Senior Network Consultant

Job Title: Senior Network Consultant (L3/L4)

Location: Remote / Chennai / Gurugram

Experience: 10+ Years

Shift : As per project requirement

Position Summary:

We are seeking a highly experienced and hands-on Senior Network Engineer (L3/L4) who can own, lead, and drive all aspects of network engineering — from architecture and design to implementation, operations, and support. This is a strategic, senior-level technical role requiring deep expertise across routing, switching, firewalls, network security, cloud and hybrid connectivity, and vendor-agnostic infrastructure management.

The ideal candidate should be capable of handling the full network lifecycle independently and be a thought leader in designing resilient, secure, and high-performance networks for global enterprise environments.

Key Responsibilities:

Architecture & Design

• Lead the end-to-end design and architecture of enterprise-class networks (LAN, WAN, SD-WAN, cloud, data center).
• Design scalable and secure network topologies, integrating routing protocols (BGP, OSPF, EIGRP), VLANs, subnetting, ACLs, and QoS.
• Define network blueprints, migration plans, and future-state architectures for global and hybrid IT environments.
• Architect and implement high availability and disaster recovery solutions using redundancy, clustering, and failover strategies.
• Integrate on-prem, hybrid, and cloud environments (AWS, Azure) into cohesive network solutions.

Implementation & Operations

• Deploy and configure network hardware from multiple vendors: Cisco, Aruba, HP, Juniper, Avaya, etc.
• Manage and optimize Layer 2/3 infrastructure including routers, switches, wireless, VPN, and WAN optimization tools.
• Configure and maintain firewalls and security appliances: Cisco ASA, Palo Alto, Fortinet, FMC, Juniper FTD, etc.
• Build and manage VPNs (IPSec, SSL, GRE), segmentation (micro/macro), and SD-WAN deployments.
• Monitor network health, performance, and capacity using advanced tools; create dashboards and alerts.

Security & Compliance

• Drive network security initiatives, including design and implementation of intrusion prevention systems (IPS), NAC, and Zero Trust architecture.
• Ensure compliance with internal and external security standards through network hardening, audits, and regular reviews.
• Design and maintain secure remote access and multi-site connectivity strategies.
• Perform security assessments and vulnerability mitigation related to network layers.

Troubleshooting & Support

• Act as the highest escalation point (Tier 3/4) for complex network issues, including packet capture, traffic analysis, and protocol debugging.
• Lead root cause analysis (RCA) efforts for critical incidents, post-mortems, and corrective/preventive actions.
• Work closely with vendors to resolve hardware/software bugs and proactively manage lifecycle support contracts.

Documentation & Reporting

• Maintain detailed documentation of network infrastructure, including diagrams, IP schemas, configuration repositories, and SOPs.
• Generate performance and availability reports; present findings and recommendations to both technical and business stakeholders.

Leadership & Collaboration

• Collaborate with enterprise architects, cybersecurity teams, DevOps, and application owners to align network infrastructure with business goals.
• Interface with customers and leadership on solution designs, RFPs, PoCs, and implementation roadmaps.
• Mentor junior and mid-level engineers; lead knowledge-sharing initiatives and develop playbooks for best practices.

Required Skills & Qualifications:

• Minimum 10+ years of experience in enterprise networking with strong architecture and troubleshooting background.
• Proven expertise in multi-vendor environments: Cisco, HP, Aruba, Juniper, Avaya.
• Advanced knowledge of routing protocols (BGP, OSPF, EIGRP, etc.) and switching technologies (VLANs, STP, VTP, port-channeling).
• Strong experience with firewalls and network security appliances (Cisco ASA, Palo Alto, FMC, Juniper FTD, etc.).
• Deep understanding of high availability, load balancing, VPNs, cloud networking (AWS/Azure/GCP), and SD-WAN.
• Strong scripting/automation skills (Python, Ansible) are a plus.
• Network certifications such as CCNP/CCIE, JNCIP/JNCIE, PCNSE, AWS Networking Specialty are highly desirable.
• Experience with enterprise monitoring tools (SolarWinds, Nagios, Wireshark, PRTG, etc.).
• Excellent communication, documentation, and leadership skills.

Job Type: Contractual / Temporary

Contract length: 12 months

Pay: Up to ₹3,500,000.00 per year

Application Question(s):

• Rate your English communication Skills out of 10 (1 is lowest and 10 is highest)?
• Please mention your top major Technical skills on which you can take up the role ?
• Current mode of work (remote/hybrid/office)?
• Are you able to take up consultant role for next 6 months to 12 months ?
• What is your preffred Shifts where you can manage the consultant project ?
• Current Location?
• What type of global clients you have handled ?

Work Location: Remote