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

ZipRecruiter; London; On-site; GBP 50,000 - 90,000; Full time

Job summary

An established industry player is seeking a Senior Network Security Engineer to enhance and manage its network infrastructure across the UK and beyond. This role involves deploying network and security projects, ensuring service stability, and coordinating multiple projects effectively. The ideal candidate will have a strong background in Cisco technologies and Fortinet firewalls, alongside excellent documentation and customer-facing skills. Join a dynamic team where your expertise will directly impact the organization's ability to meet current and future business demands, all while working in a fast-paced and supportive environment.

Qualifications

• Strong experience in Cisco Routing & Switching with relevant certifications.
• Ability to handle multiple projects and work under pressure.

Responsibilities

• Deploy and manage network infrastructure across multiple regions.
• Document and verify changes to maintain service stability.

Skills

Cisco Routing & Switching

CCNA or CCNP certification

Fortinet Firewalls

Firewall Migration

Project Management

Networking Principles

Documentation Skills

Customer-facing Skills

Education

3+ years in a Senior Project Engineer role

Tools

MS Office Suite

Visio

Job description

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 with 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)

Additional functions

• Plan, manage, and deploy technology changes to support DC services
• Deploy LAN infrastructure to support end-user service requirements
• Include patching schedules for facilities to cable network equipment
• Prepare diagrams for Network Operations
• Inventory management

Create implementation plans for RFCs 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 mindset.

• Identify where changes can be completed 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 of verification outputs

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 requirements and maintain high standards of detail and quality as offered by CACI