EXPLORE

Amazon Web Services Apache Linux Nginx System Admin
Profile cover photo
User Avatar

Ariful I.

@himelaro5

5.0
12

4.3

4.3

92%

VoIP Engineer | System Administrator | DevOps

$40 USD / Hour

Flag of

Bangladesh (9:52 AM)

Joined on November 19, 2011

1 Recommendation

$40 USD / Hour

Are you looking for an experienced professional to manage your VoIP systems, optimize your server infrastructure, or streamline your DevOps workflows? With over 10 years of hands-on experience in Linux system administration, cloud platforms, VoIP technologies, and DevOps tools, I deliver solutions tailored to your business needs. I specialize in VoIP system deployment and management, ensuring high availability, scalability, and superior call/SMS delivery performance. Whether it's configuring Asterisk, FreePBX, or SIP-based systems, I've got you covered Key Highlights • Operating Systems: Expert in managing Linux distributions like CentOS, Ubuntu, RHEL, Debian, Fedora, and more. • VoIP Solutions: Configuration and troubleshooting of Asterisk, FreePBX, and SIP systems for seamless communication infrastructure. • Cloud Platforms: Skilled in AWS (S3, EC2, EBS), Rackspace, Digital Ocean, and Linode for scalable, secure hosting solutions. • High Availability: Load balancing, clustering, MySQL replication, and failover setups for uninterrupted services. • DevOps & Automation: Docker, Kubernetes, CI/CD pipelines, and tools like Jenkins and Ansible for efficient deployment and scaling. • Monitoring & Security: Implementation of Nagios, Zabbix, and OSSEC for proactive system monitoring and threat detection. • Storage Solutions: Expertise in ZFS, GlusterFS, and other storage systems for reliable data management. Why Work With Me? • Proven Track Record: Over $300K earned, 53 completed contracts, and 9,050 hours worked on Upwork. • Versatile Expertise: Whether it's a one-time setup or ongoing support, I adapt to your needs with precision. • Client-Centric Approach: I prioritize communication, and understanding your requirements to deliver results that exceed expectations. • Remote Work Professional: Experienced in managing global clients and infrastructure, ensuring smooth operations across time zones. If you need reliable, scalable, and efficient solutions for your VoIP, system administration, or DevOps projects, let’s discuss how I can contribute to your success. Let's bring your vision to life. Contact me today!

Verifications

On time

100%

On budget

100%

Accept rate

100%

Repeat hire rate

17%

Portfolio

Portfolio

3214209
98276
98274
98272
3214209
98276
98274
98272
5.0 · 12 Reviews
12 Reviews
B

Former Client (inactive)

5.0

$75 USD

9 years ago

Project for himelaro5

Perfect contact, exactly what i was searching for!

Share

User Avatar
Flag of

Shay M.

5.0

$250 USD

10 years ago

Project for himelaro5 -- 2

Thanks again for a great job.

Share

User Avatar
Flag of

Shay M.

5.0

$250 USD

10 years ago

Project for himelaro5

Great work. Very responsive and professional. High degree of technical knowledge.

Share

G
Flag of

Tim M.

5.0

$50 USD

10 years ago

Project for himelaro5

Excellent, solved everything we needed within hours!!

Share

Experience

DevOps Engineer | VoIP Systems | Kubernetes & Cloud Infrastructure Expert

Nov, 2022 - Oct, 2023

11 months, 1 day

AMD Telecom S.A.

Nov, 2022 - Oct, 2023

11 months, 1 day

As a DevOps Engineer at AMD Telecom, I was responsible for deploying and maintaining highly available VoIP systems and services in production environments. I worked with Kubernetes, Docker, and GitOps tools, ensuring seamless operations for FreeSwitch and Kannel, which are essential for call and SMS delivery services. My role included troubleshooting, system administration, and streamlining deployment processes, driving efficiency in our cloud-based infrastructure.

Flag of

Baarerstrasse, Switzerland

Nov, 2022 - Oct, 2023

11 months, 1 day

System Administrator(Linux/Windows)

Jan, 2018 - Sep, 2021

3 years, 7 months

Buurst

Jan, 2018 - Sep, 2021

3 years, 7 months

• Responsible for the proper daily troubleshooting operations of the Linux and Windows systems, including regular and scheduled tasks. • Performing installations, maintenance, upgrades, patches. • Troubleshooting emergencies/incidents. • Supporting production environments leveraging AWS, Azure, and VMWare solutions; • Participating in post-mortem and root cause analysis; Technology Using: CentOS, Software RAID, AWS, Azure, VMWare, ZFS, Apache, Nginx, MySQL, Apache NiFi, Monit.

Jan, 2018 - Sep, 2021

3 years, 7 months

Certifications

Linux Kernel Programming - Level 1

Linux Kernel Programming

Linux Kernel Programming - Level 1

Linux Kernel Programming

Linux Kernel Programming - Level 1

Linux Kernel Programming

F

Foundation vWorker Member

Registered Users

Total Jobs Posted

Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)

Copyright © 2026 Freelancer Technology Pty Limited (ACN 142 189 759)