1 to 25 of 227 High Availability Jobs in England

Main Job Purpose We are seeking an experienced Third Line Support Engineer to provide advanced technical support, own complex infrastructure issues, and ensure the high availability, security, and performance of critical IT systems. This senior hands-on role focuses on resolving escalated incidents, maintaining and optimising virtualised … deep technical troubleshooting across servers, networks, cloud platforms, virtualisation (VMware), container orchestration (Kubernetes), and Progress OpenEdge databases. Perform root-cause analysis on recurring or high-impact issues and implement preventive measures. Maintain high availability of critical systems through proactive monitoring, patching, updates, and performance tuning. Infrastructure Management ...

team. This is a key role with responsibility for the design, delivery, and ongoing support of a global enterprise network , working in a complex, high-availability environment. You will play a pivotal role in modernising network infrastructure , driving technical improvements, and providing senior-level support across the organisation. … switching, firewall, and SD-WAN solutions Integrate switches, routers, wireless controllers, SDN, load balancers, NAC servers, and cloud platforms Ensure network security, resilience, and high availability across global environments Skills & Experience Required Proven experience designing and implementing networks in a large user or enterprise environment Strong Cisco background ...

team. This is a key role with responsibility for the design, delivery, and ongoing support of a global enterprise network , working in a complex, high-availability environment. You will play a pivotal role in modernising network infrastructure , driving technical improvements, and providing senior-level support across the organisation. … switching, firewall, and SD-WAN solutions Integrate switches, routers, wireless controllers, SDN, load balancers, NAC servers, and cloud platforms Ensure network security, resilience, and high availability across global environments Skills & Experience Required Proven experience designing and implementing networks in a large user or enterprise environment Strong Cisco background ...

team. This is a key role with responsibility for the design, delivery, and ongoing support of a global enterprise network , working in a complex, high-availability environment. You will play a pivotal role in modernising network infrastructure , driving technical improvements, and providing senior-level support across the organisation. … switching, firewall, and SD-WAN solutions Integrate switches, routers, wireless controllers, SDN, load balancers, NAC servers, and cloud platforms Ensure network security, resilience, and high availability across global environments Skills & Experience Required Proven experience designing and implementing networks in a large user or enterprise environment Strong Cisco background ...

Month Contract 2 x a week on site We're looking for an experienced Infrastructure Engineer to join our team and support enterprise-scale, high-availability environments. What We're Looking For: Extensive experience with Citrix Virtual Apps and Desktops Design, build, upgrade and support of Citrix environments … Performance tuning and troubleshooting in high-availability environments Integration with Active Directory and secure access solutions Understanding of user experience optimisation in virtual desktop platforms Experience operating Citrix in secure or government environments (desirable) Citrix Certified Associate - Virtualization (CCA-V)Core administration of Citrix Virtual Apps and Desktops ...

Month Contract 2 x a week on site We’re looking for an experienced Infrastructure Engineer to join our team and support enterprise-scale, high-availability environments. What We’re Looking For: Extensive experience with Citrix Virtual Apps and Desktops Design, build, upgrade and support of Citrix environments … Performance tuning and troubleshooting in high-availability environments Integration with Active Directory and secure access solutions Understanding of user experience optimisation in virtual desktop platforms Experience operating Citrix in secure or government environments (desirable) Citrix Certified Associate – Virtualization (CCA-V) Core administration of Citrix Virtual Apps and Desktops ...

Microsoft Teams App Developer/Microsoft 365 Solutions Developer Outside IR35 | Contract | Hybrid – High Wycombe Contract: Outside IR35 Location: Hybrid (High Wycombe – on-site as required) Start: ASAP Duration: Initial contract with extension potential The Opportunity We are looking for an experienced Microsoft Teams App Developer to deliver …/closed states Confirmation of submitted votes Secret vs non-secret voting behaviour Ensure the app is reliable, accessible, and easy to use in high-pressure live meeting environments Administrative Control & Backend Systems Build backend services allowing administrators (ACCS) to: Start, end, and manage votes Define vote types, labels ...

Location: London (Hybrid) Type: Permanent Industry: High-Performance Trading/Financial Markets About the Company Immersive Finance provides institutional-grade risk infrastructure for digital asset derivatives. Our team comprises seasoned traders, quantitative researchers, and technologists with decades of experience at leading buy- and sell-side institutions. We specialise … delivering production code. 5-10 years in Finance or Trading Systems. Advanced C++ skills. Strong Python engineering experience. Strong understanding of databases (SQL and high-performance solutions). Expertise in building and supporting high-availability , mission-critical systems . Desireable Experience building and deploying docker containers. Experience ...

