Principal Network Engineer

JR United Kingdom; London; On-site; GBP 125,000 - 150,000; Full time

Job summary

A leading financial institution in London is seeking a Principal Network Engineer responsible for the support and reliability of network services. The ideal candidate will have extensive experience in Cisco WAN technologies and a strong background in networking protocols, making significant contributions to system design and support. This role offers the opportunity to work in a dynamic environment with a view to going permanent after an initial contract period.

Benefits

Inside IR35 position

Potential to go permanent after 6-12 months

Qualifications

• Proven experience in network products and services focusing on Cisco WAN technologies.
• Substantial experience (5+ years) as a WAN Network Engineer.
• Excellent spoken and written English skills.

Responsibilities

• Provide escalation support for network services ensuring operational stability.
• Design, build, and maintain systems and applications for network performance.
• Collaborate with networks operations and service teams for technical support.

Skills

Cisco WAN technologies

MPLS

BGP

OSPF

Network automation

Troubleshooting

Education

Bachelor's degree in technology-related field

Tools

JIRA

Job description

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A leading financial institution seeks a Principal Network Engineer

Position Summary

As a highly skilled principal network engineer, you will be responsible for the ongoing support and reliability of all components within the company's ecosystem, encompassing platforms, networks, applications, and services. In this role, you will provide escalation support for important network services, ensuring the operational stability and performance of the company's global network. You will also find opportunities and improvements, then define requirements for software automation to enhance the features, functions and reliability of the network, underpinning company's digital platforms.

Role Responsibilities

We will play a pivotal role in designing, building, and maintaining systems, software, and applications across various domains, ensuring the highest quality outcomes. We will independently make technical design and amendment decisions, effectively leading the workload.

By analysing data and understanding business requirements, we will translate them into technical specifications, ensuring alignment with infrastructure and network capacity needs. We will develop dashboards to provide near Real Time network status.

Collaborating closely with network operations and service teams, we will provide in-depth technical support and guidance for all multicast- and WAN-related issues and implementations. This role requires a proactive problem solver with a deep understanding of multicast protocols, WAN infrastructure, and a passion for delivering exceptional service.

When necessary, we will lead upgrades, coordinating efforts with internal teams and third parties. Building accurate documentation and monitoring system performance are essential to support business activities and continuous improvement.

We will support the deployment of engineering patterns and contribute to creating solutions by coordinating design requirements to be automated, tested and released.

Requirements

• Proven experience in network products and services, with specific focus on Cisco WAN technologies, including ASR and Nexus9K.
• Expertise in LAN, WAN, MPLS, VPLS, LDP, GRE, BGP, OSPF, and ISIS within a VRF context for L2/L3VPN services, Traffic Engineering, and RSVP.
• Comprehensive knowledge of multicast concepts, including PIM-SM, PIM-SSM, IGMP, MVPN, and MLDP.
• Proficiency in product-aligned, service-focused work, with a solid grasp of network automation, SRE, and DevOps or equivalent experience.
• Working with Agile methodologies (Scrum, Kanban) and project management tools like JIRA.
• Excellent skills in network packet analysis and packet capture tools for troubleshooting.
• Familiarity with load balancing technologies, TCP/IP, and multicast in Internet environments.
• Understanding of low-latency technologies commonly used in the financial sector.
• Experience in Data Centre Networking, including Software-Defined Networking (SDN), Cisco ACI, VxLAN, and related technologies.
• Proficiency in Service Management processes, preferably with ITIL knowledge.
• Excellent spoken and written English skills, enabling meaningful collaboration.

Preferred Skills and Experience

• A bachelor's degree or equivalent experience in a technology-related field is essential.
• CCIE certification, is highly desirable (including actively pursuing accreditations).
• Significant experience in technology-focused positions is crucial.
• Extensive knowledge of routing and switching protocols.
• Substantial experience (5+ Years) as a WAN Network Engineer.
• Exposure to Network Service Providers or the Financial Services Sector is high desirable

Other Information

• You will be expected to attend site at least once a week.
• This is an inside IR35 position
• The position is 6-12 months with a view to going permanent
• In terms of daily rate/annual salary, we are awaiting further details