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

JR United Kingdom; London; On-site; GBP 50,000 - 90,000; Full time

Job summary

An established industry player is seeking a Senior Network Security Engineer to join their London Deployment Team. This role involves deploying and planning network infrastructure across the UK, Middle-East, Africa, and India. You will be responsible for managing multiple projects, enhancing client infrastructure, and ensuring stability and uptime of essential services. The ideal candidate will possess strong skills in Cisco Routing & Switching, Fortinet Firewalls, and project management, with a focus on delivering high-quality results under pressure. Join this forward-thinking team and contribute to impactful network security initiatives.

Qualifications

• 3+ years as a Senior Project Engineer in a professional environment.
• Strong understanding of network topologies and principles.

Responsibilities

• Deploy and manage network infrastructure for various regions.
• Document network changes and ensure service stability.

Skills

Cisco Routing & Switching

CCNA or CCNP certification

Fortinet Firewalls

Firewall Migration

Project Management

Networking Principles

Documentation Skills

Customer Facing Skills

Education

Bachelor's Degree in Computer Science or related field

Tools

MS Office Suite

Visio

Job description

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

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Client:

CACI Ltd

Location:

london, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

3

Posted:

05.05.2025

Expiry Date:

19.06.2025

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Job 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

• 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.