SUMMARY:

• An Accomplished Senior Lead Architect / Design Engineer / Technical Manager, with 16 years of proven track record in delivery of high quality results in Architecture, Design, Development, and Quality Assurance of Voice, VoIP(SIP, H.323, MGCP/NCS) IMS, Telecom (PSTN, SS7, ISDN), Cable and IP Networking (SMB and Enterprise class) Products and Solutions. Possess strong Leadership and Project Management skills.
• Expertise in Business Class Voice SIP Trunking Solution Architecture Design, Development and successful rollout for SMB and Enterprises.
• Expertise in Enterprise class Hosted PBX (High Definition - Business Voice Edge) Architecture Design, Development and Integration for SMB and Enterprises.
• Proficiency in Development and Integration of Enterprise/Business Class Voice PRI Trunking solution for SMBs
• Expertise in Commercial IMS (IP Multimedia System) and 3GPP2 Architecture Design implementation, and integration with Ericsson and Huawei IMS cores and QA s
• Expertise in Advance Business Class voice Cross Rate Center (Number) Porting solution for Service providers and Enterprises.
• Proficient in Unified Communications, Collaboration, and Call center solution integration with Service Provider and Enterprise environment
• Expertise knowledge of Cisco VoIP, including Call UCM 10.X, Cisco BTS, Cisco ATA SPA232, Routers & Switches, Unity, Contact Center, and Enterprise Voice Architectures.
• Expertise in product architecting, design, development, and implementing H323/SIP-ISDN video conferencing Gateway, Gate keeper, SIP/H.323/H.320 -IP Telephone based on PPC 8272 family
• Proficiency in product architecting, design, development and implementation of Telecom switches - PSTN, ISDN-PBX, PRI, SS7, SRAX
• Proficiency in IP Telephony and Video conferencing Technology
• Proficient in Solution design and well versed with Broadsoft Servers (AS, XS NS, MS, WS, XSP, PFS, DMS, MS) Advanced Call control, Features, UMS, CC, SIP Trunking, IMS, PRI Trunking, Hosted PBX solution design, Integration, Configuration, upgrade, Installation, Patching, and Licensing.
• Proficient in Integration, Installation, validation and configuration of ACME 9200/4500 SBCs - Session Border Controllers
• Expertise in Integration, Installation, validation and configuration of Edgewater Networks Edgeview, ESG 4550 and FX 5300 FL.
• Proficient in Integration, Installation, validation, and configuration of Adtran IAD 908e, IAD 640, NV 3430, NV4430 and Adtran n-Command/MSP
• Proficient in Integration, configuration, and validation of Arris 502, 504, 508, 602, 604, 608, 722, 760 and 820 cable modems with Arris C4, Cisco 10K, E6K, BSR CMTSs.
• Extensive implementation Knowledge of SIP, H.323, H.320, MGCP, MEGACO, SDP, RTP, RTCP, SS7, ISDN, PSTN, Diameter, Radius and FAX protocols, H.323, MGCP, protocols
• Expertise in IP protocols: TCP/IP, RIP, EIRGP, OSPF, BGP, HTTP, DHCP, NTP, FTP,TFTP
• Implementation knowledge of Cloud computing, OpenStack, VMware, Virtualization
• Proficient in C/C++, x86-Assembly Programming
• Extensive Hands-on Debugging, Configuration and monitoring tools such as Wireshark, tcpdump, Empirix, EXFO, Sage, IXIA, HPQC, JIRA, etc.
• Deep knowledge of voice VOIP & TDM technologies and Architectures
• Advanced knowledge of CCNA Technology, Cisco IOS, Routing Protocols-RIP, EIGRP, BGP, GRE and OSPF
• Extensive expertise with Alcatel-Lucent MGCF/MG and META SWITCH, Cisco BTS, Cedar Point Safari, CALEA, E911 (Intrado, TCS), Toll-Free, N11, SBC Peers, PSTN, IMS, SevOne, and Spectrum.
• Product design Experience with AVAYA IP Office PBX, Cisco UCM, Cisco ATA, Routers & Switches, Asterisk, Adtran NV7100 PBX, and Mediant1000 CPE solutions
• Test Automation Architecture development for Business class voice features validation, proficient Scripting (TCL, Expect, Shell).
• Experience in design and testing Multiprotocol VoIP Session Border controller, IP-PBX, Unified Messaging, IVR, Call center, IM, Visual Voice Mail, Android platform
• Automation experience in CDMA 1xEVDO and VoIP
• Hands-on Extensive working knowledge in Broadsoft platform(R18sp1/R17/R16), ACME SBC, Adtran IAD 908e/644 & ESG, Edgewater Networks- ESG 4550/5300FX, Edgeview, Avaya IP office, Cisco UCM
• Embedded board Architecture, design and development proficiency with Microprocessors (x51/x86) for ISDN BRI, PRI, V.35/RS-449, E1/T1 Line cards, Trunk cards, and control cards.
• Experience in RTOS, BSP, Device drivers design and development for Intel x86/186 Microprocessors
• Architecture, Design, Development and testing experience in communication protocols (H.323, SIP, RTP/RTCP, TCP/IP, H.320, ISDN (PRI, BRI), SS7, FXO/FXS, Loop Dial, CAS, E&M, HDLC, PPP, LAPD, ENUM, RADIUS, SNMP, DAIMETER etc.)
• Experience in Project Management and Agile process.
• Telecommunication Application and Service Delivery Platform
• Experience of working to ISO or CMM standards and with requirements engineering, and unit /system testing

