EMMANUEL SASU
Accra,Not applicable
Summary
Network Engineer with 6 years of hands-on experience designing, configuring, and maintaining enterprise I networks across LAN, WAN, and data center environments. Strong expertise in routing and switching technologies, including BGP, OSPF, EIGRP, and MPLS, delivering secure, scalable, and high-performance network solutions. Proven ability to monitor network performance, troubleshoot complex issues, and optimize reliability and speed in mission-critical environments. Experienced in collaborating with network architects, security, and operations teams to deploy resilient infrastructures. Highly skilled in network documentation, change management, upgrades, and ensuring compliance with security standards and best practices.
Overview
6
6
years of professional experience
Work History
IP Transmission Engineer
Smart Infraco Limited
Ghana
07.2023 - Current
- I work closely with the Service Delivery team to deploy enterprise internet connectivity using fiber and point-to-point wireless solutions, supporting the onboarding of new customers.
- I am responsible for provisioning, managing, and maintaining highly available internet services for colocation customers, delivering 99.98% uptime to TOR/EOR switch environments within the NITA data center.
- I design, implement, and support SD-WAN solutions for enterprise clients mostly on Fortinet platforms, helping improve branch-to-HQ connectivity, optimize failover, and ensure stable application performance across multiple sites.
- On a daily basis, I provide day-to-day operational support for managed customers, covering switching, routing, firewall, and WAN services.
- I also collaborate directly with Internet Service Providers (ISPs) to troubleshoot, isolate, and resolve WAN and last-mile connectivity issues, including link degradation, latency, packet loss, and routing faults, ensuring rapid service restoration and SLA compliance.
- I deliver and support advanced routing and service-provider technologies, including OSPF, BGP, IS-IS, MPLS (L2/L3), LDP, VPLS (LDP and BGP-signaled), ensuring resilient and scalable network operations.
- I work directly with customers to troubleshoot network performance issues, recommend architecture improvements, and support new environment setups and migrations.
- I participate in a 24×7×365 on-call rotation, providing timely response and resolution for critical incidents affecting core infrastructure.
- I support network upgrades, migrations, and configuration changes, coordinating closely with engineering and operations teams to minimize service impact.
- I conduct root cause analysis (RCA) and lead post-incident reviews, implementing corrective actions to improve stability and prevent recurrence.
- I produce clear, professional technical documentation and network design diagrams using Microsoft Visio to support operational handover and customer understanding.
- To improve efficiency and consistency, I also use Python scripting to automate configuration backups and routine operational tasks across the network environment.
- Collaborate with cross-functional teams to integrate new technologies into existing systems.
- Manage project timelines and deliverables to ensure on-time completion of initiatives.
- I train junior engineers on best practices in transmission design and troubleshooting techniques.
- Troubleshot and resolved problems with network systems.
- Evaluate network failures, outages, and stabilization strategies.
Network Support Engineer
National Information Technology Agency (NITA)
Ghana
10.2020 - 05.2023
- Assisted in designing scalable LAN/WAN architectures through capacity planning, performance analysis, and evaluating future expansion requirements.
- Performed troubleshooting of networking issues across the enterprise network.
- Drafted and maintained technical documentation, network diagrams, configurations, and troubleshooting steps in alignment with the organization's standards.
- Collaborated with cross-functional teams to troubleshoot and resolve network issues, ensuring minimal downtime.
- Configured and maintained Cisco routers, firewalls, and switches to support and protect data across the network.
- Supported change management by preparing configs, validating changes during maintenance windows, and coordinating with engineering, cloud, and security teams.
- Configuration and troubleshooting of various services, including internet, L2 VPN (LDP layer 2 circuits, VPLS), VPLS (BGP signaled, LDP signaled; BGP AD).
- Lead day-to-day operations, including client engagement, project planning, vendor coordination, and service delivery, ensuring high-quality outcomes.
- Diagnosed and resolved network connectivity issues to ensure optimal performance for end-users.
- Assisted in configuring and maintaining network equipment, including routers and switches.
- Documented technical processes and solutions to streamline troubleshooting efforts for team members.
- Provided technical support to internal staff, addressing inquiries on network-related concerns efficiently.
- Trained junior staff on best practices for network maintenance and security protocols.
- Managed network upgrades, migrations, and expansions while minimizing disruptions to daily operations.
Network Technical Officer
Sawtel Unified Communication
Ghana
06.2020 - 09.2020
- Installed and commissioned VSAT and IP network equipment, including dish alignment, modem provisioning, and full link validation for enterprise clients.
- Designed and implemented secure, scalable network infrastructures, covering LAN/WAN, VLANs, inter-VLAN routing, VPNs, firewalls, and wireless deployments.
- Configured and deployed Cisco routers and switches for branch connectivity, including VLANs, routing, DHCP, and secure remote access.
- Troubleshot and resolved Layer 1-Layer 3 connectivity issues on-site and remotely, ensuring minimal service downtime and SLA compliance.
- Supported team in troubleshooting technical issues and resolving customer inquiries.
- Collaborated with colleagues to streamline workflow processes for improved efficiency.
- Analyzed data trends to identify areas for process improvement within the team.
- Mentored junior staff members, helping them develop their skills and advance in their careers.
- Coordinated cross-functional teams to address complex issues, leading to more efficient problem-solving processes.
