Network Engineer

Network Engineer - Contract

Location: Sheffield, hybrid working
Contract Type: Temporary, 37 hours per week, Monday - Friday
Daily Rate: £500.00 per day, inside IR35 paid to Umbrella
End Date: End of 31st March 2027 initially
Driving Required: Full Clean UK license

Please note, SC clearance will be required for this position.

Our client, a prominent organisation within the Public Services sector, is seeking an experienced Network Engineer to join their team on a temporary basis. The successful candidate will play a crucial role in both BAU operations and project work, contributing to the enhancement and support of the organisation's network infrastructure.

Key Responsibilities:

• Manage and configure Cisco ASA firewalls, including the replacement of existing Cisco ASA 5525-X units and the conversion of ASA rulesets into Cisco Firepower Management Centre (FMC) configurations.


• Provide expertise in Wi-Fi infrastructure, assisting third-party teams and contributing to the internal design and implementation of Wi-Fi projects.


• Demonstrate strong routing knowledge, particularly in relation to the Atlas Court Core, ensuring robust network performance.


• Oversee the replacement of end-of-life and out-of-support network access switches across multiple sites, requiring rudimentary network knowledge and coordination for hardware purchasing and support contracts.


• Serve as a resource to assist the wider team in delivering various projects, particularly in relation to Cisco ISE and the uplift of network infrastructure.

Essential Skills and Experience:

• Proven experience as a Cisco Network Engineer with a strong background in routing, switching, and firewall management.


• Hands-on experience with Cisco ASA, Firepower Threat Defence (FTD), and Firepower Management Centre (FMC), including the migration or conversion of ASA firewall rulesets.


• In-depth knowledge of network hardware, specifically Cisco products, including firewalls, routers, switches, and wireless infrastructure.


• Familiarity with TCP/IP, client and WAN VPN, SD-WAN, LAN and VLANs, QoS, multicast, and VoIP.


• Relevant qualifications such as CCNA or demonstrable equivalent experience.


• Capability in providing third-line support and fault-finding within a complex enterprise environment.

Preferred Skills:

• Experience in supporting network design and implementation within a large-scale enterprise setting.


• A proactive approach to problem-solving and the ability to work collaboratively within a team-oriented environment.

Adecco is a disability-confident employer. It is important to us that we run an inclusive and accessible recruitment process to support candidates of all backgrounds and all abilities to apply. Adecco is committed to building a supportive environment for you to explore the next steps in your career. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you.