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ntt data services singapore pte. ltd.

Beach Road, Singapore Country / Global

Network Engineer

Job Description

Job Summary

Lead and support enterprise network infrastructure projects focusing on Cisco ACI, routing, switching, wireless, and firewalls. Drive migration plans, integrate service appliances, and ensure network performance and compliance in a 24x7 environment.

Responsibilities

Design, implement, and support Cisco ACI network architecture components to optimize data center network performance

Develop and execute migration plans from traditional data center network designs to Cisco ACI environments

Integrate service appliances such as Application Delivery Controllers and Palo Alto firewalls into Cisco ACI deployments

Analyze and manage inter-tenant and intra-tenant traffic flows and contracts to ensure secure and efficient network segmentation

Configure and troubleshoot L2 outs, L3 outs, and VMM integration within data center networks

Manage routing, switching, wireless LAN/WAN infrastructure using protocols including EIGRP, OSPF, BGP, and standards such as IEEE 802.11a, 802.1x, STP, MSTP, RSTP, HSRP, and VRRP

Ensure all network configurations comply with established standards and review log files for network health monitoring

Deploy, maintain, and troubleshoot enterprise-level, mission-critical network infrastructure components including SD-WAN and wireless systems

Collaborate with project managers and cross-functional teams to deliver successful network projects aligned with business objectives

Own and resolve escalated support tickets and service requests using ServiceNow, documenting all actions and outcomes

Apply ITIL and Change Management processes to maintain network stability and service quality

Communicate effectively with customers, end users, partners, and associates to provide excellent customer service and technical support

Adapt to changing environments, work independently, and demonstrate flexibility including willingness to travel as required

Participate in rotating on-call support, manage support queues, and perform network system analysis and reporting in a 24x7 operational setting

Required competencies and certifications

Minimum 8 years managing LAN and WAN infrastructures

Minimum 8 years experience in routing, switching, Riverbed, and wireless technologies

Minimum 8 years experience with Palo Alto firewall technologies

Minimum 5 years experience working with Cisco ACI

Preferred competencies and qualifications

Hands-on experience with VELO Cloud and wireless technologies

Proven adaptive communication, presentation, and leadership skills

Project experience in Software Defined Networking (SDN) infrastructure and networking

Bachelor's degree in Computer Science or equivalent work experience

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