126 to 150 of 203 High Availability Jobs in the UK

IT Applications Analyst

Hiring Organisation
Larbey Evans
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
Hybrid working (3 days office/2 days remote) You will focus on the operational support and continuous improvement of enterprise application environments, ensuring high availability, security, and performance. Key responsibilities include day-to-day maintenance, patching, monitoring, and user support across critical systems, while also contributing ...

NOC Engineer TLNT1 NI

Hiring Organisation
VANRATH
Location
Belfast, UK
certification Windows OS and Server support experience Familiarity with ITIL service management environments Experience using network monitoring tools Previous exposure to critical infrastructure or high-availability environments Experience working with telecoms, MSPs, or enterprise support teams Knowledge of networking technologies including routing and switching Why choose VANRATH? Partnering ...

NOC Engineer JBLE1 NI

Hiring Organisation
VANRATH
Location
Belfast, UK
certification Windows OS and Server support experience Familiarity with ITIL service management environments Experience using network monitoring tools Previous exposure to critical infrastructure or high-availability environments Experience working with telecoms, MSPs, or enterprise support teams Knowledge of networking technologies including routing and switching Why choose VANRATH? Partnering ...

Application Support Manager

Hiring Organisation
Proactive Appointments
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£475 - £500 per day
delivery, support, and continuous improvement of critical business applications, including core banking platforms. This role combines hands-on technical oversight with leadership responsibility, ensuring high availability, performance, and strategic development across application services. You will play a key role in managing both change delivery and BAU support, while ...

Field Infrastructure Engineer

Hiring Organisation
Michael Page
Location
Bristol, Gloucestershire, United Kingdom
Employment Type
Permanent
Salary
GBP 45,000 - 50,000 Annual
line support for complex issues, delivering on-site troubleshooting and root cause analysis, and collaborating with internal teams and external vendors to ensure high availability and performance. You will also contribute to infrastructure projects, new site rollouts, and continuous improvement initiatives, ensuring systems remain secure, compliant, and resilient ...

IT Support Engineer

Hiring Organisation
VIQU IT
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 150 - 250 Daily
user environments. This role requires a structured and analytical approach to problem-solving, with the ability to manage competing priorities in a fast-moving, high-availability environment. You will collaborate closely with technical teams across the business to ensure reliable service delivery, operational continuity, and continuous improvement ...

IT Support Engineer

Hiring Organisation
VIQU IT
Location
London, Fleet Street, United Kingdom
Employment Type
Contract
Contract Rate
£150 - £250/day
user environments. This role requires a structured and analytical approach to problem-solving, with the ability to manage competing priorities in a fast-moving, high-availability environment. You will collaborate closely with technical teams across the business to ensure reliable service delivery, operational continuity, and continuous improvement ...

Network Engineer

Hiring Organisation
VIQU IT Recruitment
Location
Glasgow Area, Scotland, United Kingdom
Employment Type
Permanent
Salary
£55,000
complex global network estate, while contributing to ongoing cloud and SD-WAN migration initiatives. You'll join a collaborative infrastructure team responsible for ensuring high availability, security, and performance across the organisation's core networking platforms. The role will involve a mix of operational support, troubleshooting, major incident ...

Solace Middleware Engineer

Hiring Organisation
Reed Talent Solutions
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 700 - 750 Daily
patterns optimized for low-latency trading. Configure and tune Solace brokers, message VPNs, queues, topic endpoints, and client profiles for optimal performance. Manage Solace high-availability configurations including primary/backup broker pairs and replication. Implement Solace DMR (Dynamic Message Routing) for inter-datacenter message distribution. Define ...

Siebel Developer

Hiring Organisation
Damia Group Ltd
Location
Surrey, South East, United Kingdom
Employment Type
Contract
Contract Rate
£530 - £630 per day + Inside IR35
role in the design, development and support of a bespoke Siebel CRM implementation. Responsibilities include: Enhancing and maintaining Siebel applications within a secure, high-availability environment Designing and implementing solutions aligned to established engineering standards and best practice Configuring Siebel components using Siebel Tools Developing and maintaining Siebel ...

Network & Communications Specialist

Hiring Organisation
Sheffield Health Partnership University NHS Foundation Trust
Location
Sheffield, S6 1LX, United Kingdom
Salary
£49387.00 to £56515.00
people, we would love to hear from you. Main duties of the job Lead the secure delivery and ongoing performance of infrastructure, systems, ensuring high availability, resilience, and compliance through best practice design, maintenance, monitoring, and continuity planning. To provide day-to-day leadership of a 3rd Line ...

