Senior Network Engineer

Senior Network Engineer

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Sword is a leading provider of business technology solutions within the Energy, Public and Finance sectors, driving transformational change for our clients. We use proven technology, specialist teams, and domain expertise to build solid technical foundations across platforms, data, and applications. We have a passion for using technology to solve business problems and work in partnership with clients to help them achieve their goals.

We're looking for a Senior Network Engineer with deep technical expertise and a passion for solving complex problems. You'll play a pivotal role in our Managed Services team, supporting critical infrastructure and leading the design, deployment, and troubleshooting of network and security solutions. This is a hands‑on role for someone who thrives in dynamic environments, brings a methodical approach to problem‑solving, and is confident working across a wide range of technologies.

• Provide expert‑level support to clients and act as a senior escalation point for technical incidents
• Diagnose and resolve complex network and security‑related issues
• Manage change control and risk assessments across managed service environments
• Implement infrastructure changes and upgrades with precision and minimal disruption
• Support project engineering activities and contribute to solution design
• Maintain and improve technical documentation, policies, and procedures
• Manage vendor escalations and technical case handling
• Assist the Technical Services Manager with major incident reports, service reviews, and root cause analysis
• Perform regular maintenance and patching of network and security systems
• Identify and recommend service improvements and automation opportunities
• Mentor junior engineers and share technical knowledge
• Participate in the on‑call rota to ensure 24/7 support coverage

• Strong understanding of network security, firewalls, VPNs, and monitoring tools
• Logical and methodical approach to troubleshooting and implementation
• Excellent communication and documentation skills
• Ability to lead by example and mentor others
• Passion for continuous improvement and delivering high‑quality service

Key Skills & Experience

• Extensive experience in a similar role, or in a field‑based / consulting capacity
• CCNP Certification is desirable
• A valid driving licence is essential, as travel may be required
• Strong experience troubleshooting complex enterprise networks and associated technologies
• Solid understanding of Wide Area Networking technologies and routing protocols such as EIGRP, OSPF, and BGP
• Proficiency with tools like Wireshark and other network troubleshooting utilities

Essential Technical Expertise

• Cisco ISR and ASR Routers (2900 / 4000 / 1000
  
  ASR)
• Cisco ASA Firewalls and Cisco FirePOWER / Threat Defence
• Cisco Nexus Switching (9K) and Catalyst (3850 / 3650 / 2960X / 4500X) and associated technologies including VTP, STP, and VSS

Beneficial Experience (Not Essential)

• Cisco Meraki Technologies, including Wireless, Switching, Security (MX), and SD‑WAN
• Cisco SD‑WAN, including vManage, vSmart, and vEdge components, with experience in deployment, administration, and troubleshooting
• Cisco Identity Services Engine (ISE)

We offer a comprehensive benefits package designed to support your professional development and enhance your overall quality of life. In addition to a competitive salary, you can expect:

• Personalised career development – a customised development plan with learning opportunities
• Flexible working arrangements to support work‑life balance
• Generous annual leave allowance, enhanced family‑friendly benefits, pension scheme, access to private health benefits, well‑being and insurance schemes, employee assistance programme, discounted cash plan, and more

Mid‑Senior level

Information Technology

IT Services and IT Consulting

At Sword we are dedicated to fostering a diverse and inclusive workplace and are proud to be an equal opportunities employer, ensuring that all applicants receive fair…