MD AZIZUR RAHMAN

• Delivered 1st/2nd-level LAN/WAN support and troubleshooting for multi-vendor environments within SLAs. • Installed and configured routers, switches, APs, and data center equipment. • Supported client network deployments and provided troubleshooting assistance. • Racked and stacked network and data center devices, including patching.

• Provided on-call contract support for network installation and maintenance. • Deployed and maintained MDF, IDF, and mini-clusters across Google data centers in Europe. • Executed rack cabling, installation, troubleshooting, and decommissioning per Google data center standards. • Resolved LAN/WAN incidents within SLAs, minimizing downtime and ensuring rapid service recovery. • Collaborated with cross-functional teams on integrations, redundancy, and large-scale deployments.

• Managed and maintained network operations for multiple vendors. • Racked and stacked routers, switches, firewalls, and APs in LAN/WAN environment. • Performed troubleshooting with regard to network connectivity, such as TCP/IP, DNS, DHCP, gateway, and subnet mask. • Installed and upgraded desktop/laptop operating systems and applications. • Managed Active Directory user accounts, groups, and permissions.

Provided first-level technical support to end-users. Responded promptly to tickets and service requests, ensuring timely resolution. Resolved technical issues related to laptops, printers, scanners, and other peripheral devices. Installed and troubleshot network devices (e.g., switches, routers, access points) as part of first-level support. Prepared and configured new desktops and laptops for deployment, including operating system setup.

Contributed to a high-priority IT rollout project at Roche Pharma’s Mannheim plant, delivering crucial IT support. Installed desktop computers at workstations, including full peripheral setups. Configured laptops according to company standards and security policies. Tested and verified the functionality of the organization’s applications on new systems. Ensured smooth deployment with minimal disruption to daily operations.

Installation and configuring of Cisco routers and switches. Monitor network infrastructure and troubleshoot issues relating to TCP/IP, DNS, DHCP. Installation and management of Windows desktops (WIN 8/ WIN 7). Implementation of Active directory, DNS, Firewall. New PC build-ups and troubleshooting.

Thesis: Automated CI/CD Pipeline Optimization & Security Enhancement. • Enhanced CI/CD pipelines in DevSecOps by integrating security controls without compromising efficiency. • Used SonarQube, Trivy, and OWASP Dependency-Check to identify vulnerabilities. • Developed an AI-driven module to generate actionable security recommendations. • Implemented Prometheus and Grafana for real-time monitoring of pipeline performance and health.

Communication and power engineering