101 to 125 of 271 High Availability Jobs in England

real‐time low‐latency trading platforms around the clock and provides direct platform support for Cboe's European operations. Responsibilities Technical Leadership & System Availability: Provide technical leadership, support and operational oversight to sustain resiliency and high availability of critical business operations across European and GTH market sessions ...

strategy as we scale our global fintech platform. You will be the primary technical authority for our system design, responsible for ensuring that our high-throughput transaction engines and complex microservices ecosystem remain resilient, performant, and secure under massive load. You will partner with Engineering, Product, and Security leadership … Doing Own the Architectural Vision: Define and drive the long-term technical architecture for KAST, ensuring our platform evolves to meet the demands of high-throughput transactional volume. Design for Scale & Reliability: Lead the design and review of our distributed systems, ensuring our microservices architecture is built for fault ...

projects, manage infrastructure, and provide remote and on-site support. You'll work closely with customers and internal teams to deliver secure, scalable, and high-quality IT solutions. Key Responsibilities Design, implement, and support secure, scalable network solutions across multi-site customer environments. Lead the delivery of network … core infrastructure projects, including new installations, upgrades, and migrations. Manage and maintain on-prem and cloud infrastructure, ensuring high availability, performance, and security. Provide senior-level support for routing, switching, firewalls, VPNs, and WAN connectivity. Administer and support Windows Server environments, virtualised platforms (Hyper-V), and associated services. ...

Intune. Strong experience in managing Windows Server environments (2016, 2019, 2022, 2025). Proficiency in automation and scripting using PowerShell. Experience with virtualisation and high availability solutions, including Hyper-V (clustered and standalone), Windows Admin Centre, and Failover Clustering. Working knowledge of SQL Server in both clustered … troubleshooting and problem-solving skills, with the ability to diagnose and resolve complex technical issues. Excellent communication skills, including the ability to produce clear, high-quality documentation such as processes, procedures, and technical designs. Positive, proactive attitude with a strong sense of ownership. Desirable: Experience designing and deploying highly ...

driven architecture, and RTF networking. Collaborate with security teams to ensure policy enforcement, encryption, identity, and SC-compliant design. Oversee NFRs including performance, scaling, high availability, disaster recovery, and observability. Guide developers and DevOps engineers through build, test, deployment, and operational handover. Ensure alignment with enterprise platforms including … effort estimation, planning, stakeholder engagement, and technical risk management. Contribute to the evolution of C4EE playbooks, templates, governance artefacts, and reusable assets. Key Deliverables High-level and low-level design documents API specifications and sequence diagrams Architecture Decision Records (ADRs) Reusable patterns, templates, and standards Architecture review outputs ...

platform is moving towards a modern, event-driven architecture, leveraging APIs, cloud-native services, and advanced DevOps tooling to deliver secure, scalable, and high-performing solutions. We work closely with partners across the Group, including Data & Machine Learning, Consumer Lending, and Cloud Services, to deliver strategic account data products … Core Banking, you’ll play a pivotal role in designing, building, and supporting the tools and processes that enable our teams to deliver high-quality software at pace. You’ll work collaboratively across engineering, product, and operations teams to ensure our platform is secure, resilient, and continuously improving. What ...

Current DV Clearance Required We are looking for an experienced Senior Network Engineer to support the delivery of secure, enterprise-scale infrastructure within a high-security defence environment. This contract offers the opportunity to work on complex networking projects, helping to design, deploy and optimise software-defined networking solutions … support VMware NSX-T networking solutions. Deliver software-defined networking (SDN) architectures across secure enterprise environments. Configure and troubleshoot complex network infrastructure, ensuring high availability and performance. Provide technical leadership and guidance to engineers throughout project delivery. Collaborate with infrastructure, virtualisation and security teams to deliver integrated networking ...

development of business-critical systems. You will have the chance to contribute to meaningful technical improvements, work closely with experienced colleagues, and help shape high-quality database solutions that support the wider business. SQL Server Database Developer - Key Responsibilities: - Design, develop and maintain high-quality T-SQL including … database structures to support application and integration requirements - Proactively analyse and resolve database performance bottlenecks using execution plans, indexing strategies, and query refactoring - Optimise high-volume transactional queries and reporting workloads within SQL Server, using T-SQL and SQL Server Management Studio - Design and support scalable database patterns suitable ...

