 UDB Administration for Unix & Windows
IBM Certified AIX System Administration
Microsoft Certification
Microsoft Certified System Engineer (MCSE)