Tim Rock
Aurora
Summary
Results-driven Network Engineer with 20 years of expertise deploying and maintaining LAN and WAN infrastructure. Dedicated technology professional with strong track record of accurately conducting system repairs and troubleshooting. Offering exemplary planning, project management and communication talents.
Overview
42
42
years of professional experience
1
1
Certification
Work History
Network Engineer
Railroad Retirement Bureau / Zion Consulting
06.2023 - 06.2024
- Worked with ASA 5555s and migrating to Firepower FPR/FTDs, which was done as part of 'end of life' deployments. This included setting up failover environments.
- Also configured BGP Autonomous Systems from private AZURE network into RRB infrastructure and also their EXPRESS Route network. This included allowing newly published Microsoft routes, which was maintained monthly.
- Tasks that were delegated were the building of a new 'out of the box' Catalyst 9300 switch stacks. Was responsible for IOS upgrades across network on Catalyst 3650, 3750, and 3850 switches. Also worked on Nexus 9000 dual core switches with multiple VDCs.
- ·Maintained the Cisco CVEs, network vulnerability reports, and recommended appropriate changes as necessary. to accommodate new vulnerabilities.
- Responsibilities included configuring monitoring tools, Solar Winds and Cisco DNAC, which entailed setting up SNMP sites and polling OIDs, for graphing and charting. This included calculations for desired values..
- Enhanced security by implementing firewalls, VPNs, and access control systems.
Network Engineer - Contract
Hyatt Corporation
12.2019 - 04.2023
- Analyzed and defined network requirements, optimization and support for projects. Supported the mobile key project as main network engineer. Responsible for VPN tunneling into hotel sites and overall success of server connectivity to corporate network
- Main equipment supported were Cisco ASA 5585 firewalls as well as Cisco Catalyst and Nexus switches. Was also responsible for supporting third party firewalls at site locations, which could include routers as well. Tools used were ASDM for Cisco support and troubleshooting, but main configuration done using CLI. Packet tracer and 'ping tcp' heavily used
- Packet capturing and netstat type troubleshooting on Windows platforms also came into play. Firewalls which were implemented included Fortigate, Sonicwall, Watchguard, VBAND, SOPHOS, and Meraki, just to name a few. Very heavy VPN oriented work, with typical data delivery through various mediums. VRFs supported in core switching
- Administered and prepared programs for IP addresses, developed network resources and trained support personnel to provide Tier 3 support to end users. Also supported many IT vendors in the field such as Velocity and Centrada
- Implemented necessary controls and procedures to protect information system assets from intentional or inadvertent modification, disclosure or destruction. Documented all tunnels created, as well as supporting procedures for future reference
Network Engineer
ADP Corp
04.2013 - 05.2019
- Supporting ADP worldwide operations and primary engineer for VPN network support which consisted of roughly 1000 VPN tunnels, both route-based and tunnel-based.
- Was main support for client data center migrations, responsibility being their immediate payroll access at customer cutover.
- Devices used for payroll access were time clocks which entailed VPN connections, and allowed employees to 'punch' in and out. This was a highly critical need for client.
- Was summoned in a team environment for daily client conference calls to resolve customer connection issues. This often required 24 hour support.
- Maintained and configured Cisco 2600, 2800, 2900, and 7200 routers.
- Also managed and configured Cisco Catalyst 2950, 4500, and 6500 core switches.
- Managed Cisco ASA 5585 and FWSM firewalls. Also worked with Fortinet devices.
- Supported routing protocols: BGP, OSPF, EIGRP
- Supported infrastructure for database applications and servers. SQL connections to gateway servers and our Vantage network, again for payroll purposes.
- Would review network traces for connectivity into Oracle databases as well as latency issues. Network tracing was a very big part of responsibility.
- Developed MRTG reporting tools using Perl.
- Information gathered from switches and Cisco routers included bandwidth utilization, interface errors, memory usage, and other standard OID information.
Network Analyst
NovoDynamics Inc.
10.2010 - 04.2013
- Worked as local network engineer for mid-sized software company.
- Handle CISCO firewalls and maintained connectivity and PC
related issues. - Worked extensively with IP protocol, determining port listeners and
capturing traffic to determine latency and source of problems. - Managed wireless network using various encryption schemes.
- Managed VPN accounts for travelling personnel.
Network Connectivity Analyst - Consultant
Depository Trust & Clearing Corporation
04.2009 - 10.2010
- Managed and configured IBM Websphere for MQ channel connectivity on both sides of connection. Setup of queues and queue managers as well as troubleshooting dropped transactions required.
- Responsibilities included working in the Service Activation Group, which comprised of on-boarding new and existing customers onto the DTCC network for financial access and trading.
- Worked with submitting MQ channel requests, as well as circuit ordering, NDM and FTP access, application setup, and transaction troubleshooting.