cluster topology, networking, and storage solutions.oDefine and implement best practices for OpenShift cluster setup, including multi-zone and multi-region deployments.oEnsure the architecture supports high availability, fault tolerance, and disaster recovery.2.Migration Design and Optimization:oAssess existing infrastructure, applications, and workloads to determine migration readiness.oDevelop detailed migration plans, including … with VMware virtualized environments.oLeverage VMware tools (e.g., vSphere, vCenter, NSX) to optimize OpenShift deployments.oConfigure and manage Pure Storage solutions (e.g., FlashArray, FlashBlade) to provide high-performance, scalable storage for OpenShift workloads.oEnsure compatibility and performance optimization between OpenShift, VMware, and Pure Storage.4.CI/CD Pipelines and DevOps Workflows:oDesign ...

cluster topology, networking, and storage solutions.oDefine and implement best practices for OpenShift cluster setup, including multi-zone and multi-region deployments.oEnsure the architecture supports high availability, fault tolerance, and disaster recovery.2.Migration Design and Optimization:oAssess existing infrastructure, applications, and workloads to determine migration readiness.oDevelop detailed migration plans, including … with VMware virtualized environments.oLeverage VMware tools (e.g., vSphere, vCenter, NSX) to optimize OpenShift deployments.oConfigure and manage Pure Storage solutions (e.g., FlashArray, FlashBlade) to provide high-performance, scalable storage for OpenShift workloads.oEnsure compatibility and performance optimization between OpenShift, VMware, and Pure Storage.4.CI/CD Pipelines and DevOps Workflows:oDesign ...

networking, and storage solutions. oDefine and implement best practices for OpenShift cluster setup, including multi-zone and multi-region deployments. oEnsure the architecture supports high availability, fault tolerance, and disaster recovery. 2.Migration Design and Optimization: oAssess existing infrastructure, applications, and workloads to determine migration readiness. oDevelop detailed migration … virtualized environments. oLeverage VMware tools (e.g., vSphere, vCenter, NSX) to optimize OpenShift deployments. oConfigure and manage Pure Storage solutions (e.g., FlashArray, FlashBlade) to provide high-performance, scalable storage for OpenShift workloads. oEnsure compatibility and performance optimization between OpenShift, VMware, and Pure Storage. 4.CI/CD Pipelines and DevOps Workflows ...

across Azure and Microsoft SQL platforms for a growing SaaS client of ours. The position supports the wider DevOps objectives by ensuring the security, availability, integrity, and end-to-end support of database services. Working as part of a DevOps team, the role is responsible for both on-premise … based database systems, including both vendor-supplied and internally developed solutions Design and implement tactical and strategic database solutions with a focus on scalability, availability, performance, and resilience Proactively monitor the SQL Server estate to ensure high availability and optimal performance Provide operational support to internal stakeholders ...

networking, and storage solutions. Define and implement best practices for OpenShift cluster setup, including multi-zone and multi-region deployments. Ensure the architecture supports high availability, fault tolerance, and disaster recovery. 2. Migration Design and Optimization Assess existing infrastructure, applications, and workloads to determine migration readiness. Develop detailed … Leverage VMware tools (e.g., vSphere, vCenter, NSX) to optimize OpenShift deployments. Configure and manage Pure Storage solutions (e.g., Flash Array, Flash Blade) to provide high-performance, scalable storage for OpenShift workloads. Ensure compatibility and performance optimization between OpenShift, VMware, and Pure Storage. 4. CI/CD Pipelines and DevOps ...

improving corporate and production IT systems, both on-premise and in the cloud. The Role You will play a key role in ensuring system availability, improving operational resilience, and supporting critical infrastructure. You'll work across Linux and Windows environments, manage cloud platforms, implement cyber security measures, and contribute … ongoing optimisation and documentation of IT systems. This is an excellent opportunity to take ownership of infrastructure that supports high-availability, security-critical services. Key Responsibilities Provision and support IT infrastructure and systems Administer Linux and Windows operating systems Manage cloud platforms (Azure, AWS, Google Cloud, Microsoft ...

Translate business and functional requirements into scalable technical architectures Design solutions addressing non-functional requirements , including performance, scalability, security, and resilience Architect high availability, disaster recovery, and business continuity solutions Support hybrid and multi-cloud architectural designs Collaborate with engineering, delivery, DevOps, and platform teams to ensure architectural … compute, storage, and platform services Experience with hybrid and multi-cloud architectures Strong understanding of non-functional requirements (scalability, performance, security, resilience) Knowledge of high availability, disaster recovery, and business continuity design Familiarity with DevOps practices and modern delivery models Active SC Clearance Nice-to-Have Skills Hands ...

maintenance and optimisation of database systems. You will work closely with application development, infrastructure and architecture teams to support business-critical systems and ensure high availability, performance and compliance. Key Responsibilities Install, configure and maintain Oracle and SQL Server database environments Perform database upgrades, patching, migrations and backup … security policies Monitor and optimise database performance (indexing, partitioning, AWR reports, tracing) Troubleshoot slow-running queries and optimise SQL code Implement and manage high availability and disaster recovery solutions including RMAN, Data Guard, ASM and SQL Server AlwaysOn Conduct backup validation, disaster recovery planning and failover testing Ensure ...

