Tilahun Yigzaw Wollela

A Security Engineer with self-motivation, background in Electrical Engineering, and excellent technical skills. Supervised facility network operations and reduced downtime by adapting to accommodate evolving user requirements. Effective maintenance of high-level systems and the ability to work well with others resulted in the best possible outcomes. A Candidate who is reliable and efficient in handling various tasks while maintaining a positive mindset. Readiness to assume additional duties in order to achieve team objectives. Certified in various qualifications including Cisco Certified Specialist - Enterprise Core, Cisco Certified Specialist - Enterprise SD-WAN Implementation, CCNP Enterprise, Checkpoint CCSA and CCSE, AWS, ITIL, CISSP, Cisco ASA, Cisco NAC Appliance, Stongate Firewall System Architect, and Stongate Certified 5.0 Administrator.
I have over 20 years of experience as a Network Security Engineer focusing on designing, constructing, and overseeing security infrastructure. I possess extensive expertise in Cisco Identity and Access Management technologies, as well as in the installation and configuration of various firewall brands and the establishment of virtual private networks (VPN).
An individual with a strong work ethic and diligent nature, driven by a commitment to quality and self-motivation. Teaches coworkers about top strategies and security protocols for networking. Defends networked resources with a combination of proactive and reactive strategies.

-Part of the project team to Rollout of Stonegate Firewall in mission wide around 40 sites

-Part of the project team to Rollout of cisco ASA in mission wide around 40 sites

-A team lead to move from cisco ASA firewall to checkpoint firewall node ,security management and event log

-A team lead to move the organizations Wireless system to Cisco Enhanced managed wireless mesh configuration with controllers and cisco Identity service ISE

-conducting penetration tests, vulnerability assessments, and security audits,identifying and mitigating potential risks and improving overall network security.

-Directed the implementation of a comprehensive network security strategy, resulting in reducing security incidents and breaches.

-Achieving improvement in incident response times through the development of streamlined processes and protocols.

-Developed and implemented a new firewall configuration, reducing unauthorized network access with cisco ISE

-Provided training and awareness programs to staff, resulting in a decrease in security incidents caused by human error.

-Performed detailed network security audits, identifying and rectifying security gaps that improved the organization security posture

-Implemented a real-time network monitoring system, enhancing the detection of malicious activities and reducing response time

- Assisted in the development of a disaster recovery plan, ensuring business continuity and reducing potential downtime in the event of a major incident.

-Design and implementation of a new network infrastructure, resulting reduction in network downtime.

-achieving a record-low network failure rate by implementing proactive maintenance procedures and adopting cutting-edge network management tools.

- Developed and executed a comprehensive network security strategy that identified and mitigated significant security risks, safeguarding the organization against potential data breaches and cyber-attacks.

-Playing key role in the design and execution of a major network upgrade project, which increased network capacity




Additional courses taken in different times

• ITILV3 Foundation Torque IT South Africa
• AWS RSCE -UN training Facility Entebe
• CISSP in Torque IT South Africa
• Checkpoint System Administrator -UN Training Center Valencia
• Checkpoint System Expert -UN training center Valencia
• Designing Cisco Networks Torque IT South Africa
• Securing Networks with ASA Foundation (SNAF) Torque IT South Africa
• Securing Networks with ASA Advanced (SNAA) Torque IT South Africa
• Implementing Cisco NAC Appliance (CANAC) Torque IT South Africa
• Implementing cisco MARS Torque IT South Africa
• Stongate Firewall management center UN Training Center Entebbe
• Stongate Firewall /VPN Administration UN Training Center Entebbe
• Stongate IPS/IDS UN Training Center Entebbe
• Training by Transnational Computer Technology (TCT) December 2002 - February 2002
• Interconnecting and Configuration of Cisco network devices
• System Administration Using Solaris 8 and Windows NT
• Web server Administration and configuration
• CGI and PERL programming
• Network Security using Firewall(Checkpoint 2000) and PIX Firewall
• Shell Programming
• Cisco works 2000
• Infosys: March 2003-May2003
• Building Scalable Cisco Internetworks
• Building Cisco Multilayer Switched Networks
• Building Cisco Remote Access Networks
• Cisco internet network Designing
• Cisco Internetwork Troubleshooting Support
• PIX firewall configuration

SD-WAN -Cisco Certified Specialist - Enterprise SD-WAN Implementation certificate

1. Killmore Madzivadondo MBA, MENGIN, BENG, MIET, MBCS

Chief Field Technology Services (FTS)

United Nations Office to the African Union (UNOAU)

Addis Ababa, Ethiopia | UNECA compound | Zambezi Building | 5th Floor

madzivadondo@un.org | +251911511716 | Intermission 1934048

2. Francis Mumbey-Wafula

Administrative Officer

United Nations Office to the African Union (UNOAU) and Office of

the Special Envoy for the Horn of Africa (OSE-Horn of Africa).

Menelik Avenue, UNECA Compound, NOF Floor 5; Addis Ababa, Ethiopia

Ext:  193-4020

Mobile : +251 (0) 911509132

Direct  : +251 (0) 115442220

Fax:     : +251(0)  115511652

Email     : mumbey-wafula@un.org

3. Ildephonse Ikitegetse,

Supervisor for IT Unit

United Nations Office to the African Union (UNOAU)

Addis Ababa, Ethiopia | UNECA compound | Zambezi Building | 5th Floor

ikitegetse@un.org| Intermission 193-4129, Mobile:+251911511725