DANIEL ANTWI

• Monitored switches, routers, servers, UPS systems, and WAN circuits to ensure SLA compliance.
• Managed incident documentation, escalation, and coordination with field technicians to restore services efficiently.
• In charge of Device deployment, configuration and installations (C9300, Chassis C9400 and C9500) in migrating Yale’s legacy network to Next Generation Network (Cisco DNA Center)
• Conducted Site survey to verify functionality and signal strength of Cisco Wireless access points.
• Assist in racking, stacking, and powering on new or replacement network equipment
• Assisting in new projects and deploying new data network technologies in an enterprise environment.
• Performed Layer 2 and Layer 3 Configurations including RPVST, Vlans, Trunks, and ether-channels on Cisco 3850 and 9300 stack switches and resolved connectivity issues with network.
• To establish and maintain network performance by building network configurations, connections and troubleshooting network problems.
• Supporting project which includes data equipment installations and removals throughout the Yale campus inclusive of the Yale Medical School.
• Working in close collaboration with wireless techs, project manager, and communications leads for Cisco DNA Center Project.
• Handles Data Communications fiber and copper infrastructure upgrade for Yale University Next Generation Network.
• Support collaborative relationships between network, computer and other IT organizations, including both the company’s staff and its relevant technology service providers
• Support, troubleshoot and resolve issues as they relate to data transmissions, user reports, system access, system messages, and equipment failures, escalate when appropriate.
• Open incident tickets for issues as required and monitor ServiceNow for incoming incident tickets
• Documents problems and detailed solutions with accuracy and compliance with established practices.
• 2ND Phase of the Project

• Proactively identifies and resolves network performance anomalies, reducing troubleshooting time and preventing service disruptions during live events.
• Builds and maintains network performance dashboards and executive reports, translating technical findings into actionable insights.
• Utilized Infoblox NetMRI for configuration compliance, network automation, and operational visibility.
• Supported security investigations and incident response activities related to anomalous traffic, malware indicators, and policy violations.
• Deploys and configure enterprise network hardware (Cisco Catalyst/Nexus, Juniper, Arista), provisioning interfaces, routing protocols (OSPF, BGP, EIGRP), and access policies across multi-site environments.
• Conducts deep packet inspection and advanced traffic analysis using Wireshark, and Riverbed ARX to support high-availability broadcast and streaming environments.
• Leveraged Gigamon TAPs and network visibility infrastructure to monitor, filter, and analyze traffic across core and distribution layers.
• Utilized SolarWinds, PRTG and SPECTRUM to monitor performance metrics, bandwidth utilization, and device health; configured SNMP traps, syslog, and threshold-based alerts.
• Built and documented end-to-end connectivity diagrams, IP address schemes, rack elevations, and patch panel layouts using tools such as Visio or draw.io.
• Worked directly with vendors (Cisco TAC, ISPs, fiber carriers) to isolate and resolve hardware failures and upstream outages.
• Configures and administers Cisco Catalyst/Nexus, Juniper, and Arista routers, switches, and firewalls, ensuring uptime and policy compliance.
• Monitored network health and performance using tools such as SolarWinds, NetFlow, Wireshark, and Splunk, reducing troubleshooting time by 40%.
• Conducts packet capture analysis and root cause investigations for latency, jitter, and packet loss issues.
• Leads and contributed to projects involving network refresh, redundancy builds, QoS implementation, and VoIP optimization; collaborated with broadcast teams on live-stream infrastructure at scale.
• Creates and maintains detailed network documentation, including L2/L3 diagrams, topology maps, and standard operating procedures (SOPs).
• Delivered Tier 2/3 technical support for complex incidents, working closely with NOC and IT support teams to ensure rapid resolution and service continuity.
• Participated in 24x7 on-call rotation, responding to critical outages and performance issues in high-availability environments.
• Date

