Zitel is a major Internet Service Provider (ISP) offering a wide range of services such as TD-LTE and Dedicated Broadband As part of the 4G/5G core team I: - Set up highly-available Kubernetes clusters from the ground up (including, loadBalancers, services, NetworkPolicies, etc)- Simulated 10,000 users connected to a 5G network with 10 Gbit/Sec traffic- Participate in creating and developing CI/CD pipelines- Transform applications into a containerized format (docker) for migration from VMs to a cloud enviroment - Write bash scripts for automating various tasks- Create Ansible playbooks for automatic virtual machine creation and configuration- Wrote other Ansible playbooks for automating small tasks such as installing packages, changing root password, making changes to existing configurations.- Develop and improve the monitoring system for the 5G lab based on Zabbix- Wrote python scripts to measure network traffic of servers and display them as part of graphs on Grafana- Set up infrastructure for the 5G team (DNS servers, Gitlab, LDAP, NFS, etc)- Analyze the current infrastructure and make improvements or corrections to the designs and the provisions.

Refact is a product design and management agency for news and media organizations- Wrote CI/CD pipelines on Gitlab CI/CD and GitHub actions for the development of WordPress websites,both for production and staging.- Migrated company’s repositories from Gitlab to Github.- Executed phpcs and js/scss linting procedures by utilizing GitHub Actions and Circle CI.- Managed servers running various services such as web servers and storage.- Efficiently deployed projects using Docker and constructed associated Docker images to optimize application delivery.- Pioneered the development of customized backup solutions using Bash scripting and securely stored them on DigitalOcean S3.- Acted as the sole on-call technical point-man for any technical problems regarding services.

Webramz is among the top 5 web hosting providers in Iran. Offering a variaty of services such as shared & dedicated hosting, Virtual Private Servers (VPS), Dedicated Servers and Cloud services.My main responsibilities: - Configure, deploy and troubleshoot Virtual Private servers (VPS) with KVM as the hypervisor- Configure and troubleshoot web hosting servers using cPanel/WHM- Attend to Level 2 and Level 3 technical tickets regarding VPS, shared hosting, email hosting and other services- Update and improve the Knowledge center documentation. Add new documentations as necessary.- Support and maintaining the backup system to ensure operationsAchievements: - Developed and expanded the server monitoring solution based on Zabbix - Added a log monitoring service for shared hosting servers using Syslog and Graylog as the UI- Reduced first-response time for tickets from 40 minutes to under 10 minutes (teamwork!)- Updated the previously outdated technical documentation and added new documentations to the knowledge center- Automated certain tasks using Bash- Wrote a tool with Python for automatic Premium domain lookup and price calculation- Wrote a script with Bash for automatic installation and configuration of Zabbix based on our requirements - Overall, left the servers in a better shape than I found them

- Set up the network for the entire office (Windows server R2 2012) Over 30+ nodes in the network including server, user PCs, NAS, printers, etc.- Created documentation for the entire operation of the network and its topology.- Created a database which included all the supplier's information and gave access to all users through the network. (Microsoft Access) - Acted as the helpdesk as well and resolved daily issues for users- Setup a automatic daily backup system from all users and stored it on the NAS- made further remote backups from the NAS