DANISH S. HASAN

SUMMARY

Network/VoIP engineer with 8 plus years experience in data networking (Cisco routing/switching) telecommunications (NOC/Data Center) and voice technologies (VoIP/Unified Communications). Expertise in Cisco and Microsoft Unified Communcation:  Cisco Call Manager 5.x, Unity, Microsoft UM/OCS, VoIP codecs/protocols, IP-PBX and traditional TDM. LAN/WAN design and architecture, TCP/IP routing and configuration.  Additional skills in Unix (IBM-AIX/Solaris) and SQL/Oracle database.

 
CERTIFICATIONS

CCDA – Cisco Certified Design Associate: In Progress
CCNA – Cisco Certified Networking Associate
MCP – Microsoft Certified Professional

EXPERIENCE

Accenture: Chicago, IL/Mountain View, CA May 2006 – January 2009
Technology Consulting – Network Technology
Technical Lead: Microsoft Unified Messaging Deployment

Led design, testing, and deployment of Microsoft’s Unified Messaging VoIP solution in Accenture’s global infrastructure.

• Coordinated with senior Microsoft and Cisco engineers to design and architect UM solution.

• Resolved technical configuration and integration issues between Microsoft’s design and Accenture’s existing Cisco Call Manager infrastructure, including integration with NET VX voice switches.

• Audio codec conversion (G.729/G.723 to G.711)

• Signaling between voice gateways, CCM and UM;

• CCM routing, Call Admission Control, failover routing, SRST

• Managed off-shore (India and South America) resources helping with testing and documentation.

• Developed and maintained documentation for deployment teams and local support staff.

• Successfully integrated UM and Microsoft OCS into Accenture’s existing Cisco IPT .

• Developed thorough understanding of signaling protocols QSIG/MGCP/SCCP/H.323/SIP/RTP and audio codecs G.711/G.723/G.729 and

• Presented summary of CCM/UM integration to annual Accenture Technology Conference upon request of Senior Executive in charge of project.

• Conducted CCM/UM training of deployment teams

• Managed and configured Exchange 2003/2007 and AD test/production environments.
  
  Network Optimization Architect

Provided level four network services support, including rotating on-call pager, for network connectivity issues related to infrastructure proxies, caches, F5 load balancers, and Packeteer packet shapers.

• Resolved application teams application performance issues using WAN testing/analysis, Compuware AppVantage, Shunra, and Wireshark.

• Used Ixia traffic generator and packet shapers to analyze how VoIP and QoS issues are handled over MPLS

• Installed, configured, managed, and integrated F5 Load Balancers into Accenture's Data Center.

• Configured HP DL360series servers and Unix servers for various uses.

Motorola, Arlington Heights, IL June 2005 – Feb 2006
Network Engineer

• Coordinated nation-wide deployment of Cisco 6509 Catalyst switches to Nextel switching centers.

• Installed, configured, and tested Cisco 6509 switches

• Worked with Motorola and Sprint Nextel engineers on-site during migration and cutover.

• Provided support for OSPF and RIP routing problems.

• Configured routed and routing protocols such as TCP/IP, OSPF, BGP, and RIP.

• Configured T1/T3 and ATM connections on Cisco 6509 flexwan modules.
  

SBC, Chicago, Il Nov 2004 – April 2005
Data Services Network Engineer

• Handled multiple technical issues as Call Center Engineer, including customer technical support and carrier coordination.

• Configured client circuits (frame relay and ATM) and circuit hardware (CPE router and switch).

• Owned customer circuit issues from start to finish.

• Monitored circuits for alerts, errors, utilization, and proactively addressed issues.

• Documented all work done via multiple ticketing systems including Remedy.
  

DeVry University, Kansas City, MO June 2003 – Sept 2004
Adjunct Professor

• Taught university courses in the department of Telecommunications, and department of Electronics / Computer Technologies.

• Courses taught: “LAN And Internet Technologies”, “Network Operating Systems” and associated labs.

• Topics included OSI networking model, network topologies, data communication technologies, LAN/WAN/VPN, client/server, Internet connectivity, and data center design.

• Incorporated personal real world experiences to create a relevant learning environment.

• Conducted the lab component, covering hardware installation of AIX and Windows server, network topology, design and troubleshooting.

• Responsible for creating and updating class and lab syllabus with developing industry technology.

Cerner Corporation, Kansas City, MO Nov 2001 – Sept 2003
System Engineer

• Worked in a multi-node, multi-domain clustered environment supporting front and back-end Cerner applications running Oracle 7 and 8 on IBM AIX 4.x, 5.x.

• Performed AIX server upgrades, maintenance level installs (patches and service packs), backups.

• Performed Oracle installs, upgrades and support for database issues.

• Point of contact for IBM AIX support (adding users, filesystem issues, connectivity problems).

• Conducted remote server management using Citrix.

EDUCATION

• MS Computer Engineering, Networking and Telecommunications.
  University of Missouri–Columbia

• BA Biology, Minor Chemistry.
  University of Missouri–Kansas City

PUBLICATIONS

• Hasan, D.S; 2001, “Internet Based 911 Services”. – Unpublished Masters Thesis,
  University of Missouri – Columbia, p. 125

• Hasan, D.S; Chaudhry, G. M; 2000 “DPE Management in Telecommunications Networks”
  Proceedings, ISCA 13^th International Conference on Computer Applications in Industry
  and Engineering (CAINE-2000), p. 1-18

• Chronwall, B; Hasan, D. S; Sands, S. A; 1999 “Axonal Plasticity in the Rat Pituitary Intermediate Lobe Following Chronic D2 Receptor Modulation” Neuropeptides: Structure and Function in Biology and Behavior. Annals of the New York Academy of Sciences. Volume 897, p. 415-419