1 to 25 of 1,504 High Availability Jobs

Senior Network Engineer

Location
Portsmouth, England, United Kingdom
infrastructure across our UK data center and office environments. This role is focused on data center networking, load balancing, and core network services, ensuring high availability, performance, and security across all platforms.Job Description:Exciting Opportunity: Senior Network EngineerAre you a seasoned network professional ready to lead the design … infrastructure across our UK data center and office environments. This role is focused on data center networking, load balancing, and core network services, ensuring high availability, performance, and security across all platforms.What You’ll Do:Strategic Support & Risk AwarenessProactively identify operational risks, performance issues, and security gaps within ...

Lead Citrix Admin - London, UK

Hiring Organisation
Infosys Technologies
Location
London, United Kingdom
Salary
£ 50 K
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 ...

OT Technical Support Manager

Location
United Kingdom
assignment within the utilities sector. Your new role As the OT Technical Support Manager, you will lead the operational support, maintenance and resilience of high-availability Operational Technology systems. You will oversee service delivery and incident response while ensuring that patching, vulnerability remediation and planned maintenance activities … role will also involve workforce planning, capability development and leadership of a technical support team. Key responsibilities Lead the operational support and maintenance of high-availability OT systems. Manage incident response, fault diagnosis, system recovery and operational resilience. Oversee service delivery across the supported OT environment. Coordinate ...

OT Technical Support Manager

Hiring Organisation
Hays
Location
Perth, Perthshire, Scotland, United Kingdom
Employment Type
Contract
assignment within the utilities sector. Your new role As the OT Technical Support Manager, you will lead the operational support, maintenance and resilience of high-availability Operational Technology systems. You will oversee service delivery and incident response while ensuring that patching, vulnerability remediation and planned maintenance activities … role will also involve workforce planning, capability development and leadership of a technical support team. Key responsibilities Lead the operational support and maintenance of high-availability OT systems. Manage incident response, fault diagnosis, system recovery and operational resilience. Oversee service delivery across the supported OT environment. Coordinate ...

Java Developer

Hiring Organisation
NTT DATA
Location
London, United Kingdom
Salary
£ 80 K
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 ...

Java Developer

Hiring Organisation
NTT DATA
Location
London, UK
Employment Type
Full-time
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 ...

Platform Engineer

Location
United Kingdom
tooling — infrastructure as code (Terraform, CloudFormation, or CDK), CI/CD pipelines, API Gateway, Lambda, and Aurora PostgreSQL — and confident applying fundamentals such as high availability, fault tolerance, observability, and cost control in a live environment. Payments or fintech exposure is an advantage but not required; what matters … tooling Support change control and release management alongside Engineering and the Information Security Officer Reliability, Observability & Data Infrastructure Design and maintain systems for high availability, fault tolerance, and resilience by default Implement logging, monitoring, and alerting (for example CloudWatch) across services and infrastructure Maintain data pipelines, backup ...

Platform Engineer

Location
Milton Keynes, England, United Kingdom
tooling — infrastructure as code (Terraform, CloudFormation, or CDK), CI/CD pipelines, API Gateway, Lambda, and Aurora PostgreSQL — and confident applying fundamentals such as high availability, fault tolerance, observability, and cost control in a live environment. Payments or fintech exposure is an advantage but not required; what matters … tooling Support change control and release management alongside Engineering and the Information Security Officer Reliability, Observability & Data Infrastructure Design and maintain systems for high availability, fault tolerance, and resilience by default Implement logging, monitoring, and alerting (for example CloudWatch) across services and infrastructure Maintain data pipelines, backup ...

Technical Support Manager

Location
Perth, Scotland, United Kingdom
supporting a major utilities client in hiring an OT Technical Support Manager to lead the operational support, maintenance and resilience of high-availability operational technology (OT) systems, with a focus on incident response, service delivery, patching and vulnerability remediation. This is a hands‐on operational leadership role covering … platforms, including DMS, SCADA, data historians, telemetry and communications systems. The successful candidate will own incident management, fault diagnosis and recovery within a highavailability environment, lead OT patching and vulnerability remediation activity, and manage resourcing, capability and development across a technical team. This role suits an experienced ...

Infrastructure Engineer (Initial 12 Month FTC)

Location
Greater London, England, United Kingdom
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 ...

Lead DevOps Engineer

Hiring Organisation
Broadridge
Location
London, United Kingdom
Salary
£ 100 K
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 ...

Lead DevOps Engineer

Location
Greater London, England, United Kingdom
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. + ...

