Umar Minhas Email & Phone Number

Punjab, Pakistan

• Infrastructure Management: Oversee VAS infrastructure, ensuring optimal performance and reliability in production environments.• Database Solutions: Design, deploy, and manage databases with replication and clustering for high availability.• Application Deployment: Deploy applications across multi-node environments using clustering tools for scalability.• Load Balancing: Configure HAProxy for efficient load distribution across multi-node applications.• Traffic Optimization: Manage Apache Kafka and RabbitMQ for seamless data flow and communication between services.• Telephony and IVR Services: Implement SIP trunking and configure Asterisk for IVR services to enhance communication.• SMS Gateway Management: Experience with SMS gateways like Kannel, Jasmine, and Simple SMS Gateway to manage messaging services effectively.• Caching: Set up Redis clusters for large-scale data caching.• Sigtran and SS7 Management: Handle traffic using Sigtran and SS7 protocol for telecommunications services.• Monitoring and Alerts: Implement server and service monitoring with Nagios Core and Prometheus, using Grafana for dashboard visualization.• Automation and Scripting: Develop Bash and Python scripts for automating backups, job scheduling, monitoring, and log analysis.• Linux Operations: Manage core Linux operations, including disaster recovery, troubleshooting, and root cause analysis.• Web Services Deployment: Deploy and manage web services using Apache and Tomcat to support robust web applications.• Containerization: Utilize Docker and Docker Compose for containerization, scaling containers with Docker Swarm.• Cloud Deployment: Implement and manage application deployments on AWS cloud-based operating systems, leveraging cloud services to enhance scalability and flexibility.

Pakistan

• Linux System Administration: Extensive experience with Linux-based operating systems, including virtualization using various hypervisors to create and manage virtual environments.• Linux containerization (LXC) using Proxmox• Containerization and Orchestration: Expert in Docker containerization for application scaling, including deploying services with Docker Compose and managing Docker Swarm clusters for multi-node billing systems.• Monitoring and Logging: Implemented and utilized Grafana, Prometheus, Promtail, and Loki for comprehensive server health monitoring and log analysis, ensuring system reliability and performance.• Infrastructure Automation: Automated infrastructure provisioning and configuration management using Ansible/Playbook, significantly reducing deployment time and increasing efficiency.• Web Services Deployment: Host web-based applications using Apache and Nginx, optimizing web traffic with HA-Proxy and proxy pass configurations.• Application Deployment: Deployed Java, Node, Laravel and React applications• SIP trunk and Asterisk configurations for IVR services,• Deploy and configure Kannel gateway for SMS services.• Database Administration: Deploy, Manage, Tune, Optimize Databases, Clustering of Database, Master slave replication of databases• Scripting and Automation: Developed automation scripts in Bash and Python for tasks including backups, job scheduling, and troubleshooting, enhancing operational efficiency.• Networking and Security: Configured and managed firewalls, IP tables, and utilized tools like Wireshark, TCP-dump, and ngrep for traffic analysis and troubleshooting.• Deep understanding of TCP, SMTP, HTTP, SIP, and SMPP protocols.• Project Management and Collaboration: Utilized Jira for task management and ticketing, and collaboration with developers to troubleshoot and resolve application bugs and performance issues.