Charles Crizer

Charles Crizer Email and Phone Number

GROL w/ RADAR, Senior Network Engineer - Microwave @ T-Mobile | Wireless Networking Expert @ T-Mobile
Charles Crizer's Location
Columbus, Ohio, United States, United States
Charles Crizer's Contact Details
About Charles Crizer

As a Senior Network Engineer at T-Mobile, I leverage my FCC license and Navy-trained RADAR skills to provide wireless network engineering and operations support for core and Ethernet backhaul, 4G, 5G, and CBRS technologies. I work with various router, switch, and microwave devices across multi-vendor platforms, such as Nokia, Cisco, Ceragon, DragonWave, and Ericsson.With over 20 years of experience in the telecommunications industry, I have a proven track record of delivering high-quality network integration, planning, design, and deployment for IP/Microwave transport nodes, such as IP-Aggregators, Cell site Routers, and Microwave Radio devices. I also have extensive knowledge and proficiency in microwave path design using Pathloss5, FCC Part 101 license management, LTE backhaul network engineering, and layer 3, layer 2, MPLS networking and troubleshooting.My mission is to provide innovative and reliable solutions for the wireless network infrastructure, ensuring optimal performance, security, and scalability. I am also passionate about learning new technologies and skills, such as C, C++, Assembly, Python, SQL, Linux, BASH, and Microsoft Excel. I am an advocate and user of business intelligence and analytics tools for bidding and cost tracking, and a certified professional in database administration and development.

