Thomas Paul

1-845-***-****

***** *** **** ****

West Palm Beach, FL 33412

Email: adzmro@r.postjobfree.com

OBJECTIVE

To obtain a Advanced Linux System Administrator position

Summary:

Over 14 years of strong experience as Unix-Linux Systems Engineer/Administrator and production support of various applications on Red Hat, Ubuntu, CentOS and Suze Linux distributions and Windows environment.

Experience on implementation, administration, installation, upgrade and maintenance of RHEL 4/5/6/7 and 8 Releases, Suse 7/8/9/10 & 11.

Integration of various network related service like NFS, NDS, FTP/SFTP, NAS and web servers

Configured kickstart servers for complete hands-free installation of systems with custom profiles, begin/finish scripts and custom package suites/clusters

Troubleshooting skills with network protocols such as DNS, DHCP, TCP/IP, SMTP & SNMP

Hands on experience with ticketing tools such as Remedy, Service Now & Sales Force

Extensive implementation and troubleshooting experience under client server systems

Strong technical background in storage, disk management, Logical Volume Management (LVM) and logical partitioning

Management of user accounts, system security, change management and performance tuning

Installation of SSL certificates for Linux servers

Monitoring and administering of Linux servers

Installation of patches, H/W & /S and firmware upgrades

Provided on-call support and worked with vendors on systems issues and bugs for its resolution

SKILLS:

Linux distributions RedHat, Ubuntu, CentOS and Suze, Windows & z/VM & Linux on System Z.

Networking Skills: LAN/WAN, DNS, DHCP, FTP/SFTP, SSH IP addressing, switching & routing Layer 2 & Layer 3 (TCP/IP).

EXPERIENCE:

United Health Care Group March 2021- May 2023

Installing,configuring and maintain the Linux based servers (RHEL 6, 7 & 8, Ubuntu)

Function as a subject matter expert on infrastructure projects pertaining to Linux based systems, storage and virtualization.

Manage LVM tasks like Volume group creation, File system creation/extension and logical volumes.

File,user,access and user account management(mounting/file transfer /memory allocation).

Implemented Dynamic and automatic CPU allocation

Implemented dynamic memory allocation

Back up and restoration management.

Disaster Recovery planning and testing.

BNY Mellon March 2018- April 2021

Developed structured cloning process so that Linux guests can be generated in minutes.

Upgraded all Linux servers to supported level RHEL 7.9 from RHEL 6.x

Configure network bonding, password policy and log management to centralized log collection.

Installation, up gradation, maintenance, Patch/Package management and keeping update with security threat vulnerabilities and remediation.

Supported Linux servers to meet SLA agreements with clients by relocating Linux guests to appropriate node so that customers do not experience outage.

Designed and developed faster Disaster Recovery and Fail Over and Stay processes for and Linux servers.

Designed and implemented high availability, fail-over and resilient Linux infrastructure.

Hardware and software maintenance and coordinating vendors like Redhat, Oracle and IBM.

Implemented RedHat Satellite configuration for all Linux servers.

Oracle Corporation, Redwood Shores, CA (Remote) July 2015-March 2018

Designed and developed two 4 node SSI z/VM 6.4 (z13 & EC12) and one 3 node SSI 6.3 cluster (EC12) hosting 700+ Linux servers (RHEL &SLES various versions), standalone Linux RHEL 5.8 (native on LPAR).

Implemented LACP on 10G network connection to LAN.

Redundant vswitch configurations for Linux inter-connections using private lan (Guest Lan) for cluster traffic.

Implemented fast, reliable cloning methodology for RHEL & SUSE using flashcopy

Problem solving and change management for all z/VM and z/Linux.

Planned and upgraded multiple cpus (z9 to z13 and z10 to EC 12).

Planned and Implemented XIV storage unit for FCP (SAN) usage for Linux & z/VM

Planned and migrated D6100, DS8100 to DS8884 storage units.

Interactive Data Corporation, Bedford, MA August 2011-Jan. 2015

Designed and developed Extreme Cloud Computing (xCAT) in z/VM for z/Linux cloning to reduce administrative costs and have the ability to provide on-demand service..