• Provided Tier 2 network monitoring and incident response for large-scale LAN/WAN environments supporting educational institutions.
• Providing systems support functions for client end systems, this includes design, development, troubleshooting, diagnosis, and problem resolution.
• Perform incident documentation by creating tickets. Incident documentation includes selection of the affected party, prioritization of the incident, filling in the mandatory fields such as type and time of incident and a brief description.
• Research and resolve issues such as documentation requests, repeat issues, customer follow-up as appropriate, recommend any process improvements and provide shift turn over status.
• Perform notification and escalation of the incident as documented in customer specific procedures in accordance with established guidelines and standards.
• Front line to the technical support staff members by coordinating and routing incidents calls and tickets.
• Responding to network events, customer telephone calls and e-mails (collectively referred to as “incidents”).
• Monitoring large infrastructures, including switches, routers, servers, UPS devices and WAN circuits.
• Monitor the alarm activity (including multiple customers and internal infrastructure) through the software monitoring system
• Track incidents where applicable to verify that response times and availability requirements established in the SLA are met.
• Create and update tickets with 100% accuracy, following established procedures
• Executed projects given by Management
• Responsible for working with customers on troubleshooting, incident resolution, change management, and communicating technical issues
• Work with field technicians in the clearing of troubles and/or network outages

• In charge of Device deployment, configuration and installations (C9300, Chassis C9400 and C9500 ) in migrating Yale’s legacy network to Next Generation Network (Cisco DNA Center)
• Conducted Site survey to verify functionality and signal strength of Cisco Wireless access points.
• Assist in racking, stacking, and powering on new or replacement network equipment
• Assisting in new projects and deployment of new data network technologies in an enterprise environment.
• Performed Layer 2 and Layer 3 Configurations including RPVST, Vlans, Trunks, and ether-channels on Cisco 3850 and 9300 stack switches and resolved connectivity issues with network.
• To establish and maintain network performance by building network configurations, connections and troubleshooting network problems.
• Supporting project which includes data equipment installations and removals throughout the Yale campus inclusive of the Yale Medical School.
• Working in close collaboration with wireless techs, project manager, and communications leads for Cisco DNA Center Project.
• Handles Data Communications fiber and copper infrastructure upgrade for Yale University Next Generation Network.
• Support collaborative relationships between network, computer and other IT organizations, including both the company’s staff and its relevant technology service providers
• Support, troubleshoot and resolve issues as they relate to data transmissions, user reports, system access, system messages, and equipment failures, escalate when appropriate.
• Open incident tickets for issues as required and monitor ServiceNow for incoming incident tickets
• Documents problems and detailed solutions with accuracy and compliance with established practices.
• 1ST Phase of the Project

● Monitor all local and remote network elements to ensure operational integrity and to provide
timely restoration of service upon the detection of network troubles.
● Detects, isolates, and troubleshoots failures and degraded network performance in
adherence with customer service levels.
● Liaise with the development team to provide production support and issue resolution.
● Monitor environmental conditions on-site and from remote facility locations if necessary.
● Installed network equipment and physically maintain the spaces and cabling infrastructure.
This includes working with other departments, vendors and contractors, and providing clear
communication to ensure continued function and efficiency of the overall network.
● Communication with key stake holders and IT peers to determine needs of the organization.
Troubleshoot network outages and performance issues in support of key business processes
and communicate with all staff regarding planned outages and downtime.
● Developed and maintained network documentation and policies for security and use of the
network.

• Provided operational support and project implementation for Cisco-based network infrastructure, including switching, routing, cabling, and monitoring
• Participating in on-call responsibilities in support of a 24 x 7 x 365 production environment
• Performed installation, configuration and testing of LAN/WAN devices
• Maintained technical and operational documentation and training materials for installation and configuration activities
• Handled the tasks of documenting network problems and resolutions for future reference.
• Monitored and maintained network equipment.
• Monitor company-wide daily batch processing to support business operations.
• Monitor and report on all incidents impacting company-wide systems accessibility
• Assist in racking, stacking and powering on new or replacement network equipment
• Assisting in new projects and deploying new data network technologies in an enterprise environment.

• Handled the tasks of troubleshooting basic network issues on-site and escalating problem to higher level of support, when required
• Assisted network engineers in resolving complex network outages
• Developed and applied testing and troubleshooting plans
• Handled the tasks of documenting network problems and resolutions for future reference
• Supported and maintained WAN/LAN connectivity