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Senior Network Security Engineer (Deployment) - Fortinet NSE4 or above

Company:
CACI Ltd
Location:
London, Greater London, United Kingdom
Posted:
May 04, 2025
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Description:

A Senior Network Security Engineer is required to join the London Deployment Team, responsible for the deployment and planning of the Bank’s network infrastructure in the UK, Middle-East, Africa and India.

The team is responsible for the delivery and deployment of network/security projects and requests to enhance the client’s infrastructure to meet current and future business demands:-

Required skills

Good level of Cisco Routing & Switching

Strong CCNA or CCNP certification or equivalent experience

Experience with Fortinet Firewalls

Firewall Migration experience, FortiAnalyzer, FortiConverter, FortiManager.

Ability to handle numerous separate projects concurrently

A very organised individual.

Ability to work under pressure and to tight deadlines whilst maintaining attention to detail.

Analyse, review and understand network topologies.

Coordinate multiple projects, change management and governance efficiently working both independently and as a member of a team.

Good understanding of networking principles,

Good documentation skills using MS Office suite and Visio

Good customer facing skills with the ability to keep the customer informed at all times and understand their requirements

This role is suitable for a Security Engineer who has at least 3 years as a Senior Project Engineer in a professional environment.

Desired skills (not essential)

Experience with Cisco ACI

Fortinet NSE4 Certification or above

Experience with EVPN

Checkpoint certification or equivalent experience

Fortinet certification or equivalent experience

Load Balancing Experience (F5)

The role may have, but is not limited to the following functions:

Plan, manage and deploy technology changes to support DC services

Deploy LAN infrastructure to support end user services requirements

Includes patching schedules for facilities to cable network equipment

Diagrams for Network Operations

Inventory management

Create implementation plans for RFC’s to a high level of detail.

Correctly document pre and post checks for change verification purposes

Understand and document back out plans, clearly identifying back out points.

Identify points of no return

Support the stability and uptime of essential services by planning changes with a documented best approach mind set.

Identify where changes can be complete with zero downtime to hosted services.

Plan and implement changes with a cost effective resource strategy.

Identify, understand and document change risks and mitigation tactics.

Identify, understand and document impact of planned technology changes, including documentation expected output from verification.

Document network estate for Operation Support and to support change planning

Maintain infrastructure database

Complete network diagrams to a high standard.

Peer review and validation of technical deployment plans

Provide constructive feedback to peers to support change control requirement and maintain high standards of detail and quality offered by CACI.

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