Ubaid Rehman

Experience

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  Pakistan Telecommunication Company Limited

  Aug 2005 - Jul 2007

  Network Engineer

  As a Network Engineer in PTCL, I was responsible for the Network Management, Operation & Maintenance of Networks, and Configuration of Network Devices. I got experience in routing protocols like RIP, OSPF, EIGRP and BGP. I gained expertise in routed protocols (IPv4 and IPv6), VPNs, LAN Switching, WAN Circuits and monitoring tools (MRTG, Nagios). I had professional customer interaction via various channels including telephone, e-mail and face-to-face meeting. We provided around the clock support for our valued customers. Show less

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  KTH Royal Institute of Technology

  Sept 2008 - Feb 2009

  Network Engineer

  In High Definition Valley (HDV) project, we expanded the Swedish Silicon Valley Link (SSVL) research network with 10 Gigabit Ethernet (GE) links to KTH/Kista - KTH/Valhallavägen - KI/Solna- Karolinska/Huddinge. We developed and deployed a full high definition (HD) video conference solution by using open source router (Bifrost). We evaluated several video conferencing tools and found the most suitable deployment. For monitoring network devices (routers, switches, servers and hosts) and inbound/outbound traffic behavior, Nagios and MRTG were implemented in this project. Show less

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  Alcatel Lucent Enterprise France

  May 2009 - Sept 2009

  Internee

  In Alcatel Lucent Bell Labs, I had my internship for 5 months. During this internship, I worked on a project “Analysis of Inter Wi-Fi Access Points Seamless Mobility” in Triple play Wireless Networks (TWN) department. In this project, I computed results from data collected at different sites in Paris city. The objective is to assess if a mobile service could be offered based on the existing coverage. I evaluated the average number of APs in each dataset, measure the signal strength of APs, number of candidate APs, channel utilization, status of APs deployed by operators and observed the possibilities for a fast and seamless handover. Finally based on analysis, observations and results, I concluded that fast handover and seamless mobility in such environments is possible or not. Show less

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  IMDEA Networks

  Oct 2009 - Sept 2010

  Research Assistant

  In IMDEA Networks, I worked on several European Projects as a Research Assistant. I focused on “Inter-technology Handover with Proxy Mobile IPv6”. Proxy Mobile IPv6 is a network-based mobility protocol where the mobility signaling is performed by a network entity on behalf of the mobile node. The current specification of PMIPv6 is limited to basic operations such as registration, de-registration and tunnel management of the mobile node. However, it does not define protocol operations for flow mobility, multi-homing, optimal routing and inter-technology seamless handovers. In this project, we highlight technical issues related to inter-technology handover in PMIPv6 domain. Then we discuss different proposed mechanisms to solve these issues. Finally, we evaluated these mechanisms and pointed out the pros and cons of each proposal. Show less

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  COMSATS Institute of Information Technology

  Aug 2011 - Aug 2016

  Lecturer

  As a faculty member in COMSATS Institute of Information Technology Islamabad, I taught different computer science courses. Apart from teaching, I have been a member of several committees where we performed tasks related to curriculum, students counseling, performance improvement and sports activities. Being a member of Final Year Projects committee, we evaluate the final year students’ projects. As a member of Counseling Committee, we help students in their administrative, academics, social and personal issues. Show less

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  COMSATS University Islamabad

  Sept 2015 - now

  Currently I am on duty as a Network Administrator in COMSATS Institute of Information Technology Islamabad. My responsibilities include management of LAN and WAN connectivity of the campus, wired and wireless infrastructure inside the campus, VLANs management, inter VLANs routing, STP and CISCO ACS. I am leading Cisco Local Academy, where we train and supervise students for professional certifications.

  • Network Operations Manager

    Sept 2020 - now

  • Network Engineer

    Sept 2015 - Apr 2023