DATACOM SME (Data Communication Subject Matter Expert

Nttlimited Open · verified Sep 10, 2026

4 Locations Full-time Mid-level Communications

Mid-level Communications role at Nttlimited. 4 Locations · full-time.

Role brief

Growth Roles summary, based on the employer's posting.

What you'll do

You design, deploy, and maintain enterprise network solutions
You guide LAN, WAN, WLAN, SD-WAN, VPN, and data center connectivity
You lead modernization, capacity planning, tuning, and optimization efforts
You resolve complex incidents, identify root causes, and handle critical escalations
You create network standards, procedures, documentation, and solution designs

What you bring

At least eight years in network infrastructure, data communication, and enterprise networking
Experience supporting large-scale enterprise networks across LAN, WAN, SD-WAN, VPN, wireless, security, data center, and cloud connectivity
Strong command of TCP/IP, BGP, OSPF, EIGRP, MPLS, DNS, DHCP, and routing and switching
Hands-on experience with Cisco, Juniper, Aruba, Huawei, Fortinet, or equivalent technologies
Strong analysis, communication, stakeholder management, technical leadership, and mentoring skills

Who this fits

This role suits a hands-on networking specialist who can lead technical discussions, support complex environments, and serve as an escalation point for critical issues. You’ll work closely with infrastructure, security, cloud, application, and operations teams. The listing places the role in Spain but does not specify a city or workplace arrangement.

From the employer

Make an impact with NTT DATA
Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can grow, belong and thrive.

Your day at NTT DATA

We are seeking an experienced DATACOM SME (Data Communication Subject Matter Expert) to provide technical leadership and expertise in enterprise networking and data communication technologies. The ideal candidate will be responsible for designing, implementing, optimizing, and supporting complex network infrastructures while ensuring high availability, performance, scalability, and security. The role requires close collaboration with infrastructure, security, cloud, and operations teams to deliver reliable and efficient networking services.

In this role, You will

Design, implement, and maintain enterprise network infrastructure solutions.
Provide subject matter expertise for LAN, WAN, WLAN, SD-WAN, VPN, and Data Center networking technologies.
Lead network transformation and modernization initiatives.
Perform network capacity planning, performance tuning, and optimization.
Troubleshoot complex network issues and drive root cause analysis.
Collaborate with Infrastructure, Security, Cloud, and Application teams to ensure seamless connectivity and service delivery.
Support network security implementations including firewalls, NAC, segmentation, and secure access solutions.
Develop network architecture, standards, operational procedures, and technical documentation.
Participate in incident, problem, and change management processes.
Evaluate new networking technologies and provide recommendations for continuous improvement.

Required Qualifications

Typically 8+ years of experience in Network Infrastructure, Data Communication, and Enterprise Networking.
Strong experience in designing, implementing, managing, and troubleshooting large-scale enterprise network environments.
Experience supporting LAN, WAN, SD-WAN, VPN, Wireless Networking, Network Security technologies, Data Center, and Cloud Connectivity solutions.
Hands-on expertise with leading network technologies and platforms such as Cisco, Juniper, Aruba, Huawei, Fortinet, or equivalent.
Strong knowledge of network protocols including TCP/IP, BGP, OSPF, EIGRP, MPLS, DNS, DHCP, and routing/switching concepts.
Strong understanding of Data Center networking architectures.
Experience in network monitoring, troubleshooting, and performance optimization.
Knowledge of network redundancy, high availability, and disaster recovery concepts.
Excellent analytical, communication, and stakeholder management skills.
Ability to lead technical discussions and mentor junior engineers.

Desired Qualifications

Cisco Certifications (CCNP, CCIE) or equivalent networking certifications.
Juniper (JNCIP/JNCIE), Aruba, Fortinet, or Huawei certifications.
Experience with Cloud Networking including Azure, AWS, and Google Cloud Platform.
Knowledge of Network Automation tools such as Ansible, Python, Terraform, or similar technologies.
Understanding of Network Security frameworks and Zero Trust principles.
ITIL Foundation or Service Management experience.
Experience working in global enterprise environments.
Exposure to Software Defined Networking (SDN) and Network Function Virtualization (NFV).

Job Expectations

Provide expert-level support and guidance for enterprise network environments.
Ensure network availability, reliability, scalability, and security.
Act as an escalation point for critical network incidents and operational issues.
Drive network standardization, governance, and best practices.
Collaborate effectively with business, infrastructure, cloud, and security stakeholders.
Support infrastructure transformation and cloud migration programs.
Deliver technical documentation, operational procedures, and solution designs.
Continuously identify opportunities for network modernization and operational improvements.

Primary Skillset

Data Communication Technologies
Enterprise Networking
LAN / WAN / WLAN
SD-WAN
Routing & Switching
TCP/IP Protocol Suite
BGP, OSPF, EIGRP, MPLS
DNS & DHCP
VPN Technologies
Cisco Networking Solutions
Juniper Networks
Aruba Wireless
Network Security
Firewalls & Secure Access
Data Center Networking
Cloud Networking (Azure, AWS, GCP)
Network Monitoring & Troubleshooting
Network Performance Optimization
Network Architecture & Design
High Availability & Disaster Recovery
Network Automation (Ansible, Python, Terraform)
Incident, Problem & Change Management
Infrastructure Transformation & Modernization

Workplace type:

About NTT DATA
NTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune

Global 100. We are committed to accelerating client success and positively impacting society through

responsible innovation. We are one of the world’s leading AI and digital infrastructure providers, with

unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and

application services. Our consulting and industry solutions help organizations and society move

confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more

than 70 countries. We also offer clients access to a robust ecosystem of innovation centers as well as

established and start-up partners. NTT DATA is part of NTT Group, which invests over $3 billion each

year in R&D.

Equal Opportunity Employer
NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us. Apply today.

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