126 to 150 of 290 High Availability Jobs in the UK

AWS Architect

Hiring Organisation
Ascendion
Location
London, United Kingdom
Employment Type
Permanent, Contract
secure AWS architectures for market data and pricing platforms Architect and govern API layers (REST/event-driven) for internal and external consumers Ensure high availability, performance and resilience across critical financial systems Solutioning & DevOps Lead solution design across multiple delivery teams Define and embed DevOps and Infrastructure ...

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 ...

Sharepoint Architect

Hiring Organisation
Set2Recruit
Location
United Kingdom
implement the SharePoint farm topology and supporting services Architect and configure the Project Server environment and PWA configuration Design the SQL Server architecture including high availability and disaster recovery considerations Support infrastructure discussions including virtualised environments and Azure SQL integrations Lead or support the installation, configuration and validation ...

Network Engineer

Hiring Organisation
Rise Technical Recruitment
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day
client is looking for an experienced Network Engineer to be responsible for designing, implementing, securing, and maintaining enterprise network infrastructure with a focus on high availability, performance, and resilience. You will provide advanced technical leadership across routing, switching, firewall administration, and network security operations. ...

AI Platform Engineer (DevOps / MLOps Focus)

Hiring Organisation
The Portfolio Group
Location
London, United Kingdom
Employment Type
Permanent
Salary
£80000/annum
focused environments) Kubernetes, containerisation, and distributed systems Terraform/Infrastructure-as-Code CI/CD, automation, and platform reliability Running production workloads with high availability requirements Plus, experience with one or more of the following: MLOps or ML platform engineering RAG architectures, embeddings, or vector search Model serving ...

PingFederate Engineer/Consultant

Hiring Organisation
Initialize IT
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
/LDAP and external identity providers. Platform Administration & Operations Perform installation, configuration, upgrade, and patching of PingFederate in line with UK enterprise standards. Configure high availability, clustering, and load-balanced deployments suitable for regulated production environments. Manage SSL/TLS certificates , key rotation, trust stores, and federation metadata. ...

IT Infrastructure Engineer (EMEA)

Hiring Organisation
DOMO TACTICAL COMMUNICATIONS
Location
PO15, Whiteley, Hampshire, United Kingdom
Employment Type
Permanent
consistent technical approaches Ensure compliance with configuration management and change control processes within the IT services architecture Diagnose and resolve infrastructure issues to maintain high availability and service continuity Assist the IT team with the deployment, evaluation, and optimisation of new technologies and enhancements to existing systems Ensure ...

Systems Administrator

Hiring Organisation
RedTech Recruitment Ltd
Location
United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Clearance due to the nature of some projects Responsibilities for Sys Admin: Set up, manage, and maintain Linux server environments, ensuring optimal performance and high availability. Apply security best practices across all systems, performing regular audits and updates. Support devices on Windows and macOS, ensuring smooth integration and functionality. ...

NSX-T Engineer / Architect | SC Cleared

Hiring Organisation
Sanderson
Location
Farnborough, Hampshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £750 per day
scalable network solutions across mission-critical environments. This is an opportunity to work at the forefront of software-defined networking within a complex, high-security landscape. Key Responsibilities Lead the design, deployment, and administration of VMware NSX-T, including logical switching, routing, distributed firewalls, and micro- Architect robust Layer … advanced firewalling and security controls, including segmentation strategies, IDS/IPS, and zero-trust methodologies. Support and optimise L4/L7 load balancing and high-availability patterns. Deploy and enhance SD-WAN architectures to ensure resilient, high-performance connectivity. Drive network automation using Python, Ansible, or vendor ...

NSX-T Engineer / Architect SC Cleared

Hiring Organisation
Sanderson Government and Defence
Location
Farnborough, Hampshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £750 per day
scalable network solutions across mission-critical environments. This is an opportunity to work at the forefront of software-defined networking within a complex, high-security landscape. Key Responsibilities Lead the design, deployment, and administration of VMware NSX-T, including logical switching, routing, distributed firewalls, and micro- Architect robust Layer … advanced firewalling and security controls, including segmentation strategies, IDS/IPS, and zero-trust methodologies. Support and optimise L4/L7 load balancing and high-availability patterns. Deploy and enhance SD-WAN architectures to ensure resilient, high-performance connectivity. Drive network automation using Python, Ansible, or vendor ...

Principal Software Engineer

Hiring Organisation
Verifone
Location
City of London, London, United Kingdom
role sits at the heart of Verifone’s global payment gateway platform. You will help shape the technical direction of systems responsible for processing high‐volume, mission‐critical financial transactions worldwide. At this level, the role goes beyond feature delivery. You will drive architectural decisions, set engineering standards … work closely with senior engineering, platform, product, and infrastructure partners to ensure our systems scale globally, remain secure, and meet the highest standards for availability and performance. Required Skills and Experience Needed Programming Languages Java 17 or higher Frameworks and Libraries Spring Boot Spring Web (REST APIs) Spring Data ...

SQL DBA

Hiring Organisation
Sanderson Recruitment
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
Up to £417.22 per day + Inside IR-35
experienced SQL DBA to support a range of secure government platforms. You'll work within a skilled technical team to deliver reliable, high-performing database services across Microsoft SQL Server environments, with additional exposure to PostgreSQL and MySQL. Day to day, you'll handle installation, configuration, patching and maintenance … plus performance tuning, monitoring, and health checks. You'll own backup and recovery processes, high-availability solutions, and troubleshooting of complex database issues. You'll also support developers with database design, schema improvements and optimised SQL. The role involves improving performance through indexing strategies, query optimisation and capacity ...