- Worked with European and Asian customers in coordinating DTCC connectivity.
- Setup procs to initiate Autoroute reporting.
- Migration team to onboard existing and new customers through BT Radianz network.
Communications Analyst
The Talbots, Inc
06.2000 - 09.2008
- Worked on OS390 mainframe and maintained VTAM, NCP, VPS, ISPF, TCP/IP stack and MQ applications. Primary responsibility were mainframe applications and upgrades
- Partly responsible for a WAN that consisted of roughly twenty-five Cisco routers
- Handled VPN responsibility for company, using Nortel, AT&T Secure Gateway, and Cisco clients
- Converted all clear-text applications to secure applications for PCI compliancy, such as FTP to sFTP and Telnet to SSH
- Also helped manage roughly one-thousand retail stores and ensure either Frame Relay or DSL circuits were installed and functioning
- Produced a backup scenario of using a Secure Computing Netgate 8100 with cell technology and DSL
- Worked in LAN arena and setup Active Directory accounts using a VPN policy for specific access to VPN
- Worked with AT&T quite extensively on use of their MPLS network, which required making routing decisions, as well as being responsible for four Checkpoint firewalls, and one Cisco PIX
- Was the focal point for all firewall changes
- Troubleshooting was also an important part of the duty, as analyzing traces were required whether from a capturing device or a PC client such as NetXray
- Also oversaw the installation of dual access fiber ring into the building and and appropriate equipment at LECs
Senior Technical Support Analyst
BARR SYSTEMS, INC
08.1994 - 12.1999
- Specialized in data connectivity and transport
- Worked with and supported BARR NT spooling product and the implementation into LAN/WAN environment, using various connectivity methods such as Bisync, SNA, and mainframe channel. Also supported TCP/IP product
- Required NT Service and stack setup on both Servers and Workstations
- Manipulated DOS drivers in extended memory for stack setup
- Used SNA Server in connectivity to SNA hosts via downstream PU and LUA handshaking
- Configured BAY and CISCO routers in achieving delivery of various protocols across the network
- Supported host connections ranging from mainframe to OS400 and UNIX platforms
- Data traffic was handled thru TCP/IP, IPX/SPX, LPR/LPD, 802.2-LLC, X.25, SNA Server-LUA, SNA, Bisync, and mainframe channel protocols. This included reviewing Sniffer, Net-Xray, Vtam buffer, and other trace types
- Required diagnosing PC hardware failures as well as bios setup
Technical Support Specialist
XEROX CORPORATION
05.1990 - 09.1994
- Extensively worked printing environments supporting printing languages which included HP/PCL, Postscript, and Xerox XES and JDL languages
- Products utilized 3770, 2780 and 3270 emulations for remote mainframe connectivity, as well as 3211 and 4245 emulations for direct channel access
- Worked with PSF and XPAF architectures
- Midrange host support includes AS400, HP - UNISYS series, and DECVAX, all utilizing various interfaces
- LAN protocols supported were 802.2, 802.3, IPX, TCP/IP, and NETBIOS
- Responsibilities also included the reading of SNA, BISYNC, VTAM and printer traces, as well as dumps produced by interface units
- Knowledge of host parameters and an understanding of VTAM, JES, and NCP were also needed
Network Technician
LASALLE NATIONAL SERVICES
08.1988 - 05.1990
- Helped in the merging of two data centers and its relocation to a new facility over an eighteen month period
- Responsibilities included hardware management of a multiple-node T1 network, and the installation of Racal-Milgo DSU’s with tail circuit technology, as well as dial-up applications
- Designed the wiring schemes necessary for internal LAN and phone connections, this included IBM-T1 and T3 shielded cabling
- Setup, designed and configured Data matrix switch for RS232 and V.35 connections
- Required to do 3725 troubleshooting and verified integrity of data to user device. BERT tests were a big part of this
- Other tools used were Fire bird test sets and multiple types of data scopes
- Supported satellite network with roughly one hundred VSAT users
- Responsible for 3174 customization's for Token-Ring to mainframe connectivity
Network Operator
EDS
06.1982 - 09.1988
- Worked as a computer operator for first two years and then moved into network operations
- Member of original Plano Project Group which installed the new data centers