Charles Crizer's Current Company Details
T-Mobile

T-Mobile

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GROL w/ RADAR, Senior Network Engineer - Microwave @ T-Mobile | Wireless Networking Expert
Charles Crizer Work Experience Details
  • T-Mobile
    Senior Network Engineer
    T-Mobile Feb 2022 - Present
    Bellevue, Wa, Us
    Magenta Integration Team - Backhaul (MITBH)Wireless Network Engineering and Operations support. T-Mobile microwave and backhaul integration for 4G, 5G Radio Access Network (RAN).Custom configuration of microwave radios. Troubleshooting RF and ethernet issues. Verifying FCC Part 101 compliance of microwave systems. Microwave Subject Matter Expert (SME) Tier III support. Microwave models Ceragon IP-20A, IP-20C, Ericsson 6693. Nokia (ALU) 9500MPR, Cambium, Aviat, Radwin, DragonWave, FastBack. Microwave upgrade from Aviat to Ceragon with custom Layer 2 networking configuration.Microwave RF expert (FCC Certified) providing advanced microwave and path troubleshooting, specifically for remote mounting microwave radios and waveguide and/or large 6ft+ antennas are involved. Microwave construction, pathing, integration, and troubleshooting MOP creation. Remote support or field teams for all phases of construction, installation, testing & turnup of microwave, backhaul, circuit and other cellular equipment. Often supporting multiple field crews at the same time.Provided remote assistance for all US Regions and markets. Working directly with General Contractors, Field Ops, Engineering, and Project Managers. Advanced Layer 2 network design and implementation including Layer 1 Link Bonding. AAV 1G & 10G Circuit delivery and integration. RFC 2544 circuit testing. Nokia IXR-e, 7705, 7750 and Cisco router scripting and troubleshooting. Cell-site backhaul integration and turnup. Project tracking and reporting via multiple databases and custom spreadsheet applications. Contractor via Glotel, Inc.
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  • Shentel
    Senior Network Engineer Ii - Carrier Ethernet Mobile Backhaul
    Shentel Nov 2013 - Dec 2021
    Edinburg, Virginia, Us
    Shenandoah Telecommunications Company (Shentel) Wireless EngineeringMicrowave & Fiber Backhaul Responsible for backhaul engineering of Shentel's Wireless network.Performing network integration for IP/Microwave Transport nodes such as IP-Aggregators (IPAs), Cell site Routers (CSRs), and Microwave Radio devices across multi-vendor platforms. As well as network planning, system design and network deployment.
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  • Charles Crizer Consulting
    Technical & Business Consultant
    Charles Crizer Consulting May 2013 - Oct 2013
    Woodstock, Va, Us
    Telecommunications, Microwave, and Wireless Construction Consulting ServicesWireless Construction Services • Microwave Installation and Commissioning • Microwave Troubleshooting, ALU 9500MPR, DragonWave, BridgeWave • Pathloss 5 Path Modeling and Analysis • PIM Testing and Troubleshooting • Sweep Testing and Analysis • DC Power -48VDC, 24V, 12V • Patent Pending Custom -48VDC Telecom Portable Emergency DC Power SolutionCarrier & GC Specific Solutions • AT&T, Sprint, ClearWire, T-Mobile, Cricket, Windstream • Alcatel – Lucent (ALU), Bechtel, • 4G, LTE, MW, CDMA, WiMax, WiFi, 802.11, In-Building and DAS • IP Networking, IPv4, IPv6, MPLS, OSPF, BGP, CIDR. Cisco, Ericsson • SITERRA, CASPR, FST • Job Costing and Bid Preparation • Custom data integration: FST / SITERRA / CASPR integration with internal systems
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  • Mastec Network Solutions
    Operations Director Mid-Atlantic Market
    Mastec Network Solutions Feb 2013 - Mar 2013
    Coral Gables, Fl, Us
    During this period, Optima Network Services underwent a brand change as part of its integration into the Mastec family of companies.Expanded the Mid-Atlantic market to support Wireless, Microwave, and Electrical Contracting. Initial headcount of 35 people consisting of four tower crews, three commercial electrical crews and three senior RF technicians.Full P&L and financial responsibility and accountability for the Mid-Atlantic Market. Still in the initial market start-up phase. Running at about a 2% profit margin and growing. Primary customer was Alcatel-Lucent (ALU) for the Sprint Vision LTE Project and Microwave. Markets: Washington DC, Baltimore, (BAWA) and Norfolk.Local business development resulting in the award of the ALU Microwave project and well as tower construction projects for the US Navy. Responsible for all large project estimating and bidding.Extensive data modeling for bulk job estimating. Custom data modeling and integration with ALU’s FST to provide job and change order tracking and integrating with separate internal invoicing systems. Heavy usage on SharePoint Excel, Power Pivot, VBA, and DAX coding.Developed job, project, and time tracking for financial reporting and market level management as a work-around to solve internal data visibility issues with the internal accounting systems. Created weekly and monthly reports using Excel, PowerPoint, and SharePoint.As LTE, Microwave, and RF Subject Matter Expert (SME) conducted hands-on training on technical RF topics such as; LTE radio installation, proper grounding, -48VDC and 24VDC power, ALU 9500MPRe MW equipment and antenna installation, microwave pathing with path boxes, line sweeping, elliptical waveguide connector installation and tuning, line sweeping, fiber termination, PIM, radio burn-in, integration, IP routing configs (Cisco), close-out procedures, and basic troubleshooting. Final QA authority for the market.