TECHNICAL SKILLS:

Operating Systems: Linux, Solaris, Unix, Windows, Cisco IOS, AOS

RTOS: VxWorks, REALX

Hardware platforms: PPC(MPC 8248/8272), Pentium, AT 3/486, x86/186, x8051

Languages: C, C++, Shell, HVB, Tcl/Tk, x86 Assembly, 8051 Assembly

Domain Knowledge: IMS, SIP, VoIP & IP Networking, SS7, ISDN, PSTN (Telecom Switching systems), CDMA, 1XEVDO, and Real-Time Embedded based systems MGCP, MEGACO, SIGTRAN, GSM, 3G, and DECT, PacketCable2.0, TCP/IP, DHCP, DNS, HTTP, FTP/TFTP, etc

Tools: HPQC/ALM11, JIRA, TORNADO IDE, Eclipse, CAD-UL, KEIL C Cross compilers, Clear case, CVS, Fanfare SVT, Ceibo - Debugger, GDB, GCC, D-Scope, CodeTap, etc.

Domain specific: EXFO, Empirix, IRIS, IXIA, Broadsoft, Adtran IAD, ACME SBC, ARRIS, SIPp, Asterisk, Openser, OnDO, Ethereal, Delta H.320 Analyzer, H.261 Analyzer, H.263 Analyzer, Radvision ECS Gatekeeper, GNU GK, Polycom Path Navigator, Radvision ViaIP Gateway, Radvision ViaIP-100 MCU, Polycom MGC-25 MCU and Gateway, Tandberg endpoints, Sony endpoints, Polycom phone

PROFESSIONAL EXPERIENCE:

Sr. Specialist/Consultant/Architect

Confidential, Mount laurel, NJ

Responsibilities:

