Profile

User Profile

MAMRAM, Israeli Defense Forces, 1994-1997 Network Analyst and Architect
I was part of a team in charged with the analysis of military scale networks, both WAN and LAN. I've been involved in highly complex network implementations of military networks, deploying cutting edge technologies of the time, such as: Fast Ethernet Switching, FDDI, ATM and others.
During my army service, I've participated in the following courses:
• Networking Basics
• Advanced Networking
• Novell Network Administration
• Windows NT Administration
• Networking Infrastructure
• Unix System Administration
• Advanced topics in Network Topology and Design

Technion, Israeli Technology Institute, Haifa 1997-1999 Network Manager
In charge of maintaining the Technion's computer center (TCC) collection of Linux and Solaris network servers.
• Maintenance of Linux and Solaris production systems
• Professional consulting to faculties network engineers and system
administrators with Linux/Unix tasks
• Intrusion testing and Security Assessment of Technion network connected
equipment and infrastructure

artNET experts, 1999-2001 Linux and Unix Expert
Part of the high end solutions and security team - in charge of implementing highly complex networking and operating system environments, where traditional IT methodology can't be applied.
• Maintenance of Linux and Solaris production systems at client
locations. Clients included: Golden Lines (012), Barak (013), Mizrahi
Bank, Sorek Nuclear center, Rafeal and other government institutions.
• Analysis of customer requirements and designing of high-end solutions
based upon Linux and Solaris infrastructures.
• Network and application security consultant – including security
assessments, code reviews and intrusion testing.
• Implementation of network security policies using CheckPoint products,
Cisco products and custom tailored Linux solutions.


m-Wise Inc, 2001-2006 IT Director
In charge of designing the company's world deployment of GSM services and deployment of GSM VAS platforms at company client locations. Customers included: Vodafone UK, Comtrend Taiwan, Omnitel Vodafone Italy, Unefon Mexico, Telefonica Spain and other cellular carriers around the world.
• Defining the company's IT infrastructure in order to achieve the
highest level of stability and remote management needs.
• Defining the company's network security requirements, including
interconnecting with other client network security systems.
• Implementing the company IT and security policies internally and
externally.
• In charge of a support team including 8 members between the years 2001
and 2003.
• Managing and support of m-Wise's ever growing customer base
installation, over 250 servers world wide.

Atelis plc, 2003-2007 CTO and Co-Founder
Chief Technology Officer for Atelis plc, a Start-Up in the telecoms industry. In charge of designing the company's product line and services line, based upon Open Source products such as Asterisk, GnuGK, SER and other VoIP and telecom related projects.
• Defining the company's product strategy for developing new products and
services.
• In charge of a development team of 5 programmers developing the
company's products and services.
• In charge of developing proof-of-concept solutions for VoIP services.
• Active coder of Asterisk based VoIP services.
• Active coder of FreeRadius AAA modules for utilization with 3rd party
platforms.
• Prime coder and architect of Tier-1 Carrier application platform (IN
services and operator assisted dialing services).
• Active member of the Asterisk Developers community and Users Community.

Additional Skills
• SAIR/GNU Certified Linux Professional (LCP)
• SAIR/GNU Certified Linux Administrator (LCA)
• SAIR/GNU Certified Linux Instructor (LCI)
• Digium Certified Asterisk Professional (dCAP)
• Asterisk Open Source PBX, GNU GK, Free Radius – Application level
programmer
• CheckPoint Firewall Administrator
• Cisco Network Administrator including BGP4 and High Availability
configurations.

Publications and Books

• “The VoiceCon RFP: Walking the path of the penguin’ – Can an open
source VoIP solution meet Allan Sulkin’s criteria? Of course! –
Published Aug 2007-11-19
• “AsteriskNOW – A Practical Guide” – Published by Publishing.

Personal mottos and public profiles

• Always strive to create a best-of-breed solution, even it means
breaking the bounds of conventional thinking.
• KiS-KiS: Keep it Simple, Keep it Stupid
• People are complex, solutions are simple.
• LinkedIn: http://www.linkedin.com/in/greenfieldtech
• Blog: http://www.simionovich.com

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