1 to 25 of 191 High Availability Jobs

SC Cleared SQL Database Administrator

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
performance optimization, and security of Microsoft SQL Server environments. The role requires experience supporting production databases, troubleshooting complex issues, implementing database changes, and ensuring high availability and data integrity.The ideal candidate combines strong technical expertise with a proactive approach to problem-solving and effective collaboration with application, infrastructure … support Microsoft SQL Server environments. Perform database installations, configuration, upgrades, patching, and migrations. Manage databases, instances, security settings, users, roles, and permissions. Ensure database availability, reliability, and operational stability. Performance & Optimization Monitor and optimize database performance. Investigate and resolve performance bottlenecks, locking issues, and query-related problems. Analyze execution ...

SQL Database Administrator

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
performance optimization, and security of Microsoft SQL Server environments. The role requires experience supporting production databases, troubleshooting complex issues, implementing database changes, and ensuring high availability and data integrity.The ideal candidate combines strong technical expertise with a proactive approach to problem-solving and effective collaboration with application, infrastructure … support Microsoft SQL Server environments. Perform database installations, configuration, upgrades, patching, and migrations. Manage databases, instances, security settings, users, roles, and permissions. Ensure database availability, reliability, and operational stability. Performance & Optimization Monitor and optimize database performance. Investigate and resolve performance bottlenecks, locking issues, and query-related problems. Analyze execution ...

Infrastructure Engineer-Hyper-V

Hiring Organisation
NEEV LIMITED
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £400 to £450 per day 400 - 450 GBP/day InsideIR35
Required Technical Skills Site Reliability Engineering Strong understanding of Site Reliability Engineering principles and operational excellence. Experience with infrastructure reliability, service availability, resiliency, and performance optimization. Storage Space Direct a nd failover clustering technical expertise . (Storage Spaces Direct enables you to build highly available, software-defined storage … external SAN, S2D uses the servers' local storage to create a resilient shared storage pool) Experience managing production-critical infrastructure environments with high availability requirements. Experience with incident management, problem management, RCA, and continuous operational improvement. Knowledge of monitoring, observability, alerting, and performance management. Microsoft Hyper-V (Core ...

Network & Security Consultant

Hiring Organisation
Solutions Through Knowledge
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £450 per day
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 ...

Service Delivery Manager

Hiring Organisation
Hays Technology
Location
Eastleigh, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£45000 - £47000/annum £45,000 - £47,000
cloud, and hybrid environments while translating business needs into clear technical roadmaps and delivery plans. The role also carries accountability for critical systems, ensuring high availability, performance, and recoverability in a demanding operational setting. In addition, you will lead and develop a team of senior engineers, providing direction … ITIL. A proactive approach to continuous improvement, resilience planning, and service delivery will be key, along with the ability to operate effectively in a high-availability, high-pressure environment. What you'll get in return In return, you will join a forward-thinking organisation where technology underpins ...

Senior Azure SQL Server Database Administrator

Hiring Organisation
PFH Technology Group
Location
England, United Kingdom
excel in SQL Server administration, cloud integration, database performance optimization, and geospatial data management. The successful candidate will work on SQL Server initiatives including high availability, performance tuning, monitoring, deployment configurations, and support of ArcGIS Enterprise geodatabases deployed on Azure as SQL Server MI. Key Responsibilities SQL Server … Administration • Lead installation, configuration, and maintenance of SQL Server instances (2016/2019/2022) in on-premises and Azure environments. • Design and implement High Availability solutions including Always On Availability Groups, Failover Clustering, and Azure Geo-Replication. • Perform database performance tuning using DMVs, Query Store, Extended ...

Director of Data, Analytics & Insight

Hiring Organisation
We Are Fr Group
Location
Greater Manchester, North West, United Kingdom
Employment Type
Permanent
reliability and performance of data platforms, pipelines and models. Embedding strong governance, documentation, modelling standards and security best practice. Reducing technical debt and ensuring high availability and stability of data systems. Supporting a wide range of use cases from automated reporting through to machine learning-driven products. Translating … understanding. Building business cases, scenarios and forecasts to support commercial planning. Strengthening the accuracy and transparency of channel performance, attribution and investment evaluation. Maintaining high standards of data quality, lineage, privacy and compliance. Creating progression pathways, upskilling programmes and a culture of curiosity, collaboration and accountability. To succeed ...

