Network & Security Engineer

NTT Global Data Centers & Cloud Infrastructure India Private Limited; Mumbai; On-site; INR 1,800,000 - 3,000,000; Full time

Job summary

NTT Global Data Centers & Cloud Infrastructure India Private Limited in Mumbai seeks a seasoned Network and Security Engineer to lead enterprise network and firewall initiatives across on‑prem, cloud, and data centre environments.

You will design, configure, and operate networks, enforce security measures, monitor for threats, and collaborate with cross‑functional teams to deliver scalable, secure network solutions.

Qualifications

• Bachelor's degree in Information Technology or Computer Science.
• Cloud networking certifications (Azure, AWS, Google).
• CCNA/CCNP/JNCIA certifications beneficial.
• CCNA/CCNP/JNCIA certifications preferred.

Responsibilities

• Designs and plans network solutions, including LAN, WAN, data centre, and cloud networks.
• Develops network architectures that meet current and future requirements.
• Configures, deploys, and manages network devices such as routers, switches, firewalls, load balancers, and wireless controllers.
• Implements and maintains network services and protocols.
• Implements and enforces network security measures, including firewalls, intrusion detection/prevention systems, access controls, and VPNs.
• Monitors network traffic for security threats and vulnerabilities.
• Diagnoses and resolves complex network issues using advanced troubleshooting and monitoring tools.
• Collaborates with cross‑functional teams and communicates technical information effectively.

Skills

Networking concepts

Routers and switches

Firewalls

Cloud networking

Security operations

Documentation

Project management

Education

Bachelor's degree in Information Technology or Computer Science

Cloud networking certifications (Azure, AWS, Google)

CCNA/CCNP/JNCIA certifications beneficial

Tools

Network monitoring tools

Firewall management tools

Job description

Make an impact at NTT Global Data Centers

Join NTT Global Data Centers and be part of a team that drives innovation and sustainability in the digital world. With over 150 data centers across more than 20 countries globally, we offer unparalleled opportunities to work on cutting‑edge technology and transformative projects. Experience a collaborative, innovative, and inclusive workplace where your ideas are valued, and your growth is supported.

Your role at a glance

The Network and Security Engineer is a highly experienced Network Security Engineering role with deep expertise in enterprise network and firewall technologies, network security architecture, cloud networking, and security operations. This role demands to be skilled in leading complex network transformation initiatives, implementing Zero Trust and segmentation strategies, managing next‑generation firewalls, and ensuring the resilience, performance, and security of global network infrastructures across on‑premises, cloud, and data centre environments.

Key Roles and Responsibilities

• Designs and plans network solutions, including LAN, WAN, data centre, and cloud networks
• Develops network architectures that meet the organisation's current and future requirements
• Configures, deploys, and manages network devices such as routers, switches, firewalls, load balancers, and wireless controllers
• Implements and maintains network services and protocols
• Implements and enforces network security measures, including firewalls, intrusion detection/prevention systems, access controls, and VPNs
• Monitors network traffic for security threats and vulnerabilities
• Diagnoses and resolves complex network issues, utilising advanced troubleshooting techniques and network monitoring tools
• Analyses network performance data to identify and address bottlenecks and irregularities
• Optimises network performance by analysing traffic patterns, adjusting configurations, and implementing quality of service (QoS) measures
• Creates and maintains comprehensive network documentation, including network diagrams, configurations, standard operating procedures, and incident reports
• Collaborates with cross‑functional teams, including systems administrators, security teams, application developers, and business stakeholders
• Communicates technical information effectively to both technical and non‑technical audiences
• Manages/participates in network‑related projects, including network upgrades, migrations, and expansions
• Develops project plans, define objectives, and ensure successful project execution
• Stays updated with emerging networking technologies and industry trend
• Evaluates and recommends new tools, technologies, and solutions that enhance the organisation's network capabilities
• Works with vendors to evaluate, procure, and manage networking equipment, services, and support contracts
• Utilises network monitoring and analysis tools to proactively monitor network health, identify issues, and respond to incidents
• Estimate network capacity requirements and plan for scalability to accommodate business growth and changing needs

Knowledge, Skills and Attributes

• Strong understanding of networking concepts, protocols, architectures, and services
• Proficiency in configuring and managing network devices such as routers, switches, firewalls, load balancers, and wireless controllers
• In‑depth knowledge of network protocols and technologies such as BGP, OSPF, VLANs, VPNs, QoS, and security protocols
• Hands‑on experience with network monitoring and analysis tools
• Strong documentation and communication skills to convey technical information effectively
• Proficient in network administration and configuration tools
• Analytical problem‑solving skills to diagnose and resolve complex network issues
• Strong project management skills to lead and contribute to network projects
• Familiarity with network security principles and best practices

Academic Qualifications and Certifications

• Bachelor's degree or equivalent in Information Technology, Computer Science, or a related field
• Relevant cloud provider Network Administration certification (Azure, Google, Amazon)
• Relevant certifications such as CompTIA Network+, Cisco Certified Network Associate (CCNA), or Juniper Networks Certified Associate (JNCIA) are beneficial
• Relevant certifications such as Cisco Certified Network Associate (CCNA), Cisco Certified Network Professional (CCNP), Juniper Networks Certified Internet Associate (JNCIA), or equivalent certifications are preferred

Required Experience

• Seasoned relevant experience in network engineering or a related role
• Seasoned experience working in a networking environment
• Seasoned experience with network security
• Seasoned WAN and LAN experience
• Seasoned experience with wireless equipment, protocols, standards, and wireless LAN design
• Seasoned experience with cloud networking (AWS, Azure, etc.)

Who we are

As the third largest data center provider, we operate over 150 data centers in more than 20 countries and regions. We understand that every business – large and small – has its own unique needs and goals. We offer local‑to‑global data center expertise, aligned with our connected platform of AI‑ready data centers to create solutions that enable our clients to seamlessly scale their digital businesses, anywhere and anytime. Data centers are the foundation of the digital world and at NTT Global Data Centers, we are one of the largest providers across the globe. We offer a wide variety of exciting and challenging careers that deliver opportunities to shape our ever‑changing world. Our diverse, inspiring workforce is the heart and soul of our company, providing the best experience for our clients every day. By bringing together our global capabilities and local expertise, we help our clients achieve their goals, anywhere in the world. Together, we can accomplish the extraordinary and work to create a more sustainable world with rewarding benefits for everyone – clients, employees, investors, partners, and communities.