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  • Optima Network Services
    Operations Director Mid-Atlantic Market
    Optima Network Services Apr 2012 - Feb 2013
    Startup Director for the Mid-Atlantic Region - MD, DC, VA, PA, WV, and DE. Overall responsibility for all market level activities: staffing, production, costs, reporting, and business development. Built a new regional telecom and electrical construction division serving the region. In 6 months, grew from 0 to 35 people consisting of 4 tower crews, 3 commercial electrical crews, 3 senior RF technician, construction and project management, support staff and a 10,000 sqft warehouse.AT&T Microwave Backhaul Project (ETTCS) (AT&T TURF)Senior Project Manager (SPM) for the AT&T Microwave ETTCS project for the South East Region. Personal focus on the AL, MS, LA, FL submarket as it was the first nationwide to construction. Project was for complete turn-key builds of multiple 20+ mile microwave links. Site Acquisition, Line of Site (LOS) verification, Construction, and LTE integration. Project was based on the ALU 9500MPR and the Ericsson Mini-Link TN, Cisco MWR-2941, and Tellabs 8605. Tower installation of 4ft to 10ft dish antennas and elliptical waveguide.• 24 microwave links (100% of possible links) on-air and ready for LTE rollout. • Less than 60 days from Engineering to On-Air – including Site Acquisition. • AT&T MOP creation, CASPR and SITERRA updating.• Final QA on LOS Surveys, drawings, and all technical Microwave acceptances.• “Troubleshooter of last resort.” On site to fix a number of last-minute network and integration issues between the ALU 9500MPR and Cisco MWR-2941.• Nationwide company SME for the AT&T ETTCS Project. Primary vendor on the ALU Sprint Vision LTE 4G and Microwave (MW) project in the Baltimore and Washington DC (BAWA) Market. Responsible Management (RM) and Designated Individual (DI) for our Virginia Contractor License. Classifications: BLD, ESC, AES, EMC, FSP, H/H.
  • Site Link Construction, Llc
    Director Of Services
    Site Link Construction, Llc Jul 2009 - Mar 2012
    Directly responsible for all construction revenue and profits. Increased gross revenue about 300 percent and built actual job profits from a negative range into a positive trend.Converted company from outsourcing all labor to performing nearly all activities in-house thereby significantly increasing profitability. Significantly increased the use of IT resources in; bid estimating, job tracking, project management and cost accounting. Major development of automated and bulk bid estimating. Significant changes to highly complex bid forms were able to be performed within seconds instead of hours allowing for up-to-the-last-minute bid changes before submission. Margin and profit data returned on a per line-item basis. This allowed for proper consideration of large price and/or pass-thru costs such as crane or other special subcontractors. Primarily in Excel with a heavy use of pivot tables and custom VBA coding with occasional customized DLL add-ins. Designed and developed a portable emergency -48VDC telco power system for telecomm customers (Patent Pending). This signature solution ensured a prompt and timely response to power outages resulting is a significant improvement to system uptime. In-Field senior microwave and RF QA tech activities: • Installation of 100’s of 4G LTE, CDMA, WiFi, WiMAX Wireless sites for ALU, Sprint, and AT&T.• PIM testing and mitigation.• Antenna and line sweeping and analysis; return loss, cable loss, and DTF.• Microwave installation, path alignment, and integration: DragonWave, BridgeWave, Ceragon.• Satellite link repair and maintenance. • ASIG Antenna integration.• Async, TFTP, and other network based setup and configurations. Custom coding for more efficient equipment setup. • Troubleshooter for all advanced issues; PIM, GPS lock, bitrate errors, T1/T3 issues, DC power.Recognized as an local wireless and RF expert with a reputation for absolute quality. Other customers: ClearWire, Crown-Castle, Windstream, and Bechtel.
  • Crizer Brothers Incorporated
    Founder & Ceo
    Crizer Brothers Incorporated Sep 2005 - Aug 2009
    Alexandria, Us
