Head of Infrastructure in London

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Job Description

Head of Infrastructure – Trading Technology

London – Hybrid

£Competitive + Bonus

Quant Capital is working with a global market-making firm looking for a Head of Infrastructure to lead the buildout and evolution of its trading platform across cloud and on-prem environments. This is a senior technical leadership role with full ownership of infrastructure strategy, delivery, and scale across low-latency trading systems.

This hire will drive a major AWS migration, build greenfield environments, modernise legacy systems, and shape the long-term engineering roadmap. You’ll lead a small but senior infrastructure function with real autonomy and impact.

The Role

• Own infrastructure architecture across cloud, on-prem and hybrid platforms
• Lead end-to-end AWS migration and modernisation strategy
• Build greenfield environments for trading and research workloads
• Design and operate highly available, low-latency global infrastructure
• Take ownership of Microsoft services, Active Directory and core networking
• Engineer secure connectivity across firewalls, routing and multi-site links
• Drive network security, segmentation and access control strategy
• Lead and grow a high-performing infrastructure/DevOps team
• Partner closely with engineering, trading and risk functions
• Automate provisioning and deployment with IaC (CloudFormation/Terraform/Ansible)
• Scale monitoring, cost optimisation and system reliability in production

Background

• 7+ years in infrastructure leadership within trading, market-making or high-performance engineering environments
• Strong AWS architecture and hybrid (cloud + on-prem) experience
• Deep networking background: routing, switching, low-latency connectivity
• Strong understanding of reliability engineering and autoscaling systems
• Prior experience building and scaling teams in high-performing environments
• Confident interacting with technical and trading leadership

Core Skills

• AWS (VPC, IAM, S3, ECS/EKS, Direct Connect, Transit Gateway, CloudFormation)
• Networking: BGP, OSPF, MPLS, VLANs, VPNs, SD-WAN
• Firewalls and network security (Cisco ASA, Fortinet or similar)
• Linux and Windows systems engineering
• Microsoft services and (AD/Entra ID)
• CI/CD (GitLab CI or similar)
• IaC and automation (CloudFormation, Ansible, Terraform)
• Monitoring/Observability (CloudWatch, Prometheus, Grafana)
• Scripting (Python, Bash)

This is a fantastic opportunity for a Senior Infrastructure Engineer with some light management and leadership skills to step into a Head role for a growing but small team and within a fast-paced market making business.

If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.