- Performed functions like cabling of 3725 line sets to matrix switch, Wiring modems and other twisted pair devices to appropriate blocks
- Handled on-line applications CICS and IMS
- Dealt with cross-domain sessions, and routing type issues between twelve IBM 3090's
Education
undefined
Tampa Hillsborough Community College
Tampa, FLHigh School Diploma - undefined
Richland Community College
Decatur, ILundefined
COBOL Programming Trade SchoolBryan Institute
St. Louis, MO.Skills
- CCNA-803 (2013)
- Security: Checkpoint, Cisco, Nortel, VPN appliances
- IBM mainframe VTAM, TCPIP VPS, IPX
- Windows Server, SQL Server, VPN, VNC,
- Protocols TCP/IP, IPX/SPX, SQL, SNA, SNMP, Telnet, Unix, Cisco, Link-Sys, NDM, MQ,
- D-Link, NetGear
- IP protocol support: HTTP, HTTPS, FTPS, FTP, Citrix
- Languages: HTML, DHTML, XTML
- Basic, VB, Cobol, Java, Perl
- Security:
- SSL, AS2, PGP, PKI, VPNs, tunneling, WAP, WEP, front-end hardware,
- Checkpoint firewall, ASA firewall, Nortel Contivity
- Customer Software Problem Management
- Customer Satisfaction Telephone Skills
- Organizational Skills
- Active Directory, ADP, AIX, AS400, backup, Basic, BGP, Cabling, CCNA, CICS, CISCO, CISCO routers, Citrix, Cobol, Hardware, consultant, encryption, client, clients, Customer Satisfaction, database applications, databases, database, delivery, DOS, downstream, DSL, DSU, DHTML, EIGRP, engineer, financial, firewalls, firewall, Frame Relay, FTP, Gateway, Help Desk, HP, HTML, HTTP, IBM, IBM 3090, MVS, IMS, ISP, IP, IPX, IPX/SPX, Java, JCL, JES2, LAN, Lotus Notes, Mainframe, memory, All Microsoft products, access, Mail, Microsoft Office 97, Microsoft Windows, Windows, 2000, NT, works, Migration, modems, NCP, NETBIOS, network engineer, Network Implementation, network support, Network, Networking, Nortel, OS, Oracle, DB, Organizational Skills, OS400, OSPF, payroll, PC hardware, PCI, Perl, personnel, Postscript, printer, protocols, reading, reporting, retail, Router, routers, routing, SSH, SEMINARS, Servers, SNA, SNMP, SQL, SQL Server, SSL, Sun, switches, switch, Systems Analyst II, Systems Analyst I, Systems Analyst III, T1, TCP/IP, phone, Telephone Skills, Telnet, Token-Ring, Troubleshooting, type, UNISYS, UNIX, VPN, VISTA, VB, VM, VTAM, WAP, web sites, IBM Websphere, WAN, Windows Server, Wiring, Xray, X25
Certification
NT Training and Concepts I NT Training and Concepts II LAN/WAN Funamentals SNA/TCP Transport Router Transporting Network Implementation Workshop SNA Fundamentals Advanced SNA AT&T Communications I AT&T Advanced Communications II IBM Environments JCL Workshop Xerox Printing Systems Analyst I Training - Decentralized Printing Xerox Printing Systems Analyst II Training - Centralized Printing Xerox Printing Systems Analyst III Training - Host Configuration Understanding Postscript
Timeline
Network Engineer
Railroad Retirement Bureau / Zion Consulting
06.2023 - 06.2024
Network Engineer - Contract
Hyatt Corporation
12.2019 - 04.2023
Network Engineer
ADP Corp
04.2013 - 05.2019
Network Analyst
NovoDynamics Inc.
10.2010 - 04.2013
Network Connectivity Analyst - Consultant
Depository Trust & Clearing Corporation
04.2009 - 10.2010
Communications Analyst
The Talbots, Inc
06.2000 - 09.2008
Senior Technical Support Analyst
BARR SYSTEMS, INC
08.1994 - 12.1999
Technical Support Specialist
XEROX CORPORATION
05.1990 - 09.1994
Network Technician
LASALLE NATIONAL SERVICES
08.1988 - 05.1990
Network Operator
EDS
06.1982 - 09.1988
undefined
Tampa Hillsborough Community College
High School Diploma - undefined
Richland Community College
undefined
COBOL Programming Trade SchoolBryan Institute
NT Training and Concepts I NT Training and Concepts II LAN/WAN Funamentals SNA/TCP Transport Router Transporting Network Implementation Workshop SNA Fundamentals Advanced SNA AT&T Communications I AT&T Advanced Communications II IBM Environments JCL Workshop Xerox Printing Systems Analyst I Training - Decentralized Printing Xerox Printing Systems Analyst II Training - Centralized Printing Xerox Printing Systems Analyst III Training - Host Configuration Understanding Postscript
Similar Profiles
DENNIS CANTUDENNIS CANTU
Sr Telecommunications at Railroad Retirement Board Federal GovernmentSr Telecommunications at Railroad Retirement Board Federal Government
Dana CalhounDana Calhoun
Claims and Program Representative at Railroad Retirement BoardClaims and Program Representative at Railroad Retirement Board
NICOLE MALECKINICOLE MALECKI
Administrative Assistant at U.S. Railroad Retirement BoardAdministrative Assistant at U.S. Railroad Retirement Board