Networking and Security Technical Services Lead

NTT DATA; Greater London; On-site; GBP 55,000 - 95,000; Full time

Benefits offered by this job

Flexible work options

Learning and development

Job summary

NTT DATA is seeking an experienced Implementation Engineer to lead the design and hands-on delivery of complex network and security solutions across greenfield and brownfield environments in the UK. You will produce professional HLD/LLD, develop detailed implementation plans, and drive changes with minimal risk.

Responsibility includes coordinating engineers, mentoring juniors, and presenting technical designs to senior leadership.

Qualifications

• Advanced understanding of technical design and business principles.
• Advanced project fundamentals demonstrated through installations and assignments.
• Excellent verbal communication and client engagement skills.
• Experience leading multi-vendor network and security implementations.

Responsibilities

• Lead design and hands-on implementation of complex network and security solutions.
• Produce HLD and LLD documentation for client sign-off.
• Develop detailed implementation plans and change records with risk minimisation.
• Author operational runbooks for handover to operations teams.
• Diagnose and resolve complex network and security incidents with escalation as needed.
• Coordinate engineers and technicians to meet targets and quality standards.
• Present designs and strategies to both technical and non-technical stakeholders.

Skills

Technical design

Project management

Client engagement

Networking

Leadership

Communication

Mentoring

Education

Bachelor's degree in IT/Computing

Tools

Cisco

Aruba

F5

Job description

Salary: £55,000 - 95,000 per year

Requirements

• Advanced understanding and appreciation of technical design and business principles.
• Advanced project fundamental and administration ability.
• Advanced project fundamentals demonstrated through the execution of installations and other assignments.
• Advanced customer engagement skills.
• Advanced relevant domain specialist knowledge.
• Excellent verbal communication skills.
• Client-focused with a proactive approach to solving problems.
• Advanced ability to coach, mentor, and provide guidance to team members.
• Ability to take ownership as technical lead during the project lifecycle.
• Bachelors degree or equivalent in Information Technology, Computing, or a related field.
• Professional-level certification in networking technologies such as Cisco, Juniper, Aruba, F5, CCIE, JNCIE, ACMP, or similar.
• Cisco DevNet certification is desirable.
• Advanced work experience in technical implementation engineering, specific to networking technologies.
• Advanced experience engaging with clients and conducting presentations.
• Advanced report writing experience.
• Advanced project management experience.
• Advanced experience in networking technologies such as routing, switching, wireless, SDI distribution, and core and access layers.
• Advanced experience in diagnosis and troubleshooting.

Responsibilities

• Lead the design and hands-on implementation of complex, multi-vendor network and security solutions across greenfield and brownfield environments.
• Produce High-Level Design (HLD) and Low-Level Design (LLD) documentation to a professional standard for internal review and client or stakeholder sign-off.
• Develop detailed implementation plans and change records, ensuring alignment with change management processes and minimal operational risk.
• Author comprehensive operational runbooks to support handover to operations and ongoing support teams.
• Perform design validation, proof-of-concept (PoC) testing, and pre/post-implementation verification.
• Configure, deploy, and optimise network and security infrastructure across a range of vendor platforms and technology domains.
• Diagnose and resolve complex, multi-layer network and security incidents, providing expert-level technical escalation support.
• Conduct technical assessments and capacity planning reviews, identifying risks and recommending improvements.
• Escalate unresolved problems and issues to the relevant third parties.
• Delegate lower-complexity tasks to engineers and technicians.
• Coordinate the activities of engineers in line with performance targets, lead by example, and monitor the quality of engineers and technicians work when required.
• Act as the primary technical point of contact for stakeholders across projects, providing clear and timely communication on design decisions, project status, and risk.
• Coach and mentor more junior Implementation Engineers and Technicians.
• Present technical designs and implementation strategies to both technical and non-technical audiences, including senior leadership.
• Collaborate with project managers, solution architects, client network and security teams, and operations to ensure seamless delivery.
• Manage technical scope, expectations, and dependencies throughout the project lifecycle.
• Engage vendors for priority escalations or bugs found during deployments.

Technologies

• AI
• Aruba
• Cisco
• Support
• Network
• Security

More

We are NTT DATA, a $30+ billion business and technology services, AI and digital infrastructure leader co-innovating with clients and partners globally for business and societal impact. We serve 75% of the Fortune Global 100, operate in over 70 countries, and are recognized as a Global Top Employer. We invest over $3 billion annually in R&D through NTT Group. We offer tailored benefits that support physical, emotional, and financial wellbeing, continuous learning and development opportunities, and flexible work options. We are committed to equal opportunities, equity, diversity, and inclusion, and we actively support applicants with disabilities and long-term health conditions.

last updated 36 week of 2026