    Crizer Brothers was incorporated in in 2005 and sold in 2009.Led the expansion of a small, local, sole-proprietor data cabling business into a multimillion dollar General Contracting Company specializing in physical network infrastructure, telecommunications, wireless, microwave, tower and antenna work across the Mid-Atlantic Region.Secured business relationships and contracts with: SBA, Crown Castle, American Tower, Sprint, Clearwire, Cricket. Enjoyed a startup culture of hands-on technical field work, business admin and business development. Typical 80+ hour weeks.• Built or upgraded hundreds of cell sites for Sprint, Clearwire, and T-Mobile. iDEN, CDMA, 3G GSM, and WiMAX systems.• Installed dozens of Ethernet and T1 carrier microwave sites in the area. BridgeWave, Ceragon, Airlinx, Adtran.• Installation of local XM Radio repeaters, 2-way radio, LMR systems, DAS, WiFi, and VOIP PBX systems.• Actual Heliax Coax cable in-place repair – performing cable surgery and soldering a new section of cable.• Datacenter build-out of CAT6 and multimode fiber cabling, raised flooring, and UPS systems.• Network routing and troubleshooting of Cisco 7200 OSPF corporate network and microwave WAN. • Custom corporate AV and conference room buildout.Company RF and technology expert, sweep tech, and QA. Passed the licensing tests for the Virginia General Contractor License. Classifications: BLD, ESC, AES, EMC, FSP, H/H. Was listed as both Responsible Management (RM) and Designated Individual (DI) on the license.Devised complex data models for fast, efficient, and accurate bid estimates and proposals. Used Excel, VBA, SQL Server, Pivot Tables, and advanced data modeling techniques to automate the process as much as possible.Developed and implemented a corporate safety program that exceeded many OSHA standards. After 3 years our Workers Comp policy was eligible for an Experience Modifier of .96, a significant achievement in the industry.
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  • Objectvideo, Inc.
    Senior It Engineer (It Director)
    Objectvideo, Inc. Feb 2000 - Sep 2005
    Reston, Va, Us
    Managed the Information Technology (IT) Department and all IT resources. Built company infrastructure from the ground up. Over 100 high capacity servers and multiple high-speed GbE OSPF VLAN networks across multiple offices. Custom WiFi and self-powered portable WiFi APs for developers.Dual T3 and multiple T1, multi-homed BGP Cisco network.RADIUS based VPN and dial-up security. Fortinet, CheckPoint, and custom firewalls - 100% perfect intrusion record.Out-of-band (OOB) terminal based management system for all devices. This system provided complete control of all equipment including remote power cycle. Telnet and modem based access using Cisco 7200 series, Cisco terminal server. Setup and maintenance of in-house telephone PBX. POTS and VOIP implementations and in-building DAS for cellular wireless.Supervised IT staff and $1M+ annual IT budgets. Established server, user, and developer baseline systems. Extensive disaster and reliability planning. New generator with UPS. Routine disaster and recovery drills. Backup Fanatic.SQL 2000 DBA and developer of HR and Sales databases and websites. Managed developer code builds and trouble ticket tracking. Designed and built a number of custom labs including:• Video processing lab with about 50 specially designed servers and dozens of live and recorded test video feeds.• A bleeding-edge, high performance, “super computer” consisting of a cluster of over a dozen computers. A significant achievement for a startup in 2001. • Prototype video greeting card web appliance for Hallmark. • Product Test Lab for the QA department. Allowed for a complete reset to baseline between tests.• Last-Mile Telco simulator to test MPEG-4 video compression over POTS Dial-Up. • A 1 TB high-speed custom RAID array for video storage saving over $200,000.• Hand-built electronics for developers. IR illuminators, video switches, etc.Managed all internal IT resources, Windows AD domains, Exchange email, security, routers, etc.
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  • Verizon (Bell Atlantic)
    Senior Systems Engineer
    Verizon (Bell Atlantic) May 1997 - Feb 2000
    Basking Ridge, Nj, Us
    R&D Lab technical lead testing large-scale networks and emerging technologies such as; DSL, VOIP, Multicast Streaming, PPPoE, ATM based ADSL, Virtual Private Networks, DOCSIS Cable Networks, BGP and OSPF routing, QoS, and advanced routing such as MPLS. Protocol-level testing based on IEEE Testing Specifications. Acceptance testing of a WEB based dynamic configuration system for Verizon's new ADSL Network. System consisted of an integrated DHCP, DNS, Oracle Database, and webserver. Testing required an expert, protocol-level knowledge of DNS, DHCP (RFC 2131), BOOTP, PPPoE, and HTTP. Testing based on IEEE 829 testing standards. IEEE based acceptance level DSL equipment testing over last-mile telco POTS simulators. Evaluated numerous Virtual Private Networking systems. Prototyped the corporate VPN system using Nortel’s Contivity Extranet Switch. Used Entrust PKI as well as RADIUS for authentication and accounting. System accepted for corporate-wide use. Further testing VPN integration with other technologies such as VOIP and IP video streaming. Cisco routers IOS (7206, and 7200 series)Prototyped and built a corporate-wide IP Multicast network for CEO broadcasts. Networks included real-time video encoding with Multicast and Unicast program delivery. (MBONE)Testing of IP Telephony and Voice-over-IP (VOIP) systems. Required designing and building various IP and TELCO networks.Built a custom high-end home entertainment prototype showcase to demo to senior corporate management.Coined the name “Dreamlab” to capture the spirit of the lab.
