Top Infrastructure Engineer Jobs in London

Leads infrastructure engineering for enterprise proxy and secure gateway environments. Responsibilities include troubleshooting, deploying and migrating Broadcom and Symantec proxy technologies, improving runbooks and change processes, collaborating with stakeholders, automating proxy operations, supporting 24/7 on-call coverage, and mentoring team members. The role also requires validating AI-assisted recommendations while maintaining security, resiliency, traceability, and auditability.

Design, deploy, and support scalable backend infrastructure and server architectures. Build and optimize CI/CD pipelines, manage cloud environments and build platforms, improve engineering workflows and tooling, contribute to architecture planning, and support reliable high-availability live services. The role also involves technical communication, best-practice sharing, and collaboration across engineering teams.

Manage, monitor, support, test, and troubleshoot Trader Voice infrastructure in an enterprise financial-services environment. Provide L3 engineering, health checks, release certification, production change support, vendor coordination, controls compliance, and SLA delivery. The role requires deep expertise in Trader Voice platforms, SIP, VoIP telephony, virtualization, databases, Cisco telephony, collaboration systems, private wires, Hoot Networks, and voice recording technologies.

Designs and improves security controls across endpoints, servers, identity systems, cloud services, SaaS applications, networks, and data flows. The role includes hardening, vulnerability remediation, access controls, monitoring, automation, security assessments, incident investigation, and architectural improvements. The engineer partners across infrastructure, engineering, identity, legal, and security teams to reduce attack surface and strengthen durable security practices. Applicants need at least five years of hands-on security experience and an active TS/SCI clearance or eligibility to obtain one.

Design and operate resilient AWS infrastructure using Terraform, automate operational workflows, manage PostgreSQL and DynamoDB platforms, ensure secure zero-downtime upgrades, and shape infrastructure standards and technical direction. The role includes incident response, capacity planning, load testing, cost modeling, disaster recovery, mentoring, and cross-team technical leadership in a fully remote environment.

Build and operate auditable multi-agent systems on Cloudflare’s platform for infrastructure forecasting, supply planning, cost modeling, approvals, and decision analysis. The role involves designing durable workflows, integrating statistical and machine learning models, creating BigQuery pipelines, enforcing risk controls and auditability, and authoring technical specifications and architectural standards.

Designs, configures, maintains, and supports IBM z Mainframe hardware infrastructure. Responsibilities include developing infrastructure-as-code and automation solutions, planning hardware migrations, managing GDPS disaster recovery architectures, building CI/CD pipelines, improving observability, supporting production issues, and collaborating with product owners, vendors, and technology teams.

Supports and maintains enterprise IT infrastructure across servers, storage, virtualization, cloud, Microsoft 365, networking, telephony, and backup systems. Owns escalated service desk tickets, assists with infrastructure projects, audits, compliance, lifecycle management, documentation, vendor coordination, and critical incident response. The role also mentors service desk engineers, translates business requirements into technical solutions, supports global teams, and travels to international offices as needed.

Design, deliver, and support cloud and hybrid infrastructure while migrating workloads to AWS. Build Terraform-based infrastructure automation and GitHub CI/CD pipelines, troubleshoot complex incidents, improve resilience and monitoring, document technical solutions, manage operational change, collaborate with suppliers, and mentor engineers. The role establishes modern engineering standards across networking, identity, security, virtualization, storage, backup, disaster recovery, and cloud platforms.

Leads enterprise-scale Microsoft Hyper-V infrastructure engineering across global data centers. Designs resilient clusters, automates provisioning and compliance with PowerShell and DSC, develops C#/.NET orchestration services, benchmarks performance, troubleshoots full-stack infrastructure issues, evaluates server hardware, remediates vulnerabilities, documents architectures, and mentors engineers. The role also promotes validated, auditable use of enterprise AI capabilities in infrastructure operations.

Design, deploy, and operate highly available database infrastructure across multi-cloud, virtualized, and Kubernetes environments. Migrate database services from virtual machines to Kubernetes, support disaster recovery and backup strategies, tune performance, and implement observability, logging, and alerting. Collaborate with engineering teams to resolve infrastructure challenges and automate workflows using scripting and infrastructure orchestration tools.

Designs, automates, operates, and hardens enterprise-scale Hyper-V and VMware VCF virtualization platforms across global data centers. Responsibilities include cluster architecture, provisioning, patching, performance analysis, full-stack troubleshooting, capacity planning, vulnerability remediation, production change management, CI/CD automation, documentation, and mentoring. The role also promotes validated, auditable AI-assisted infrastructure engineering practices.

Build and support infrastructure across physical data centers, AWS, and GCP. Design secure network topologies, automate infrastructure provisioning, maintain containers and Linux systems, and develop reusable infrastructure tooling. Collaborate with software engineering, security, and developer experience teams; diagnose critical system and network failures; implement infrastructure patterns, improve operational efficiency, and lead projects through timely delivery.

