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$10 USD / hour
$10 USD / hour
It's currently 1:32 PM here
Joined March 28, 2020
4 Recommendations

Khandker S.


5.0 (148 reviews)
$10 USD / hour
$10 USD / hour
Jobs Completed
On Budget
On Time
Repeat Hire Rate

Routing & Switching Network Engineer

I have been working in core network in BD largest ISP more than 6 years. I am CCNA and CCNA security [login to view URL] Cisco based network solutions are the most powerful side of me. I am expert in network simulation software like GNS3 , Cisco Packet Tracer, Riverbed Modeler. Core Technical Skills: ================== # Routing Protocol-- Static, OSPF, BGP, EIGRP, RIP. # Design and implement small, medium and large scale enterprise networks. # VLANs, Spanning Tree Protocol (STP), VTP, LACP, HSRP. #L2-MPLS,L3-MPLS # DHCP, GRE, IPSEC. Hands-On Experience: ===================== # Cisco Routers (NCS 5500, ASR 1006, 7606, 7604, 7301, 7206) # Cisco Switches(Nexus 2K, Nexus 3K, Nexus 7K, Catalist 2900 series, Catalist 3500 series, 4500 Series, Small Business SF-300) # Juniper Routers (MX 104, ACX 2200) # Mikrotik Router (CCR 1036, CCR 1072, 3011, RB 450) # Other Vendor devices (Netgear, BDcom, Huawei)
Freelancer Network Administrators Bangladesh

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Portfolio Items

Network Design for a software company of OMAN
Network Design for a software company of OMAN
CAN Network Design
CAN Network Design
Physical Diagram of Mt Helen Campus Australia
Physical Diagram of Mt Helen Campus Australia
Physical Diagram of CODEC
Physical Diagram of CODEC
Logical Diagram of Australian Based Company
Logical Diagram of Australian Based Company
Wireless IOT based system design.
IOT System design


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Showing 1 - 5 out of 50+ reviews
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$100.00 USD
fast, good communication, flexibal and did everything i asked for
System Admin Wireless Computer Security Cisco Network Administration
Flag of Lulu A. @lulu1278
9 days ago
$30.00 USD
Great guy must do work with him
Flag of Ray J. @eclipse786
10 days ago
$120.00 USD
On time and very detailed.
Flag of S S. @Shawn007407
1 month ago
$30.00 USD
Very professional and he is very clear with what he has to do. Definitely someone I can count on!
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Flag of Yassin R. @yrauna1
1 month ago
$100.00 USD
Detailed work on time and cooperative.
Flag of S S. @Shawn007407
2 months ago


Senior Support Engineer, Network Operation

Link3 Technologies Ltd
Mar 2014 - Present
I have to manage all over Bangladesh infrastructure containing more than 400 Routers (Cisco, Maipu, Mikrotik) and more than 700 Switches (Cisco, Netgear, BDcom etc).


Msc in Telecommunication Engineering

North South University, Bangladesh 2016 - 2019
(3 years)

Bsc in Electronics & Communication Engineering

East West University, Bangladesh 2010 - 2014
(4 years)


CCNA Security

I have done my CCNA Security certification.


I have done my CCNA certification.


Performance Analysis between SWCNT and Copper Antennas in High Frequency Region

A theoretical investigation is carried out to predict the radiation characteristics of single walled carbon nanotube (SWCNT) and bundled SWCNT antenna in the terahertz region. Simulated results indicates that radiation efficiency of a bundled SWCNT antenna is much higher than SWCNT antenna which is above 80%. In the terahertz region, the bundled SWCNT dipole antenna is found more efficient than that of copper dipole antenna.

Analysis of Bending and Human Body Effects on Sleeve-Badge Textile Antenna Performance

This article presents the effects of bending and human body interaction with Sleeve-Badge textile antenna on performance. The antenna resonance frequency has been notably shifted due to bending and the human body interaction. The simulated result indicates that there is a significant effect on SAR values under different bending conditions and the distance of the antenna from the human body.

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Top Skills

Network Administration 145 Cisco 140 Computer Security 95 Local Area Networking 72 Network Engineering 70

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