1 to 25 of 106 Contract High Availability Jobs

Server Architect - Cloud Resilience & High Availability (AWS Focus) London/Hybrid - 3 to 4 days per week onsite £620 per day inside ir35 6 months initial contract - Active SC or DV clearance We are seeking an experienced SQL Server Architect to support a major cloud transformation programme, migrating … premises infrastructure to AWS. The initial engagement will involve an eight-week Proof of Value (PoV), focused on designing, testing and validating SQL Server high availability (HA) and disaster recovery (DR) solutions within AWS. This will include assessing different resilience patterns, failover capabilities, performance and cloud-native services. ...

across the UK and internationally. The successful candidate will play a key role in maintaining, optimising and supporting critical database and infrastructure environments, ensuring high availability and performance across both internal systems and customer platforms. The Role As a Database Infrastructure Engineer, you will be responsible … database environments, alongside wider infrastructure and virtualisation technologies. Working within a collaborative technical team, you will support systems that operate 24/7, implementing high availability, replication and backup strategies whilst contributing to ongoing infrastructure improvements and customer projects. Key responsibilities include: Administering and performance tuning Microsoft ...

days per week on site Job Summary The SQL DBA Engineer is responsible for designing, managing, and optimizing SQL database environments to ensure performance, availability, scalability, and security across business-critical systems. The role combines database architecture, administration, performance tuning, governance, backup and recovery planning, and support for application … database environments for performance, reliability, and scalability Lead database installation, configuration, patching, upgrades, and migration activities Define and implement backup, recovery, disaster recovery, and high-availability strategies Troubleshoot database issues, performance bottlenecks, and system failures Support capacity planning, database health checks, and performance tuning initiatives Ensure database security ...

that underpin large-scale, mission-critical enterprise applications hosted within AWS cloud environments. Initially, you will lead an intensive proof-of-value phase, evaluating high availability and disaster recovery (HA/DR) patterns for SQL Server on AWS. Following successful completion, the role will transition into a longer … complex enterprise environment. Key Responsibilities Design and own SQL Server architecture supporting business-critical enterprise platforms hosted on AWS. Develop and validate High Availability and Disaster Recovery (HA/DR) strategies. Design and implement SQL Server Always On Availability Groups, Failover Cluster Instances (FCI), and other resilience ...

Server environments hosted on AWS, including EC2 and/or RDS. Evaluate database sizing, storage, infrastructure performance and cost efficiency. Maintain backup, recovery, high availability and disaster recovery processes. Support SQL Server Always On Availability Groups and relevant AWS resilience configurations. Lead technical investigations during database performance … environments, ideally EC2 and/or RDS. Understanding of AWS infrastructure, storage and networking considerations affecting database performance. Experience with database backup and recovery, high availability and disaster recovery. Familiarity with Always On Availability Groups and/or AWS Multi-AZ configurations. Experience planning for database scalability ...

WebLogic, Oracle HTTP Server (OHS), Forms, Reports, Concurrent Managers, and Workflow. Oversee context file management, AutoConfig maintenance, and system integration points. 2. Database Administration & High Availability Configure, maintain, and tune high-availability Oracle Databases supporting EBS (including Oracle RAC). Execute database cloning, upgrades, patching ...

WebLogic, Oracle HTTP Server (OHS), Forms, Reports, Concurrent Managers, and Workflow. Oversee context file management, AutoConfig maintenance, and system integration points. 2. Database Administration & High Availability Configure, maintain, and tune high-availability Oracle Databases supporting EBS (including Oracle RAC). Execute database cloning, upgrades, patching ...

customers. This role is ideal for a skilled Oracle professional with expertise across Oracle Database Administration, SQL and PL/SQL development, performance tuning, high availability, backup and recovery, and the infrastructure supporting Oracle platforms. You will play a key role in maintaining, optimising and evolving complex Oracle … Supporting Oracle RAC, ASM and Data Guard environments Linux server administration and support Oracle Cloud Infrastructure (OCI) administration Infrastructure automation and scripting Platform monitoring, availability and capacity management Incident investigation, troubleshooting and root cause analysis Supporting operational and project-based delivery activities Contributing to technical standards, documentation and best ...

virtualisation, backup, networking, monitoring, and security. The successful candidate will act as a senior technical escalation point, lead technical discovery and solution delivery, maintain high-quality documentation, and drive service reliability and continuous improvement. Due to the nature of the customer environments supported, candidates must be eligible to obtain … monitoring, and cloud-related incidents and service requests. Support, administer, troubleshoot, and improve Microsoft Exchange Server, hybrid Exchange, Exchange Online, migrations, mail flow, security, availability, and disaster recovery. Support and optimise Citrix environments, including Virtual Apps and Desktops, StoreFront, Delivery Controllers, Citrix Gateway or ADC, profile management, application delivery ...

