Ibrahim Osman

Technical Manager | Senior Network Security Engineer at Premiatek
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Contact Information
us****@****om
(386) 825-5501
Location
São Paulo, Brazil, BR
Languages
  • Arabic -
  • English -
Skills

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Credentials

  • Cisco Certified Instructor Trainer
    Cisco Systems
    May, 2011
    - Nov, 2024
  • Microsoft Certified IT Professional-Enterprise Administrator
    Microsoft
    Mar, 2011
    - Nov, 2024
  • Microsoft Certified Trainer
    Microsoft
    Sep, 2008
    - Nov, 2024
  • Microsoft Certified Systems Engineer-MCSE
    Microsoft
    Jan, 2003
    - Nov, 2024
  • Cisco Certified Network Professional-CCNP
    Cisco Systems
    Jan, 2007
    - Nov, 2024
  • Cisco Certified Network Associate Security-CCNA SECURITY
    Cisco Systems
    Jun, 2013
    - Nov, 2024
  • Cisco Certified Network Associate-CCNA
    Cisco Systems
    Jan, 2004
    - Nov, 2024

Experience

  • Premiatek
    • Lebanon
    • Information Technology & Services
    • 1 - 100 Employee
    • Technical Manager | Senior Network Security Engineer
      • Sep 2019 - Present

       Designing, implementing, configuring, and troubleshooting a scalable, redundant, and resilient enterprise network infrastructure based on Cisco Catalyst, Nexus switches, and Cisco Meraki Wi-Fi, routing, switching, security, and SD-WAN cloud controlled  Implementing Cisco Prime Infrastructure, Cisco Identity Services Engine (ISE), Application Centric Infrastructure (ACI), and Cisco Digital Network Architecture (Cisco DNA)  Configuring and troubleshooting advanced switching protocols (VLAN, VTP, MSTP, HSRP, VRRP), routing protocols (BGP, OSPF, EIGRP, MPLS), and WAN technologies (PPP, Frame relay, DSL)  Coding, programming, and scripting skills (APIs, PYTHON, Perl, JSON). Software-defined networking (SDN)  Implementing, and configuring NG-Firewalls, application filters, web filters, content and packet filtration, IPS/IDS, Anti-Malware, endpoint security, SSL VPN, and IPSEC VPN (Cisco ASA, Palo Alto, Juniper, Fortinet, F5)  Advanced penetration testing, vulnerability research, exploitation techniques, and forensics investigation  Defining incident response plan and structured methodology for handling and responding to security incidents. Effectively identifying breaches and cyber threats, minimizing the damage, reducing the cost of a cyber-attack, and finding the countermeasures to prevent future attacks  Cybersecurity policies and procedures implementation, awareness, and auditing. High experience in Cybersecurity standards and frameworks like NIST, ISO…  Configuring and securing cloud based systems (AWS, Azure, Google) using VMware vSphere and Hyper-V virtualization platforms Show less

  • American University of Technology
    • Lebanon
    • Education Administration Programs
    • 1 - 100 Employee
    • IT Manager | Senior Network Security Engineer
      • Apr 2015 - Sep 2019

       Configuring, implementing, and securing enterprise network infrastructure using Juniper Networks, LAN's, VLAN's, WLAN’s, WAN's, Inter-VLAN & Inter-branch Routing, tunneling protocols, MPLS and BGP. Traffic optimization & load balancing over Multi-WAN links, SD-WAN  Configuring & implementing Voice and Video over IP among campuses using AVAYA IP Office 500, traffic and packet shaping using BLUECOAT  Installing and configuring Controlled based Cisco wireless solution based on Cisco WLC 2504, Cisco 1815i access points  Securely protecting the enterprise network from internal and external threats using application firewalls, web filters, content filters, cloud based WAF, and cloud based DDoS protection. Assessing network security by running vulnerability assessments & penetration testing tools  Developing incident response plan to handle and respond to hacking attacks, extracting evidence and conducting audits to prevent future attacks  Systems integration and automation, python, JSON, JQUERY  Configuring & implementing Windows and Linux server systems using Hyper-V virtualization, Windows Active directory, DNS, Moodle e-learning system, DFS, file and backup servers, Red Hat Linux server. Enforcing Hyper-V Replication and failover cluster  Administering database systems (SQL & ORACLE), Banner student information system, SharePoint collaboration sites, Google Apps for Education, & VEEAM Backup operations  Optimizing network performance & analyzing traffic using Network management protocols, SNMP, SYSLOG, PRTG Show less

  • Ramco Trading and Contracting S.A.L
    • Lebanon
    • Construction
    • 1 - 100 Employee
    • IT Manager | Senior Network Security Engineer
      • May 2013 - Mar 2015

       Configuring & implementing the GLOBAL network infrastructure, connecting all sites to the head office using different WAN technologies (Frame relay, DSL), Routing & tunneling protocols. VLAN Implementation, Inter-VLAN Routing, running HSRP to ensure high availability & load balance among L3 core switches, MSTP for switching loops elimination, Cisco controlled based wireless solution  Configuring and implementing Cisco collaboration and unified communication system BE6K, SRST  Implementing all security measurements for defending & protecting the enterprise network using PALO ALTO NG firewalls, F5 BIG-IP WAF, IPS's, ESET centralized endpoint protection  Conducting Cybersecurity penetration tests, vulnerability research, exploitation procedures, and identifying effective incident response plans  Implementing high availability and automatic failover for Linux and windows systems using VMware vSphere virtualization and HPE MSA SAN storage systems. vCenter, vMotion  Implementing ERP solution, Document and content management systems, Symantec Backup Exec for VM’s, Data loss prevention, Kaspersky central endpoint protection  Executing quality of service rules, bandwidth throttling, traffic engineering operations Show less

  • HDC HOSPITAL
    • TRIPOLI - LEBANON
    • Network Systems Engineer
      • Oct 2008 - Apr 2013

       Configuring & implementing the network infrastructure VLAN’s, VTP, RSTP, Trunk, Ether Channel, and Inter-VLAN Routing based on Cisco routers and switches, Cisco controlled based wireless system  Configuring & implementing virtualized environment based on MS Hyper-V, Virtual machine management and replication, Windows Active Directory, DNS, IIS, DFS, GPO’s, SharePoint, Exchange server, SQL Database system  Managing and configuring security systems including Cisco ASA application firewall, web filters, IPSEC and SSL VPN. Publishing web applications Lab portal and PACS to the internet using F5 WAF  Implementing and integrating hospital information system (HIS), Radiology information system (RIS), Laboratory information system (LIS), and Picture archiving and communication system (PACS)  Network performance optimization & troubleshooting Show less

  • AUL
    • Tripoli
    • Network systems administrator
      • Mar 2005 - Sep 2008

       Accomplishes organization goals and meets IT Department’s vision, financial requirements, & monitoring expenses  Defining network & system policies | procedures. Analyzing workflow, access, information, and security requirements  Configuring switching, routing, firewalls, NAT, & wireless services  Securing the network by developing network access, monitoring, control, and evaluation. Maintaining documentation  Configuring client | server architecture, Domain AD Environments, workgroups, system applications, DNS, DHCP, file server  Running daily and automated backup procedures for servers and user’s data. Checking up data integrity & ensuring data confidentiality  Evaluating network performance issues including availability, system utilization, and latency. Maintains network performance by performing network monitoring and analysis, performance tuning, and troubleshooting network problems Show less

Education

  • American University of Technology
    Masters of Business Administration - MBA, Business Administration and Management, General
    2017 - 2018
  • Lebanese French University
    Bachelor's degree, Computer Science and Telecommunication
    2009 - 2012

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