1 to 25 of 28 Contract High Availability Jobs in London

Senior Network Engineer - Broadcast IP Infrastructure

Hiring Organisation
Red King Resourcing
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600/day
Duration: 6 months initially Your New Role We are seeking a Senior Network Engineer with strong experience in broadcast IP environments to join a high-performance infrastructure team. This role will focus on the design, implementation and ongoing support of highly available network infrastructure supporting live broadcast and production … Arista hardware is essential. Your Responsibilities Network Design and Implementation * Design, deploy, configure and maintain scalable and resilient LAN, WAN and WiFi infrastructure. * Ensure high availability and performance across all network services supporting critical operations. Broadcast and AV Integration * Support IP based and cloud-based broadcast workflows. * Ensure ...

Mainframe DB2 System Admin

Hiring Organisation
DCV Technologies Limited
Location
Central London, London, United Kingdom
Employment Type
Contract
Admin Location: Edinburgh/Ireland/London (Hybrid-2/3 days from office) 6 months contract position Role description: The ideal candidate ensures high availability and optimal performance of the DB2subsystem. This role requires deep technical knowledge of SMP/E, z/OS internals, and third … monitoring. Security : Implement and manage DB2 security using RACF, ACF2, or Top Secret. Key skills/knowledge/experience: The ideal candidate ensures high availability and optimal performance of the DB2 subsystem. This role requires deep technical knowledge of SMP/E, z/OS internals, and third ...

Senior SQL DBA

Hiring Organisation
Infoplus Technologies UK Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £350 to £370 per day
functions can fulfil the collective mission of promoting monetary and financial stability for the good of the UK. We achieve this by delivering resilient, high performing, secure technology solutions and information services across the organisation. Technology operates on a clear and efficient model: Analyse Deliver Service Secure, ensuring transparency … Server databases across the Banks environment. Configure, optimise, and support SQL Server instances and associated processes. Monitor overall system health, performance, and capacity. Ensure high levels of availability, resilience, performance, and security. Troubleshoot and resolve incidents in real time. Provide recommendations for improvements and corrective actions. Operational Excellence ...

Senior Security Administrator - Palo Alto

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£200 - £400 per day
controls, ensuring secure and resilient network operations across enterprise environments. This role is hands-on, need to be comfortable working in complex, regulated, or high-availability environments, partnering with infrastructure, networking, and SOC teams to deliver robust security outcomes. Key Responsibilities: Palo Alto Administer, configure, and support Palo ...

SQL Server DBA

Hiring Organisation
Syntax Consultancy Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£350 - £400/day Inside IR35
Optimization (PTO) Must have in-depth experienced, Manage SQL Server databases, Configure and maintain database servers and processes, Backups, restores and recovery models. High Availability (HA) and Disaster Recovery (DR) options for SQL Server and experience with Windows server, including Active Directory Monitor system’s health and performance … including ensure high levels of performance, availability, sustainability and security Analyze, solve, and correct issues in real time and Refine and automate regular processes, track issues, and document changes Assist developers with query tuning and schema refinement Provide 24×7 support for critical production systems Perform scheduled maintenance ...

Cloud Delivery Lead

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£70 - £79/hour Inside IR35 Remote working
Team & People Management Lead multidisciplinary agile teams including cloud engineers, DevOps specialists, analysts, and testers Mentor, coach, and support performance development to build a high-performing delivery culture Ensure effective resource planning to support sprint velocity and long-term delivery capacity Cloud Architecture & Engineering Oversight Oversee delivery of cloud … architectures, container platforms, and hybrid infrastructure solutions Guide adoption of Infrastructure as Code (IaC) and automation practices Collaborate on designs for scalability, resilience, and high availability across platforms Delivery Operations & Agile Governance Manage sprint planning, backlog prioritisation, and iterative delivery using agile methodologies Track and report delivery metrics ...

Senior Infrastructure Engineer

Hiring Organisation
Context Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £650/day outside IR35
Plan and execute migrations, including tenant-to-tenant Microsoft 365 and Active Directory consolidations * Collaborate with managed service providers and internal teams to maintain high availability, security and compliance * Support business continuity through proactive monitoring, incident management and disaster recovery planning * Mentor and provide technical guidance to team ...

