Engineer Project

Vidya Tirumalai Ramachandran Phone: 913-***-****

Email: *****.*********@*****.***

LinkedIn:

http://www.linkedin.com/in/vidyatirumalai

Objective Seeking a full time position in Networking and/or RF

Engineering.

Education August 2006 to August 2008

Master of Science (M.S.) in Electrical Engineering,

University of Kansas, Lawrence, Kansas GPA: 3.7/ 4.00

August 2001 to May 2005

B.E. in Instrumentation Technology, R.V. College of

Engineering, Bangalore, India. First Class with Distinction.

Professional Certifications: Cisco Certified Network Associate (CCNA) -

Active

Juniper Networks

Certified Internet Associate (JNCIA-M) - Active

Juniper Networks

Certified Internet Specialist (JNCIS-M) - Active

Technical Skills

Networking

Ethernet, TCP/IP Fundamentals, TCP Congestion Control and Avoidance, DNS, DHCP

Implementation of IP Addressing Scheme and IP Services using Subnetting, VSLMs,

and Summarization

IP Routing - RIPv2, EIGRP, OSPF, IS-IS, BGP, Multicast (IGMP, PIM), L2/L3 VPNs

Layer 2 Switching, STP, 802.1d, 802.1w, VLAN Trunking using 802.1q, VTP

Configuration

Implementation of WLAN using MPLS, HDLC, PPP and Frame Relay

Implementation of NAT and ACLs in medium -sized networks

IPv6, VPN using GRE Tunneling and/or IPSec

Multimedia Applications: RTP, H.323, SIP

VoIP - Overview, Cisco Call Manager, VoIP PBX using Asterix

Cisco Routers (2800, 2600, 2500) and Cisco Switches (2900, 3500)

Wireless Technologies

1xRTT and EVDO,GSM, UMTS

Wireless Links and Sub networks - 802.15, 802.11,Wifi

Mobile Wireless Networking: Cellular telephony, MAC algorithms, Energy

Management, Mobility and Location Management, Ad hoc networking routing protocols

- DSDV, DSR, and AODV

Cable technology: Concepts of DOCSIS, CATV, CMTS, HFC.

Simulation Tools: NS-2 simulator, MATLAB, PSPICE

Programming Languages: Perl & C programming, Shell scripting.

Operating Systems: UNIX, Linux, OpenBSD, MS Windows 98/2000/XP/Vista

Relational Databases: SQL, MS SQL Server 2005/2008, MS Access

Employment Experience Details

May 2010 to Present: Technical Support Engineer I, National Platforms, Network

Operations, Ericsson Services,

Overland Park, KS. Employment Type: Contract through Convergenz LLC, Kansas

Platform/Technology: CDMA & iDEN - Voicemail, Picture Mail, Text Messaging,

SMS, MMS, Gateways, Clearwire 4G,

LBS, E-911,Q-chat.

Description: Provide 24x7 alarm/probe surveillance and Tier I and Tier II

break/fix support for wireless data applications, features, and platforms that

comprise the Sprint's nationwide wireless iDEN and CDMA Voice and Data

Networks. Also,

Provide technical assistance to field maintenance personnel, coordination,

notification, escalation, and documentation to resolve events/issues, and

minimize customer impact.

Tier I troubleshooting on Media Access Gateways, Text Messaging Operations,

Picture Mail, Clearwire 4G services, Location Based Services, QChat.

Tier II troubleshooting on Voicemail, Call Tones and other innovative

technologies.

Maintain a strong support relationship and collaborate with numerous Tier III

teams, internal Sprint organizations, and technology vendors.

May 2009 to April 2010: Technical Support Engineer I, Wireless Switching

Centre, Network Operations, Ericsson Services, Overland Park, KS.

Employment Type: Contract through Convergenz LLC, Kansas

Platform/Technology: Support Sprint's CDMA 1xRTT and EVDO networks running

on Alcatel-Lucent equipment in a 24X7 NOC environment, Lucent 5ESS, ECP, AP

; TRAMS - Trouble Ticket Software, T1 Testing using REACT; Fault management

and alarm monitoring using Netcool/OMNIbus.

Description: Responsible for providing proactive & reactive network

surveillance, DS1/DS3 testing & troubleshooting, co-ordination, and

restoration of service affecting or potentially service affecting network

events / issues. Also,

. Provide technical assistance to field maintenance personnel, trouble

tracking, coordination, notification, escalation and documentation to

resolve events/issues, and efficiently minimizing customer impact.