Designs and operates large-scale Kubernetes and AWS infrastructure supporting over 80 million monthly users. Owns EKS lifecycle, networking, autoscaling, workload isolation, Terraform and Helm deployments, data infrastructure patterns for PostgreSQL, DynamoDB, and Kafka, self-service golden paths, resilience, disaster recovery, observability, and privacy-focused compliance. The role sets cross-team technical direction, improves platform reliability, and enables product engineers to ship securely and independently.

Designs, operates, and improves secure, resilient cloud, physical infrastructure, and networking environments. Leads networking across virtual networks, VLANs, routing, switching, firewalls, and hybrid cloud connectivity; troubleshoots complex infrastructure issues; automates provisioning with Infrastructure as Code and scripting; embeds security and compliance; and collaborates with technology teams on reliable infrastructure solutions and transformation initiatives.

Lead infrastructure engineering for critical market data platforms: provide production support, implement changes, lead architecture and automation workstreams, validate AI-assisted recommendations, ensure performance, resilience and data quality, and collaborate across platforms to modernize and stabilize trading market data infrastructure.

Designs, deploys, and supports high-performance, low-latency networks and data center connectivity. Automates network configuration and observability using Ansible and Terraform, supports broader infrastructure, manages vendors and circuit providers, and plans data center work. The role requires coding ability, network and systems administration experience, routing and switching knowledge, Linux proficiency, firewall automation, troubleshooting skills, and familiarity with monitoring and testing tools.

Leads enterprise proxy, perimeter, and SSE/SASE security engineering across US operations. Designs and operates Zero Trust, identity-aware proxy, secure gateway, egress, segmentation, and cloud interconnect architectures. Owns roadmap execution, governance, remediation, lifecycle modernization, incident management, observability, and resiliency. Supervises engineers, establishes reusable security patterns, coordinates cross-functional delivery, and promotes secure, responsible AI-assisted engineering practices.

Own and operate Humanoid’s cloud data platform, including infrastructure, software services, data workflows, CI/CD, monitoring, security, reliability, and recovery. Translate internal engineering needs into technical work, lead external contractors, review deliverables, and ensure implementations are tested, documented, and production-ready. The role combines hands-on platform, cloud, full-stack, and data engineering with technical delivery leadership.

Own and improve multi-cloud production infrastructure across GCP, AWS, and Azure. Build developer platforms, CI/CD pipelines, deployment automation, Terraform modules, and production Kubernetes environments. Lead incident response, root-cause remediation, observability, networking, security, cost optimization, and reliability initiatives. The role requires hands-on automation and programming, collaboration with security and application teams, mentoring, global on-call participation, and regular overlap with U.S. Pacific Time.

Own and improve AWS infrastructure, Kubernetes clusters, databases, networking, security, observability, and cloud costs. Participate in on-call support, incident response, maintenance, and SLA improvement. Build CI/CD pipelines, automated testing, rollback processes, and developer tooling while documenting infrastructure and supporting SOC2 compliance.

Manage and support Azure and Microsoft 365 infrastructure while delivering cybersecurity improvements. Responsibilities include SOC liaison work, security alert triage, vulnerability and patch management, Cyber Essentials certification, incident response, data protection controls, PowerShell automation, documentation, and backup and disaster recovery. The role supports Windows and macOS environments and collaborates with architecture, infrastructure, service desk, and global teams.

Build and improve high-throughput data infrastructure processing billions of market data points daily. Solve distributed-systems challenges, collaborate with quantitative researchers and traders, improve platform reliability, perform incident response and root-cause analysis, and contribute through code reviews and mentoring. The role uses Python and Java alongside Kafka, ArcticDB, Airflow, Spark, and database technologies at multi-petabyte scale.

Leads the design, implementation, maintenance, and continuous improvement of resilient infrastructure automation for algorithmic trading. Provides Linux-based electronic trading platform expertise, partners with development and infrastructure teams, manages technical risk, and supports scalable systems. The role includes technical leadership, mentoring engineers and SREs, full-lifecycle ownership, incident review, and adoption of SRE practices. Advanced Python, Unix/Linux, infrastructure automation, debugging, CI, Git, Jenkins, and software engineering expertise are required.

Leads the design, deployment, operation, and optimization of enterprise network security platforms across AWS and on-premises environments. Builds infrastructure automation with Terraform, Python, and Ansible; integrates security controls into CI/CD pipelines; resolves complex infrastructure issues; and supports resilience, compliance, governance, and incident management. Acts as a technical authority, mentors engineers, collaborates with cloud and cybersecurity teams, and helps define network security strategy and standards.