Installed z/VM 6.3 and migrated z/Linux guests (RHEL 5.7) from z/VM 6.2.

Planned and migrated z/Linux (RHEL 5.7) guests from z/VM 5.4 to z/VM 6.2

Upgraded Velocity Performance software from 3.7 to 4.1 multiple lpars.

Installed, maintained, customized z/VM 6.2 developed cloning technologies, trouble shooting and problem analysis.

Installed Red Hat 5.7 and 6.2 and developed cloud computing for cloning Linux guests.

Lead the Proof of Concept of z/Linux Virtualization under z/VM. The project included was designed on z/VM 5.4 with 4 IFLS and 96G memory on a z/10 based on RACE analysis. The applications included Oracle and Java.

Prepared presentations for senior management on cost savings for having Linux on System Z.

Installed two cluster z/VM 6.2 SSI (Single System Image) with Live Guest Relocation (LGR) of z/Linux Red Hat 5.4 and 6.2 under 2nd level z/VM 5.4.

Successfully Implemented SAN (FCP) storage for z/Linux and z/VM of CISCO 9509 SAN switch and Hitachi VSP storage arrays.

Implemented Dynamic memory and CPU allocations for Linux Guests without a boot.

Supported High Availability, Disaster Recovery and Capacity Planning for z/VM & z/Linux infrastructure.

Worked with various vendors on equipment procurement details, support and problem solving of multi-vendor environment.

Lockheed Martin, Baltimore, MD March 2010-May 2011

Implemented password encryption using RACF and SSL integration.

Planned, installed and upgraded z/VM 5.3 to z/VM 5.4 for 4 LPARS on the same day as upgrade of z/9 to z/10 Enterprise Class Server from IBM. The infrastructure environment consists of z/Linux Red Hat 4.6, 5.2 and Suse 11 without any problems for the z/VM environment. Along with z/OS 11.1 Lpars. The software inventory includes RACF, DIRMAINT, RSCS, TCP/IP, Operations Manager, Velocity & Performance Tool Kit. The migration was complicated by having access to no tape drives and the DASDs to be used for not available on z/9 Machine and no testing can be done.

Planned and upgraded z/VM 5.4 Systems from RSU 1001 to 1002 and to 1003.

Planned, implemented and documented Disaster Recovery Testing for z/VM and z/Linux environment at Sungurd site in NJ.

IBM Global Services

Senior IT Enterprise Architect in Global Technology Services, Integrated Communication Services Practice, Advanced Network Solutions Competency.

Senior Project Manager for world’s largest power and Utilities Company managing Wide Area Network Connectivity and compliance with industry standards.

Infrastructure Assessment of various corporations and government organizations to provide current state of affairs, point out deficiencies, how to militate them, recommend best practice and provide solutions or design infrastructure as needed.

Network Architecture, Planning, Design, Implementation & Support of Enterprise Infrastructure & networks – GDPS, Metro Mirror and PPRC. GDPS IBM mainframe z/VM & z/Linux planning, bandwidth analysis and implementation for a multi-national company.

Consultant for z/VM z/Linux leads assists in delivery of high quality zSeries solutions in response to specific business requirements. Provided analytical support necessary to develop and implement solutions for small to medium size projects or components/elements of larger projects.

Supported z/VM and z/Linux environment for a Law Enforcement agency in New York major accomplishments are planning, design and implementation of z/VM System and subsystems. This system was tested using z/Linux Servers and put on production which involved Z series machines on multiple LPARS using OSA Express, VSWITCH and Hiper-sockets.

Performed infrastructure assessment and design solutions for an Engineering company in Wyoming. The project involved, assessment of current infrastructure provide recommendations and develop designs based on the recommendations. Client was implementing solution which included VoIP, WAN, LAN, Enterprise Infrastructure.

Enterprise infrastructure design and/or review and recommend corporate customer networks using IBM Mainframes (VM/ESA), Windows NT servers, workstations, SUN/OS (Solaris), HP (HP/UX), Apple (MAC/OS) and communication servers.

EDUCATION

MS in Applied Mathematics & Statistics, State University of New York at Stony Brook, NY

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