AI Chatbot Technical Lead

Hiring Organisation
FDM Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£60,000 - £95,000 per annum
Chat API using Python, LangChain, and OpenAI services on Azure Function Apps Monitor and resolve API bugs and performance issues to ensure high availability and reliability Oversee and troubleshoot data ingestion processes supporting the chatbot’s functionality Collaborate with solution architects, product teams, and the cloud team ...

SC Cleared SQL Server Architect

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £640 per day + Inside IR35
Required: SC Clearance UK Passport holders only Dual nationality not supported Location: Hybrid - 60% onsite/40% remote (Central London) Overview: design and validate High Availability (HA) and Disaster Recovery (DR) solutions for SQL Server in AWS, supporting a mission-critical SharePoint environment. Key Activities Define PoV success ...

SQL DBA

Hiring Organisation
VIQU IT
Location
London, Bishopsgate, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600/day Inside IR35
. Take ownership of code reviews and actively participate in peer reviews. Configure and maintain SQL Server Databases Performance tuning and optimization Experience with High Availability and Disaster Recovery processes Support the full data lifecycle, contributing to an agile working environment Provide coaching and mentoring to colleagues when ...

Lead Technical Architect

Hiring Organisation
Adecco
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £750 per day
Azure. Your responsibilities include: Architecture and Design: Craft end-to-end technical solutions that meet user needs. Cloud and Infrastructure: utilise Azure services for high availability and disaster recovery. Security and Compliance: Ensure adherence to NCSC Cloud Security Principles and data protection regulations. Governance and Assurance: Participate ...

Clinical Consultant - (Medical Imaging)

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £500/day
features or clinical applications. Common security technologies (AD, LDAP, End point protection) and practices Storage Platforms technologies (RAID, SAN, NAS, tape libraries) High availability technologies (i.e. based on Hypervisor, OS, Veritas, Oracle) .NET, C++, java programming language knowledge Qualifications & Experience Bachelor's degree or equivalent; a clinical degree … experience with additional clinical applications and imaging workflows. Preferably few years of hospital or clinical experience with deep understanding of real-world radiology workflows. High energy, self-driven work style with the ability to work independently and proactively. Excellent communication and presentation skills, with proven ability to train clinical ...

SAP Basis Consultant

Hiring Organisation
Robert Half Limited
Location
London, United Kingdom
Employment Type
Contract, Work From Home
experience to lead the technical separation and stabilisation of SAP environments during M&A activity. The ideal candidate will be comfortable operating in a high-pace, results-driven PE environment where timelines are tight, governance is lean, and execution quality is critical. Role SAP Carve-Out & System Separation (Hands … database activities including SAP HANA administration Execute migrations and system refreshes Assist with cloud-hosted environments (e.g., Amazon Web Services, Microsoft Azure) Configure backup, high availability, and disaster recovery setups Operating Within a PE Environment Deliver against tight carve-out deadlines Maintain clear technical risk visibility Focus ...

SC Cleared SQL Server Architect

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 600 - 640 Daily
Required: SC Clearance UK Passport holders only Dual nationality not supported Location: Hybrid - 60% onsite/40% remote (Central London) Overview: design and validate High Availability (HA) and Disaster Recovery (DR) solutions for SQL Server in AWS, supporting a mission-critical SharePoint environment click apply for full ...

Senior SAN Engineer

Hiring Organisation
Click Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £475/day
using Dell EMC, Pure Storage, Cisco, Brocade, and HPE technologies. Office base locations available: London, Birmingham, Sheffield, Edinburgh Key Responsibilities Design, implement, and support high-availability SAN environments Administer, monitor, and troubleshoot enterprise storage platforms Lead storage and SAN migration projects Provide 3rd-level SAN support and root ...

Infrastructure Engineer (Hyper-V and Storage)

Hiring Organisation
Pearson Whiffin Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £500 per day
storage. Administration & Maintenance Manage virtual machines (provisioning, patching, upgrades, decommissioning). Monitor performance and capacity planning. Perform regular health checks and system audits. High Availability & Disaster Recovery Implement live migration and storage migration. Configure replication using Hyper-V Replica. Develop and test disaster recovery plans. Ensure backup integration ...

