1 to 25 of 508 High Availability Jobs in London

Windows Server Administrator is responsible for the administration, maintenance, optimization, and support of Citrix virtual environments and Microsoft Windows Server infrastructure. The role ensures high availability, performance, security, and reliability of desktop and application virtualization services and core Windows-based systems.Key Responsibilities Citrix Administration:• Administer and support Citrix … DHCP, File Services, Print Services, and IIS• Perform server hardening, performance tuning, and capacity planning• Manage and optimize Failover Clustering, DFS, and high availability services• Experience with high availability, clustering, and DR designs• Strong understanding of security, compliance, and identity management• Advanced patch management strategy (WSUS ...

Oracle SQL and PL/SQLStrong knowledge/experience of XML, XSL, XSLTExperience with a track record in supporting large and complex applications within high availability/high volume environments.Must be able to work individually or within a team to ensure internal and external SLAs are met.Excellent … Oracle SQL and PL/SQLStrong knowledge/experience of XML, XSL, XSLTExperience with a track record in supporting large and complex applications within high availability/high volume environments.Must be able to work individually or within a team to ensure internal and external SLAs are met.Excellent ...

Oracle SQL and PL/SQLStrong knowledge/experience of XML, XSL, XSLTExperience with a track record in supporting large and complex applications within high availability/high volume environments. Must be able to work individually or within a team to ensure internal and external SLAs … Oracle SQL and PL/SQLStrong knowledge/experience of XML, XSL, XSLTExperience with a track record in supporting large and complex applications within high availability/high volume environments. Must be able to work individually or within a team to ensure internal and external SLAs ...

issues Liaise with stakeholders and technical teams across the business; manage vendor relationships and elevate hardware/software issues as required Design and implement high-availability architectures across on-premises and cloud environments, ensuring minimal downtime and service continuity Build VMware hosts; troubleshoot ESX host and SAN-related … monitor VM backups on Rubrik; execute daily monitoring checks and ensure storage/backup procedures function correctly Design and build servers’ architecture considering High Availability and DR; carry out capacity planning; develop, manage, and test backup and recovery plans Automate daily operational tasks; define and apply GPOs; control ...

multiple environments.Automate infrastructure provisioning, deployment, configuration, database schema creation, and operational workflows across cloud and on-prem platforms.Support production systems with a focus on high availability, disaster recovery, incident response, vulnerability management, patching, and change management.Containerize applications and support deployments using container orchestration platforms.Partner with development teams … configuration management with Terraform, Ansible, Chef, or similar. Infrastructure & Operations Strong understanding of networking, routing, and traffic flow across distributed systems. Knowledge of high availability, resiliency, capacity, and latency considerations. Experience supporting customer-facing, low-latency, high-availability, or other business-critical platforms. Monitoring, logging ...

Automate infrastructure provisioning, deployment, configuration, database schema creation, and operational workflows across cloud and on-prem platforms.* Support production systems with a focus on high availability, disaster recovery, incident response, vulnerability management, patching, and change management.* Containerize applications and support deployments using container orchestration platforms.* Partner with development … management with Terraform, Ansible, Chef, or similar.* **Infrastructure & Operations** + Strong understanding of networking, routing, and traffic flow across distributed systems. + Knowledge of high availability, resiliency, capacity, and latency considerations. + Experience supporting customer-facing, low-latency, high-availability, or other business-critical platforms. + ...

production idioms, while meeting the diverse and often complex business requirements of a global 247 trading operation, while balancing stringent non-functional demands for availability, latency, and resilience.Critically, you will lean heavily into AI-driven development. Using Goldman Sachs' AI tooling and agentic coding assistants, you will govern multiple … magnitude higher volumes at lower operational costs, directly contributing to the firm's competitive and commercial edge.Build for the future: Design and implement high-availability, multi-region, event-driven services on a modern cloud-native platform, setting the architectural standard for years to come.What You Will DoDesign, build ...

management firm that provides a wide range of services worldwide to a substantial and diversified client base that includes corporations, financial institutions, governments and high net‐worth individuals. The Role We are seeking a skilled and experienced Lead Site Reliability Platform Engineer (SRE) to join our team. The ideal … candidate will be responsible for ensuring the reliability, performance, and scalability of mission‐critical, high‐availability, high‐throughput systems and infrastructure. This role involves leading collaboration with cross‐functional teams and implementing best practices in SRE, DevOps, and cyber security to enhance our operational efficiency and security ...

remote for our growing team in the UK and rest of Europe.About the roleThe CICS Mainframe Systems Programmer is responsible for ensuring the stability, availability, performance, and continuous improvement of CICS services within the IBM Mainframe environment. The role requires strong technical expertise, domain knowledge, and specialist skills … solution design, deployment planning, configuration, testing, and ongoing operational support. The successful candidate will oversee the management and support of all CICS services, ensure high availability of business-critical applications, provide technical leadership during incident resolution, and collaborate with development and application support teams to deliver robust solutions.The ...

