Summary
Overview
Work History
Education
Skills
Certification
References
Languages
References
Timeline
Generic

Yohannes Johnson

Accra

Summary

An experienced ICT security administrator and Cisco Certified Internetwork Expert (CCIE# 77665) designation. Over 12 years of diverse experience in the fields of infrastructure development, system administration, Unified Communication and Skilled in implementing information security infrastructure and balancing security initiatives to external risks and business operations.

Overview

13
13
years of professional experience
1
1
Certification

Work History

Information Systems Assistant

United Nations (CASCADE)
Bie
02.2019 - 12.2024
  • The strategic planning of all major projects within the Mission, specializing in ICT security.
  • Oversee the design, development, testing, and implementation of new security measures and technologies in a challenging environment.
  • Successfully implemented a robust multilayer security system for the mission, incorporating advanced anti-virus, antispam, and anti-spyware software. As a result, malware risk was significantly reduced by 30%.
  • Applied strategic routing changes, including BGP, OSPF, EIGRP, and PIM, resulting in a substantial improvement in overall network and system performance.
  • Implemented robust encryption protocols for the mission's data transmissions, ensuring the concealment of confidential information during transmission.
  • Additionally, set up effective firewalls to prevent unauthorized access and effectively block tainted digital transfers.
  • Played a key role in preparing, standardizing, and implementing data security policies.
  • Enforced all network security procedures to ensure the protection and integrity of sensitive information.
  • Conducted comprehensive data collection and analysis on the performance and reliability of Network Link Status, Servers, Switches, and Firewalls to assess performance and reliability, leading to recommendations for essential upgrades and improvements aimed at enhancing network efficiency and security.
  • Supported the network engineering team in creating comprehensive system infrastructure, user documentation, and necessary policy documents as per mission requirements, while also outlining the technology units standard operating procedures (SOP).
  • Identified software and hardware vulnerabilities by implementing patch management and security updates, with a primary focus on maintaining system integrity and safeguarding against potential security risks.

Wide Area Network (WAN) Engineer

Tuckson Technologies Ltd. - United Nations
Cybi
05.2014 - 02.2019
  • Demonstrated expertise in troubleshooting IP connectivity and network performance issues, resulting in a 40% improvement in the mission's network performance after transitioning from the closed old mission (BISIC) to the new mission (BINUS).
  • Additionally, successfully minimized vulnerabilities by an impressive 15% during the transitional upgrade process.
  • Provided expert-level guidance on network security, routing and switching, VPN, QoS, and the seamless integration of the Mission's WAN with external providers.
  • Delivered strategic insights on various network-related policies to ensure optimal performance and fortified security.
  • Ensured the mission's system security and reliability by diligently maintaining device configurations, performing backups, and utilizing network monitoring tools.
  • This proactive approach resulted in a remarkable 25% reduction in client support tickets.
  • Participated in collaborative efforts with fellow technology units to ensure the successful implementation of Disaster Recovery procedures and holistic security measures.
  • Consolidated, fine-tuned, and integrated traffic statistics of the Mission’s Internal Network by using in house monitoring systems to better assess remote sites capacity requirements, utilization and metrics to aide decision making on network requirements and polices.
  • Fostered close collaboration with external security vendors, offering expert-level network guidance and support to prevent and mitigate threats and abuses on the Mission's network.
  • Conducted system log analysis, executed health system checks, and performed security assessments to identify vulnerabilities and ensure robust security measures.

Senior Network Engineer

Computer Information Systems (CIS) Ltd.
Ghisl
08.2011 - 03.2014
  • Key engineer identified as the subject matter expert chartered to redesign, implement, and migrate legacy Business to Business (B2B) networks.
  • Our team was tasked with designing a network infrastructure which would correct latency issues experienced by the firm's Business to Business clients while using sensitive trading applications on the network and simultaneously reducing the heavy maintenance cost of the infrastructure.
  • Detected 30+ network vulnerabilities by testing infrastructure security and tracking potential threats to the network for the firm’s client Ministry of Finance (Government of Asia).
  • Successfully managed the design, installation, and administration of a comprehensive organization-wide Local Area Network (LAN), Wide Area Network (WAN), network segment, and internet system for the esteemed client, Asia Statistical Services (Government of Asia).

Education

BBA IT Security -

Swiss Management Center (SMC) University
Zug, Switzerland
11.2015

Senior High School Diploma -

Danbai Senior High School
Zug
07.1994

Skills

  • ICT security
  • Network troubleshooting
  • Data encryption
  • Firewall management
  • Routing protocols
  • Security policy implementation

Certification

  • Cisco Certified Internetwork Expert – Security (CCIE# 77665), Brussels, 05/01/21
  • Cisco Certified Network Professional – Security (CCNP), 04/01/21
  • Certified in Cybersecurity (ISC)², 584732, 03/01/23
  • Certified Information System Security Professional (CISSP), 584732, 03/01/24
  • Checkpoint Certified Security Administrator - (CCSA), 01/01/16
  • Checkpoint Certified Security Expert - (CCSE), 09/01/16

References

Available upon request.

Languages

  • English, Native
  • French, Working Knowledge

References

References available upon request.

Timeline

Information Systems Assistant

United Nations (CASCADE)
02.2019 - 12.2024

Wide Area Network (WAN) Engineer

Tuckson Technologies Ltd. - United Nations
05.2014 - 02.2019

Senior Network Engineer

Computer Information Systems (CIS) Ltd.
08.2011 - 03.2014

BBA IT Security -

Swiss Management Center (SMC) University

Senior High School Diploma -

Danbai Senior High School

Similar Profiles

CREATE PROFILE
Yohannes Johnson