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Khandker S.

@tonoy0167

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5.0
181
6.1
6.1
99%

Routing & Switching Engineer | CISCO|SOPHOS|HUAWEI

$30 USD / Hour
・
Flag of
Bangladesh (6:10 AM)
・
Joined on March 28, 2020
$30 USD / Hour
・
I have been working in core network of BD largest ISP & IIG more than 9 years. I am CCNA and CCNA security certified. So Cisco based network solutions are the most powerful side of me. Beside these, I am expert in configuring and maintaining firewalls, have expertise on 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) # Firewall (Sophos, Fortigate) # 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)
Verifications
On time
94%
On budget
95%
Accept rate
97%
Repeat hire rate
15%

Portfolio

Portfolio

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5.0 · 181 Reviews
Reviews
T
Working with Khandiker was a great experience. 100% Recommended! I hope we can work again on future projects. Good job!
Nikolaos P.
@threelittlepigs
•
Flag of
Thessaloniki, Greece
•
8 months ago
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J
Awesome work good job
Jeff A.
@jeff030
•
Flag of
Porcupine, Canada
•
11 months ago
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S
Everything was great, thank you.
Sarah H.
@sarahosseinih
•
Flag of
Toronto, Canada
•
11 months ago
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W
It was easy, convenient and comfortable to work with him. Great service would recommend him! Satisfied with his work and he did reply even after the job completed regarding the doubts!
Wow J.
@wowjackz99
•
Flag of
Muar town, Malaysia
•
1 year ago
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Very good knowledge of computer networks! Very good communication and always on time!
Roberto
@iinfinite8
•
Flag of
Tempe, United States
•
1 year ago
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Experience
Network Admin
Apr, 2023 - Present
•
1 year, 8 months
TSI, Canada
Apr, 2023 - Present
•
1 year, 8 months
Planning, Troubleshoot and Expansion of Network Infrastructure. * Sophos & Fortigate Firewall * Cisco NCS router * Cisco Catalyst 9500
Apr, 2023 - Present
•
1 year, 8 months
LEAD, Network & Security
Mar, 2022 - Jul, 2023
•
1 year, 4 months
TEAM GROUP
Mar, 2022 - Jul, 2023
•
1 year, 4 months
Worked as LEAD, Network & Security.
Mar, 2022 - Jul, 2023
•
1 year, 4 months
Assistant Manager, Gateway Operations (IIG)
May, 2021 - Mar, 2022
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10 months
Summit Communication Ltd
May, 2021 - Mar, 2022
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10 months
• Maintain IIG infrastructure • Client configuration, troubleshoot • Global Traffic Engineering • IPLC circuit, ITC circuit establishment • CDN node establishment and Maintenance
May, 2021 - Mar, 2022
•
10 months
Education
North South University
2016 - 2019
•
3 years
Msc in Telecommunication Engineering
Flag of
Bangladesh
2016 - 2019
•
3 years
East West University
2010 - 2014
•
4 years
Bsc in Electronics & Communication Engineering
Flag of
Bangladesh
2010 - 2014
•
4 years
Qualifications
NSE4
2022
Fortinet
Fortinet NSE4 Certified.
2022
CCNA Security
2016
Cisco
I have done my CCNA Security certification.
2016
CCNA
2014
Cisco
I have done my CCNA certification.
2014
Publications
Performance Analysis between SWCNT and Copper Antennas in High Frequency Region
IEEE
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
IEEE
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.
Certifications
P
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