Senior Network Hosting Architect - freelance - hybrid, London, UK

Company: Comgent

Location: London

Posted: April 21st, 2026

Senior Network Hosting Architect - freelance - hybrid, London, UK

Contract | Comgent | United Kingdom

Posted On 04/18/2026

Job Information

Standard Business working Hours Yes

Work Experience 8-10

City London

State/Province City of London

N/A

Special Considerations

We are committed to building an inclusive workplace and encourage applications from women and other under-represented groups in tech. All qualified candidates are welcome.

Start date: May/ June 2026

Location: London, UK (Hybrid — minimum 2 days per week in office)

Job Description

Reports to Head of Data Centre and Network Services.

A highly skilled Senior Network Hosting Architect with extensive experience designing, delivering, and optimising large-scale enterprise, internet-facing, cloud, and market-data-driven hosting environments.

This role is accountable for shaping end-to-end hosting network architectures supporting internal enterprise workloads, external internet services, regulated payment platforms, and real‑time market data distribution, ensuring resilience, security, scalability, and operational excellence in performance‑critical and regulated environments.

The ideal candidate is proactive, able to be detail‑orientated when required, and comfortable operating in regulated environments.

Requirements

Hosting Network Architecture & Strategy

Lead the architecture of secure, scalable, and resilient network hosting platforms across:

Define hosting strategies supporting market data platforms, payment systems, enterprise applications, and customer‑facing internet services.

Develop multi‑year network hosting roadmaps aligned to business growth, regulatory expectations, and technology evolution.

Technical Governance & Engineering Leadership

Act as the senior technical authority for complex hosting, connectivity, and L2–L7 network challenges across enterprise, internet, and SaaS‑integrated environments.

Own architectural governance for market data, payment platform, and cloud hosting designs, ensuring compliance with internal standards and external regulation.

Provide design assurance for secure inbound/outbound internet connectivity, DDoS‑protected architectures, and Zero Trust access models.

Cloud, SaaS & Internet Connectivity

Architect and operate cloud networking across:

Design resilient connectivity models for Microsoft 365 and key infrastructure SaaS services, including identity‑aware routing, secure egress, and performance optimisation.

Define internet hosting patterns covering DMZs, ingress/egress, load balancing, DNS, CDN integration, and secure access.

Market Data & Low‑Latency Platforms

Architect, optimise, and support market data hosting environments including:

Design deterministic, high‑availability network paths for latency‑sensitive trading and analytics workloads.

Partner with vendors and internal platform teams to ensure performance, resilience, and change control for market data services.

Payment Systems & Regulated Hosting

Design hosting network architectures for payment systems and transactional platforms, ensuring:

Support connectivity to payment gateways, clearing systems, and third‑party providers, including resilience testing and failure scenarios.

Project & Transformation Delivery

Lead major hosting and network transformation initiatives, including:

Drive structured planning, risk management, stakeholder coordination, and controlled delivery.

Operations Excellence & Automation

Champion continuous optimisation across performance, capacity, routing efficiency, internet ingress/egress, and cloud cost efficiency.

Lead resolution of high‑severity incidents across enterprise, market data, payment, and internet‑facing platforms.

Implement automation, observability, and tooling using Infrastructure‑as‑Code and API‑driven platforms.

Act as the technical interface with:

Review and influence technical solutions, SLAs, contracts, and support models.

Provide clear architectural updates and risk assessments to senior stakeholders.

Security, Resilience & Compliance

Embed Zero Trust, segmentation, encryption, and secure connectivity across hosting platforms.

Ensure internet‑facing, cloud, market data, and payment environments meet regulatory, audit, and operational resilience standards.

Maintain high‑quality architecture artefacts, runbooks, and audit evidence.

Qualifications, Skills, and Experience

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