Senior Network Engineer

OSI Digital; Hyderabad; On-site; INR 800,000 - 1,200,000; Full time

Job summary

OSI Digital is seeking a Senior Network Engineer in Hyderabad, India. The ideal candidate should have 6-10 years of experience in network design, R&S, and security. Responsibilities include managing a large datacenter network, troubleshooting incidents, and maintaining hardware/software.

Key skills required are expertise with PaloAlto Firewalls, F5 Load Balancers, and understanding SD-WAN technology. Preferred candidates will have CCNP certification and strong analytical skills.

Qualifications

• 6-10 years of hands-on experience with R&S, Network Security, Wireless, network designing.
• Strong experience in troubleshooting network and security related issues.
• In-depth knowledge of Layer2 technologies like STP, MST, VLANs.

Responsibilities

• Configure, manage, monitor and maintain a large datacenter/enterprise network.
• Troubleshoot and manage incidents effectively.
• Manage and upgrade existing network hardware and software.

Skills

Network Security

Routing and Switching

PaloAlto Firewalls

F5 Load Balancer

SD-WAN

Cisco/Aruba Wireless

Layer2 technologies

Education

CCNP Certification

Tools

Cisco ASA

Ansible

Python

Job description

Job Title: Senior Network Engineer

Experience: 6-10 Years

Location: Hyderabad, India

OSI Digital is looking for a Network Engineer who must have 6-10 years of hands‑on experience with R&S, Network Security, Wireless, network designing, implementing, supporting.

A successful person will advance to the level of Associate Network Lead and Network Lead as well as receive training covering numerous cloud technologies (AWS, OCI, and Azure) and automation tools (Ansible & Python).

Responsibilities

• Configure, manage, monitor and maintain a large datacenter/enterprise network.
• Troubleshoot and manage incidents.
• Maintain and upgrade existing network hardware and software.
• Maintain and upgrade existing firewalls, VPNs, MPLS, and other WAN connections.
• Manage and maintain IPSEC VPN, GRE tunnels & VTI tunnels.
• Co‑ordinate with service providers for site commissioning.
• Provide Level‑3 Network Engineering support to manage day‑to‑day network operations and project works.

Required Skills

• Strong hands‑on experience in handling, troubleshooting network and security related issues.
• Experience managing PaloAlto Firewalls, Cisco ASA (Adaptive Security Appliance) – configuring, maintaining, securing, monitoring, troubleshooting, and optimizing the firewalls for network integrity and safety.
• Experience with F5 Load Balancer (specifically F5 BIG‑IP) – deploying, configuring, managing, and troubleshooting load balancing and application delivery services for high availability, reliability, and optimal performance.
• Experience with installation, configuration and upgrades of LAN/WAN infrastructure including routers, switches, wireless (Cisco/Aruba), VPN (IPSEC), firewall, and cloud network gear.
• Good knowledge and hands‑on experience of SD‑WAN (Viptela / Silver‑peak / VeloCloud / Meraki/Fortinet).
• Good understanding of spine & leaf DC architecture, VXLAN, and Cisco ACI concepts.
• Knowledge and real‑time experience with routing protocols (BGP, OSPF, static, etc.).
• In‑depth knowledge of Layer2 technologies (STP, MST, VLANs, etc.).
• Experience with creation, management, and maintenance of standard operating procedures (SOP).
• Preferred CCNP certification.