improving corporate and production IT systems, both on-premise and in the cloud. The Role You will play a key role in ensuring system availability, improving operational resilience, and supporting critical infrastructure. You'll work across Linux and Windows environments, manage cloud platforms, implement cyber security measures, and contribute … ongoing optimisation and documentation of IT systems. This is an excellent opportunity to take ownership of infrastructure that supports high-availability, security-critical services. Key Responsibilities Provision and support IT infrastructure and systems Administer Linux and Windows operating systems Manage cloud platforms (Azure, AWS, Google Cloud, Microsoft ...

environments Perform installations, patching, configuration, upgrades, backups, and recovery Manage database objects, storage, schemas, tablespaces, indexing, and access controls Ensure 24/7 availability of mission-critical operational systems OT Systems Support Work closely with SCADA, control engineers, and plant operations teams Support databases integrated with PLCs, DCS, historians … maintenance windows Troubleshoot issues impacting real-time operations and plant uptime Performance & Reliability Identify and resolve performance issues (wait events, deadlocks, slow queries) Implement high availability solutions including RAC, Data Guard, Always On, and Log Shipping Conduct proactive monitoring, tuning, and capacity planning Backup, Recovery & DR Manage RMAN ...

Senior Systems Engineer to take ownership of mission-critical, global transmission infrastructure. This is a design, automation, and ownership role where you’ll shape high-availability distributed systems powering live international events and critical content delivery. The Opportunity You’ll own and evolve a Linux-based infrastructure estate … Debian, Ubuntu) • Automation with Ansible • Infrastructure as Code (Terraform) • Cloud platforms (AWS and/or GCP) • Observability & monitoring tooling • Experience designing and operating distributed, high-availability systems • Solid networking fundamentals • Ability to work autonomously and own technical outcomes Desirable • Broadcast or telecoms background • Experience deploying systems into live ...

office) Salary: £40,000 - £50,000 DOE About the Business Our client is a well-established technology company specialising in the delivery of scalable, high-availability software solutions within a fast-paced, data-driven environment. Their platforms support business-critical systems and are designed to perform reliably under … high transaction volumes. The organisation places a strong emphasis on technical quality, stability, and continuous improvement, offering an excellent learning environment for junior technologists looking to develop their skills within a supportive and experienced team. The Role We are seeking a Junior SQL Database Administrator . In this role ...

workflows and configurations using CI/CD, SOAR, scripting and IaC tools (Terraform, Ansible). Ensure platform performance, stability and reliability, including capacity planning, high availability, disaster recovery and proactive monitoring. What you will bring: Hands-on experience with Elastic Security and Splunk ES, including detection engineering, indexing … detection quality and noise reduction. Experience with automation and Infrastructure-as-Code in SIEM environments. Deep understanding of SIEM platform operations, including clustering, high availability, disaster recovery, scaling and performance optimisation. Strong problem-solving skills with a proactive approach to improving security operations. If you are interested ...

fundamentals, that would land well. Day to day Youll be responsible for managing and optimising the MS SQL estate, ensuring performance, integrity and availability across business-critical systems. Key parts of the role will include; managing and maintaining SQL Server databases across production and non-production environments monitoring performance … proactively tuning queries, indexes and configurations owning backups, restores, patching and upgrades, keeping systems secure and up to date supporting high availability, disaster recovery and data retention strategies working closely with development and infrastructure teams to improve resilience and capacity planning supporting incidents and participating in a paid ...

annum depending on experience and skills. Job Summary We're seeking an experienced Oracle Database Administrator (DBA) to ensure the performance, availability, security, and integrity of mission-critical Oracle database environments for our client. This role combines proactive maintenance, incident resolution, and strategic improvements across on-premise and cloud … platforms. You'll work primarily remotely, joining a collaborative technical team. Key Responsibilities Administer, configure, and maintain Oracle databases to ensure high availability and performance. Monitor database health and performance, identifying bottlenecks and tuning systems effectively. Perform backup, recovery, patching, and upgrade operations , including disaster recovery planning. Collaborate ...

business critical 24/7/365 operating environment for a key customer. Accountability for meeting or exceeding against contracted SLAs in this high availability environment in the delivery of Critical Engineering and Facilities Management services. Own and develop a professional relationship with the client to deliver positive … development plans are in place to continually raise our game. Following on from the above, implement and manage an effective succession planning plan and high employee engagement scores. Be the responsible lead for all things High Voltage related and the associated activities. Provision of leadership and guidance, advice ...

Technical Data Centre Shift Manager – Data Centre Operations – High Voltage Experienced Package @74,000K plus Overtime Location: Slough Continental Shift Pattern 12 Hour Shift s Days and Nights Site – AI READY Data Centre Opportunity – Progressive contract and promotion and career development Salary £65,000 Plus Shift Allowance @5K Bonus … operational excellence across critical electrical and mechanical systems. You’ll guide a skilled team of engineers, ensuring safe, compliant, and efficient maintenance across a high-availability facility that powers global operations. This is a hands-on leadership role — ideal for candidates with a strong high-voltage ...