Database Engineer (MongoDB, Postgres)

Hiring Organisation
CGG
Location
Oxford, Oxfordshire, United Kingdom
Salary
£ 70 K
transition and infrastructure challenges. Job DetailsViridien is seeking a Database Engineer to design, maintain, and optimise database platforms that support global production systems and high-performance computing workloads.This role focuses on managing MongoDB and relational database environments, ensuring they remain secure, scalable, and highly available. You will work closely … underpin Viridien's global software and HPC environments.The team works closely with software developers, infrastructure engineers, and operations teams to deliver reliable, scalable, and high-performing database services that support data-intensive applications across the business.Key Responsibilities-Database AdministrationManage, maintain, and support MongoDB and relational database environments.Install, configure ...

Database Engineer (MongoDB, Postgres)

Hiring Organisation
CGG
Location
Asthall Leigh, Oxfordshire, UK
Employment Type
Full-time
transition and infrastructure challenges. Job DetailsViridien is seeking a Database Engineer to design, maintain, and optimise database platforms that support global production systems and high-performance computing workloads. This role focuses on managing MongoDB and relational database environments, ensuring they remain secure, scalable, and highly available. You will work … Viridien's global software and HPC environments. The team works closely with software developers, infrastructure engineers, and operations teams to deliver reliable, scalable, and high-performing database services that support data-intensive applications across the business. Key Responsibilities-Database AdministrationManage, maintain, and support MongoDB and relational database environments. Install ...

Database Platform Manager

Location
Manchester, England, United Kingdom
estate, including sequencing, risk and making the case to the business Shape the direction of the platform and the team around two priorities, high resiliency and cost effectiveness, making the trade‐offs explicit and building stakeholder consensus behind them Target architecture on GCP: where self‐managed instances remain right … where managed and cloud‐native services earn their place Standards for database design, performance, high availability and disaster recovery, patching, and backup and recovery Senior escalation point for complex L3 work: performance and query tuning, replication and failover, major incident response and post‐incident review Automation, infrastructure ...

Global Banking & Markets - Software Engineer - Vice President - London

Hiring Organisation
Goldman Sachs
Location
London, United Kingdom
Salary
£ 100 K
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 ...

IAM Secrets Management Engineering - SRE Platform Engineer - VP - London London · United Kingdo[...]

Location
Greater London, England, United Kingdom
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, highavailability, 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 ...

OT Technical Support Manager

Location
Perth, Scotland, United Kingdom
operational support, maintenance, and resilience of critical Operational Technology (OT) systems within a Utilities environment. This is a leadership role focused on ensuring the availability, performance, security, and continuous improvement of high-availability OT platforms. The successful candidate will be responsible for incident management, fault recovery, service … maintenance of critical OT platforms and services. Manage incident response activities, fault diagnosis, service restoration, and root cause analysis. Ensure operational resilience across high-availability environments, supporting business continuity and recovery activities. Oversee OT patching, maintenance schedules, and vulnerability remediation programmes. Drive service delivery excellence and continuous improvement ...

CICS Mainframe Systems Programmer

Hiring Organisation
The Nippon Telegraph And Telephone Corporation (NTT)
Location
United Kingdom
Salary
£ 70 K
place where you can grow, belong and thrive.Your day at NTT DATAhe 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, maintain … 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 ...

CICS Mainframe Systems Programmer

Hiring Organisation
NTT DATA
Location
London, United Kingdom
Salary
£ 80 K
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 ...

CICS Mainframe Systems Programmer

Location
Greater London, England, United Kingdom
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 Infrastructure Engineer

Hiring Organisation
Avon Rubber
Location
Melksham, Wiltshire, United Kingdom
Salary
£ 60 K
responsible for the operation and maintenance of systems across all sites and hosting providers. The role manages on-premises and private cloud infrastructure, ensuring high availability, performance, and security of core IT systems while supporting strategic transformation initiatives This position works within established standards and architectures, supporting network … posture through updates, hardening, and vulnerability remediationProvide 3rd line support for infrastructure and network issuesTroubleshoot performance, connectivity, and system-level issues across infrastructure layersSupport high availability and resilience through appropriate design and configurationsMaintain and support backup, recovery, and disaster recovery solutionsMaintain standard builds, configurations, and deployment processesMonitor infrastructure ...

Network and Voice Engineer

Hiring Organisation
Source Group International
Location
London, United Kingdom
Salary
£ 80 K
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

Hiring Organisation
Source Group International
Location
London, UK
Employment Type
Full-time
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 ...

z/OS Mainframe Systems Programmer

Hiring Organisation
The Nippon Telegraph And Telephone Corporation (NTT)
Location
United Kingdom
Salary
£ 70 K
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 ...