• Developed end-to-end Product Architecture, Proof of Concept (PoC) validation and successfully rolled out the product for commercial use.
• Led Execution strategy, design, planning, Integration of development and test effort
• Lead consulting engineer with responsibility to build various teams, mentor teams, certify and coordinate with Vendors, and Technically manage resources
• Developed end-to-end Product Architecture, Proof of Concept (PoC) validation and successfully rolled out the product for commercial use.
• Led Execution strategy, design, planning and of development and test effort
• Lead consulting engineer with responsibility to build various teams, mentor teams, certify and coordinate with Vendors, and Technically manage resources
• Actively contributed to the Architecture, Engineering, Integration, Validation, and . successfully rolled out the product for commercial use
• Led Test strategy, planning and execution
• Lead engineer with responsibility to product and vendor
• Developed end-to-end Solution Architecture, Proof of Concept (PoC) validation and successfully rolled out the Solution for commercial use.
• Execution strategy, design, planning and leading development and test effort
• Lead consulting engineer with responsibility to build and certify the solution
• Execution strategy, design, planning and leading development and test effort
• Lead consulting engineer with responsibility to build various teams, mentor teams, certify and coordinate with Vendors, and Technically manage resources
• Lead consulting engineer with responsibility to build various teams, mentor teams, certify and coordinate with Vendors, and Technically manage resources
• Performed Confidential core voice network live debug, Broadsoft servers upgrade, downgrade, configuration, provisioning and troubleshooting
• Configuration of Realms, Session Agents, SIP Interface, Local Policy, Media pools, Transcoding, Media Latching.
• Implementation of HMR manipulations
• Extern-policy server configuration for QOS interface
• Installation, Integration and validation of brand new TCU and NPU cards
• Patching, backup, restore Configuration
• Interop validation with DOCSIS, Metro-E networks
• Interoperability testing Broadsoft, SevOne, Adtran, and Edgewater 4550 servers
• Actively involved in the development of Automation Framework.
• Developed scripts for Class-5 Voice features Testing in Hammer FX TDM and used for subsequent s.
• Developed scripts for SIPp tool for Load testing
• Lead and mentored the teams for the Architectural design and development Setup a successful offshore test model
• Execution strategy, design, planning and leading development and test effort
• Lead consulting engineer with responsibility to build various teams, mentor teams, certify and coordinate with Vendors, and Technically manage resources
• Execution strategy, design, planning and leading development and test effort
• Lead consulting engineer with responsibility to build various teams, mentor teams, certify and coordinate with Vendors, and Technically manage resourcesActively contributed to the System Architectural design, Requirements collection and analysis, product specification and High-level design
• Set up complete VoIP development environment and test beds
• Developed Test plan and Test cases specification, design, and execution.
• Team building, leading the development and QA team and setting up VOIP Infrastructure.

Technical Manager

Confidential

Responsibilities:

• Resolved the CA Issues of Natural Access CG series products and provided sustenance support for feature enhancement.
• Mentored the team members and problem root cause analysis

Tech Lead Engineer

Confidential

Responsibilities:

• Automated the system and regression test suite of RNC (BSC), RN (BTS), PDSN, EMS elements of Airvana 1xEV-DO CDMA system
• Set up complete automation development environment and test beds
• Team building and driven the Automation effort by mentoring the team
• Automated the MXS-SBC system and regression test suite using Fanfare SVT
• Set up complete automation development environment and test beds
• Interop with Cisco Call Manager 4.x
• Developed Test plan and Test cases, and lead the QA
• Team building and driven the Automation effort by mentoring the team

Sr. Architect/Specialist

Confidential

Responsibilities:

• Actively contributed to the System Architectural design, Requirements collection and analysis, product specification and High-level design
• Design and implementation of Gateway call control, ISDN, Device drivers, and V.35 Software Modules.
• Set up complete VoIP development environment and test beds
• Developed Test plan and Test cases specification, design, and execution.
• Team building, leading the development and QA team and setting up VOIP Infrastructure.Actively contributed to the System requirement collection and analysis, product specification and definition, architectural design and HLD design and coding
• Set up complete development environment and test beds
• Team building, leading the development and QA teams and setting up VOIP Infrastructure.
• Proactively contributed in System Architectural design and requirements collection.
• Developed Test plan and Test cases specification, design, and execution.
• Mentored and Lead QA Teams

Executive Engineer

Confidential

Responsibilities:

• Actively contributed to the feasibility study, Architectural design and development of Semi rugged Automatic Telephone Exchange
• Development of SS7 stack
• Conducted feasibility study, Requirements Analysis, and prepared Architectural design and development.
• Design and implementation of the GW architecture.
• Requirements Analysis, feasibility study, Architectural design, development and implementation of ISDN PABX.
• Successfully developed and implemented ISDN-PABX and got certified by the TEC (Telecommunication Engineering Center) standard body.
• Hardware board design and Software Architecture, and protocol stacks for the following modules (Platform: 8051, x86, x186)
• ISDN Call processing design and development
• ISDN PRI (Primary Rate Interface) Line card design and implementation
• ISDN BRI (Basic Rate Interface) Line card design and implementation
• CAS-MFR2 E1 card design and implementation
• Line Card design and implementation
• Loop Dial (trunk) design and implementation
• E&M (Trunk Card) design and implementation
• High Availability software design and implementation
• Digital Switch and Conference card design and implementation
• DTMF & MFR card design and implementation
• O&M and Test Subsystem
• Successfully integrated calls with OCB-CSN, LUCENT 5ESS, MAX exchanges.