- Developed effective improvement plans in alignment with goals and specifications.
- Assisted in daily operations to ensure communication systems functioned effectively.
Network Support Engineer (National Service)
National Information Technology Agency (NITA)
Ghana
11.2019 - 05.2020
- Assisted in deploying and configuring enterprise network devices (routers, switches, firewalls), including VLANs, routing protocols, and secure remote access.
- Performed Layer 2 & Layer 3 troubleshooting for branch and client networks, resolving connectivity, performance, and configuration issues.
- Supported network upgrade and migration projects, including device staging, IOS updates, and cutover support.
- Collaborated with senior engineers to implement and maintain secure network infrastructures, including VPNs, ACLs, and port security.
- Monitored and analyzed network performance and logs, identifying bottlenecks and contributing to proactive network optimization.
- Configured, managed, and support load balancers to ensure high availability, performance, and resilience of business-critical applications.
- Troubleshot and resolved network connectivity issues for end-users, ensuring minimal downtime.
- Assisted in configuring and deploying routers and switches within the organizational infrastructure.
- Documented technical processes and created knowledge base articles to enhance team efficiency.
- Collaborated with cross-functional teams to implement network upgrades and improvements, enhancing overall performance.
- Managed network upgrades, migrations, and expansions while minimizing disruptions to daily operations.
- Reduced downtime for clients by providing efficient technical support and timely issue resolution.
NOC Engineer (National Service)
National Information Technology Agency
Ghana
09.2019 - 05.2020
- Monitor network infrastructure health, performance, and availability using SolarWinds.
- Troubleshoot issues related to routing, switching, wireless, firewall, and transport layers, escalating to higher tiers when required.
- Analyze network alerts and logs to identify root causes and ensure prompt restoration of services.
- Coordinate with field engineers and third-party providers during outages, maintenance, and service activations.
- Perform routine health checks on routers, switches, firewalls, and transmission equipment.
- Document incidents, resolutions, and network changes using OTRS ticketing system.
- Participate in rotational on-call schedules to support 24/7 NOC operations.
- Responded to alerts and incidents, providing timely troubleshooting support for network operations.
- Conducted routine maintenance checks on hardware and software components, minimizing downtime risks.
Network Support Engineer
OpenLabs
Ghana
01.2017 - 01.2019
- Configured and maintained LAN/WAN environments, ensuring reliable connectivity across campus offices and labs.
- Supported switching and routing operations, including VLAN setup, inter-VLAN routing, and troubleshooting spanning tree/RSTP issues.
- Assisted with network security tasks such as implementing ACLs, DHCP snooping, and port security to safeguard sensitive infrastructure.
- Configured and deployed enterprise to mid-range FortiGate firewalls (1200D, 1000D, 900D, 800C) for customers.
- Diagnosed and resolved network connectivity issues to ensure optimal performance for end-users.
- Assisted in configuring and maintaining network equipment, including routers and switches.
- Collaborated with cross-functional teams to implement system upgrades and enhancements.
- Provided technical support to internal staff, addressing inquiries on network-related concerns efficiently.
- Conducted regular audits of network systems, ensuring compliance with organizational standards and policies.
- Worked closely with information security teams in addressing identified vulnerabilities within the organization''s IT infrastructure.
Education
Bachelor of Science - Information Technology
Ghana Communication Technology University
Accra, Ghana11.2025
Skills
- Documentation ( Network diagrams ( HLD/ LLD) - Visio, configuration, and change records) ,
- Enterprise and Service Provider Routing ( MPLS ( L2/ L3 VPNs), VPLS, IP Transport, SD- WAN),
- Exceptional communication skills for customer- facing interaction ,
- Multi- vendor engineering ( Cisco, Fortinet, Huawei, MikroTik),
- Network Automation & Scripting (Python),
- Network Monitoring and Performance Tools ( SolarWinds, Wireshark, NetFlow, SNMP),
- Network Segmentation & Security (ACLs, Route Filtering, Policy- Based Routing),
- Network Services ( DNS, DHCP, NAT, TCP/ IP, TACACS / RADIUS),
- Project Management,
- Routing Protocol and Switching (OSPF, BGP/ MBGP, IS- IS, EIGRP, QoS, VLANs, Inter- VLAN Routing, STP/ RSTP, EtherChannel),
- Troubleshooting: Layer 1– Layer 3 fault isolation, packet loss, latency, and routing instability
- Problem-solving
- Teamwork and collaboration
- Excellent communication
- Critical thinking
- Self-motivation
- Python programming
Certification
- Cisco Certified Network Professional - Enterprise Infrastructure
- Fortinet Cybersecurity Associate(NSE3)
Languages
English
Advanced (C1)
Timeline
IP Transmission Engineer
Smart Infraco Limited
07.2023 - Current
Network Support Engineer
National Information Technology Agency (NITA)
10.2020 - 05.2023
Network Technical Officer
Sawtel Unified Communication
06.2020 - 09.2020
Network Support Engineer (National Service)
National Information Technology Agency (NITA)
11.2019 - 05.2020
NOC Engineer (National Service)
National Information Technology Agency
09.2019 - 05.2020
Network Support Engineer
OpenLabs
01.2017 - 01.2019
Bachelor of Science - Information Technology
Ghana Communication Technology University