Senior Network Engineer
Sword is a leading provider of business technology solutions within the Energy, Public and Finance sectors. We use proven technology and domain expertise to build solid technical foundations across platforms, data, and business applications. Our passion is solving business problems through technology and partnering with clients to achieve their goals.
About the Role
We’re looking for a Senior Network Engineer to join our Managed Services team. You will design, deploy, and troubleshoot network and security solutions, support critical infrastructure, and act as a senior escalation point.
Responsibilities
* 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.
What We're Looking For
* Proven experience in senior-level network engineering roles.
* 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.
Requirements
* 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 / 1000ASR).
* 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.
* Palo Alto Firewalls.
Beneficial Experience (Not Essential)
* Cisco Meraki Technologies, including Wireless, Switching, Security (MX), and SD-WAN.
* Cisco SD-WAN, including vManage, vSmart, and vEdge components.
* Cisco Identity Services Engine (ISE).
* Cisco Catalyst Center.
Benefits
At Sword we invest in training and career development and build inclusive teams. We offer a competitive salary, personalised career development, flexible working arrangements, generous annual leave, enhanced family‑friendly benefits, pension scheme, private health and well‑being schemes, an employee assistance programme, discounted cash plan, and more.
We are proud to be an equal‑opportunity employer, ensuring fair and equal consideration for all applicants. We embrace diversity in all its forms and value individuals regardless of age, disability, gender identity or re‑assignment, marital or civil partner status, pregnancy or maternity status, race, colour, nationality, ethnic or national origin, religion or belief, sex, or sexual orientation. Your perspective and potential are important to us.
If we can help make the hiring process more accessible, please let our talent acquisition team know so we can support any adjustments.
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