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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Network Architect - **Company:** TNS - **Location:** Sheffield, UK - **Experience:** Expert - **Salary:** £140,000.0 - £180,000.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Amazon Web Services, Apple IOS, Microsoft Azure, Border Gateway Protocol, VoIP, Code Division Multiple Access, Software Debugging, Network Address Translation, DevOps, Dynamic Multipoint Virtual Private Networks, Enhanced Interior Gateway Routing Protocol, General Packet Radio Service, Hot Standby Router Protocol, Integrated Services Digital Networks, Internet Protocol Security (IP SEC), IP Multicasting, Multi-protocol Systems, JSON, Junos, Python (Programming Language), MPLS VPN, Network Architecture, Network Planning and Design, Routing, Cisco Nexus Switches, Open Shortest Path First (OSPF), OpenStack, Public Key Infrastructure, Red Hat Enterprise Linux, Ansible, TCP/IP, Virtual Router Redundancy Protocols, Wide Area Networks, Workflow Management Systems, Load Balancing, Computer Network Operations, Cloud Platform System, Juniper, Git, Cloudformation, Network Support, Fortinet, TACACS+ Protocol, Firewall Services Module, Terraform, Open Network Automation Platform, NetScreen, Cisco, Jenkins, Citrix Netscaler - **Published:** September 5, 2026 - **Apply:** https://tnsi.wd1.myworkdayjobs.com/Search/job/GBR---Sheffield/Senior-Network-Architect_R2711 ## About the Role Essential Skills: The following technical expertise is sought, transferable skills in other areas of network and infrastructure design and support will also be strongly considered: * Experience with architecture and provisioning of solutions within MPLS or SD-WAN based environments * Extensive hands-on experience with the design and configuration of Fortinet FortiGate devices, particularly within SD-WAN topologies * Experience with network automation and orchestration tools and features and DevOps methodology (e.g. Terraform, Ansible, JSON, Nautobot, Vendor-specific tools like Arista Cloudvision, Cisco DNA Center) * Proficient in IPSec (including DMVPN and RRI) design, configuration, operation, and troubleshooting * Experience in designing cloud-based architectures in AWS/Azure/GCP * Proficient in IP Multicast design, configuration, operation, and troubleshooting * Experience in network design and implementation based on high-level customer requirements * Extensive TCP/IP and routing knowledge (BGP, OSPF, ISIS, EIGRP, PIM, BFD). * Experience with Customer Edge features such as Network Address Translation, VRRP/HSRP * Proven ability to create and maintain comprehensive documentation for all implemented solutions * Expert-level troubleshooting and debugging skills * Experience in vendor product evaluation (hardware, software, service provider) * Experience and technical understanding of broadband service deployments (xDSL, Cable). * Ability to design, plan, and coordinate network maintenance and installation windows. * Hardworking, focused, thorough, and punctual * Ability to provide written and verbal presentations on technical topics to corporate peers and management * Experience providing support for Tier1 and Tier2 environments * Self-motivated; able to work independently or within a team environment with minimum instruction from management * Able to work flexible hours as required and provide on-call support Desirable Skills: * Fortinet, Cisco and/or Juniper certifications (NSE Level 4/5/6/7, CCIE/CCNP-SP, JNCIE, JNCIP) * Experience with AAA, Tacacs+, Radius, and CA/PKI * Experience with Voice over IP, Dial Services (Async/PPP, ISDN), Wireless services (CDMA, EVDO, GPRS, EDGE, 802.11b/g/n), Server Load-Balancing (F5) * Data Center design and support (Cisco Nexus, Arista, Juniper) * Experience with Server Load-Balancing (F5, Netscaler, AWS ALB/SLB) * Experience of GIT, Jenkins, and other DevOps tools and Agile working practices * Creating and deploying CloudFormation templates. * Automating using other scripting/automation languages such as Python, Ansible and vendor-specific tools like Arista Cloudvision, Cisco DNA Center is beneficial * Firewall configuration experience with PIX/ASA, IOS, or Netscreen/JunOS * Designing, building and automating AWS/GCP/Azure architecture * Designing, building and automating NSX-V and/or NSX-T networking * Designing, building and automating Openstack (Canonical or RedHat) * UNIX/Linux Experience ## Description As a senior member of the Network Architecture team, you are responsible for the design, documentation and deployment of services within a global Managed Service Provider IP/MPLS network. Primary focus is on designing solutions such as large-scale SD-WAN, IPSec and MPLS VPN, IP multicast solutions and across wired and wireless comms. The role comes at an exciting time for TNS as we integrate services into private- and public-cloud environments, with a focus on automation and orchestration of services and look to transform to a NetDevOps model, where this role will play a key part. The position requires technical expertise across multiple areas and functions - ability to work with pre-sales and internal teams on requirements gathering, creation of high-level and detailed design specs, ability to work alongside development teams to automate configuration, delivery and support processes, and ownership of overall projects. Selected candidate will also work with strategic vendors for solution evaluation and customization and will provide third-level Operations support for incident resolution, and leadership over critical operational maintenance works., * Design and test new technologies, features, and solutions and documenting the results so that they can be repeated by members of the Implementations team and supported by the Network Operations Center * Work closely with Pre-Sales Engineers and Product Marketing to understand customer requirements and develop scalable, consistent and supportable technical solutions * Work with existing and new vendors to evaluate platforms and solutions for integration in TNS' product suite. * Provide third-level support to TNS' Network Operations Center staff, and Implementations teams * Develop and document detailed lab test plans and reports, document procedures and new configurations, provide training for operations departments and other engineers, provide written troubleshooting, debugging, and problem detail to vendors. * Interact with vendors to resolve problems and bugs, and perform hands-on testing, configuration, and troubleshooting ## Related Videos - [Getting under the skin: The Social Engineering techniques](https://www.wearedevelopers.com/videos/38-getting-under-the-skin-the-social-engineering-techniques) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Introducing JSON Structure](https://www.wearedevelopers.com/videos/100219-introducing-json-structure) - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) ## Related Articles - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know)