Network & Security Engineer

Posted 5 Days Ago
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Mumbai, Maharashtra, IND
In-Office
Senior level
Cloud • Information Technology • Other • Security • Software
The Role
Designs, architects, deploys, and secures enterprise LAN, WAN, data center, and cloud networks. Manages routers, switches, firewalls, load balancers, wireless systems, VPNs, and security controls while monitoring threats and resolving complex issues. Leads network upgrades, migrations, capacity planning, documentation, vendor management, and transformation initiatives involving Zero Trust and segmentation. Requires strong network security, cloud networking, troubleshooting, communication, and project leadership skills.
Summary Generated by Built In

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 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.

Skills Required

  • Bachelor's degree or equivalent in Information Technology, Computer Science, or a related field
  • Relevant cloud provider network administration certification such as Azure, Google Cloud, or Amazon Web Services
  • Seasoned 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, including AWS and Azure
  • CompTIA Network+ certification
  • Cisco Certified Network Associate certification
  • Cisco Certified Network Professional certification
  • Juniper Networks Certified Associate certification
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The Company
HQ: Tokyo
18,921 Employees

What We Do

NTT Ltd. is a leading, global technology services company. We’re here to enable the connected future. We come together to make the world a better place, and every day we use the power of technology to make it happen. We employ curious people who are ready to change the world. Through the work we do with our clients and in our communities, we find ways that technology can make a positive impact. We call it technology for good. That’s our focus and it extends well beyond the bottom line. We believe in using technology for good. This means helping organizations and society transform and move into the future with a partner they can trust. At the heart of our business are relationships built on loyalty, commitment and a shared belief in what’s possible when we work together: a better world for us all to live in. Working with organizations around the world, we achieve business outcomes through intelligent technology solutions. For us, intelligent means data driven, connected, digital and secure. Through our full range of unparalleled capabilities, we empower people, strategy, operations and technology, while our platforms provide a single view across hybrid environments. This gives our clients better insight to make the right decisions at the right time and achieve their business modernization and transformation goals. A new idea becomes a great idea when it helps to make the world a better place. We’re constantly innovating. It is, and always has been, the essence of what sets us apart. We harness the collective effort of our people, together with external innovators and innovations, to drive excellence through the technologies we integrate and the services we deliver. Technology enables connection. And connections create understanding. The result is connected cities, factories, healthcare, agriculture, conservation, and even connected sport. Together we enable the connected future. Everything is iNTTerconnected.

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