Lead Infrastructure Engineer

7 days ago

London, United Kingdom Quant Capital Full time

Lead Infrastructure Engineer – Hands-on, Trading Technology London – Hybrid up tp £150,000 + Bonus Quant Capital is working with a global market-making firm looking for a Lead Infrastructure Engineer 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 3+ years in infrastructure leadership within trading, market-making or high-performance engineering environments 8+ years of experience 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) Windows Server Active Directory 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 identity (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.

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