Samuel Ghebreab
Senior Infrastructure Engineer at NHS NEL CSU- Claim this Profile
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Bio
Dario Navaro
Samuel is one of the rare IT specialist that are able cover a very wide range of skills from VMWare Virtualisation to Cisco networking, with Microsoft servers, databases, Checkpoint firewalls in between. His knowledge in these fields are in-depth, gained over many years of system and network design, implementation and troubleshooting. But Samuel is much more than a top-level technical specialist. He is a team-worker par excellence. During over three years we worked together in a major technology refresh programme at the NHS, I found that he was always ready to help his team members and watch over their work, even when he was not asked to, ensuring the IT systems operated optimally. One of these guys you would want to watch your back as you go into battle, although the battles may have been only to do with the internal politics of a governmental agency. It was a privilege to have worked with Samuel - I much appreciated his technical cooperation as well as his friendship.
Dario Navaro
Samuel is one of the rare IT specialist that are able cover a very wide range of skills from VMWare Virtualisation to Cisco networking, with Microsoft servers, databases, Checkpoint firewalls in between. His knowledge in these fields are in-depth, gained over many years of system and network design, implementation and troubleshooting. But Samuel is much more than a top-level technical specialist. He is a team-worker par excellence. During over three years we worked together in a major technology refresh programme at the NHS, I found that he was always ready to help his team members and watch over their work, even when he was not asked to, ensuring the IT systems operated optimally. One of these guys you would want to watch your back as you go into battle, although the battles may have been only to do with the internal politics of a governmental agency. It was a privilege to have worked with Samuel - I much appreciated his technical cooperation as well as his friendship.
Dario Navaro
Samuel is one of the rare IT specialist that are able cover a very wide range of skills from VMWare Virtualisation to Cisco networking, with Microsoft servers, databases, Checkpoint firewalls in between. His knowledge in these fields are in-depth, gained over many years of system and network design, implementation and troubleshooting. But Samuel is much more than a top-level technical specialist. He is a team-worker par excellence. During over three years we worked together in a major technology refresh programme at the NHS, I found that he was always ready to help his team members and watch over their work, even when he was not asked to, ensuring the IT systems operated optimally. One of these guys you would want to watch your back as you go into battle, although the battles may have been only to do with the internal politics of a governmental agency. It was a privilege to have worked with Samuel - I much appreciated his technical cooperation as well as his friendship.
Dario Navaro
Samuel is one of the rare IT specialist that are able cover a very wide range of skills from VMWare Virtualisation to Cisco networking, with Microsoft servers, databases, Checkpoint firewalls in between. His knowledge in these fields are in-depth, gained over many years of system and network design, implementation and troubleshooting. But Samuel is much more than a top-level technical specialist. He is a team-worker par excellence. During over three years we worked together in a major technology refresh programme at the NHS, I found that he was always ready to help his team members and watch over their work, even when he was not asked to, ensuring the IT systems operated optimally. One of these guys you would want to watch your back as you go into battle, although the battles may have been only to do with the internal politics of a governmental agency. It was a privilege to have worked with Samuel - I much appreciated his technical cooperation as well as his friendship.
Experience
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NEL
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United Kingdom
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Hospitals and Health Care
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200 - 300 Employee
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Senior Infrastructure Engineer
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Apr 2013 - Present
Responsible for the Enterprise Network and Data Centres Design, solutions and delivery including Server Virtualisation, Storage Area Network and Blade Server Switches: Cisco UCS and Netapp flex pod, Nexus 7K/5K/1010/1000v, VMware network infrastructure (VDS or Nexus 1Kv), Brocade and Cisco Nexus SAN switches – FC, FcoE and EthernetData Centre Applications and Global Infrastructure Services: Authentication and Authorisation appliances (TACACS+(ACS), RSA, ISA RADIUS, PINsafe), and firewalls (Checkpoint, Cisco ASA and VSG), NLB (Kemp, F5 and Barracuda), DNS, DHCP and Proxy serversNetwork Performance Management System and Configuration Management: Solarwinds, iPerf, Sniffer, Wireshark, netflowWireless Networking: Aerohive and CiscoEnterprise LAN and WAN design: Cisco, HP, Brocade and Extreme network technologies
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Network Analyst
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Apr 2011 - Mar 2013
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NHS
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Hospitals and Health Care
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700 & Above Employee
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Systems Engineer
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Apr 2003 - Mar 2011
Back-end and third line support covering Cisco and Extreme Networking, Firewalls (ASA, Checkpoint and ISA), RSA, Scansafe, Netapp and Brocade SAN systems, Vmware Virtual Infrastructure, Exchange2010/2003, SQL2005/2000, Mimesweeper , Microsoft cluster, Blackberry, Novell IDM, Zenworks, Netbackup, nCircle, Antivirus (Forefront, Symantec, Trendmicro, Kaspersky), WSUS,IIS7/6/5, DHCP, DNS and various application servers. .Configure and maintain on a daily basis the Trust’s security perimeter composed of Checkpoint, Cisco ASA and ISA firewalls Managing and configuring the provisioning of SAN Storage using NetApp technologies (FAS3020), SNAP Manager for Exchange and SQL, SnapMirror, Snapshot, SnapLock, Deduplication and SAN Storage switching and routing (Brocade 300)Responsible for management and configuration VMware Infrastructure and Blade Servers System (Vmware Vsphere Enterprise, vCentre, Update manager, vCenter Converter) Install, configure and manage Solarwinds Network Performance Monitor for easy view of network status, alerts and configuration management. Ensure the Network status is monitored and viewed via two screens installed at IT support and senior management team, offices.Interfaces with external solution providers to refine and implement solutions to meet the Trust’s requirements.Work with all vendors to resolve complex network problems. In the last period, this involved testing and verifying N3SP COIN speeds that were not performing to specification; routing and ACL related access issues to nhs.net and relay.nhs.uk on the N3 cloud; I have managed to resolve Fujitsu Blade Switch compatibility issue with Cisco and Extreme switches by changing the protocols; Identified Extreme Core Network hardware failures and recommended solutions to Network First; Managed to identify failover design issue with the checkpoint and ASA firewalls and was a
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Network Administrator and Web Developer
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Feb 2000 - Apr 2003
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Network Administrator
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May 1999 - Mar 2000
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Software Developer
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Jul 1997 - Jul 1998
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Education
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2005 - 2006
Open Uni
Postgraduate Diploma, Relational Database Systems -
1993 - 1997
King's College London
MEng, Electronics Design
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