Technical Architect+DV cleared contract+On site in London+6 months ++Outside IT35+£650 - £700 a daySkills:+DV clearance+CCNP+Vmware+HLD / LLDWe are seeking a highly experienced

Technical Architect

to join a secure, high-profile programme. The role requires someone with deep expertise across data centre networking, private cloud, security, and automation - with the ability to lead architecture, design, and governance at the highest level.Key Responsibilities

Architecture and Design

- Develop HLDs, LLDs, and build guides for end-to-end infrastructure solutions. Ensure alignment with security frameworks (Secure By Design, NCSC CAF, NIST 800-53).

Networking and Security

- Architect secure, multi-tenant data centre networks (Clos-fabric, advanced BGP, DCI). Implement strong security using Palo Alto firewalls, VMware NSX-T micro-segmentation, and cross-domain solutions.

Compute and Virtualisation

- Design/manage VMware VCF private cloud platforms, VxRail/vSAN hyper-converged compute, and software-defined networking.

Platform and Application Services

- Deliver containerisation, secrets management, and enterprise messaging systems (Docker, RabbitMQ).

Governance and Leadership

- Present to the Technical Design Authority, act as SME for infrastructure stack, and enforce CIS/STIG compliance.

Automation

- Drive Infrastructure as Code (IaC) adoption and automated infrastructure deployment.

Core Technical Expertise

Data Centre Networking

- Clos-fabric, VRFs, EBGP, ECMP, active/active DCI.

Network Security

- Palo Alto firewalls, high-grade crypto.

Private Cloud and HCI

- VMware VCF, VxRail/vSAN, Veeam.

Software-Defined Networking (SDN)

- VMware NSX-T (Geneve overlays, Edge Node config, DFW, NSX Federation).

Security Architecture

- Multi-tier secure environments (DMZs, CDS, Diodes/HAGs, AV - Trellix preferred).

Operating Systems

- Senior Linux (Ubuntu) and Windows (Server 2025, SQL 2022, AD, PKI, MECM).

Application Platforms

- Docker, CI/CD pipelines, secrets management, object storage (S3).

EUC

- Omnissa Horizon, UAGs, Zero/Thin client environments.

Desirable Skills

EVPN/VXLAN, Fortigate, Panorama, VMware SSP (vDefend).

IaC (Terraform, Ansible), CI/CD (GitLab), Python orchestration.

Observability (Prometheus, Grafana), SIEM (Splunk, Aria Logs).

Advanced VMware: SRM, Avi Load Balancer, Workspace ONE.

Application/data platforms: Kubernetes, Vault, Redis, RabbitMQ, Elastic Stack.

Dell Powerscale and NVIDIA GPU passthrough experience.

Professional Skills and Qualifications

Proven ability to lead design workshops and governance board presentations.

Strong documentation skills (HLDs, LLDs, Build Guides).

Knowledge of CIS, STIG, and NIST 800-53 frameworks.

Certifications such as

CISSP, CCNP

(or equivalent experience) desirable.

If you''d like to discuss this Technical Architect role in more detail, please send your updated CV to chloe.manerowski@cbsbutler.com and I will get in touch.

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