Network Engineer

Hiring Organisation
VIQU IT
Location
Guildford, Surrey, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450/day Outside IR35
wireless networking technologies. Strong FortiGate experience including firewall policy management, IPS/IDS, SSL inspection, web filtering, SD-WAN, VPNs and High Availability. Experience administering and supporting Palo Alto firewalls. Proven experience delivering hybrid cloud networking solutions across Azure and AWS would be beneficial Proven experience supporting large-scale ...

Network Engineer

Hiring Organisation
Akkodis
Location
London, United Kingdom
Employment Type
Permanent
Salary
£55000 - £65000/annum
solutions integrated with SaaS and enterprise systems. Manage and support network security platforms, monitor performance, troubleshoot complex issues, and ensure high availability. Develop automation solutions for provisioning and configuration, while driving continuous improvement and standardisation What We're Looking For: Proven experience in enterprise networking (5+ years) with strong ...

Senior Technician Infrastructure

Hiring Organisation
Randstad Digital
Location
Chelmsford, Essex, South East, United Kingdom
Employment Type
Contract
Contract Rate
£15 - £20 per hour + Negotiable
week) Job Type: Contract About the Role Are you an experienced IT professional looking to do meaningful work? We are partnering with a vital, high-profile public sector organization to find a Senior Infrastructure Technician. In this critical role, you will be the backbone of the organization's digital … operations, ensuring the high availability of mission-critical systems-including emergency operations and dispatch technology. You will act as the senior technical expert within the digital team, tackling complex problems and helping the organization run smoothly and securely. Key Responsibilities Provide advanced 3rd line digital support to resolve ...

Active Directory Specialist (on-site Aldermaston) (Open)

Hiring Organisation
DXC
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
enhancing a complex hybrid identity services environment that spans both On-Prem Active Directory and Entra (Azure Active Directory). Operating within a high-security, fast-paced public-sector setting, the role requires delivering expert 2nd/3rd line technical support while also contributing to long-term service transformation … secure configuration baselines. Manage core AD infrastructure components such as Domain Controllers, FSMO roles, DNS, DHCP, Sites & Services, ensuring resilience, correct topology, and high availability. Implement and enforce Azure AD security controls, including RBAC, Conditional Access, MFA, Identity Protection, PIM, and other Zero Trust aligned safeguards. Support Azure-based ...

Java Backend Developer with Microservices - Burgess Hill, UK

Hiring Organisation
Randstad Digital
Location
Burgess Hill, West Sussex, South East, United Kingdom
Employment Type
Permanent
Salary
£70,000
PERM Location: Burgess Hill, UK Working Model: Hybrid (3 days per week in office) Salary: 65K - 70K The Role: Build, troubleshoot, deploy, and scale high-quality software using distributed enterprise frameworks. Mandatory Skills: Up to 5 years of experience. Strong knowledge of Java (8+), Microservices, Spring Boot, Kafka … should also be familiar with TDD, CI/CD, and version control (GIT). Bonus Skills: Experience with GoLang (1+ year), Cloud computing, VertX, high-availability caching, and Agile methodologies. Education: University degree in Computer Science, Computer Engineering, or equivalent. This is an urgent vacancy with a deadline ...

Senior Kotlin Engineer (XP, GCP) - Investment Banking - London

Hiring Organisation
Salt Search
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £800 per day
Senior Kotlin engineer to support and extend a cloud-hosted platform used for bookbuilding issuances within Investment Banking Capital Markets. You will join a high-calibre London-based front office engineering team working on a next-generation issuance platform replacing a legacy bookbuilding system. This is a hands … including mob programming, test-driven development, and continuous refactoring. Engineers are expected to contribute across development, integration, and production support, collaborating closely to maintain high standards of code quality, system reliability, and performance. Required & Desirable Skills Strong commercial experience building backend services using Kotlin Experience with event-sourced ...

Azure & Databricks Data Architect – Cloud, Governance & Analytics

Hiring Organisation
Jobleads-UK
Location
Bristol, England, United Kingdom
secure data architecture that empowers advanced analytics, supports regulatory reporting, and drives long-term business value. You will lead the design of a high-performance data estate, built primarily on Microsoft Azure and Databricks Key Responsibilities Design and implement scalable, secure cloud-based data architecture (Azure & Databricks) Develop optimised … aligned with compliance Enable real-time analytics and machine learning use cases across business functions Ensure data integration across structured/unstructured sources with high availability Lead innovation and adopt best practices in data engineering and architecture Collaborate with internal stakeholders and third-party vendors Key Skills & Experience ...

