Project Manager – Network Infrastructure

Title: Project Manager – Network Infrastructure

Network Infrastructure & Firewall Engineer

• Location: Sheffield, UK
• Work Model: Hybrid
• Experience: Experienced professional
• Industry: Banking / Financial Services
• Inside IR35 Contract
• Duration: 6-12 Months Extendable

Role Overview

We are seeking an experienced Network Infrastructure & Firewall Engineer with a strong technical background in enterprise networking, firewall technologies and network security. The ideal candidate should have experience supporting complex IT infrastructure within a banking or financial services environment.

Candidates with a BFSA background and previous experience in a major banking environment are preferred. Strong knowledge of Cisco technologies, excellent communication skills and the ability to collaborate with technical and business stakeholders are essential.

Key Responsibilities

• Support, maintain and troubleshoot enterprise network infrastructure, ensuring high availability, reliability and performance.
• Configure, monitor and troubleshoot network devices, including routers, switches and firewalls.
• Support firewall administration, rule management, access control policies and network security configurations.
• Diagnose and resolve network connectivity issues, routing problems and infrastructure-related incidents.
• Work with Cisco networking technologies to support enterprise network operations.
• Monitor network performance, identify potential issues and implement appropriate corrective actions.
• Participate in incident, problem and change management activities in line with established IT service management processes.
• Perform root cause analysis for recurring network and firewall incidents and recommend preventive measures.
• Collaborate with infrastructure, cybersecurity, application support and service management teams to resolve technical issues.
• Maintain technical documentation, network configurations, incident records and operational procedures.
• Ensure compliance with organisational security policies, operational standards and change management procedures.
• Communicate technical issues, resolutions and potential risks clearly to technical teams and business stakeholders.

Required Skills and Experience

• Strong technical background in network infrastructure and enterprise networking.
• Hands-on knowledge of firewall technologies, configuration, administration and troubleshooting.
• Experience with Cisco technologies, including routing, switching and network connectivity.
• Understanding of TCP/IP, DNS, DHCP, VLANs, routing protocols and network troubleshooting.
• Knowledge of network security principles, access control lists and firewall policies.
• Experience supporting business-critical IT infrastructure in an enterprise environment.
• Strong analytical and problem-solving skills.
• Excellent verbal and written communication skills.
• Ability to work independently and collaborate effectively with cross-functional teams.
• Willingness to work in a hybrid setup in Sheffield, UK.

Preferred Qualifications

• Previous experience in banking or financial services.
• BFSA-related experience or exposure to relevant banking infrastructure and security environments.
• Experience working in large enterprise IT environments with established operational and security procedures.
• Cisco certifications such as CCNA or CCNP would be advantageous.
• Familiarity with ITIL-based incident, problem and change management processes.