Database Administrator

Hiring Organisation
Uniting Ambition
Location
Kettering, Northamptonshire, United Kingdom
Employment Type
Permanent
Salary
£50000 - £65000/annum
Responsibilities Administer and support PostgreSQL and Oracle databases, with a primary focus on PostgreSQL Monitor, troubleshoot and optimise database performance Design and maintain high availability, replication, backup and disaster recovery solutions Perform database upgrades, patching and lifecycle management activities Support database migration and platform modernisation initiatives Maintain database … ideally have: Strong PostgreSQL administration experience Working knowledge of Oracle database support and administration Experience with performance tuning, optimisation and troubleshooting Knowledge of replication, high availability and disaster recovery solutions Strong understanding of backup and recovery processes Linux administration experience Experience supporting production database environments A proactive approach ...

Senior Kubernetes / Cloud Platform Engineer Telecom Modernization

Hiring Organisation
Ashley Hughes-Jefferson Consulting LLC
Location
Philadelphia, Pennsylvania, United States
Employment Type
Any
Salary
USD Annual
Code Supporting cloud environments such as AWS, Azure, GCP, or OpenStack Implementing monitoring, logging, dashboards, and alerting Troubleshooting production application and infrastructure issues Supporting high-availability and latency-sensitive architectures Assisting with migration planning, validation, testing, and production implementation Creating technical and operational documentation Required Experience Qualified candidates …/CD pipeline development and automation Cloud infrastructure Infrastructure-as-Code Production application/platform support Monitoring and observability Scripting or programming, preferably Python High-availability production environments Approximately 10+ years of relevant technology experience and a bachelor's degree are expected. Preferred Experience Candidates may be especially ...

Oracle Database Administrator / Oracle DBA

Hiring Organisation
Damia Group Ltd
Location
Nationwide, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600/day Outside IR35
within a 24 by 7 live service environment. This role focuses on operational stability, incident resolution, performance optimisation and secure database management across a high availability Oracle estate. The Role You will provide 2nd and 3rd line database support for Oracle 11g databases supporting critical production services. Working … closely with application support, infrastructure and service management teams, you will ensure availability, resilience and performance in line with agreed service levels. The position operates within a formal ITIL aligned support model and includes participation in a 24 by 7 support rota, including out of hours and major incident ...

Infrastructure Platform Architect

Hiring Organisation
Hackajob Ltd
Location
Farnborough, Hampshire, South East, United Kingdom
Employment Type
Permanent
private cloud) supporting mission-critical workloads Architect virtualisation solutions, containerisation strategies and orchestration platforms Design disaster recovery, business continuity and resilience architectures meeting MOD availability requirements Guide infrastructure modernisation programmes, legacy system migrations and technology refresh initiatives Ensure infrastructure designs comply with MOD security requirements, Classification Guides and defence … implementing enterprise-scale infrastructure platforms Strong background in cloud architecture (AWS, Azure, or equivalent) and hybrid infrastructure models Demonstrated experience with virtualisation, storage and high-availability infrastructure design Track record of leading infrastructure modernisation programmes and technology transformation Experience in defence, aerospace or government IT environments Technical Knowledge ...

Senior Software Engineer - AWS / Microservices

Hiring Organisation
Morgan McKinley
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £600 per day
Senior Software Engineer - AWS/Microservices Location: Manchester (Hybrid, 1 day per week in office) Contract (Initial 6 Months, high extension potential) | £500-600pd inside IR35 We are seeking an experienced Senior Software Engineer to join a fast-paced, high-growth technology division focused on third-party … ticketing, integrations and high-availability booking systems. This contract balances greenfield pipeline engineering with the modernisation of legacy cloud infrastructure. You will work closely with cross-functional teams to lead major cloud migration efforts while designing robust, highly scalable backend systems. Key Responsibilities & Deliverables Over the initial ...

Infrastructure Architect

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600/day 600 p/d
standardisation. Support infrastructure transformation planning and migration activities. Ensure business continuity and operational stability throughout transition and implementation phases. Solution Design & Assurance Produce high-level and detailed infrastructure designs. Develop infrastructure standards, architectural patterns, and reference architectures. Review and assure solution designs delivered by internal teams, suppliers, and technical … partners. Ensure designs meet security, availability, resilience, performance, and operational support requirements. Provide architecture governance and technical assurance across the programme. Platform & Service Alignment Define architectural requirements for hosting, connectivity, workplace technology, and platform services. Ensure infrastructure services support future operational and service management requirements. Align infrastructure architecture with ...

