General responsibilities:• Provided Information Technology solution to customers• Performed maintenance task to customer information system and infrastructure.Achievements:Security Company• Customized module of Java written, open source, GPS tracking application server, and developed client desktop application using .NET C#. Server part were implemented on FreeBSD, MySQL server but later moved to MS Windows Server and MS SQL.• Performed hardware and software upgrade of the Monitoring center. Eliminated single point of failure by implementing 1:1 redundancy architecture. Separated client and server application role of the Monitoring Software. Operating system upgraded from MS Windows XP, Paradox DB to latest system requirement of the Monitoring Software where as Windows Server 2008R2, and database migrated from Paradox DB to MS SQL 2005 server.Agricultural company• Substantially improved internet connection quality of the agricultural company by installing Point-to-Point 802.11n, 5.2GHz wireless devices over ~35km (~21.7 mile). Very stable, reliable internet connection and 15mbit/s bandwidth is delivered.

Achievements:• Developed 5 years of business plan, presented it to over 10 potential investors.• Worked with satellite hub industry's top suppliers and evaluated most effective hub station which fulfills current and new market segment requirement. Received very attractive offer where consumer CPE cost reduced 4 times. • Received reasonable offer from satellite operator after long time negotiation process which could help to reduce meantime expense immediately 3 times .• Successfully started offering new live broadcasting service via satellite for TV domain, event organizers without investing to additional equipment. This 1-4 days occasional service earned more than monthly income of a remote site.

General responsibilities:• Performed periodic maintenance tasks on Active Directory, Microsoft Exchange, MS SQL, Application server with MS Windows 2008R2 operating system.• Used VBScript for solving domain wide issues such as registry, file permission, perform global operations for the user accounts or computer configuration.• Applied Group Policy for domain users and computers. • Analyzed problems on the servers performed troubleshooting procedure.• Performed test for the patch of Core banking Application.• Created report queries on Oracle Database using TOAD tool according to the request of the bank employees.• Provided technical support to the front-end office employees.• Informed bugs to JIRA site of the core banking application supplier and got hot-fixes for bug.Achievements:• Provided technical support to front-end staffs during MostMoney service implementation phase. • Worked with developer company as IT supporter of the bank. Performed test, migration,and training for the newly purchased fixed asset software. Branches could manage their fixed assets themselves after successful implementation of ASP .net based GreatFA web application.

General responsibilities:• Provided technical solution for projects and implemented it.• Took ownership of the satellite and wireless network stability and availability.• Installed and maintained DNS, Email, Web, MySQL Database servers on FreeBSD OS.• Performed administration tasks on satellite hub station, worked with technical support engineer of satellite hub supplier.• Trained newly enrolled network engineers.• Prepared technical solution and documentation for bids.• Analyzed wireless and satellite frequency bandwidth using spectrum analyzer. Worked with technical support team of satellite service provider for network problem solving.Achievements: • Assessed technical specifications for procurement and company bought two SkyEdge hub stations with cost of $1M. Worked as local technical supporter of two satellite hubs installation task.• Worked as local technical supporter during UAT of the cellular network backbone. One of mobile operator made contract for initial 10 remote sites after successful Abis pilots.• Were in charge of all technical aspect of USAID project Last Mile Initiative (LMI): Piloting Voice over Wireless Networks for Herder Communities. Company received financial aid from USAID and successfully created voice service network for 4 rural areas.• Developed solution for connecting voice networks of the two satellite hub stations to local mobile and PSTN operators. After successful technical implementation company saved over $10k and call cost per minute reduced 25% percent.

General responsibilities:• Designed and implemented PtP, PtM wireless networks.• Performed remote site surveys for 802.11a wireless networks.• Installed wireless access points, CPE, xDSL modems and configured PPTP, IPIP, DHCP, static IP address, NAT, firewall filter rules, static routing, bandwidth queue, bridging on MikroTik wireless routers using telnet, SSH terminals.• Analyzed wireless network issues performed troubleshooting using tools such as Wireshark sniffer, Bandwidth Tester, Syslog and designed network architecture, documented network diagrams with Microsoft Visio.• Did network monitoring using WhatsUp Gold, SolarWinds Network Performance Monitoring tools and maintenance tasks ( RouterOS scripts for scheduled jobs)• Provided technical support to customers via phone,e-mail and solved network problems.• Installed VSAT (Very Small Aperture Terminal) equipment at countryside and extended network using 5.2 GHz wireless equipments.• Developed desktop applications for problem solving such as correcting CDR file header using Delphi, capture file's statistic parser, etc.Achievements: • Installed, fixed over hundreds of wireless CPE and connected ATM, bank, supermarket branches to their head quarters' network using tunneling protocols to fulfill company's business plan.• Existing 802.11a outdoor wireless WAN with over ninety clients from various companies, including bank, supermarkets, etc., had instability and bandwidth issues due to poor signal quality, interference, and power source. I had involved in redesigning wireless network architecture, upgraded hardware of base stations, updated software of routers, expanded network capacity to improve stability.• Our proposal for procurement of "Creating LAN of organization" won in the bidding. Designed, implemented organization LAN for over 200 hosts using high capacity, Cisco Catalyst switches. Configured IP addressing, VLANs, access lists.