JOHN RIEK

P: 614-***-**** acvwnn@r.postjobfree.com

Professional Profile

Five years of VOIP experience, including PBX and handset deployment and administration. Experienced with deployment, configuration and interoperability of a variety of VOIP devices. Have extensive knowledge of the Asterisk PBX and the Cisco Call Manager.

A result oriented professional with 15 years of experience in Project Management and R&D in the IT sector.

Ten years experience in developing applications and managing projects in the hospitality industry.

Easily adaptable to change with an eagerness toward learning and expanding capabilities.

Good communication, collaboration & team building skills with proficiency at grasping new technical concepts quickly and utilizing the same in a productive manner.

Linux user and enthusiast since 1998.

Work Experience

System Development Manager (HSIA Team Manager) Dec 2009 to Mar 2015

NTT DOCOMO interTouch - Singapore

Managed HSIA(High Speed Internet Access) projects.

Scrum Master for a team consisting of 8 members( 4 QA / 4 Developers).

Responsible for moving team from waterfall to an agile framework.

Motivating the team to produce a potentially shippable product

Successful in having the team produce releases at a more frequent pace.

Assisting sales team with responding to RFPs by providing product technical guidance.

Performed QA testing for mobile applications (Functional, integration and regression).

Performed full regression testing of the HSIA product in the staging environment for each software release.

Performed integration testing of the HSIA product with multiple business partner products.

Scrum team used Selenium/Robot for automated testing of the HSIA product. Jenkins was used to execute the automated tests with each software build.

Provide pre-sales support and technical guidance to the sales team for multiple products.

Created training material for Support and Call Center employees on features of each software release.

Responsible for evaluating firewalls and bandwidth management/shaping devices for the HQ office and production environments.

Created a prototype using WebRTC and an asterisk PBX to demonstrate how call center costs can be reduced by using these technologies to place calls at a reduced cost.

Systems Development Manager (IP Telephony Team Manager) Jul 2008 to Nov 2009

NTT DOCOMO intertouch - Singapore

Managed an eight-member IP telephony development team that developed applications interfacing with Asterisk and Cisco PBXs. Team developed XML applications for Cisco phones. Types of applications included weather, airline, hotel information and hotel services.

Oversaw the installation and configuration of asterisk PBXs in Docomo Intertouch regional offices.

Provided technical support for asterisk systems residing in the United States.

Responsible for creating VOIP hardware solutions/configurations and testing the individual devices.

Performed SIP compatibility testing of phones and gateways with the asterisk pbx.

Provide pre-sales support and technical guidance to sales team.

Software Engineer Mar 2005 to Jul 2008

Percipia Networks - Columbus, Ohio USA

Created a low cost asterisk pbx solution for the company's hospitality product.

Responsible for research, development, and integration of the Asterisk PBX. The

Asterisk PBX is a C based open source PBX.

Programmed additional functionality to the Asterisk voicemail system to make it more hospitality friendly.

Worked closely everyday with an off-shore India development team.

Designed a web interface for administrating the Asterisk PBX.

Integrated Cisco Call Manager and Nortel PBX systems with Asterisk Voicemail. Wrote a Perl socket program to send MWI notifications to phones residing on the Call Manager.

Experienced in configuring/troubleshooting the Cisco Call Manager and Cisco Phones.

Experience using, administering and installing MySQL.

Experience installing the asterisk pbx in hotels, call centers, and small businesses.

Software Engineer Jan 1999 to Dec 2004

AGT International - Columbus, Ohio USA

Created Interactive Voice Response (IVR) professional service applications on the Avaya platform (Conversant, IR) for schools, financial establishments, government agencies, hospitals, and retail companies.

Wrote DIPs(Data Interface Processes) in C and Pro*C to interface with mainframes and Oracle. Majority of the IVR applications interfaced with a local and/or remote Oracle database.

Types of applications developed: course registration, outdialing, faxing, surveys, credit card account inquiry, auto loan/lease account inquiry, flexible benefits enrollment, and teacher absence reporting.

Used Nuance speech engine for speech recognition projects on the Avaya platform.

Wrote administration tools and created reports using C and Unix shell scripting.

Developed auto loan/lease account inquiry applications for Ford Credit. Originally used CLEO's TN3270 and LU6.2 APPC software to communicate with backend IBM mainframes. Changed the interface to a TCP/IP socket interface. Responsible for maintaining and updating applications.

Developed web applications on an IIS 6.0 server for Chicago Public Schools(CPS) using ASP. Internet application provides schools the ability to report teacher absences and view the status of the filling of the absence with a substitute. Intranet application provides the Substitute Services department with the ability to administer teacher absences and substitute availability.

Developed Visual Basic 6.0 application for CPS Substitute Service agents to administer teacher absences and substitute availability. VB application also created reports that contained historical absence data using Crystal Reports. The web applications and the VB application used ADO to communicate with an Oracle database.

Attended customer on-site meetings regularly to discuss project requirements/designs and present prototypes.

Technical Skills

Platforms : Linux(CentOS), Unix, MS Windows XP/7, Mac

Databases : MySQL, Postgres, Oracle

MS Software : Microsoft Office Suite, Visio

Languages : C

Perl, Python

Visual Basic, ASP

Javascript

VOIP : Asterisk PBX (5 years)

SIP trunking, SIP protocol, SIP phones,

VOIP gateways, Cisco Call Manager, Nortel PBX,

MPLS, Cisco phones(SIP, SCCP)

Project Management Software : Clarizen, Pivotal Tracker

Continuous Integration : Jenkins

Source Code Repository : Git, SVN

Patch Management : Puppet

Education and Certifications

Bachelor of Science, Computer and Information Science 1998

The Ohio State University - Columbus, Ohio, United States

Cisco Certified Network Associate (CCNA) – September 2015

PMI Agile Certified Practitioner (PMI-ACP)

Certified Scrum Master (Scrum Alliance)

Prince 2 Foundation

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