Overview (Summary of the Role)
The Senior Network Engineer is responsible for analysing, designing, installing, configuring, maintaining and repairing of network infrastructure and application components. The incumbent performs a wide variety of evaluation, maintenance, installation and training tasks to ensure the computer network performance meets the satisfaction of the Company and users. The incumbent also provides direction, information and recommendations on network configurations and installations.
As a Senior Network Engineer, you'll will also provide design, configuration and escalated problem management in client environments of medium complexity. This includes defining system architectures for business opportunities during the project take on phase, designing and developing integration plans and create links for multi-platform, multi-vendor business solutions.
You'll also identify and develop technology related opportunities and integrate IT resources to fulfil project requirements. You would be able to compile technical specifications to explain the advantages and disadvantages of options leading to the final solution and are able to create alternative solutions as backup planning.
Responsibilities
- Responsible for the day to day operation and administration on network and security infrastructure; including performance, bandwidth monitoring and ensure uptime of all devices.
- Perform installation, configuration, troubleshooting and diagnostic on network and security appliances. Identify and correct malfunction issue if required.
- Responsible for Network related incident and change management.
- Responsible for the commission, de-commissioning and tech refresh of network devices.
- Manage the smooth delivery of network operations in accordance with stipulated Service Level Agreements.
- Provide firmware updates for network devices.
- Ensure network infrastructure complies with security policies.
- Prepare and maintain assets to ensure availability and update of capacity reports.
- Practice network asset management, including maintenance of device inventory, related documentation (Process and Procedural documents) and technical specifications information.
- Develop technical training materials and conduct training programs and educate engineers on basic technical details.
- Participate in technical refresh, deployment project, preventive maintenance and ad-hoc downtime.
- Perform vulnerability assessment and resolve vulnerability accordingly.
- Responsible for the configuration and support of backbones connection over DirectConnect (AWS) and ExpressRoute (Azure).
- Implement Network Projects: Participate in various network projects. This involves planning, implementation, testing, and documentation of network enhancements.
- Assisting with design and support of multi-server environments including cloud platforms such as - Azure, AWS (Amazon Web Services), VMware, EHC (Enterprise Hybrid Cloud), NSX (Network Virtualization and Security platform) by developing High-Level network designs (HLDs) and recommend best security practices.
- Monitoring and analysing network performance and offer support to troubleshoot issues related to a breadth of networking technologies including Cisco routers, switches, Palo Alto firewalls, and wireless solutions within the network infrastructure scope.
- Any other ad-hoc duties as required or assigned.
Requirements
- Bachelor's Degree or Diploma in Information Technology/Information Systems/Computer Science, Business IT, or its equivalent.
- Minimum 7 years of relevant working experience, with the last 3 years in large-scale network architecture design, deployment, and implementation.
- At least 5 years of experience in Network Operations Support, Administration, and implementation.
- Good knowledge of the following, but not limited to:
o Firewall technologies – Cisco ASA, Fortigate, Palo Alto (high availability, virtual firewall concept)
o IP load balancer
o Access, Distribution, and Core Switches
o Router configuration (high availability)
o LAN and WAN administration
o Wireless Controllers and Access Points
o Network Access Control Devices (ie. ClearPass Policy Manager or Cisco ISE)
- Knowledge of network documentation including network diagrams, configuration templates, SOP, technical presentations, capacity, and uptime reports as required.
- Must have in-depth and hands-on technical experience in routing and switching, and firewalls.
- Hands-on installation experience in Network (LAN, WAN, VoIP, WIFI, Wireless Controller, WIFI Access Point, Firewalls, Security Gateways, VPN, 802.1x protocol, VLANs, L2/3 Switch).
- Hands-on experience with routing protocols and control plane technologies like BGP, OSPF, OMS, LISP, IP SLA, PBR, OTV, ACI.
- Sound experience in SDN, Routing, Switching, and Wireless LAN (Cisco WLC and Meraki), Access Point, cisco Prime, NAC, and Cisco ISE-based wireless network deployments.
- Strong experience in design, architecture, configurations, and administration of Cisco ACI, SDWAN, SDA and traditional enterprise Networks.
- Strong experience with troubleshooting complex network issues and good hands-on well know tools like packet analyzers.
- CCNA certified (mandatory).
- Certifications in CCNP and CCIE preferred, CISSP and/or ITIL highly advantageous.
- Understanding wireless technologies like standalone and controller-based APs, 802.11a, 802.11b, 802.11g, 802.11n, 802.11i, 802.11ac and ax(wi-fi 6) standards, WLAN antennas, WLAN Security (“WEP”, WPA & WPA2 / AES, 802.1x, EAP, PEAP, LEAP, TKIP), BYOD, etc.
- Knowledge of Cloud technologies below will be an advantage:
o Experience in network automation via scripting (e.g. Python, Ruby) or tools (e.g. Ansible, Algosec, Chef, Salt, Chef, YAML). Familiarisation with “Network as code” or “infrastructure as code”, SD-WAN, and SDAccess concepts.
o Experience in Hypervisors network connectivity and Cloud connectivity (AWS, Azure, Google)
- Strong analytical and problem-solving skills, combined with the ability to provide a quick resolution to problems.
- Proficient in troubleshooting skills.
- Good exposure to network monitoring, configuration, traffic analysis, network discovery, and management tools.
- Experienced in leading customer facing consulting, assessment, and transformation projects.
- Able to guide the team in resolving network performance, capacity, downtime, and other P1-related issues.
- Effective communication skills.
- Self-driven and able to work independently.
- Willing to work after normal office hours during migration windows and project implementations