Data Architect

Hiring Organisation
Salt Search
Location
London, South East, England, United Kingdom
Employment Type
Temporary
Salary
£360 per day
looking for an experienced Data Architect to join a major transformation initiative within financial services. This is a high-impact role where you'll define and modernise enterprise data architecture across both traditional relational platforms and cutting-edge distributed NoSQL technologies. You'll be the authority on data modelling … current and future-state enterprise data architectures. Design and deliver enterprise-wide data models, including: Domain Models Conceptual Models Logical Models Physical Models Architect high-performance data solutions across: Oracle PostgreSQL Cassandra YugabyteDB On-premise and cloud environments Define data standards, governance frameworks, modelling conventions, and metadata strategies. Drive ...

Principal Software Engineer

Hiring Organisation
Platform Recruitment Limited
Location
Cambridge, Cambridgeshire, East Anglia, United Kingdom
Employment Type
Permanent
Salary
£80,000
shape the technical direction of their platform. Key Responsibilities: Lead architecture and implementation of systems in C#/.NET Build low-latency applications handling high-volume data traffic Drive technical vision and mentor engineers across the team Oversee code reviews, coding standards and CI/CD pipelines Key Requirements … Core Strong distributed systems and microservices background Hands-on experience with RabbitMQ, Kafka or similar messaging technologies Proficiency with TCP/IP, gRPC and high-availability protocols Performance tuning, concurrency and multithreading expertise Docker, Kubernetes and CI/CD familiarity Relevant degree If this sounds like your next ...

Infrastructure Engineer

Hiring Organisation
Sterling Bridge Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
Salary: £70,000 £80,000 Enterprise Infrastructure | Fortinet Security Stack | Leading Property Development Company Were partnered with a leading property development company thats delivering high-profile projects across the UK and continuing to invest heavily into its internal technology environment. As the business continues to grow, theyre now looking … major part of the companys long-term growth strategy. Youll gain hands-on exposure across cloud infrastructure, enterprise networking, virtualization, cyber security, and high-availability systems , supporting critical operations across multiple offices and sites. What makes this role particularly attractive is the level of ownership and project exposure ...

IT Database and Web Platform Engineer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Platform Engineer to join our London based law firm on a permanent basis. Key Responsibilities * Provide third-line support to a rich array of high profile legal and information systems which are fundamental to the firm. * Proactive management and analysis of the global server estate which encompasses … infrastructure meets the underlying service level targets. Key Experience * Extensive administration and understanding of SharePoint, Web, SQL, and SSO. * Applied knowledge of native SQL high-availability and disaster recovery options including Always-On, Mirroring, Replication, Log Shipping and Clustering. * Experience in migrations to Azure SQL Paas services desirable. ...

Lead Technical Architect

Hiring Organisation
DWP Digital
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
work will directly impact how citizens interact with vital public services, improving accessibility, efficiency and user experience at a national scale. This is a high-impact role where you'll define technical direction, govern architecture decisions and inspire teams across DWP Digital, driving one of the most significant digital … services and integrated customer journeys You can design end-to-end contact centre solutions, including call routing, customer journeys, agent workflows, and scalable/high-availability environments You have experience with telephony and contact centre technologies (such as Cisco, Avaya, Genesys, Amazon Connect or NICE CXone), including VoIP ...

Lead Technical Architect

Hiring Organisation
DWP Digital
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
work will directly impact how citizens interact with vital public services, improving accessibility, efficiency and user experience at a national scale. This is a high-impact role where you'll define technical direction, govern architecture decisions and inspire teams across DWP Digital, driving one of the most significant digital … services and integrated customer journeys You can design end-to-end contact centre solutions, including call routing, customer journeys, agent workflows, and scalable/high-availability environments You have experience with telephony and contact centre technologies (such as Cisco, Avaya, Genesys, Amazon Connect or NICE CXone), including VoIP ...

Lead Technical Architect

Hiring Organisation
DWP Digital
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
work will directly impact how citizens interact with vital public services, improving accessibility, efficiency and user experience at a national scale. This is a high-impact role where you'll define technical direction, govern architecture decisions and inspire teams across DWP Digital, driving one of the most significant digital … services and integrated customer journeys You can design end-to-end contact centre solutions, including call routing, customer journeys, agent workflows, and scalable/high-availability environments You have experience with telephony and contact centre technologies (such as Cisco, Avaya, Genesys, Amazon Connect or NICE CXone), including VoIP ...