Senior Staff VOIP Engineer Resume

SUMMARY:

High Light:Architect, Development Manager, Project leader, Lead designer for a couple of distinct unified VOIP/multimedia communication product families, some of them developed and built from concept.

TECHNICAL SKILLS:

Technology and Tools: VOIP audio/video Telephony (TelePresence) technology and architecture, and associated IETF standards/drafts in SIP/SDP, AS - SIP, H323, IP Security, Qos (IntServ/DiffServ/Per Hop behaviors), RTP/RTCP, etc.

Real time multi: tasking software design

Languages: C++, Java, C, Assembly, XML

PROFESSIONAL EXPERIENCE:

Senior Staff VOIP Engineer

Confidential

Responsibilities:

General standard AS-SIP signaling (100rel, call transfer, session timer, …)
Call priority and preemption
Standard BFCP/content sharing for AS-SIP
ANAT
Standardized the Group Series media encryption and added crypto-suite support in the SRTP lib
Standardized DSCP for AS-SIP

Senior Technical Leader

Confidential

Responsibilities:

As Cisco TelePresence Product Architect, provide architecture leadership for the Cisco TelePresence product in the Sip and call signaling, Cisco Unified Communication Manager Interface, QoS and Cisco Medianet integrationIP signaling and media Security, Native video interoperate between all Cisco video products (including immersive TelePresence, CUCM UC endpoints, Tandberg endpoints and VCS call agent), Next generation TelePresence conference architecture with Simulcast/Multi-stream capability, video media error resilience, B2B (Business to Business), IPv6, ...

Development Team Manager/Senior Technical Leader

Confidential

Responsibilities:

As the Confidential One call processing architect and the Confidential One call processing team manager, led the Confidential One product architecture and the call processing team, successfully motivated the team and built the product from concept through multiple releases.
Confidential One is a fully distributed, multi-site Sip Key system and PBX with advanced features including mobility. Lead the integration with multiple service providers (e.g. Verizon, Level 3, Confidential, etc.). It was once the seventh Cisco advanced technology announced to the Wall Street and industry.
At the same period of time, I designed, coded, and implemented the Sip stack, Sip proxy, Confidential One call processing software infrastructure based on Linux, and almost all Sip/feature call flows. This product reached its $200M revenue within 3 years.

Technical Leader

Confidential

Responsibilities:

Architected Sip for the Cisco Unified Call Manager (CUCM) with full Sip call flows supporting all existing CUCM PBX features, including the Line side shared line feature.
Developed, and prototyped the intelligent endpoint concept for Telephony PBX system and its service framework with a couple of patents. The intelligent endpoint concept was eventually successfully built into the Confidential One product after year 2004.

Senior Engineer to Technical Leader

Confidential

Responsibilities:

Represented my organization inside Cisco to define multimedia architectural roadmap across multiple product families with multiple Confidential ;
Assigned to represent business unit in exploring offshored engineering development (traveled to China to meet with other Confidential )

Senior Software engineer

Confidential

Responsibilities:

ISUP prime for WIN (Wireless Intelligent Network) service node.
Team Leader for a successful IS41 WIN applications server, IS41, TCAP, SCCP standards are highly involved.
Personal Number Service software design.
Team leader for a CDMA circuit data project.
Research and high level design of CDMA circuit data.

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