David Scott Brown

David S. Brown P.O. Box 155, Monteagle, TN 25526 •- •- Objective To provide world-class IT technical support. Summary of Qualifications Professional Network Engineer with 15+ years of experience with major telecommunications providers and vendors, specializing in turnkey project support for roll out of new technologies Proven support of Service Level Agreements in both fixed and wireless settings Excellent communication skills in multicultural and international teams Ability to adapt to new environments quickly Experience in a wide array of networks from legacy to LTE Skillset Networking/Protocols: Suites: OSI, LTE(4G), UMTS(3G), GSM, GPRS, TCP/IP, SS7, SIP Layers 5-7: telnet, FTP, SMTP, DNS, SNMP, DHCP, HTTP, SSH, Diameter, TCAP, ISUP Layer 4: SCTP, PDCP, GTP TCP, UDP, SCCP Layer 3: RLC, IP, ARP, ICMP, RIPv2, OSPF, SCCP, MTP3 Layer 2: MAC, ATM (AAL2, AAL5) Ethernet, Frame Relay, ATM, PPP, VLAN, STP, x.25, MTP2 Layer 1: SDH, PDH, SONET, MTP1 Interfaces: Uu, Iu, Gn, S1-MME, S1-U, X2, S11, S5, S6a, S5 Cisco: 4900, 4500, 3100, 3000, 2960, CatOS, IOS 12.x Huawei: eNodeB, RTN 620, RNC, SGSN, GGSN, M2000, T2000, MME, S-GW, HLR/HSS, P-GW Tekelec: Diameter Signaling Router Linux: CLI, IMAP, RedHat, Ubuntu Alcatel Lucent: PSAX, 1641SX, 1660SM, 1670SM, 1353SH and 1354RM Nokia-Siemens: NodeB Nortel: Passport 8600/15000/20000, CS2K, SCS 500, Baystack 450, BPS 2000, OPTera LH, OPTera DX, OM4100, OM4150, OM4200, OME6500, Preside MDM Motorola: CG4500e ADC: CUDA 12000 (CMTS) SIAE: nodeB Microsoft: Word, Excel, Powerpoint, Access, Project, Visio, FrontPage, Outlook, Windows 2000, Windows XP, Windows 7 O2/Telefonica: NAS, AVTOOL, Finderella, WebLCT, DCN portal, NetAct, NetSite, Comarch OSS Suite Various: Wireshark, HPOpenview, Netcool, CableMaster, VMWare, Oracle VM VirtualBox Certifications Cisco Certified Network Associate (CCNA) – status: expired Microsoft Certified Professional (MCP) for Windows 2000 – status: active Publications See technology publications at: https://www.techopedia.com/contributors/david-scott-brown Work Experience Independent Technology Professional2001 to Present The following roles represent a selection of contracts with a wide variety of international clients. Client: [Multiple Clients], 2015-present Role: Technology Journalist Technical author for articles targeted toward I.T. Professionals Content writer for tech companies Vendor: Accordant Communications; Client: Verizon; New York, 2016 Role: Operations Center Management Project support for team of fiber technicians Vendor: Tekelec; Client: Various; Agency: ResolvIt; USA nationwide, 2012, 6 months Role: Professional Services Engineer (Back Office, 3rd level, Core): configured Diameter Signaling Router Configured Cisco 4948 and 3020 switches Configured Linux servers in an HP C-Class system Integrated nodes (MME, S-GW, P-GW) into Evolved Packet Core (EPC) Analyzed Diameter messages with Wireshark Vendor: Huawei; Client: o2/Telefonica; Agency: Glotel; Nuremberg, 2011, 4 months Role: Back Office Engineer (Back Office, 2nd level, Core): swapped nodeBs from ATM to IP microwave transmission Managed NAS tickets, working with dispatch and field force. Used network diagrams to implement changes and perform migrations. Developed processes and documentation. Used various tools and platforms, including NAS, AVTOOL, Finderella, WebLCT, DCN portal, NetAct, NetSite, Comarch OSS Suite, SIAE, PSAX. Vendor: Huawei; Client: Vodafone; Agency: Manning Global; Duesseldorf/Hannover,-, 13 months Role: OMC Engineer (OMC, 2nd-3rd level, Access): Integrated eNodeBs in LTE network Configured LTE connections over SCTP links on S1/X2 interfaces. Served as Regional SPOC for technical and management escalation Optimized network optimization, creating KPIs working with Vodafone quality team Performed change control, problem management, and reporting Implemented network architecture according to design Vendor: ZTE; Client: E-Plus; Agency: Manning Global; Duesseldorf, 2010, 6 months Role: Network Helpdesk Specialist (Helpdesk, 1st level): integrated new network features Developed procedures and managed XML ticket interface project Supported ZTE RNC and NodeBs in WCDMA environment Vendor: Huawei; Client: o2/Telefonica; Agency: Manning Global; Munich, 2009, 6 months Role: Network Surveillance Technician (NOC, 1st level, Core); monitored HSPA+/ UMTS network Conducted surveillance of network using M2000 and T2000. Supported RTN 620, RTN900, 2500, OSN7500, BTS3900, SGSN, GGSN. Created, tracked and dispatched Remedy trouble tickets Client: Telekom Austria; Agencies: BEKO, Kapsch; 2009, 2 months Role: Test Case Engineer (Back Office, 3rd level): tested Nortel CS2K for integration Created test cases for migration to VoIP infrastructure Tested and integrated Nortel CS2K solution. Configurated Linux servers Vendor/Client: Nortel Networks; Agency: Manning Global; Munich,-, 12 months Role: Training Network Engineer (Lab, 3rd level, Core): supported lab for Nortel Networks training worldwide Audited, designed, and optimized network with MS Visio Managed switch optimization project, with change control and technical documentation Supported 60+ student workstation, including configuration, disk imaging, and troubleshooting Installed Nortel Software Communication System (SCS) 500 lab (VoIP SIP solution with Linux servers) Maintained VMWare servers for student network simulations Implemented VLANs, IP ranges, VRRP, etc., on Nortel PP8600/ Baystack backbone network Configured DHCP, DNS, backup storage, and firewalls on Microsoft servers Client: Somerfield; Agencies: Bio, Vanco, Affiniti; Bristol UK,-, 4 months Role: Nortel Specialist (Enterprise HQ, 3rd level, Core): supported major grocery chain IT HQ Executed moves and changes on Somerfield LAN Supported Passport 8600, Business Policy Switch 2000, and Baystack 450s Configured VLANs, trunks, Spanning Tree, etc. Performed network audit with SolarWinds and implemented network changes with MS Visio Wrote and implemented Methods of Procedure for change management Vendor: Nortel Networks; Clients: Hutchison 3G, Ericsson; Agency: Manning Global; Reading UK,-, 14 months Role: SDH Transmission Engineer (NOC, 2nd-3rd level, Core): surveillance of SDH optical and microwave Worked on backbone transmission team as Shift Leader in 3G mobile network environment. Supported SLA requirements, including ticket management, escalation, and fault resolution Monitored alarms and did troubleshooting of radio access network (RAN) circuits between RNCs and NodeBs for Nokia and NEC technical teams Interpreted network architecture provided in design documentation Provisioned circuits in Preside, Nortel Passport, and Alcatel, including connections for HSPDA, RBS, and media gateways Supported OPTera LH, OPTera DX, OM4100, OM4150, OM4200, OME6500 cross connect, TN-1X, EC-1 and Preside, Nortel Passport (7k, 20k, and Preside MDM), Alcatel transmission (1641SX, 1660SM, 1670SM, 1353SH and 1354RM) Client: British Telecom; Agencies: Hudson, Albany Group; Frankfurt, Germany,-, 12 months Role: Data Center Technician (Data Center, 1st level, Access): performed racking, cabling, and integration Performed trouble management and change control Installed and commissioned Cisco switches and routers Configured and supported Sun Solaris, Linux, MS Windows 2000/2003, McAfee Webshield, Fortinet, Cisco PIX, etc. Designed, racked, cabled, labeled, and performed troubleshooting of new customer installations Managed project for roll out of terminal servers Chaired interdepartmental meetings Worked with vendors and customer solutions managers to meet customer installation and change requirements Clients: BESTgroup, VoiceConcept, IKL, Microsoft; Frankfurt, Germany,-, 12 months Role: IMAP Specialist (Small Office): installed and supported Linux mail system Supported local area networks consisting of Linux server and Microsoft workstations Configured Cyrus IMAP server, firewalls, and WLAN. Worked with start-up consultancy on business development, including business model, project management, recruiting consultants, and internal processes and communication Instructed network engineers in technical English Vendor: Nortel Networks; Client: ISH; Agency: TMP Worldwide; Cologne, 2002, 12 months Role: Nortel Passport 8600 Specialist (Competence Center, 3rd level, Core): supported ISP/cable provider Supported Nortel Passport 8600 & 15000, Juniper M5 & M160, ADC CUDA 12000 (CMTS), Motorola CG4500e Multi-terminal Access devices (cable modems), DMS, Tollbridge, Cornerstone Voice, Baystack, CS2K, Juniper, Optera, and others. Used Remedy, CableMaster, Netcool, HPOpenview, SS7, LDAP, Radius, etc. Configured and managed OSPF links in a metropolitan IP over HFC network Managed firmware upgrade project for all Motorola MTAs (customer modems) in the network Developed procedures related to trouble management and fault resolution Participated in change management meetings and activities in the network Developed documentation of network security policies, including password implementation policy Network Operations Center (NOC) Supervisor2001 Global Center, Munich, Germany Managed 10 internet systems engineers in web hosting environment Implemented training plan for 17 engineers Supervised network surveillance of Cisco, MS, Linux, F5 load balancers, Checkpoint, etc. Coordinated with other departments for pol icy development and roll out of new services Senior Network Engineer (NOC, 1st-3rd level, Access) - Global One, Reston, Virginia and Frankfurt, Germany Supported Nortel Passport switches, Newbridge switches, Cisco routers, Motorola FRADs, Tellabs MartisDXX digital cross-connect, Alcatel TP switches, etc. Maintained departmental website Performed network management of frame relay, x.25, ATM, and TCP/IP. Network Support Technician 1997 Client: Sprint, Reston, Virginia; Agency: Kelly Technical Services Supported Nortel Passport switches, Newbridge switches, Cisco routers, Motorola FRADs, Alcatel TP switches, etc. Performed network management of frame relay, x.25, and TCP/IP. Military Service E-3, Airman 1st Class, U.S. Air Force, Personnel Specialist, San Antonio, TX Education and Training B.A. History, Grace College, Winona Lake, IN1988 Cisco: ICND, BCRAN, BCMSN, CIT, MCNS Other training: Tellabs, Nortel, Motorola, Alcatel, etc. Languages English: Native language German: Fluent French: Intermediate, Reading Spanish: Intermediate, Reading References Peter Doonan Senior Technical Trainer at GENBAND Oxford, UK- Activities and Interests Reading, Writing, Music, History, Conversation, Movies, Hiking