Mark Krenn

Mark Krenn Email and Phone Number

Senior Tech Vendor Management @ AT&T
Rapid City, SD, US
Mark Krenn's Location
Rapid City, South Dakota, United States, United States
Mark Krenn's Contact Details

Mark Krenn personal email

n/a
About Mark Krenn

Experienced Senior Real Estate & Construction Manager with a demonstrated history of working in the telecommunications industry. Skilled in 4G, Antennas, Universal Mobile Telecommunications System (UMTS), Code Division Multiple Access Method (CDMA), and Troubleshooting. Strong operations professional graduated from Iowa Lakes Community College.

Mark Krenn's Current Company Details
AT&T

At&T

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Senior Tech Vendor Management
Rapid City, SD, US
Website:
att.eu
Employees:
218956
Mark Krenn Work Experience Details
  • At&T
    Senior Tech Vendor Management
    At&T
    Rapid City, Sd, Us
  • At&T
    Senior Tech Vendor Management
    At&T Aug 2019 - Present
    Rapid City, South Dakota
  • At&T
    Sr. Real Estate & Construction Manager
    At&T Jun 2010 - Aug 2019
    – Manage turf vendors & general contractors for new site build construction, antenna mods, LTE, and capacity adds.– Program manage all special events in MNP (IA/NE/MN/SD/ND) market including expense mods, emergency temp COW/COLT deployments, new site builds, LTE, and carrier add implementation including E911, IT Billing, temp NEPA. – A FirstNet first responder for the western SD/ND and eastern WY market. On call 24/7 for emergency FirstNet deployments.– Approve co locations from an operations stand point.– Review and approve structural analysis reports.– Create & maintain updated project tracking reports.– Assist site acquisition in landlord/tower issues.
  • Alltel
    Project Engineer
    Alltel Apr 2007 - Jun 2010
    Rapid City, South Dakota Area
    o Managed construction & implementation of over 60 new cell sites in western South Dakota & eastern Wyoming.o Managing a Capital budget accurately and efficiently with attention to wise use of funding, tight procedural control of funds, and, getting the best value for the money (bidding work, finding new alternatives, and minimum change orders).o Forecast funding on a monthly basis accurately.o Maintain professional relations with vendors and external customers.o Engaged in active networking with coworkers.o Worked within the system to affectively identify and recommend changes to improve current process.o Attend City and County board meetings for building permit / CUP approvals.o Order towers, shelters, base stations, antenna material, Telco, commercial power for new and existing cell sites.o Review and approve search areas, surveys, construction drawings, RF design sheets.o Create & maintain updated project tracking reports and hold biweekly meetings for associated departments & upper management.o Order tower structural analysis reports on existing towers.o Assist Network operations in tower modifications, antenna - coax change outs / modifications, base station modifications.
  • Alltel
    Network Technician
    Alltel May 2004 - Apr 2007
    Rapid City, South Dakota Area
    o Maintain 23 Omni & sectored cell sites in and around Rapid City. This includes troubleshooting any and all faulty hardware & equipment within the shelter. ( DS1 & DS3 Microwave, Nortel CDMA & GSM BTS’s, tower lighting controllers, generators, battery back up systems, power plants, Nortel analog CE & RF equipment, grounding equipment, HPA’s, high & low speed MUX’s, HVAC’s ) Doing annual preventative maintenance on these sites.o Operate & maintain Anritsu sweep & spectrum analyzing gear, ZKSAM call testing gear, T-1 & T-3 testing gear, Byrd & HP RF power measurement gear, company vehicles.o Periodic visual inspections on towers, feed lines, antennas, lighting, and grounding.o Site walks on new builds.o Walk through inspections with local, county, state and federal officials.o Work with area net techs, outside vendors, inner company network planners, Project & Performance Engineers, Customer Care, IT, ect.o Install new Nortel GSM & CDMA BTS’s and related equipment including CE, radio, & Carrier upgrades, outdoor BTS batteries, surge suppressors, AC power fail units, and power plants. o Track and resolve interference issues.o Work with NOC & switch group personnel to resolve outage issues.o Package and ship faulty equipment for repair.o Did Harris Constellation MW school in San Antonio TX. Adtran training in Rapid City. Winter survival training in Anaconda MT.
  • Western Wireless
    Project Manager Ic
    Western Wireless 2000 - 2004
    Sd, Nd, Ia
     Managed partial and full construction of over 30 cellular tower sites in South Dakota, Minnesota, & Iowa. Assisted contractors in general construction & invoicing. Daily computer networking with Corporate and Regional managers as well as weekly teleconferences.  Assisted in Collocation agreements. Assisted in implementation of Wireless Residential Telephone Service on the Pine Ridge Indian Reservation. Coordinated and assisted Indian Health Services (Pine Ridge, SD) with automated ambulance 2-way communication.  Did site acquisition on 6 new cellular tower sites in western South Dakota. Did all local & County permitting for new sites. Negotiated agreements with adjoining land owners. Managed a local warehouse. Delivered numerous parts to new and existing sites. Assisted cellular technicians with microwave pathing, tuning, and initial turn up of Analog and CDMA digital cellular service. Did tower equipment inventory. Installed grounding, connectors, & cabling inside and outside communication shelters.

Mark Krenn Skills

Cellular Communications Cdma Microwave Project Management Wireless Computer Network Operations Gsm Rf Vendor Management Contract Negotiation Troubleshooting Construction Testing Rf Engineering Switches Project Planning Umts Antennas Lte 4g T1 3g Radio Frequency Wireless Technologies Code Division Multiple Access Method Universal Mobile Telecommunications System

Mark Krenn Education Details

  • Iowa Lakes Community College
    Iowa Lakes Community College

Frequently Asked Questions about Mark Krenn

What company does Mark Krenn work for?

Mark Krenn works for At&t

What is Mark Krenn's role at the current company?

Mark Krenn's current role is Senior Tech Vendor Management.

What is Mark Krenn's email address?

Mark Krenn's email address is ma****@****att.com

What schools did Mark Krenn attend?

Mark Krenn attended Iowa Lakes Community College.

What skills is Mark Krenn known for?

Mark Krenn has skills like Cellular Communications, Cdma, Microwave, Project Management, Wireless, Computer Network Operations, Gsm, Rf, Vendor Management, Contract Negotiation, Troubleshooting, Construction.

Who are Mark Krenn's colleagues?

Mark Krenn's colleagues are Ed Lorio, Erika Martinez, Alex Lopez, Mohamed Heshmat, Andrew Rice, Renson Ureta Rojas, Vic Agriesti.

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  • Mark Krenn

    United States

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