Hans Ndawi
Dar Es Salaam
Summary
Results-driven IT Infrastructure and Network Security Professional with 8 years of experience in banking. Expert in designing and implementing security solutions while enhancing incident response strategies and regulatory compliance. Led initiatives that fortified security posture and optimized IT operations, ensuring resilience and business continuity.
Overview
8
8
years of professional experience
1
1
Certification
Work History
Assistant Manager - Network Security Specialist
Exim Bank(T) Ltd
Dar Es Salaam
07.2023 - Current
- Design, implement, and maintain network security solutions, including Firewalls, VPNs, IPS, Anti-DDoS, WAF, Reverse Proxy, and other security appliances.
- Monitor network activity and analyze security logs to identify and respond to potential security incidents.
- Stay up to date with the latest security technologies and best practices to continuously improve the organization's network security posture.
- Developed and enforced network security policies and procedures, ensuring compliance with industry standards and regulations.
- Conducted regular security audits and assessments to identify vulnerabilities and risks, implementing corrective actions to strengthen security posture.
- Lead incident response efforts in the event of security breaches or cyberattacks.
- Investigate security incidents, document findings, and provide recommendations for improvements.
- Guided IT staff and employees on security policies and procedures.
- Collaborate with cross-functional teams, including IT, network engineering, and application development, to address security concerns and implement security measures.
- Communicate complex security issues to non-technical stakeholders clearly and understandably.
- Maintain comprehensive documentation related to network security configurations, policies, and incident response procedures.
- Assess and manage network security risks, implementing controls and countermeasures to mitigate potential threats.
- Monitor and renew software licenses and SSL certificates to ensure compliance and continuity.
- Develop disaster recovery strategies and conduct DR drills regularly.
- Oversaw customer service improvement projects to enhance client satisfaction.
- Interviewed prospective employees and provided input to HR on hiring decisions.
- Developed training programs for staff on security awareness and emergency procedures.
Network Administrator
Exim Bank(T) Ltd
Dar Es Salaam
03.2018 - 07.2023
- Managed network infrastructure to ensure seamless connectivity across all departments.
- Maximized network availability: Monitoring, troubleshooting, resolving outages, and scheduling upgrades.
- Monitored network performance metrics to ensure optimal availability, utilization, throughput, and latency.
- Configured and maintained routers, switches, firewalls, wireless networks and other network devices.
- Configured and maintained firewalls to protect sensitive banking information.
- Troubleshot network issues swiftly to minimize downtime for users.
- Network issue resolution: Troubleshooting methods to promote smooth system operations.
- Analyzed traffic flows through physical and logical diagrams to identify efficiency improvements.
- Monitoring of Cisco SD-WAN: Study the normal network behavior of each network device to analyze resource utilization.
- Troubleshooting and monitoring: Routine checks on both Voice and Data systems to meet federal regulations.
- Configured voice endpoints including Grandstream and Avaya handsets to ensure proper functionality.
- Technology consultation: Recommendations and upgrading existing systems for growing businesses.
- Managed network projects: From concept to implementation.
- Collaborated with clients to develop and implement network-related projects that meet their needs.
- Communicates complex security issues to non-technical stakeholders clearly and understandably.
- Resolved tickets: 98% closures per day using the Helpdesk process.
- Cultivated relationships with vendors and IT consultants to enhance resource availability and support.
- Performed regular data backups and updated disaster recovery procedures to safeguard critical information.
- Conducted thorough network reviews and strengthened security policies to mitigate potential cyber threats.
- Solution development: Reviewing network policies and infrastructure to evaluate sub-optimal areas.
- Monitoring Sophos XG Firewalls: Routine monitoring of HQ and DR.
Education
Bachelor of Science - Telecommunication Engineering
University Of Dar Es Salaam
Dar Es Salaam, Tanzania01-2014
Advanced Certificate of Secondary School -
Tanga Technical Secondary School
Tanga, Tanzania01-2010
Certificate of Secondary School -
Pandahill Secondary School
Mbeya, Tanzania01-2007
Skills
Security & Defense
- Threat Mitigation (WAF/DDoS)
- Vulnerability Assessments
- Incident & Risk Management
- NAC & Identity Management
- IDS/IPS configuration
Infrastructure & Design
- Enterprise Network Architecture
- SD-WAN & Load Balancing
- Fiber Transmission & Connectivity
- Linux & System Administration
- Business Continuity / Disaster Recovery
Leadership & Strategy
- Project & Resource Management
- Digital Transformation
- Vendor & Contract Relations
- Policy Development & GRC
Certification
- Certified Information Security Manager (CISM)
- ITIL 4 Foundation
- Cisco Certified Network Associate (CCNA)
- Fortinet NSE4 - Network Security Professional
- Fortinet NSE7 - Network Security Architect
- NSE1 & NSE2
Hobbies and Interests
- Travelling
- Watching local and international news
- Reading books, newspapers, and magazines
- Meeting new people and exchanging ideas
Personal Attributes Attitudes
- Adaptable to dynamic environments
- Able to work independently
- Self-driven and responsible
- Accepts criticism and learns from challenges
- Passionate about continuous learning
Key Projects Initiatives
- Network Infrastructure Redesigning: Primary Data Center and Secondary Data Center (DR Site)
- Network Segmentation: Both DC and DR sites
- Cisco SD-WAN deployment: Across 30 branches, reduces 45% of the WAN cost
- Sophos RED deployment: For ATMs/CDMs, it reduces 40% of the cost
- Upgraded EOL core/access DC equipment: Improved performance
- Deployed Load Balancers, Anti-DDOS & WAF solutions: DC and DR sites
Timeline
Assistant Manager - Network Security Specialist
Exim Bank(T) Ltd
07.2023 - Current
Network Administrator
Exim Bank(T) Ltd
03.2018 - 07.2023
Bachelor of Science - Telecommunication Engineering
University Of Dar Es Salaam
Advanced Certificate of Secondary School -
Tanga Technical Secondary School
Certificate of Secondary School -
Pandahill Secondary School