Job Description

Job Title: Senior Telecoms Network Design ArchitectLocation:

Hybrid working London or Reading |

Type:

Contract (6 months initially) |

Rate

: £600 per day OutsideRole Overview:We are seeking a highly experienced

Telecoms

Network Infrastructure Architect

with deep expertise in,

Telecoms infrastructure, data centre networking

, and

cloud- technologies

. The successful candidate will design, implement, and support complex, scalable, and secure telecoms infrastructure solutions across data centre and cloud environments, with a strong focus on automation, virtualisation, and software-defined networking.Key Responsibilities:Design and implement

data centre fabric architectures

(Clos, VXLAN, EVPN, multi-domain routing, DCI, anycast, micro-segmentation).Develop and support

SDN solutions

including distributed switching, routing, and security policy enforcement.Architect network solutions for

VNF and CNF applications

, considering performance, scalability, and resilience.Support container-based environments with

Kubernetes

, including CNI plugins, ingress/egress, and network policies.Design and maintain services in

virtualised and cloud- platforms

(OpenStack, OpenShift, WindRiver).Drive infrastructure automation using

Ansible, Terraform, Python

, and

Infrastructure-as-Code

practices.Ensure end-to-end

service provider core and data centre network design

, including expert-level

BGP

, inter-AS, and policy/routing configurations.Apply

Linux expertise

across PaaS, IaaS, SaaS, and CaaS environments.Work with supporting services such as

DNS, ADC, AAA, firewalls, SIEM, protocol inspection

, and network visibility tools.Align architecture with

3GPP mobile standards (Rel. 15+), IMS, RAN

, and

CUPS/WWC

models.Contribute to security and compliance requirements, including alignment with the

Telecom Security Act

.Liaise with vendors and standards bodies; contribute to white papers and industry groups (desirable).#Required Skills and Experience:Proven experience designing and managing

data centre and telecom networks

at scale.Network and security requirements and approaches for:3GPP mobile architectures, particularly 3GPP Release 15 and onwards.IMSRAN architectures (eg C-RAN functional split models)Expert-level knowledge of

routing protocols (BGP)

, network resilience, and

service provider architectures

.Strong experience in

Kubernetes

,

Linux networking

, and container networking interfaces (CNIs).Hands-on skills in

SDN overlays (VXLAN/Geneve)

, network virtualisation, and service chaining.Familiarity with

eBPF

,

telemetry

,

firewalling

, and protocol-aware services (eg, ALGs).Strong Scripting and automation skills:

Python, Terraform, Ansible

.Desirable but not essentialExperience with

Cisco/Arista platforms

,

CloudVision

,

NDFC

,

NDO

(desirable).Familiarity with

intent-based networking

concepts (desirable).Experience in

RedHat

OpenStack/OpenShift

and

WindRiver

environments (desirable).Certifications ():CCIE, JNCIE, or equivalent

expert-level routing certifications.SDN certifications

(eg, ONF).Security certifications

(eg, CISSP, ISC2).Relevant

telecom/vendor-specific certifications

.Ideal Candidate Profile:You are a strategic thinker with hands-on technical depth across networking, cloud, and telecom domains. You have extensive experience in designing secure, resilient infrastructure, and thrive in high-complexity environments where automation, performance, and innovation are critical.#J-18808-Ljbffr