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  • Noaa - Office Of High Performance Computing And Communication
    It Project Manager
    Noaa - Office Of High Performance Computing And Communication Nov 1996 - May 1997
    Lead the Collaborative Technologies Evaluation, Integration, and Pilot Application program. Overhauled all HTTP services. Multiple NCSA servers were replaced with an Apache 1.2b7 server supporting 5 virtual domains with security. PERL CGI scripts were utilized to begin entry of project data. Scripts were then modified for use with Microsoft Access. Laboratory site was maintained using NetObject Fusion version 2.0. Data consisted of project reports, product data, test results, and pilot information.Pilot programs were conducted on many technologies and products utilizing resources from all elements of NOAA including Intel ProShare, Microsoft NetMeeting, Lotus Notes and Domino, Microsoft Access, and Microsoft Office. Built a test laboratory to evaluate products. Lab consisted of distributed Unix, PC, and Apple systems throughout the country. Investigated H.323 video conferencing and T.120 application sharing standards.
  • Sprint Nextel
    Senior Systems Engineer
    Sprint Nextel Apr 1996 - Nov 1996
    Overland Park, Kansas, Us
    Performed setup, configuration, testing, and monitoring of hundreds of Cisco 7513, 7000, 7511, 2507, routers, ADC Kentrox DataSmart DSU/CSU, T3/E3 IDSUs. With hundreds of T3, T1, and ISDN circuits. As well as a number of optical switches for dozens of OC3 circuits. Supported IP, SONET, ATM, HDLC, SMDS, and Frame-Relay (FR). Developed software for network management using C, PERL, AWK, and many UNIX utilities. Wrote detailed technical procedures. Developed an SNMP management system to daily monitor the entire network.Integral part of the initial configuration and implementation of the new Sprint DialNet Corporate internetwork along with Sprint's Sprintlink internetwork.Coordinated the initial Configuration Management (CM) of the network. This involved developing a number of programs for automated entry of router, link, customer, CIDR block and DNS zone data into the corporate configuration database. The project required software to be designed in C and PERL to ensure complete and accurate representation of the DialNet system in the database. Supervised the remote testing and troubleshooting of T1 and T3 circuits. As the engineer in charge, would direct field technicians specifically how and in what areas to test.
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  • Us Navy
    Petty Officer Second Class (Advanced Electronics - Radar)
    Us Navy Apr 1986 - Apr 1992
    Washington, Dc, Us
    Fire Control Technician Second Class (Advanced Electronics Technician) Honorably discharged. Six years of active duty as a Fire Control Technician (Advanced Electronics Program) Trained in; advanced electronics, circuit level analysis, troubleshooting, and repair, to operate and maintain radar and associated computer systems. Training also included high voltage DC & AC, digital and analog circuits, vacuum tubes and solid state, RF transmission, antenna, radar, syncro servers, and coolant systems. Earned NAVY NEC FC-1166 and FC-1162.Served 4 years at sea aboard the USS Benjamin Stoddert DDG-22 and USS Harold E. Holt. FFG-1074. Operation and maintenance of the AN/SPG-51C with RDP Upgrade Radar. The radar is a primary part of the TARTAR MK-74 Missile Fire Control System. Maintenance and operation of the Phalanx CIWS, Block 1 model. Was one of the original operators of the Joint Over-the-Horizon Tracking System (JOTS). Selected as the fleet database administrator for the system. JOTS was a SECRECT tactical data system. System Administrator and manager of the Shipboard Non-Tactical Automated Data Processing Program, SNAP-II and fleet-wide expert (SME) in Pearl Harbor, Hawaii.Coordinated the installation, training, and security of all shipboard microcomputers.Shellback 1/10/89 at 84-24 East.SECRET security clearance.Fire Control Technician Second Class (FC2) / Petty Officer Second Class (E5) Boot Camp San DiegoBasic Electronics and Electricity School (BE&E) - San Diego CaliforniaFire Control Technician (FC) "A" School - Great Lakes IllinoisFire Control Technician (FC) "C" Schools - Mare Island California • AN/SPG-51C Digital Radar • AN/SPG-51C Digital Radar with RDP UpgradeAt Sea Onboard: USS Benjamin Stoddert DDG-22, Pearl Harbor HawaiiAt Sea Onboard: USS Harold E. Holt FF-1074, Pearl Harbor Hawaii
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  • Us Navy
    Uss Benjamin Stodder Ddg-22
    Us Navy Dec 1987 - Dec 1991
    Washington, Dc, Us
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Charles Crizer Skills