error budgets across critical services. Apply resilient design patterns, including multi-region failover, active-active architectures, circuit breakers and bulkheads. Ensure platforms support high availability, fault tolerance and disaster recovery in line with financial market uptime requirements. Investigate platform failures, performance bottlenecks and systemic issues across complex, multi … solving mindset and a focus on reliability and continuous improvement. Preferred Experience Financial services or other data-intensive, regulated industries. Multi-region AWS architecture, high availability and mission-critical applications. Chaos engineering practices and resilience testing. AIOps and intelligent automation frameworks. ...

this role, you will act as the technical authority across compute, storage, networking, automation, and virtualization platforms. You will be responsible for translating high-level business objectives into resilient, secure, and scalable technical solutions, ensuring all architectural blueprints comply with rigorous government security frameworks and long-term IT roadmaps. … design governance, operational delivery, and team mentorship. Key Responsibilities Architectural Governance & Technical Authority: Lead the end-to-end authoring, validation, and review of robust High-Level Designs (HLDs) and Low-Level Designs (LLDs) for high-stakes, mission-critical services. Requirements Translation: Bridge the gap between non-technical stakeholders ...

development teams to review T-SQL, stored procedures and database design decisions. Provide practical guidance to developers on writing efficient T-SQL and implementing high-performing database solutions. Performance Tuning and Optimisation Proactively monitor database workloads, identify performance bottlenecks and resolve complex database issues. Analyse execution plans and optimise … health and performance of the SQL Server estate. Manage day-to-day operational activities, monitoring, patching and database lifecycle management. Maintain the reliability and availability of business-critical production systems operating 24/7/365. Azure and Hybrid Cloud Infrastructure Administer and optimise SQL Server workloads across Azure ...

Oracle Apps DBA to manage, maintain, and optimise mission-critical Oracle E-Business Suite (EBS R12) environments and underlying databases. In this hands-on, high-impact technical role, you will take ownership of cross-layer troubleshooting spanning application, database, operating systems, and infrastructure. You will play a key part … maintaining system performance, security, and high availability, while actively contributing to major cloud migration initiatives (OCI/Azure). Key responsibilities EBS & Database Lifecycle: Maintain, update, copy, and refresh core Oracle systems across test, development, and live 24/7 production environments. Core Apps Administration: Manage key system ...

Oracle Apps DBA to manage, maintain, and optimise mission-critical Oracle E-Business Suite (EBS R12) environments and underlying databases. In this hands-on, high-impact technical role, you will take ownership of cross-layer troubleshooting spanning application, database, operating systems, and infrastructure. You will play a key part … maintaining system performance, security, and high availability, while actively contributing to major cloud migration initiatives (OCI/Azure). Key responsibilities EBS & Database Lifecycle: Maintain, update, copy, and refresh core Oracle systems across test, development, and live 24/7 production environments. Core Apps Administration: Manage key system ...

client is a global defence and technology company. Senior Network Engineer Location: Huntingdon, Cambridgeshire Security Clearance Level - High DV Required UNLEASH YOUR POTENTIAL We deliver innovative technology and engineering solutions through the expertise of our diverse and talented people. We work with our customers to solve some … problems, develop robust network solutions and provide engineering assurance throughout the lifecycle of network services. The role offers significant technical variety, covering network architecture, high-availability infrastructure, security, technical refresh, service improvement, troubleshooting and the introduction of new technologies. You will work closely with customers, architects, engineers, service ...

development teams throughout technical projects from delivery to successful completion. Ability to mentor and coach. Strong technical documentation skills. Proven record of accomplishment in high availability multi browser compatible development. Experience of working with high availability, multiuser and service-based systems. Additional Information Acting ...

contributing to wider data platform modernisation initiatives. Key responsibilities include: Managing SQL Server databases across on-premise, Azure SQL and managed database services. Ensuring high availability, performance optimisation, backup, recovery and disaster recovery. Supporting database upgrades, migrations and cloud modernisation projects. Investigating complex database issues and implementing sustainable … someone with: Strong SQL Server DBA experience supporting business-critical production environments. Excellent SQL skills, including performance tuning, troubleshooting and optimisation. Solid understanding of high availability, replication, backup and disaster recovery. Experience with Azure SQL or cloud-managed database services. Scripting and automation skills, ideally PowerShell. Exposure ...

