Platform Architect

Arcus Search; Greater London; Hybrid; GBP 90,000 - 150,000; Full time

Job summary

Arcus Search is seeking a Senior Platform Architect in the United Kingdom to shape technology decisions across infrastructure, security, enterprise platforms, networking, and corporate technology.

You will provide clear architectural direction across a broad landscape and operate across data centre infrastructure, security architecture and enterprise platforms, balancing technical credibility with hands-on involvement.

Qualifications

• Significant experience as a Platform/Infrastructure/Enterprise/Principal Architect.
• Strong understanding of infrastructure, networking and security fundamentals.
• Experience operating in complex engineering environments, not purely governance.
• Ability to operate across multiple domains with deep expertise in at least one.
• Strong judgement and ability to make architectural decisions independently.

Responsibilities

• Shape technology decisions across infrastructure, security, enterprise platforms, networking and corporate tech.
• Provide clear architectural direction across a diverse technology landscape.
• Work across data centre infrastructure, security architecture and enterprise platforms.

Skills

Platform Architect

Infrastructure

Networking

Security

Architectural decisions

Multi-domain

Job description

A research focused technology organisation operating large scale on premise and hybrid infrastructure is looking for a senior Platform Architect to help shape technology decisions across infrastructure, security, enterprise platforms, networking and corporate technology.The team operates across a broad technology landscape, supporting everything from data centre infrastructure and security architecture through to enterprise platforms, end user technology and emerging AI initiatives.We're looking for someone with broad technical experience, strong judgement, and the ability to provide clear architectural direction across a diverse technology landscape.

What you’ll need:

• Significant experience as a Platform Architect, Infrastructure Architect, Enterprise Architect or Principal Architect
• Strong understanding of infrastructure, networking and security fundamentals
• Experience operating in complex engineering environments rather than purely governance focused architecture functions
• Ability to operate across multiple technical domains, combining broad architectural understanding with deeper expertise in at least one area
• Strong judgement and the confidence to make architectural decisions independently

Standout/relevant backgrounds:

• Quantitative trading firms
• Hedge funds
• FinTech
• Large scale technology organisations
• Hyperscalers
• Enterprise environments operating significant infrastructure estates or data centres

This role would suit someone who has spent years building technical credibility, come from operating complex platforms, and wants to remain close to technology rather than moving further into management.