Mehdi Hamidi Email & Phone Number

Tehran Province, Iran

Tehran, Tehran Province, Iran

Tehran, Iran

As a DevOps member at Paradigm Agency, my efforts have focused on preparing development environments based on requirements and proposing necessary services that fulfill these needs, such as S3 buckets for storage and Sentry for issue tracking. Since many projects have been engaged, I have worked on implementing distinct CI/CD pipelines and securing them for the Dev/RC and Staging phases using Jenkins, Docker and the Compose plugin for individual projects.

Tehran, Tehran Province, Iran

Tehran, Iran

• Infrastructure Management: Managed infrastructure for multiple projects including IranTalent, Kardix, IranSalary, WinaTalent, and Hirecamp.• Team Leadership: Directed and mentored the DevOps team while collaborating with various teams across the company.• Performance Evaluation: Developed an employee performance evaluation framework for the HR team.• User and Service Integration: Implemented a Multi-Zone FreeIPA system for user and service integration.• Log Management: Set up an integrated log management system for Kubernetes and other services using Rsyslog and the ELK Stack.• Kubernetes Management: Maintained and developed Kubernetes clusters, including deployments and services.• Image Resizing solution: Established an on-demand layer over the Minio service for resizing and transforming over 400k images, using the combination of Nginx Image Filter and the ImgProxy service.• Private Cloud and Hypervisor: Managed the cluster of OpenNebula as the private cloud infrastructure and VM instances in Hetzner Cloud.• CI/CD Pipeline Development: Developed CI/CD pipelines incorporating Jenkins, GitLab, and Kubernetes.• Database Clustering: Ensured high availability by clustering MySQL, MongoDB, PostgreSQL, ElasticSearch, and RabbitMQ.• HAProxy Management: Maintained and developed HAProxy rules across 5000 lines of configuration for all production services.• Project Migration: Managed the migration of the HireCamp project to IranTalent servers and containerized it using Docker.• VPN Management: Implemented a rule-based VPN using OCServ to provide employees with access to appropriate infrastructure resources.• HTTP Proxy Configuration: Configured rule-based HTTP proxy servers using Squid and TinyProxy for sending promotional emails via mail servers.

Dibache is a news aggregator service for the local community. I implemented the infrastructure from scratch for the services on three bare-metal servers, utilizing the following technologies:• OpenNebula as the hypervisor• Kubernetes• Jenkins• GitLab• HAProxy• Nginx• ELK Stack for data gathering and log management• pfSense cluster: providing both the router and DNS services• FreeIPA for user management• Sentry for error tracking

Tehran Province, Iran

Digikala is the largest e-commerce and resale service in Iran. As a DevOps member of the CDN team, my efforts have focused on developing and maintaining the 16 bare-metal edge pop-site nodes. Some of my achievements include:• Implementing a secure and resilient logging system using Rsyslog with the Relp plugin and the ELK Stack.• Maintaining Nginx (as the proxy module for the CDN service) to handle 12.5k RPS, resulting in a 400% improvement in performance and workload of the nodes.• Using Git and SaltStack, the centralized configuration management tool, for configuring DNS and Nginx.• Monitoring the state of the nodes using Zabbix and identifying performance bottlenecks by defining new metrics on the OS's network stack.

Pardis, Iran

Faranesh was an E-Learning service for the locals. Some of the achievements and the engaged technologies:• Migrate the mail server from DirectAdmin to iRedMail and Integrate with OpenLDAP.• Convert, add intro and outro, and watermark to the videos using FFMpeg and Shell Script.• Site Load Testing using Apache jMeter and PhantomJS.• Zabbix for monitoring.• Nginx and Apache as load balancer and web server.• Wowza for media streaming.

Tehran

Monitored and supported a Business Process Management project, collaborating with other teams using Jira Service Management according to the ITIL v3 framework. The support included managing and modifying Oracle Databases, which contained over 5 million records.

Tehran - Zaferanieh

DabaCenter is a startup that provides services for small businesses, such as internet access for restaurants and cinemas with captive portals, focusing on delivering these services as cloud solutions. As a junior SysAdmin, I began engaging with related concepts, such as virtualization with KVM and OpenNebula, web servers, log management, MySQL databases with Galera, and Linux filesystem concepts like GlusterFS.

Iran

Examination Center of Rahvar is the office in Iran responsible for assessing the credibility of car drivers' licenses in exceptional cases (such as physical disabilities or deficiencies), handling about 200 daily visitors. As the IT Manager, my duties included developing the infrastructure and systems and generating reports using SQL queries in SQL Server. In addition to managing security criteria at the network and OS levels, I developed applications in a Windows environment for registering and tracking visitor cases and issuing annual licenses for the examinig doctors across the country.

Bachelor’S Degree, Computer Software Engineering, 15.6

Activities and Societies: My thesis was studying about reverse engineering methods of software cracking. I also gathered a team of my.

High School, Mathematics, 17

Activities and Societies: Helli programming contest (4th)