administration, maintenance and improvement of Oracle databases and the Linux infrastructure they operate on. Your responsibilities will include: Monitoring and maintaining Oracle databases, ensuring availability, performance, capacity and security across production and non-production environments. Managing database backups, restores, recovery procedures and disaster recovery processes, including regular testing. Investigating … Enterprise Manager and supporting Oracle WebLogic environments. Working with the development team to support applications built using Oracle APEX and PL/SQL. Supporting high-availability and disaster recovery arrangements across the organisation's infrastructure. Using Linux shell scripting and automation to improve routine administration and operational processes. ...

optimise Flow Managers, Flow Collectors and UDP Directors. Migrate existing configurations and data sources, ensuring platform functionality and resilience. Evaluate load-balancing and high-availability solutions, including HAProxy and alternative technologies. Network Visibility & Telemetry Review existing global NetFlow and syslog coverage, identifying gaps and opportunities for improvement. Develop … Terraform or REST APIs. Automation of NetFlow and syslog configuration and deployment. Experience with Git and CI/CD workflows. HAProxy, load balancing and high-availability architectures. UDP traffic distribution and Flow Collector scalability. Hybrid cloud networking and east-west traffic monitoring. Project Deliverables You will be expected ...

optimise Flow Managers, Flow Collectors and UDP Directors. Migrate existing configurations and data sources, ensuring platform functionality and resilience. Evaluate load-balancing and high-availability solutions, including HAProxy and alternative technologies. Network Visibility & Telemetry Review existing global NetFlow and syslog coverage, identifying gaps and opportunities for improvement. Develop … Terraform or REST APIs. Automation of NetFlow and syslog configuration and deployment. Experience with Git and CI/CD workflows. HAProxy, load balancing and high-availability architectures. UDP traffic distribution and Flow Collector scalability. Hybrid cloud networking and east-west traffic monitoring. Project Deliverables You will be expected ...

infrastructure. Supporting Cisco switching environments. Configuring and troubleshooting routing protocols. Managing network security, including Palo Alto firewalls, VPNs, NAT and security policies. Supporting resilient, high-availability network infrastructure across multiple locations. Troubleshooting complex network issues. Working with VLANs, trunking, STP, LACP, VRFs and network redundancy technologies. Monitoring network … performance and availability using tools such as SolarWinds. Supporting network upgrades, infrastructure improvements and technical projects. Maintaining network documentation, diagrams and operational procedures. Collaborating with internal teams and external suppliers to deliver effective networking solutions. What We're Looking For We're interested in speaking with Network Engineers ...

Application, Infrastructure or Cloud Architecture. Ability to assess existing resilience capabilities, identify gaps and define improvement strategies and target architecture roadmaps. Strong understanding of high availability, disaster recovery, cyber recovery, fault tolerance, business continuity and technology recoverability. Experience working across cloud, infrastructure, applications, data, integration and security teams. … resilience. Identify technology risks, single points of failure, Legacy dependencies and concentration risks, recommending appropriate mitigation strategies. Define architecture principles and design standards covering high availability, disaster recovery, cyber recovery, data integrity, service continuity and recoverability. Provide architecture guidance on resilience patterns, automation, cloud platforms, monitoring and modern ...

looking for an experienced Network Engineering Specialist (4G ESN/Mobile RAN Performance SME) to shape mobile RAN strategy and optimize critical, high-availability networks. Operating in the 4G Emergency Services Network (ESN) domain, you will lead end-to-end performance analysis, troubleshoot complex protocol traces, and drive … Accuver, TEMS/Nemo, Actix, Wireshark, and protocol analysis (SIP, PTT, SRTP, DTLS). Telecom Background: Proven track record as a performance SME in high-availability mobile networks working with 3rd-party suppliers. Randstad Technologies is acting as an Employment Business in relation to this vacancy. ...

About the Role As an S/4 Senior Basis Consultant, you will design, implement, and maintain complex SAP S/4HANA systems, ensuring high performance, availability, and alignment with enterprise architecture standards. You will lead technical teams across system administration, database management, cloud migration, and integration strategy … installation, configuration, and maintenance of SAP S/4HANA, SAP HANA databases, and associated SAP cloud and on-premise components. • Manage system performance tuning, high availability/disaster recovery setup, and lifecycle upgrades/system copies across complex landscape topologies. • Collaborate with cloud providers (AWS, Azure, GCP), functional ...

enterprise-scale platforms? We're looking for a Linux Infrastructure & Platform Architect to drive the design, automation, and evolution of critical infrastructure environments supporting high-performance computing, cloud services, and modern containerised platforms. In this hands-on technical leadership role, you'll combine architecture, engineering, and automation expertise … site in Salisbury OR Portsmouth. What you'll be doing: Leading the design, administration, optimisation, and support of large-scale Linux environments, ensuring high availability, performance, security, and resilience. Architecting and supporting High Performance Computing (HPC) platforms, including compute, storage, networking, workload scheduling, and user environments. Designing ...