Network and Security Engineer

NTT Global Data Centers; Mumbai City; On-site; INR 1,600,000 - 2,800,000; Full time

Job summary

NTT Global Data Centers seeks an experienced Network and Security Engineer to lead complex network transformations across on‑prem, cloud, and data centre environments. You will architect secure, scalable networks, implement Zero Trust, and manage next‑generation firewalls while ensuring resilience and performance for global infrastructures.

The role requires deep expertise in enterprise networking, security operations, and cross‑functional collaboration with admins, developers, and stakeholders.

Qualifications

• Bachelor's degree in IT/CS or related field.
• Relevant cloud networking certifications preferred (Azure, AWS, Google).
• CCNA/CCNP/JNCIA or equivalent certifications beneficial.

Responsibilities

• Designs and plans LAN/WAN, data centre, and cloud networks.
• Configures and manages routers, switches, firewalls, and load balancers.
• Implements and maintains network security measures incl. VPNs and IDS/IPS.
• Monitors traffic to detect threats and troubleshoot complex issues.
• Develops documentation, diagrams, and SOPs for network infra.
• Leads network projects, migrations, and capacity planning.

Skills

Networking concepts

Router configuration

Firewall configuration

Network security

Cloud networking

Network monitoring

Documentation

Project management

Security operations

QoS and QoS design

Education

Bachelor's degree in IT/CS

Cloud provider Network Administration certification

CCNA / CCNP / JNCIA or equivalent

CCNA / CCNP / JNCIA preferred

Tools

Wireshark

SolarWinds

Firewall management tools

VPN technologies

Job description

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.

What we are looking for

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
• Utilise 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 in wireless equipment, protocols, standards, and wireless LAN design
• Seasoned experience with cloud networking (AWS, Azure, etc.)

Who we are

As the third largest data centre provider, we operate over 150 data centres 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 centre expertise, aligned with our connected platform of AI-ready data centres to create solutions that enable our clients to seamlessly scale their digital businesses, anywhere and anytime.