will be accountable for the design and ownership, and continuous improvement of the organisation's network solutions, ensuring secure, resilient, and high-performing connectivity across 1,000 sites and corporate environments. Responsible for leading the network engineering team, mentoring two network engineers, and managing the delivery and lifecycle … mentor, and develop a team of network engineers, managing their workload, performance, and professional growth. Allocate tasks, set priorities, and ensure the team delivers high-quality support and project outcomes within agreed SLAs. Operational Excellence Accountable for the operational integrity of WAN, LAN, Wi-Fi, and cloud-based network ...

support a growing, modern SaaS environment. You will work closely with engineers, analysts, and senior stakeholders to translate business needs into scalable, secure, and high performing solutions. You will also take ownership of reviewing existing systems, identifying opportunities to simplify, refactor, and improve performance and reusability. This … system is innovative and cost-effective. Quality Assurance: Ensure software designs and implementations follow best practices, coding standards, and appropriate testing methodologies. Guarantee high performance, security, and scalability of the architecture. Documentation & Communication: Create clear, comprehensive, and maintainable documentation for system architectures, workflows, and technical specifications. Communicate effectively with ...

growing, modern SaaS environment. \n You will work closely with engineers, analysts, and senior stakeholders to translate business needs into scalable, secure, and high performing solutions. You will also take ownership of reviewing existing systems, identifying opportunities to simplify, refactor, and improve performance and reusability. \n This … that the system is innovative and cost-effective.Quality Assurance: Ensure software designs and implementations follow best practices, coding standards, and appropriate testing methodologies. Guarantee high performance, security, and scalability of the architecture.Documentation & Communication: Create clear, comprehensive, and maintainable documentation for system architectures, workflows, and technical specifications. Communicate effectively with ...

seeking a Senior Infrastructure Engineer with strong, recent hands-on experience in Oracle Cloud Infrastructure (OCI) and Oracle Exadata to join a high-profile programme. Core Purpose of the Role This is a senior technical role focused on: Leading and supporting Oracle-based infrastructure services in OCI and Exadata … Oracle RAC, ASM, AFD, HANFS, TAF Data Guard configuration and support RMAN backup and recovery OEM and OCI Database Management Patching, upgrades, and high availability mission-critical environments Cloud & Infrastructure Strong OCI experience (critical requirement) AWS experience (especially network segregation/security) Linux and/or AIX environments ...

switching, VPN technologies, firewalls, WAN connectivity, and Wi-Fi. Proficient with VMware vSphere/ESXi, Virtual infrastructure management, virtual server administration and maintenance, high availability and disaster recovery solutions. Windows, networking, cloud or security certifications would be advantageous Good experience with Veeam backup and disaster recovery solutions, cyber … best practices. Provide 3rd line technical support and act as a senior escalation point. Work closely with internal stakeholders and external suppliers to deliver high-quality IT services. Company benefits: 22 days Holiday + Bank Holiday (Rising 1 day every year up to 5 years) Pension (4% matched) Employee ...

based applications in a fast‐paced production environment. The role requires hands‐on expertise in monitoring, incident management, troubleshooting, release support, and ensuring high availability and stability of business‐critical platforms. In this role, you’ll make an impact in the following ways: Provide L2/L3 production … environments. Familiarity with scripting and troubleshooting middleware/interfaces. Strong knowledge of release support, service recovery, and operational governance. Ability to work in a high‐pressure environment with strong ownership and accountability. Demonstrated ability to ramp up quickly on new applications, platforms, and support processes, with strong learning agility ...

supporting and developing the Clients Microsoft infrastructure across Azure, Microsoft 365 and hybrid environments. You will help ensure our systems remain secure, resilient and high performing, while contributing to the continued development of our cloud services. Key tasks and responsibilities You will: Design, implement and support Azure infrastructure … processes. Good understanding of core networking concepts (DNS, DHCP, firewalls, secure connectivity). PowerShell or automation experience to improve efficiency and consistency. Experience supporting high availability, resilience and performance optimisation within cloud environments. Experience operating at 2nd/3rd line support level within an enterprise infrastructure environment. Strong ...

Windows Server infrastructure. Assist with networking issues including TCP/IP, DHCP, DNS, routing, and firewall support. Collaborate with the team to ensure high availability and reliability of client systems. Document solutions and knowledge for the team to improve operational efficiency. Participate in day-to-day support tasks ...

successful in this role, you will have the following skills, experience, and qualifications: Essential Experience: Experience building robust software deployed into high-availability production environments, with a strong emphasis on software quality, reliability, and maintainability. Proven experience working within Agile/Scrum delivery teams , contributing to iterative, collaborative ...