Telecommunications Wireless Troubleshooting Lte Testing Microwave Cellular Communications Wireless Networking Rf Networking 4g Ip Voip Project Management Program Management Integration Internet Protocol Wireless Technologies Management Wimax Sharepoint Cisco Technologies Voice Over Ip Start Ups Ms Project Network Engineering Switches Carrier Ethernet Visio Microsoft Sql Server Disaster Recovery Leadership Microsoft Excel Construction Management Business Intelligence Radio Frequency Access Database Administration Critical Thinking Microcontrollers Electronics Powerpivot Pathloss Distributed Antenna Systems Das Nmea

Charles Crizer Education Details

  • U.S. Navy Radar
    U.S. Navy Radar "C" School (Advanced Electronics)
    Analog
  • U.S. Navy Radar
    U.S. Navy Radar "C" School
    And Operation
  • U.S. Navy
    U.S. Navy "A" School (Advanced Electronics Program)
    Repair
  • U.S. Navy Basic Electronics And Electricity
    U.S. Navy Basic Electronics And Electricity
    Basic Electronics
  • Cleveland Institute Of Electronics
    Cleveland Institute Of Electronics
    Applied Science Degree Program - Electronic Engineering Technology
  • Harford Community College
    Harford Community College
    Electronics And Computer Science

Frequently Asked Questions about Charles Crizer

What company does Charles Crizer work for?

Charles Crizer works for T-Mobile

What is Charles Crizer's role at the current company?

Charles Crizer's current role is GROL w/ RADAR, Senior Network Engineer - Microwave @ T-Mobile | Wireless Networking Expert.

What is Charles Crizer's email address?

Charles Crizer's email address is ch****@****tel.com

What is Charles Crizer's direct phone number?

Charles Crizer's direct phone number is +120221*****

What schools did Charles Crizer attend?

Charles Crizer attended U.s. Navy Radar "c" School (Advanced Electronics), U.s. Navy Radar "c" School, U.s. Navy "a" School (Advanced Electronics Program), U.s. Navy Basic Electronics And Electricity, Cleveland Institute Of Electronics, Harford Community College.

What are some of Charles Crizer's interests?

Charles Crizer has interest in Visual Basic, Electronics, Chess, Science And Technology, Khan Academy, Disaster And Humanitarian Relief, Amateur Radio, Coding C, Databases.

What skills is Charles Crizer known for?

Charles Crizer has skills like Telecommunications, Wireless, Troubleshooting, Lte, Testing, Microwave, Cellular Communications, Wireless Networking, Rf, Networking, 4g, Ip.

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