DATACOM SME (Data Communication Subject Matter Expert; all genders)
NTT DATA, Inc.
Don’t send a generic resume — generate a resume and cover letter tailored to this exact role.
Job summary
NTT DATA Services in London, UK, seeks an experienced DATACOM SME to design, implement and optimize LAN/WAN, SD-WAN, VPN, and data center networking. This role collaborates with security, cloud, and operations teams to deliver reliable, scalable networking services.
The successful candidate will lead modernization efforts, provide expert guidance on network protocols, and mentor engineers while ensuring high availability and security across enterprise environments.
Qualifications
- Typically 8+ years of experience in Network Infrastructure, Data Communication, and Enterprise Networking.
- Strong experien ce 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.
Responsibilities
- 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.
Skills
Tools
Job description
Select how often (in days) to receive an alert: Create Alert
Date: Sep 30, 2026
Location: London, LND, GB
Company: NTT DATA Services
Competitive salary | UK and/or other European countries: Fully remote possible
At NTT DATA, we know that with the right people on board, anything is possible. The quality, integrity, and commitment of our employees are key factors in our company’s growth, market presence and our ability to help our clients stay a step ahead of the competition. By hiring the best people and helping them grow both professionally and personally, we ensure a bright future for NTT DATA and for the people who work here.
NTT DATA is currently looking for a DATACOM SME (Data Communication Subject Matter Expert; all genders) remote for our growing team in the UK and/or other European countries.
We are seeking an experiencedDATACOM 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.
- 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.
- 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.
- 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).
- 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.
- Data Communication Technologies
- LAN / WAN / WLAN
- SD-WAN
- Routing & Switching
- TCP/IP Protocol Suite
- BGP, OSPF, EIGRP, MPLS
- DNS & DHCP
- VPN Technologies
- Cisco Networking Solutions
- Aruba Wireless
- Network Security
- Firewalls & Secure Access
- Data Center Networking
- Network Monitoring & Troubleshooting
- Network Performance Optimization
- High Availability & Disaster Recovery
- Network Automation (Ansible, Python, Terraform)
- Incident, Problem & Change Management
- Infrastructure Transformation & Modernization
Our people are the most critical component of our long-term success and their health and wellbeing are our priority. You will enjoy a comprehensive, locally competitive benefits package.
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 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners.NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.
Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, https://us.nttdata.com/en/contact-us .
NTT DATA endeavors to make https://us.nttdata.com accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact us at https://us.nttdata.com/en/contact-us .
NTT DATA is an equal opportunity employer.
Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.
For our EEO Policy Statement, please click here .
If you'd like more information on your EEO rights under the law, please click here .
For Pay Transparency information, please click here .
#LI-NorthAmerica
Job Segment: Data Center, Cloud, Database, Network, Consulting, Technology
'/%3e%3cpath%20d='M101.744%2012.4726L102.894%2016.1947L99.0021%2013.2201L101.744%2012.4726ZM105.3%208.40937H100.488L99.0026%203.59473L97.5116%208.41047L92.7%208.40385L96.5965%2011.3834L95.1055%2016.1942L99.0021%2013.2196L101.408%2011.3834L105.3%208.40992V8.40937Z'%20fill='white'/%3e%3cdefs%3e%3clinearGradient%20id='paint0_linear_5593_1381'%20x1='90'%20y1='9.44471'%20x2='99'%20y2='9.44471'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20stop-color='%2300AD70'/%3e%3cstop%20offset='0.998594'%20stop-color='%2300B67A'/%3e%3cstop%20offset='1'%20stop-color='%23DCDCE6'/%3e%3c/linearGradient%3e%3c/defs%3e%3c/svg%3e){kind=small}