. Monitor and perform analysis of all elements of the network facilities

(CSU/Telco, power, communication machinery, software, lines, modems,

and terminals).

. Monitor systems, advise supervisor of communications (network) failures

or degradation, and perform corrective action plans.

October 2008 to March 2009: Network Engineer, Automation Strategy Team,

National RF Engineering, Sprint Nextel, Overland Park, KS. Selected for the

full time position in the New College Hire Development (Rotation) Program

Platform/Technology: Wireless Data Technology including 1xRTT and EVDO

concepts ; RF Fundamentals, Propagation and Cellular concepts ;

Architecture & call processing flows for Motorola CDMA Switches ; SQL, MS

SQL Server 2008/2005.

Description: Contributed to the development and enhancement of the RF

network performance monitoring/optimization tools that process 3G 1xRTT /

EVDO hourly and daily service measurement data, OMs from the switches.

Data Modeling: This project involved pre-processing, data mining and data

interpretation of RF key performance metrics in support of statistical

analytical tools. These tools were used to

- Improve areas of poor coverage, develop new roaming detection

opportunities and control backhaul costs through improved T1

disconnect management.

. Metrics Delivery: Owned the process for creating, developing, and

publishing reports on the performance and user experience metrics of

the RF tools. Work included data aggregation, discovery, and

investigation of trends and patterns to identify source, destination,

and root-cause analysis in system response time, data availability, and

user experience.

. Tool Design: Design and enhancement of the RF Safety Analysis Tool to

calculate MPE compliance (maximum permissible exposure limits) in

accordance to Federal guidelines at all the Sprint cell sites. This

tool resulted in huge cost savings for the organization.

. Project Management: Worked with various departments (Network

Operations and IT) to gather and document the system requirements

specifications for any RF tool upgrades requests; ensured clear

communication of requirements and expectations.

May 2007 to August 2007: Graduate Intern, Automation Strategy Team,

National RF Engineering, Sprint Nextel, Overland Park, KS.

Description: Assisted RF Engineers in daily network performance

monitoring, network troubleshooting and related projects.

. Designed and developed an online tool, RF Project Tracker, following

the SDLC (Software Development Life Cycle) using ASP.Net and VB.Net.

Designed the tool to be a one-stop shop for Project Managers to track

and maintain projects efficiently.

. Designed and developed the internal departmental website using HTML

and ASP.

. Gained a great exposure to new technological systems and multiple

vendor products.

January 2007 to May 2008: Graduate Teaching Assistant, Dept. of Electrical

Engineering, University of Kansas, Lawrence, Kansas.

Responsible for teaching laboratory in the 'Electrical Circuits' for a

class size of 40-50 junior & senior level students. Prepared lab

experiments and discussion material, graded lab reports & class

assignments.

July 2005 to July 2006: Software Engineer, Tech Mahindra (formerly Mahindra-

British Telecom), Mumbai, India. Platform/Technology: UNIX (AIX), Shell

Scripting

Description: Involved in the development, support, and testing phases of

converting the AT & T wireless billing system into Cingular's (Client)

wireless billing system.

. Analyzing the project requirements and preparing the system

requirements specifications.

. Developing shell scripts to facilitate the automation of the billing

system.

. Debugging and troubleshooting any errors in testing before

implementing the scripts in production; resolving customer-impacted

service tickets.

Relevant Graduate Courses

.

Mobile Wireless Networking Random

Signal Theory Digital Signal Processing

High Performance Networks Principles

of Digital Communications Digital Image Processing

Internet Routing Architectures

Information Security Database Management

Resource Sharing on Broadband Access Networks Management Information

Systems

Graduate Academic Projects

. Performance of Wireless Protocols, DSDV & DSR in Energy Constrained

Networks using ns-2 simulator and Perl.

- As part of "Mobile Wireless Networking" class project, I attempted

to analyze how usage of different routing protocols such as DSR,

DSDV, and OLSR affects the good put of a given network with and

without energy introduced at each node respectively. The node

termination rate or the network lifetime and overall node density

was observed per traffic pattern of each routing protocol.

. Implementation of Adaptive linear equalizer using the Zero-forcing and

Mean Square Error algorithms & the adaptive decision-feedback

equalizer in Matlab.

. Implementation of CPM Modulator and demodulator; computing the bit

error rate using Matlab.

. Implementation of Golay and Hamming codes in Matlab.

Visa Status: Hold OPT EAD work authorization - Can start work immediately.

Open to Relocation.

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