Picha ya jalada la wasifu
Sasa unafuata
Hitilafu katika kufuata mtumiaji.
Mtumiaji huyu haruhusu watumiaji kumfuata.
Tayari unamfuata mtumiaji huyu.
Mpango wako wa uanachama unaruhusu tu ufautiliaji 0. Boresha hapa.
Umefaulu kuacha kufuata
Hitilafu wakati wa kuacha kumfuata mtumiaji.
Umefaulu kupendekeza
Hitilafu katika kumpendekeza mtumiaji
Hitilafu fulani imetokea. Tafadhali onyesha upya ukurasa na ujaribu tena.
Barua pepe imethibitishwa kwa ufanisi.
Picha ya Mtumiaji
$40 USD / hour
Bedera ya BANGLADESH
$40 USD / hour
Ni saa 12:04 PM hapa
Alijiunga Oktoba 6, 2012
17 Mapendekezo

Mohammad Abu S.

@abusayed2004

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4.9 (95 hakiki)
6.7
6.7
87%
87%
$40 USD / hour
Bedera ya BANGLADESH
$40 USD / hour
96%
Kazi Zilizokamilika
98%
Kwa Bajeti
93%
Kwa wakati
17%
Kiwango cha Kuajiriwa Tena

Asterisk PBX, SIP, Linux, Cloud, DevOps, Security

I am currently seeking long-term remote and onsite job opportunities. With 13 years of experience, I have worked extensively with VoIP, Asterisk, cloud technologies such as AWS and OpenStack, Server security, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, Mysql, and Linux customization. I am also proficient in Python and PHP scriptwriting for IVR and AGI implementation on Asterisk. I have a team for support and further development. My expertise includes: - Linux - Hosting Systems Administration & Monitoring - Design and implementation of High-Performance SIP SBC - DevOps CI/CD - Service Optimization - Security Hardening - VoIP, Asterisk, SMS, Dongle, and FreePBX installation, configuration, and maintenance - WebRTC SIP Phone - Infrastructure Planning - Disaster Recovery - Shell Scripting - Capacity planning, application delivery planning - Network Troubleshoot, Spanning Tree, PVST, RSTP, HSRP, RIP, BGP, EGRP IGRP, MPLS - SAN Troubleshoot - GlusterFS, CEPH - NFS, SMB, ISCSI, SMTP - Linux performance tuning - MySQL, Oracle DB performance tuning - Laravel web application development - Web Security, Web benchmark, best practice - IPTV, Live streaming, VOD, FFmpeg - Raspberry Pi Please let me know if you have any questions or require further information.

Wasiliana na Mohammad Abu S. kuhusu kazi yako

Ingia ili kujadili maelezo yoyote kwenye gumzo.

Portfolio

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Kaguzi

Mabadiliko yamehifadhiwa
Inaonyesha 1 - 5 kutoka kwa 50+ - hakiki
Chuja hakiki kulingana na:
5.0
€400.00 EUR
Task performed professionally and in perfect timing, always available and supporting in fixing any unexpected problem. I strongly suggest to engage him because he is able to provide assurance about results both technically and in timing
Linux
Software Architecture
Asterisk PBX
VoIP
MySQL
+1 zaidi
H
Bedera ya Marco P.
@Hadrons
30 days ago
5.0
$100.00 USD
Very Proffesional ... I will hire him again !! Recomand
Linux
Software Architecture
Asterisk PBX
VoIP
MySQL
+1 zaidi
Picha ya Mtumiaji
Bedera ya Septimiu M.
@septimiumocanu
1 month ago
5.0
€550.00 EUR
Mohammad performed an amazing job, in perfect due time, with high professionality and very high competence. i do really suggest to hire him for professional tasks
System Admin
Linux
Testing / QA
Asterisk PBX
VoIP
H
Bedera ya Marco P.
@Hadrons
1 month ago
5.0
$220.00 USD
Very knowledgeable, prompt and professional. Expert knowledge of GOIP/FreePBX.
Asterisk PBX
VoIP
Picha ya Mtumiaji
Bedera ya David L.
@davidlambrix
1 month ago
5.0
$120.00 USD
Cooperative and professional
Linux
Asterisk PBX
VoIP
I
Bedera ya Ict I.
@ictinnovationsvw
2 months ago

Uzoefu

Technical Engineer Cloud Deployment and Ops

Virtuozzo
Des 2022 - Jan 2024 (1 year, 1 month)
● Technical Engineer at Virtuozzo, specializing in Cloud Deployment and Ops. ● Design and deploy Public and Hybrid cloud solutions for MSP, ISP, and Cloud Service Providers. ● Expertise in Infrastructure-as-a-Service and Application-as-a-service products. ● Proficient in Software-defined storage and software-defined Network Solutions. ● Managed Cloud Security and System Security. ● Plan to Deploy large-scale Hyper Converged infra for MSP, ISP

Senior Engineer Telecommunications

Nautilus SIP Pte
Jul 2019 - Okt 2022 (3 years, 3 months)
I am working as an Engineer in Telecommunications, in Cloud telephony service provider with Linux, SIP, Asterisk, Networking, and AWS. Keys achievement: Reduce customer complaints by 60%, with improved infra design. Removed bottleneck, Removed Single point of failure. Implemented Monitoring system, Automated server and service provisioning. Integration with Zendesk as voice channel provider, Design and Deployed WebRTC phone, Rearchitected AWS infra for cost optimisations.

Linux administrator

http://www.meshtechnologies.net
Des 2012 - Jun 2017 (4 years, 6 months)
Dealing with VoIP, Web development, vtiger integration, Call Center, And asterisk PBX, VoIP billing solution, a2billing install, customization, Server Rent and Commercial VoIP software like voipswitch, VOS3000, Mor-12, MVTS, install, configure and, support.

Elimu

Msc in Cyber Security

De Montfort University, United Kingdom 2021 - 2022
(1 year)

BBA

Dhaka International University, Bangladesh 2007 - 2011
(4 years)

Sifa

IELTS

British Council
2023
IELTS General Training

AWS Certified SysOps Administrator – Associate

Amazon Web Services Training and Certification
2020
https://www.youracclaim.com/badges/c9bddd3c-2214-4468-b5d5-f1d8ba1e668b

AWS Certified Solutions Architect – Profesional

Amazon Web Services Training and Certification
2020
https://www.youracclaim.com/badges/802e18ec-0750-4588-8965-23cf41f5947f?source=linked_in_profile

Chapisho

VoIP Business

Dhaka International University
Graduate paper

Wasiliana na Mohammad Abu S. kuhusu kazi yako

Ingia ili kujadili maelezo yoyote kwenye gumzo.

Udhibitisho

Wafanyakazi Huru Wanaopendelewa
Amedhibitishwa Kiutambulisho
Amedhibitishwa Kimalipo
Amedhibitishwa Kisimu
Amedhibitishwa Kibarua pepe
Facebook Imeunganishwa

Vyeti

preferredfreelancer-1.png Preferred Freelancer Program SLA 1 97%
freelancer_orientation.png Freelancer Orientation 1 95%
vpn-1.png VPN 1 83%
numeracy_1.png Basic Numeracy 1 83%
php_1.png PHP 1 82%
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