Senior Network Engineer

at  Aspen Insurance Holdings

Date: Jul 30, 2024
Location: London, GB, EC3M 3BD
Company: Aspen Insurance
Since Aspen was founded in 2002, we have become a leading, diversified specialty insurance and reinsurance company. We respond thoughtfully and creatively to find the best outcomes for our clients and business partners through carefully-tailored solutions.
We believe the way we work is just as important as the work we do, and we are guided by our core values of respect, honesty, trust and professionalism.
Aspen is a great place to develop your career offering an exciting and challenging environment where achievement is rewarded.

POSITION OVERVIEW:

As a Senior Network Engineer, you will collaborate closely with our network delivery and support partners to maximize uptime, ensure the integrity, and optimize the performance of our network infrastructure.

SKILLS AND EXPERIENCE:

• Extensive knowledge in networking concepts and technologies.
• Proven experience in designing, implementing, and managing diverse network infrastructures.
• Expertise with Cisco, Riverbed, Meraki, and Zscaler products.
• Strong skills in managing load balancers and firewalls.
• Experience in high-paced environments is highly preferred.
• Technologies we would really like you to have:
• Cisco Nexus / ACI
• F5 Big-IP Loadbalancers (LTM and GTM)
• FortiNet Firewalls
• Cisco Viptella
• Zscaler (ZIA / ZPA)
• Meraki
• Azure Cloud Load Balancer
• Azure Virtual Network Gateway
• External DNS

ABOUT THE ROLE:

Join a dedicated Network and Security team responsible for maintaining the design and architecture of various network services.
Leand and support the delivery of critical projects, ensuring seamless operations across multiple regions.
This role requires a commitment to flexibility and occasional out-of-hours work to sustain the critical network environment.

KEY RESPONSIBILITIES:

• Collaborate with network delivery and support teams to maintain peak network performance and reliability.
• Design, implement, and manage network infrastructure, including Cisco, Riverbed, Meraki, and Zscaler technologies.
• Oversee network components such as load balancers and firewalls.
• Work flexibly, including out-of-hours as necessary, to support a critical environment.
• Participate in the design and architecture of network, voice, firewall, load balancer, and data centre services.
• Contribute to and lead critical projects across the EMEA, APAC and US networks.
• Architect network solutions in alignment with global standards.
• Configure and install network hardware, including Fortinet and FortiGate firewalls, routers, switches, and other devices.
• Implement and manage network security measures to protect data, software, and hardware using Fortinet and FortiGate solutions.
• Develop network technical strategy and maintain technical standards.
• Manage the product lifecycle and create infrastructure refreshment plans.
• Provide escalation support for critical operational services and project delivery.
• Build strong relationships with business units in the UK/EMEA/US, business IT, and third-party vendors to ensure high-quality network service delivery.
• Collaborate closely with the managed service provider team and key vendors to ensure global standards are maintained and priorities are aligned.
• Foster effective collaboration across teams and departments to advance initiatives with IT partners and users, offering technical support and guidance to end-users and IT team members.
• Proficiency with network monitoring and analysis tools (e.g., FortiAnalyzer, FortiManager).
• Extensive experience with network security and firewall technologies, especially Fortinet and FortiGate.
• Ability to work with third-party vendors to manage service delivery methods, resources, timing, and solutions.
• Proven ability to develop and maintain productive relationships with key stakeholders, project sponsors, and vendors, working effectively with all levels of staff and management both internally and externally.
• Strong communication and interpersonal skills to build relationships and ensure effective collaboration.
• Ensure network documentation, including diagrams, configurations, and policies, is accurate and up to date.
• Identify and implement improvements to enhance network performance, security, and reliability.
• Relevant certifications such as Fortinet Network Security Expert (NSE), Cisco Certified Network Professional (CCNP) are desirable.