Network Architect

Advance Digital Systems
2 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior

Job location

Tech stack

iOS
Application Layers
Border Gateway Protocol
Catalyst
Complex Networks
Computer Networks
Data Centers
Software Debugging
Monitoring of Systems
Network Security
Pcap
Network Architecture
Routing
Network Segmentation
Cisco Nexus Switches
Open Shortest Path First
Wireshark
Identity Services Engine
Network Access Control
Nx-os
Data Center Networking
Firepower
Cisco networks

Job description

We are seeking an highly experienced Senior Network Architect to lead the design, evolution, and operational excellence of a large-scale enterprise network infrastructure. This role combines deep routing expertise with hands-on engineering to support a highly available, secure, and scalable environment spanning data centers, campus networks, and cloud platforms. The architect will play a critical role in modernizing network architecture, enhancing visibility and security, and ensuring seamless integration of emerging technologies-all while maintaining operational stability in live production environments.

Position Responsibilities

· Own and evolve the enterprise routing architecture, with deep expertise in BGP and OSPF, including route policy design, traffic engineering, convergence optimization, and failure handling at scale.

· Design, implement, and operate modern data center fabrics (spine-leaf architectures, VXLAN/EVPN), ensuring scalability, resilience, and operational simplicity.

· Lead and execute complex network changes, migrations, and upgrades in production environments with minimal to no service disruption.

· Serve as the highest level of technical escalation, driving complex issues from initial symptoms to root cause across routing, switching, security, and application layers.

· Perform advanced troubleshooting, including packet-level analysis (Wireshark/PCAP) and system-level debugging in high-pressure production scenarios.

· Design and enhance network segmentation, access control, and visibility leveraging technologies such as Cisco ISE and Gigamon.

· Integrate and support secure edge and access solutions, including platforms such as Zscaler and Cisco Firepower Threat Defense (FTD).

· Evaluate current network designs and proactively recommend improvements to reliability, performance, scalability, and operational efficiency.

· Collaborate with cross-functional teams including security, cloud, and application teams to ensure cohesive and secure network architecture.

· Maintain comprehensive documentation of network architecture, standards, and operational procedures.

Requirements

· Demonstrated CCIE-level expertise in networking concepts and technologies (certification preferred but not required).

· Deep, hands-on experience with routing protocols, particularly BGP and OSPF, in large-scale production environments.

· Strong experience designing and operating data center networks using spine-leaf architectures and VXLAN/EVPN overlays.

· Extensive hands-on experience with Cisco platforms, including Nexus, Catalyst, NX-OS, and IOS-XE.

· Proven experience with Network Access Control (NAC) solutions such as Cisco ISE or equivalent platforms.

· Experience with network visibility and monitoring tools such as Gigamon or similar technologies.

· Solid understanding of secure access solutions and next-generation firewalls (e.g., Zscaler, Cisco FTD).

· Deep knowledge of TCP/IP protocols and packet-level behavior, with advanced troubleshooting capabilities using tools such as Wireshark.

· Strong analytical, problem-solving, and decision-making skills, with the ability to operate effectively in high-pressure environments.

· Excellent communication and collaboration skills, with the ability to bridge architecture and operations teams.

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