Linux environments in AWS. Good knowledge of Terraform or other Infrastructure as Code tooling. Strong understanding of infrastructure security, backup strategies, disaster recovery, and high availability. Experience monitoring and supporting production infrastructure within business-critical environments. Knowledge of Active Directory, DNS, DHCP, and hybrid cloud connectivity would be advantageous. ...

Responsibilities: Lead the design, build, and replacement of legacy Cisco Wireless infrastructure with modern Cisco Catalyst 9800 WLC architecture, ensuring scalable, resilient, and high-performance wireless services Define and deliver end-to-end wireless migration strategies, including planning, staging, cutover execution, and post-implementation optimisation Architect and implement high-availability 9800 WLC deployments (SSO, redundancy models), ensuring minimal service disruption and operational resilience Design and implement enterprise wireless solutions, including SSID segmentation, policy profiles, VLAN mapping, RF optimisation, and seamless roaming Own the design, upgrade, and lifecycle management of Cisco ISE environments, including version upgrades, patching strategies ...

Infrastructure Specialist TechNest are looking for an Infrastructure Specialist with responsibility supporting and maintaining enterprise datacentre and cloud environments. Focused on ensuring the availability, security, performance, and scalability of hybrid infrastructure, while supporting business-critical systems and technology transformation initiatives. Key Responsibilities Managed datacentre operations, including power, cooling, colocation … facilities, and critical infrastructure to ensure high availability and operational resilience. Administered and supported Active Directory, Remote Desktop Services (RDS), Azure AD, and identity management solutions, including MFA and federation technologies. Developed and maintained PowerShell automation scripts for provisioning, configuration management, reporting, and operational efficiency. Supported Windows Server ...

assurance and handover into live service. What You'll Be Doing Lead the design and delivery of Oracle Linux KVM/OLVM platforms Produce high-quality HLD & LLD documentation Architect and implement: KVM hosts, clusters & virtualisation environments Storage domains (NFS, iSCSI, FC) Logical networks, VLANs & VM standards Deliver build … configuration, migration and platform validation Design for high availability, resilience & disaster recovery Define standards across: Security hardening & compliance Performance & capacity optimisation Backup, monitoring & automation Work closely with infra, network, security & application teams Provide technical leadership and mentoring What You'll Bring Deep, hands-on expertise in Oracle Linux ...

Oracle Linux KVM and Oracle Linux Virtualization Manager (OLVM) * Own architecture and design across virtualisation platforms, including clusters, hosts and networking * Produce high-quality HLD and LLD documentation covering architecture, security, and operational models * Lead build, configuration, and deployment of KVM/OLVM environments * Define standards across security hardening … patching, monitoring and resilience * Design and implement high availability, disaster recovery, and live migration solutions * Collaborate with infrastructure, security and application teams to ensure integration and supportability * Support governance, assurance and technical design reviews * Drive implementation, migration, and operational readiness planning Key Skills & Experience * Strong hands-on experience ...

Platform Engineer (Data Platforms) Location: London We're looking for a Platform Engineer to build and maintain scalable, secure and high-performance data platforms . You'll play a key role in ensuring reliable data services while working closely with data scientists, analysts and engineering teams. What … doing Building and maintaining scalable data platform infrastructure Ensuring high availability, performance and security of data services Developing and maintaining data pipelines Collaborating with data teams to integrate tools and services Troubleshooting complex platform and data infrastructure issues Supporting cross-team integration with wider systems and applications Driving ...

lifecycle. Essential Skills Proven experience designing and delivering enterprise OpenStack environments. Strong infrastructure engineering background. Experience building OpenStack platforms from greenfield. Linux systems engineering. High Availability (HA) and resilient infrastructure design. Networking, storage and virtualisation expertise. Infrastructure as Code using Ansible and/or Terraform. Excellent stakeholder management … Neutron, Nova, Keystone, Glance, Cinder and Heat Secure by Design Automation and CI/CD This is a fantastic opportunity to join a high-profile programme where you'll have the autonomy to shape the architecture, influence technical direction and deliver a modern enterprise private cloud platform. ...

risk, architecture, and product leadership to align platform strategy with regulatory and business priorities. Lead, coach, and develop engineering managers and senior engineers, building high-performing teams rooted in technical excellence. Manage significant budgets, investment priorities, and vendor relationships. Engage senior stakeholders (C-Level) effectively, translating complex technical topics … Preferred Experience in enterprise-scale multi-cloud environments. Familiarity with CNCF ecosystem tools (e.g. service mesh, observability stacks, policy engines). Experience in regulated, high-availability environments (e.g. financial services). Experience in modern software engineering practices and languages (Python, Go). Experience building or enabling platforms that ...