Tyrone E. Seldon

Philadelphia, PA 215-***-**** ad07w8@r.postjobfree.com linkedin.com/in/tyroneseldon

SENIOR SYSTEM ADMINISTRATOR

Extensive experience architecting systems for processing and managing large-scale healthcare "Big Data." Exceptional Information Technology achievements showcasing expertise in LINUX / UNIX and Windows System Administration. Proficiently resolve complex issues within Local and Wide Area Networks across heterogeneous landscapes while optimizing systems performance. Adept in relational database management systems, including Oracle, SQL, and Red Shift. Certified in HP Security and Troubleshooting, HP-UX Operating Systems 11.i, and Brocade SAN switches, with a commitment to technical excellence and security. Utilize Cyber Security Practices to ensure proactive management of cyber security risks, including enforcing principles of least privilege, implementing multi-factor authentication, conducting regular vulnerability assessments, and designing incident response procedures. Able to support a virtual / remote / hybrid working environment.

TECHNICAL COMPETENCIES

Hardware: HADOOP Clusters Custom ML (NVIDIA) Rig VMware Windows Servers HP IBM Dell DEC/VAX SUN/SPARC RS6000

Data Centers: Dallas Cyxtera TierPoint – Lenexa TierPoint – Valley Forge

Cloud: Amazon Web Services (AWS) IAM VPC EC2 EFS EMR S3 SES

SQS Lambda RDS Redshift Athena Sage Maker Code Deploy Event Bridge Guard Duty Trusted Advisor CloudWatch CloudTrail Cost Explorer

Software Operating Systems: Red Hat Linux CentOS Linux AWS Linux SUSE Linux UNIX System V HP-UX Solaris AIX Linux SUSE VMware DOS System 7 IBM TMS IBM TWS MVS Database

Management Systems: Cloudera/Hadoop Informix Oracle WebLogic MySQL Apache Tomcat Cassandra

Automation: Ansible Puppet

Scripting: UNIX shell BASH Perl Ruby

Programming Languages: C++ C

Monitoring Tools: Nagios Spunk SolarWinds

Cyber Security Tools: MVision and SkyHigh

PROFESSIONAL EXPERIENCE

SYMPHONY HEALTH (ICON plc Company), Blue Bell, PA June 2016 – August 2023

Senior System Administrator-Remote

Proficient in Linux administration building and managing hardware infrastructure for healthcare data analytics platform. Supported Cloudera (CDP) Hadoop development on 12 servers and three production clusters comprising of 150 servers. Managed environment security, conducted vulnerability assessments, and implemented upgrades and patching for Linux systems.

Negotiated maintenance contracts, ensuring optimal hardware and software performance for Linux-based infrastructure.

Led a team of AWS professionals supporting cloud applications and data deliveries, leveraging Linux-based solutions.

Handled and resolved 150+ service monthly requests, consistently meeting or exceeding SLAs, to deliver new products and data to clients.

Held Vulnerability Management Analyst role proactively enhancing company’s security posture by conducting comprehensive vulnerability assessments using CrowdStrike, Qualys, MVision, Skyhigh, and Trusted Advisor. Identified and prioritized security weaknesses, reducing potential attack vectors while enhancing overall system integrity.

Tyrone E. Seldon 215-***-**** ad07w8@r.postjobfree.com Page 2

COMCAST CABLE, Philadelphia, PA June 2014 - Sept 2015

System Engineer (2014-2015)

Deployed applications on RHEL servers within a virtualization environment. Configured custom application layers, including iControl and home stream, and load balancer configurations. Automated systems using Ansible software and performed monitoring tasks with Splunk and Nagios software. Configured supporting application layers (WebLogic, Tomcat, Apache, and Java) to support custom application layer.

DNS & System Engineer (2014)

Provided support with DHCP administration, DNS troubleshooting and administration, TFTP, NTP, ARP, SNMP, and DOCSIS. Prepared UNIX shell scripts and supported Red Hat Linux administration. Performed IP scope reclaims and followed Outage Management and Escalation Procedures.

THOMSON REUTERS, Philadelphia, PA March 2013 - May 2013

UNIX / LINUX Application Support Engineer

Installed Linux operating system software in a virtualization environment. Supported web applications for Web of Knowledge, Endnotes, Researcher ID, and Incites. Collaborated with application performance testing and monitoring team to build and enhance monitoring tools. Supported web applications using Tomcat, Apache, Perl, and Java.

SUNGUARD, Philadelphia, PA Nov 2012 - Jan 2013

Senior UNIX / LINUX System Administrator

Provided technical support for clients requiring disaster recovery (DR) services on UNIX / Linux.

AEHN, Philadelphia, PA Oct 2011 - Sep 2012

Senior Server Engineer

Maintained, monitored, and handled troubleshooting servers, including AIX, Red Hat Linux, OPENVMS, AS400, and Tandem. Developed and maintained installation, configuration, and security procedures.

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SUNGUARD, Philadelphia, PA Oct 2009 – Sep 2011

UNIX / LINUX System Administrator

Provided technical support for clients requiring disaster recovery (DR) services.

PHILADELPHIA GAS WORKS, Philadelphia, PA June 2008 - Sep 2009

Senior UNIX System Administrator

Configured and installed computer hardware and system software. Managed HPUX UNIX, Red Hat, and SUSE Linux servers. Handled troubleshooting and resolved problems and outages. Managed backup and recovery of servers and data. Maintained a Service Guard clustered environment on production servers.

VWR INTERNATIONAL, West Chester, PA Feb 2007 - April 2008

UNIX System Administrator

Red Hat Enterprise Linux, and Linux/VMware environments running relational databases.Monitored HP servers and Linux servers in a SAN environment. Performed system backups with IBM Tivoli Storage Manager.

LAW SCHOOL ADMISSION COUNCIL, Newtown, PA Jan 2000 - Oct 2006

UNIX System Administrator

Managed client / server environment. Monitored HP, Sun, and IBM servers and Windows servers in a SAN environment.

CERTIFICATIONS

HP Security and Troubleshooting HP-UX Operating Systems 11.i Brocade SAN switches

Community College of Philadelphia – Certificate in Computer Operations

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