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Avatar do Usuário
$40 USD / hora
Bandeira do(a) BANGLADESH
$40 USD / hora
Atualmente, está 5:31 PM aqui
Ingressou em outubro 6, 2012
17 Recomendações

Mohammad Abu S.

@abusayed2004

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4,9 (95 avaliações)
6,7
6,7
87%
87%
$40 USD / hora
Bandeira do(a) BANGLADESH
$40 USD / hora
96%
Trabalhos Concluídos
98%
Dentro do Orçamento
93%
No Prazo
17%
Taxa de Recontratação

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.

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Avaliações

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Mostrando 1 - 5 de 50+ avaliações
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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 mais
H
Bandeira do(a) Marco P.
@Hadrons
há 9 dias
5,0
$100,00 USD
Very Proffesional ... I will hire him again !! Recomand
Linux
Software Architecture
Asterisk PBX
VoIP
MySQL
+1 mais
Avatar do Usuário
Bandeira do(a) Septimiu M.
@septimiumocanu
há 11 dias
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
Bandeira do(a) Marco P.
@Hadrons
há 13 dias
5,0
$220,00 USD
Very knowledgeable, prompt and professional. Expert knowledge of GOIP/FreePBX.
Asterisk PBX
VoIP
Avatar do Usuário
Bandeira do(a) David L.
@davidlambrix
há 21 dias
5,0
$120,00 USD
Cooperative and professional
Linux
Asterisk PBX
VoIP
I
Bandeira do(a) Ict I.
@ictinnovationsvw
há 2 meses

Experiência

Technical Engineer Cloud Deployment and Ops

Virtuozzo
dez. 2022 - jan. 2024 (1 ano, 1 mês)
● 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 - out. 2022 (3 anos, 3 meses)
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
dez. 2012 - jun. 2017 (4 anos, 6 meses)
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.

Educação

Msc in Cyber Security

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

BBA

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

Qualificações

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

Publicações

VoIP Business

Dhaka International University
Graduate paper

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