SQL DBA

Hiring Organisation
Specialist Computer Centres PLC
Location
Northern Ireland, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
join a critical programme within a secure environment. This is an excellent opportunity for a DV Cleared SQL DBA to work on high-impact systems, supporting database performance, security, and reliability across complex enterprise platforms. Your responsibilities as the DV Cleared SQL DBA: Administer, monitor, and maintain SQL Server … environments within highly secure, DV-cleared settings. Optimise database performance, including query tuning, indexing, and resource management. Ensure high availability and disaster recovery strategies (eg, Always On, clustering, backups). Support database security, access controls, and compliance with strict governance standards. Troubleshoot and resolve database issues, ensuring minimal ...

Cassandra Database Engineer

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£650 - £706 per day
looking for a hands-on Cassandra Database Engineer to join a major Financial Crime technology programme. This is a key technical role within a high-profile transformation programme, where you'll help design and build the Cassandra/NoSQL data platform supporting the migration of data from an existing … join a major Financial Crime technology programme supporting a significant NICE Actimize IFM upgrade . This is a key technical role within a high-profile transformation programme, where you'll help design and build the Cassandra/NoSQL data platform supporting the migration of data from an existing Oracle ...

IT Network Operations Support Engineer

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£750/day Up to £750pd Inside IR35
Support Engineer to join their Technology Services team. This role will focus on maintaining and supporting critical enterprise and data centre network infrastructure, ensuring high availability, operational stability, and rapid incident resolution across a complex technology estate. You will support a large-scale infrastructure consolidation programme and work … experience using Python, Ansible, APIs, or Infrastructure Automation tooling. Nice to Have Financial Services or other highly regulated industry experience. Experience supporting low-latency, high-availability production environments. Experience working within Cisco-based enterprise networks. Experience supporting network transformation, migration, or modernisation initiatives. The successful candidate will ...

Senior Infrastructure Engineer (Citrix) - DV Cleared

Hiring Organisation
Reed
Location
Milton Keynes, Buckinghamshire, England, United Kingdom
Employment Type
Temporary
Salary
£550 - £580 per day, Inc benefits
Citrix technologies, supporting both day-to-day operations and project-based deliverables. Working within a team of skilled infrastructure professionals, you will ensure the availability, performance, and security of critical virtual desktop and application services. This is an initial 6-month contract based on site in Milton Keynes. … Umbrella company. Key Responsibilities Design, build, upgrade, and support Citrix Virtual Apps and Desktops environments Provide advanced troubleshooting and performance tuning across high-availability platforms Maintain platform stability, resilience, and security Support BAU operations and infrastructure projects Integrate Citrix solutions with Active Directory and secure access technologies Identify ...

Ticketing Systems Lead

Hiring Organisation
FBI &TMT
Location
South East London, London, United Kingdom
Employment Type
Permanent
Salary
£80,000
gates, kiosks, and other passenger-facing devices that are critical to daily service delivery. You will lead a multi-disciplinary team responsible for ensuring high availability, rapid incident response, and seamless customer experience across all front office technology. Key Responsibilities Lead the end-to-end support and operation … client on: System performance Incident trends Service improvements Operational risks and mitigation Ensure systems meet contractual SLAs/KPIs , particularly those linked to customer availability and revenue protection . Identify and deliver continuous improvement initiatives , including system optimisation, reliability improvements, and operational efficiencies. Provide leadership and direction ...

Lead Network Engineer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
environments. - Maintain secure, resilient and scalable network services aligned to business requirements, client expectations and regulatory obligations. - Support disaster recovery testing, failover validation and availability improvement for critical network services. - Monitor network performance, identify risks, resolve complex incidents and drive continual service improvement. - Shape and maintain the technical roadmap … senior or lead network engineer within a complex enterprise environment. - Deep knowledge of enterprise networking, including Layer 2/3, switching, routing, VLANs, segmentation, high availability, wireless and troubleshooting. - Strong experience with Cisco enterprise technologies, including Catalyst, Nexus, Cisco ISE, RADIUS, TACACS+, 802.1X and access control policies. - Strong ...

