Advanced Telecom Infrastructure Specialist

Network Design Engineer

We are seeking a highly skilled Network Design Engineer to join our team. As a Network Design Engineer, you will be responsible for designing and architecting 5G transport networks, including mobile backhaul, and datacenter network deployment using Cisco ACI or Juniper fabric technologies.

Design and Architect:

• Develop E2E transport network architectures supporting 4G/5G including fronthaul, Midhaul, and backhaul (IP/MPLS, Segment Routing, EVPN).
• Interface with RAN and Core teams to ensure alignment of transport strategy with overall mobile network architecture.

Datacenter Network Design:

• Design and deploy scalable datacenter networks using Cisco ACI or Juniper QFX-based IP Clos fabrics.
• Experience with Cisco APIC controller — fabric policy configuration, tenant creation, contracts, EPGs/BDs, L3Outs.
• Integration of ACI with VMware vCenter, OpenStack, Kubernetes (CNI), and public cloud extensions.
• Knowledge of micro segmentation, service graph chaining, and policy-based traffic redirection.
• Familiarity with ACI anywhere, Remote Leaf, and Cloud ACI (AWS/Azure) deployments.
• Troubleshooting with ACI health scores, fault logs, and atomic counters.
• Integration with external Layer 3 networks, legacy VLANs, and hybrid ACI deployments.
• Hands-on experience designing IP Clos (spine-leaf) architectures using QFX5K/10K series.
• Deep understanding of EVPN-VXLAN, L3 gateway models, IRB interfaces, and Type-5 route handling.
• Design and implementation of Data Center Interconnect (DCI) using EVPN/overlay routing.
• Deployment and management of Junos Fusion, Junos Space, or Apstra.
• Integration with external BGP peers, centralized routing (Route Reflector), and multi-tenancy.
• Fabric automation using ZTP, Ansible, Python or NETCONF.
• Troubleshooting with monitoring telemetry (JTI), traceoptions, fabric health tools, and vFlow.
• Support virtualization, container networking (Kubernetes), and integration with hybrid cloud.

Solution Architecture & Design:

• Create high-level and low-level network designs (HLD/LLD), network diagrams, and migration strategies.
• Prepare detailed BOQs based on customer or project requirements.
• Evaluate and select appropriate technologies and vendors.
• Hands-on Configuration & Implementation:
• Lead hands-on implementation, configuration, and testing of network infrastructure (routers, switches, fabric controllers).
• Validate designs through lab testing and Proof of Concept (PoC) setups.

Automation & SDN:

• Design and implement network automation using tools such as Ansible, Python, Terraform, or vendor APIs.
• Leverage SDN controllers (APIC, Apstra) to simplify and manage complex network topologies.

Documentation & Governance:

• Maintain up-to-date documentation of network design, configuration, operational processes, and change records.
• Ensure compliance with internal security, performance, and operational standards.

Collaboration:

• Work with cross-functional teams (cloud, security, DevOps, NOC) to deliver integrated solutions.
• Serve as technical SME during customer engagements and internal strategy discussions.

Required Qualifications & Skills:

• Bachelor's or Master's degree in Electronics/Telecom/Computer Engineering or related field.
• 8-10 years of experience in telecom and datacenter network design and deployment.
• Strong understanding of mobile backhaul (IP/MPLS, Ethernet, PTP/SyncE), ORAN architecture, and 5G architecture.
• In-depth experience with Cisco ACI and/or Juniper QFX/EVPN/VXLAN fabrics.
• Proficiency in L2/L3 protocols, BGP, OSPF, IS-IS, EVPN, SR-MPLS/SRv6, QoS, multicast, and security.
• Hands-on configuration experience with Cisco IOS-XR, NX-OS, Junos, etc.
• Experience in developing and maintaining automation scripts (Python, Ansible, YANG models).
• Knowledge of tools like Git, Jenkins, NetBox, and CI/CD pipelines is a plus.
• Strong experience in creating HLD, LLD, and BOQ documents.
• Excellent communication and stakeholder management skills.

Preferred Certifications:

• Cisco CCNP/CCIE, Juniper JNCIP/JNCIE, or equivalent expert-level certifications.
• ACI Specialist, JNCIS-DC, or DevNet certifications.

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