growing team in the UK and rest of Europe. About the role The CICS Mainframe Systems Programmer is responsible for ensuring the stability, availability, performance, and continuous improvement of CICS services within the IBM Mainframe environment. The role requires strong technical expertise, domain knowledge, and specialist skills to operate … solution design, deployment planning, configuration, testing, and ongoing operational support. The successful candidate will oversee the management and support of all CICS services, ensure high availability of business-critical applications, provide technical leadership during incident resolution, and collaborate with development and application support teams to deliver robust solutions. ...

Network and Voice Engineer to design, support and enhance resilient enterprise networks and unified communications within a regulated financial services environment. You will ensure high availability, performance, security and service quality across LAN/WAN, data centre connectivity, cloud networking and voice platforms, working closely with infrastructure, security … service management teams.Key responsibilities Design, implement and maintain routing and switching, including VLANs, STP, QoS, OSPF/BGP and high-availability patterns.Support WAN and remote connectivity (MPLS/SD-WAN, VPN, IPSec/SSL), optimising performance and resilience.Administer network security controls such as firewalls, NAC (e.g., 802.1X), segmentation ...

Network and Voice Engineer to design, support and enhance resilient enterprise networks and unified communications within a regulated financial services environment. You will ensure high availability, performance, security and service quality across LAN/WAN, data centre connectivity, cloud networking and voice platforms, working closely with infrastructure, security … service management teams. Key responsibilities Design, implement and maintain routing and switching, including VLANs, STP, QoS, OSPF/BGP and high-availability patterns. Support WAN and remote connectivity (MPLS/SD-WAN, VPN, IPSec/SSL), optimising performance and resilience. Administer network security controls such as firewalls ...

enterprise environments.Plan and execute operating system upgrades and software maintenance activities using SMP/E.Administer and support large-scale Parallel Sysplex environments to ensure high availability and performance.Perform system performance monitoring, capacity planning, and resource optimization.Analyse and resolve complex system-level issues involving z/OS, middleware … support, infrastructure, security, and operations teams to ensure platform stability.Implement software maintenance, fixes, service packs, and vendor-recommended updates.Support disaster recovery, business continuity, and high-availability initiatives.Maintain system security controls and ensure compliance with organizational standards.Create and maintain technical documentation, procedures, and operational runbooks.Participate in root cause analysis ...

environments. Plan and execute operating system upgrades and software maintenance activities using SMP/E.Administer and support large-scale Parallel Sysplex environments to ensure high availability and performance. Perform system performance monitoring, capacity planning, and resource optimization. Analyse and resolve complex system-level issues involving z/… security, and operations teams to ensure platform stability. Implement software maintenance, fixes, service packs, and vendor-recommended updates. Support disaster recovery, business continuity, and high-availability initiatives. Maintain system security controls and ensure compliance with organizational standards. Create and maintain technical documentation, procedures, and operational runbooks. Participate ...

Plan and execute operating system upgrades and software maintenance activities using SMP/E. Administer and support large-scale Parallel Sysplex environments to ensure high availability and performance. Perform system performance monitoring, capacity planning, and resource optimization. Analyse and resolve complex system-level issues involving z/… security, and operations teams to ensure platform stability. Implement software maintenance, fixes, service packs, and vendor-recommended updates. Support disaster recovery, business continuity, and high-availability initiatives. Maintain system security controls and ensure compliance with organizational standards. Create and maintain technical documentation, procedures, and operational runbooks. Participate ...

orchestrated enterprise platform. Eliminate technology silos through API‐led integration, middleware, and intelligent orchestration agents. Drive enterprise data governance, treating corporate data as a high‐quality, accessible, and AI‐ready business asset. Build scalable, modular systems designed to support long‐term business growth and emerging generative AI technologies. Ensure … enabled automation to reduce manual interventions. Improve SLA performance and reduce operational bottlenecks through predictive routing and resolution. Enterprise Reliability & AI Governance Ensure high availability and reliability of business‐critical systems (24/7 environments) using AI‐driven predictive maintenance. Establish clear SLAs, KPIs, and operational dashboards. Strengthen ...

with particular emphasis on Cisco Secure Firewall and advanced BGP. Key Responsibilities Design and deployment of a new Cisco Secure Firewall Management Center (FMC) High Availability pair Deployment and configuration of HA pair Cisco Secure Firewalls Migration of existing legacy firewall configurations to the new environment Review … Strong hands-on experience with Cisco Secure Firewall/FTD Strong experience with Cisco Firewall Management Center (FMC) Experience deploying FMC and firewalls in High Availability configurations Proven experience with firewall migrations and configuration optimisation Advanced BGP knowledge, including configuration and troubleshooting Strong understanding of routing protocols ...