SAP Technical Architect

Hiring Organisation
Focus on SAP
Location
City of London, London, United Kingdom
architecture reviews, impact assessments, and technical design workshops. Platform, Infrastructure & Performance Design and optimise SAP landscapes including: Development, Test, Production, and Disaster Recovery environments High Availability (HA) and Disaster Recovery (DR) solutions SAP HANA architecture and performance optimisation Provide guidance on system sizing, scalability, security, and operational resilience. … expertise in: SAP S/4HANA SAP ECC SAP HANA SAP BTP SAP Fiori/UI5 SAP Basis Deep knowledge of: SAP landscape architecture High Availability and Disaster Recovery Performance tuning and optimisation Security and governance frameworks Strong integration expertise across: SAP BTP Integration Suite SAP PI/ ...

Senior Infrastructure Engineer Citrix SME

Hiring Organisation
Solos Consultants Ltd
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Contract
Responsibilities will include: Supporting and maintaining enterprise Citrix Virtual Apps & Desktops environments Designing, building, upgrading and optimising Citrix infrastructure Performance tuning and troubleshooting within high-availability environments Supporting BAU operations alongside infrastructure project delivery Integrating Citrix with Active Directory and secure access solutions Driving automation and continuous improvement … Apps & Desktops Enterprise Citrix administration, deployment and support Infrastructure design, upgrades and migrations Performance optimisation and complex troubleshooting Active Directory integration Secure access technologies High-availability infrastructure Infrastructure automation Working within ITIL or service-managed environments Experience working within secure or Government environments would be highly advantageous. Certifications ...

Database Engineer - MySQL

Hiring Organisation
Akkodis
Location
Nelson, Lancashire, United Kingdom
Employment Type
Permanent
Salary
£40000 - £45000/annum
data. Our client is a tech-driven organisation operating at the heart of the UK digital ecosystem, supporting thousands of businesses through a complex, high-availability platform. Behind the scenes, robust data infrastructure is critical - and that's where you come in. We're looking for an experienced … improvement, this could be a great fit. What you'll be doing Install, configure, and maintain SQL Server (and some MySQL) environments Monitor performance, availability, and capacity Troubleshoot and resolve complex database incidents Remediate legacy SQL environments Maintain backup and recovery strategies Provide 2nd and 3rd line support Collaborate ...

Database Engineer - MySQL

Hiring Organisation
Akkodis
Location
Prudhoe, Northumberland, United Kingdom
Employment Type
Permanent
Salary
£40000 - £45000/annum
data. Our client is a tech-driven organisation operating at the heart of the UK digital ecosystem, supporting thousands of businesses through a complex, high-availability platform. Behind the scenes, robust data infrastructure is critical - and that's where you come in. We're looking for an experienced … improvement, this could be a great fit. What you'll be doing Install, configure, and maintain SQL Server (and some MySQL) environments Monitor performance, availability, and capacity Troubleshoot and resolve complex database incidents Remediate legacy SQL environments Maintain backup and recovery strategies Provide 2nd and 3rd line support Collaborate ...

Database Engineer - MySQL

Hiring Organisation
Akkodis
Location
Hessle, East Riding of Yorkshire, United Kingdom
Employment Type
Permanent
Salary
£40000 - £45000/annum
data. Our client is a tech-driven organisation operating at the heart of the UK digital ecosystem, supporting thousands of businesses through a complex, high-availability platform. Behind the scenes, robust data infrastructure is critical - and that's where you come in. We're looking for an experienced … improvement, this could be a great fit. What you'll be doing Install, configure, and maintain SQL Server (and some MySQL) environments Monitor performance, availability, and capacity Troubleshoot and resolve complex database incidents Remediate legacy SQL environments Maintain backup and recovery strategies Provide 2nd and 3rd line support Collaborate ...

Solution Architect / Design Engineer

Hiring Organisation
Vallum Associates
Location
South Yorkshire, Sheffield, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600/day
technical authority across multiple workstreams, ensuring architectural consistency, integration and alignment with the enterprise target state. In this role, you will: Produce High Level Designs (HLDs) and Low Level Designs (LLDs) for identity capabilities. Define end-to-end solution architecture across business, application, data and infrastructure domains. Translate business … Policy Enforcement Point (PEP) architectures using Policy-as-Code. Define secrets management, certificate lifecycle and PKI integration patterns. Design resilience, disaster recovery and high availability architectures. Ensure solutions meet non-functional requirements for security, scalability, resilience and performance. Produce architecture decision records (ADRs) and design documentation. Support governance ...