Solution Architect

Hiring Organisation
Stackstudio Digital Ltd
Location
West London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £400 to £500 per day
. Stakeholder Engagement: Act as a trusted advisor to senior business leaders, leading workshops to translate business requirements into technical blueprints. Performance Optimization: Ensure high availability, low latency, and resilience in payment processing to maximize transaction success rates and improve customer experience. Project Leadership: Provide technical governance from ...

Network Architect

Hiring Organisation
Networking People (UK) Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700 per day + Outside of IR35
supports the deployment and validation of network solutions, ensuring they meet performance, scalability, and security requirements. Key Responsibilities Design and document network architectures, including high-level and low-level designs. Lead the planning and implementation of network connectivity across multiple sites and environments. Ensure integration of networking and security … design, and implementation within enterprise or service provider environments. Strong knowledge of routing, switching, WAN technologies, and network security. Experience designing scalable, secure, and high-availability network solutions across multiple sites. Familiarity with common networking protocols and services (e.g., TCP/IP, VPNs, DNS, DHCP, QoS). Experience ...

Microsoft Teams Subject Matter Expert (SME)- 6-Month Contract - London

Hiring Organisation
Hamilton Barnes
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 450 Daily
Teams Subject Matter Expert (SME) to support and enhance enterprise-scale collaboration and communication services. This role sits at the heart of a complex, high-availability Microsoft 365 environment supporting a large, business-critical user base across a regulated enterprise/customer industry. Key Responsibilities Provide Level ...

NetApp Senior Storage Engineer

Hiring Organisation
4M Recruitment
Location
London, Fitzrovia, United Kingdom
Employment Type
Contract
Contract Rate
£465/day
Virtual Machines (SVMs) Management of Snapshots and SnapMirror replication Storage Architecture & Operations Design and support of enterprise storage solutions Capacity planning and performance tuning High availability configurations (HA pairs, clustering) Firmware and ONTAP upgrades Storage migrations and data lifecycle management Backup & Disaster Recovery Strong understanding of backup fundamentals ...

One Identity Safeguard Engineer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
applications into Safeguard Configure access request workflows, session policies, and approval processes Integrate Safeguard with Active Directory, Azure AD, and other identity providers Support high availability (HA) configuration and performance optimisation Conduct health checks, remediation, and best-practice improvements Produce technical documentation and operational runbooks Work closely with ...

DBA Lead - Sybase IQ

Hiring Organisation
ECS
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£550 - £600 per day
migrations, and disaster recovery processes. Implement and enforce database best practices, standards, and governance. Collaborate with data engineering, analytics, and business teams to support high-volume data ingestion and reporting. Troubleshoot and resolve complex database issues to ensure high availability and reliability. Requirements: Extensive SAP IQ (Sybase ...

Starburst Developer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £500 per day
Your responsibilities: Design and maintain data pipelines using Starburst and related technologies. Optimize query performance and resolve data processing bottlenecks. Manage databases to ensure high availability, reliability and security. Integrate Starburst with various data sources including cloud services and APIs. Monitor data pipelines and troubleshoot issues proactively. Collaborate ...

SQL Database Administrator

Hiring Organisation
VIQU IT Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £550 per day
Microsoft SQL Server administration (multiple versions) Performance tuning, indexing, query optimisation and troubleshooting Database version upgrades and consolidation projects Backup, recovery and high availability strategies Working within complex or legacy environments Ownership of database strategy and continuous improvement Key responsibilities of the SQL DBA: Full ownership and management ...

System Administrator

Hiring Organisation
DCV Technologies Limited
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £500 to £550 per day
support a large, enterprise-scale IBM Z environment. This is a hands-on role focused on DB2 for z/OS system-level administration, availability, performance, and resilience. Youll work on critical production systems, owning DB2 subsystem health, upgrades, tuning and recovery, while collaborating with infrastructure, security and vendor … directory Administration of Broadcom/CA tools (Platinum, SYSVIEW for DB2) Implementing and managing DB2 security via RACF, ACF2 or Top Secret Supporting high-availability, production mainframe environments Client-facing communication and participation in vendor engagements Essential Skills & Experience Strong experience as a DB2 System Administrator/Systems ...