team on an initial three‐month contract to take ownership of the database infrastructure that underpins SilverRail’s rail distribution platforms. These systems process high volumes of search, booking and ticketing transactions for rail operators, retailers and travellers across the UK, Europe, North America and Australia/APAC … schema design, query and database optimisation, and cloud‐hosted database infrastructure from day one. We are looking for someone who has supported systems with high transaction volumes and strict availability requirements, such as travel, e‐commerce or financial services. Key Responsibilities Database Administration & Design Design, implement and maintain ...

technical decision-making. Sets technical direction for large projects or teams, driving innovation, and solving organization-wide problems.Performance Optimization: Focuses on designing systems for high performance, scalability, and reliability.Ownership: Proactively identifies areas of products and systems that currently have problems or will develop problems as well as makes plans … including product managers, designers, developers, and executives, to align architectural designs with business needs and customer expectations.Software Development: Designs, develops, and maintains sophisticated, scalable, high-performance data software solutions, ensuring they are efficient, scalable, and meet business equirements with architectural excellence for our big data platform at petabyte scale. ...

Prepurchase Platform group owns the backend services that power every fan's path to a ticket. We handle event discovery, real-time seat availability, and interactive venue experiences at massive scale, processing billions of API calls during peakon-sales. Our engineers build systems that must be fast, resilient … reaching a fan is a problem, not a data point; treat it accordingly and act with urgency regardless of volume. Build end-to-end, high-availability systems that handle extreme traffic spikes during high-demand on-sales without degradation. Lead platform modernization initiatives - migrating legacy services ...

Build resilient, scalable, fault-tolerant infrastructure for WRITER's high-traffic enterprise generative AI platform Move between SRE, DevOps, Infrastructure, and Platform initiatives as priorities shift Automate operational tasks and infrastructure management with Python or Go Design and operate infrastructure across AWS, GCP, and Azure Work with Kubernetes, Helm … director of engineering Requirements 5+ years of experience in infrastructure engineering, DevOps, or a similar role focused on building and operating large-scale, high-availability production systems at a high-growth product company Experience running containerisation in production Experience with Helm and Terraform or Pulumi ...

risks are actively managed and outcomes are delivered with appropriate quality, control and operational readiness.• Ensure technology decisions support client experience, payment reliability, platform availability, operational efficiency and front-to-back process quality across the FX payments lifecycle.• Build trusted relationships with senior stakeholders across Markets, Operations, Technology, Risk … leadership coverage across locations and time zones.• Attract, develop and retain senior engineering, architecture, delivery and production talent capable of operating and evolving a high-volume, high-availability, client-facing FX payments platform.• Set clear expectations for direct reports and their teams, linking individual objectives to platform ...

environments, from development to mission-critical production systems.• Configure and maintain database servers and processes, including monitoring of system health and performance, to ensure high levels of performance, availability, and security.• Database performance tuning.• Planning, deploying, maintaining, troubleshooting of high-availability database environments (RAC. Dataguard etc. … monitoring and troubleshooting tools• Experience with backups, restores and recovery models• Experience with database administration• Experience with incident and problem queue management.• Knowledge of High Availability (HA) and Disaster Recovery (DR) options for Oracle• Experience working with Linux, Windows & Unix servers• Excellent written and verbal communication, problem solving ...

networks supporting Global’s live and always-on services are resilient, secure, scalable and aligned to business needs. Global operates a geographically distributed, high-availability network with characteristics similar to a service provider, supporting live broadcast and a nationwide outdoor estate.As Head of Networks at Global, you will … ResponsibilitiesNetwork Strategy, Service Ownership & Delivery (40%): Define and lead the roadmap for Global’s network services and infrastructure, ensuring they support resilient, secure and high-performing services across live and business-critical environments. Oversee design, delivery and lifecycle management of core network services, balancing operational stability with future growth ...

delivery pipelines across our digital and broadcast platforms.The successful candidate will play a key role in enabling continuous delivery, improving system reliability, and supporting high-profile clients and live event services, ensuring optimal performance and resilience across all environments.Key Responsibilities and AccountabilitiesDesign, build, and maintain scalable cloud infrastructure … enable efficient, reliable software delivery across multiple teams.Automate infrastructure provisioning using Infrastructure as Code tools such as Terraform, CloudFormation, or similar.Monitor system performance, availability, and reliability using observability tools such as Prometheus, Grafana, and ELK stack.Ensure high availability and disaster recovery strategies are in place and tested ...