AWS Data Engineer

Hiring Organisation
83zero Limited
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Permanent
Salary
£70,000
looking for experienced Data Engineers to join a long-standing, high-impact public sector partnership. This isn't just about moving data; it's about modernizing essential services and delivering secure, reliable data products at scale. You will play a pivotal role in shaping engineering design, mentoring talent … Sector & Government Client Build the Data Infrastructure That Powers the Public Sector We are looking for experienced Data Engineers to join a long-standing, high-impact public sector partnership. This isn't just about moving data; it's about modernizing essential services and delivering secure, reliable data products ...

Senior Data Engineer

Hiring Organisation
Retelligence
Location
City of London, London, United Kingdom
Hybrid) Rate: £450-550 per day IR35 Status: Outside IR35 Duration: 3 Months (Initial + likely extension) The Opportunity We are looking for a high-calibre Senior GCP Data Engineer to join one of London's fastest-growing technology success stories. Following a period of exceptional performance and record … pipelines to ingest data from a variety of internal and external sources. Infrastructure: Leveraging the full power of Google Cloud Platform to ensure high availability and performance of our data environment. Optimization: Refining and optimizing complex SQL queries and Python scripts to ensure efficient data processing and cost ...

Senior Network Infrastructure Engineer

Hiring Organisation
Context Recruitment Limited
Location
Leicester, Leicestershire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £52,000 per annum
position blends significant project delivery with BAU responsibilities, offering the chance to work on complex migrations, data centre consolidation, and ongoing optimisation of a high-availability network. Key Responsibilities Lead and deliver network infrastructure projects, including data centre consolidation and migration activities. Design, configure, and deploy switches … Carry out BAU tasks such as firmware upgrades, patching, and general network maintenance. Provide expert support across the core network to ensure resilience and high performance. Work with Cisco ASA and Fortinet firewalls to maintain secure network operations. About You Strong hands-on experience with MPLS, particularly Layer ...

Senior Network Architect - DV Cleared

Hiring Organisation
Experis
Location
Basingstoke, Hampshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
Up to £550 per day
will design and deliver medium to large scale network solutions while supporting multiple work streams and engaging with technical and project stakeholders across a high profile environment. About the Role - Network Architect As a Network Architect , you will work closely with Programme and Project Managers to produce high … Network Architect Strong experience designing secure enterprise networks using Cisco , Juniper , and Gigamon technologies. Knowledge of routing protocols , VRFs, VPNs, QoS, security zones, high availability, and IP addressing design. Skilled in troubleshooting and resolving defects across multi vendor technologies. Experience of overseas infrastructure delivery is essential. Understanding ...

Senior Network Architect - DV Cleared

Hiring Organisation
Experis
Location
Basingstoke, Hampshire, UK
Employment Type
Full-time
will design and deliver medium to large scale network solutions while supporting multiple work streams and engaging with technical and project stakeholders across a high profile environment. About the Role - Network Architect As a Network Architect, you will work closely with Programme and Project Managers to produce high … Network Architect Strong experience designing secure enterprise networks using Cisco, Juniper, and Gigamon technologies. Knowledge of routing protocols, VRFs, VPNs, QoS, security zones, high availability, and IP addressing design. Skilled in troubleshooting and resolving defects across multi vendor technologies. Experience of overseas infrastructure delivery is essential. Understanding ...

Network Engineer

Hiring Organisation
Harvey Nash
Location
Edinburgh, Midlothian, Scotland, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
overall change programme. Promoting best practice in network management you will ensure that the clients policy and procedures maintain quality assurance levels of a high standard. Main Responsibilities The key focus for this contract at the start is to focus on the following projects: Manage the migration of internet … well as Nexus switches), ideally supported by a recognised network certification. Knowledge of troubleshooting physical network site infrastructure Experience of building, managing and maintaining high availability networks with Cisco devices Working knowledge or experience in some or all of the following subjects: Cisco Networking, Unified Communications ...

Oracle DBA (SC Cleared)

Hiring Organisation
TXP
Location
Nationwide, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
capability. Experience of performance diagnostics and tuning. Experience supporting Oracle on Linux or Unix platforms. Familiarity with ITIL aligned service management processes. Experience supporting high availability and mission critical systems. If this sounds like the role for you, please forward an up to date copy of your ...

DevOps Tech Lead

Hiring Organisation
Inspera
Location
United Kingdom
Engineering Own AWS multi-account architecture (secure-by-design) Define infrastructure standards (networking, IAM, logging, DR) Lead Infrastructure-as-Code strategy (Terraform preferred) Ensure high availability and resilience across production SaaS environments CI/CD & Release Engineering Design and optimise CI/CD pipelines Improve deployment reliability ...

Lead DevOps Engineer

Hiring Organisation
Data Careers
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
secure-by-design) Define infrastructure standards across networking, IAM, logging and disaster recovery Lead Infrastructure-as-Code strategy (Terraform preferred) Ensure scalability, resilience and high availability across production environments CI/CD & Release Automation Design and optimise CI/CD pipelines Improve deployment reliability and reduce rollback frequency ...

Infrastructure Engineer (Virtualisation)

Hiring Organisation
KBC Technologies Group
Location
Sheffield, England, United Kingdom
operate, and continuously improve virtualisation platforms (VMware vSphere/ESXi, Hyper-V). Manage platform lifecycle: patching, upgrades, capacity planning, and hardware refreshes. Ensure high availability, resilience, and disaster recovery readiness. Automate infrastructure provisioning and standardise virtualisation builds. Troubleshoot complex incidents, perform root cause analysis, and implement preventive ...

Infrastructure Engineer (Virtualisation)

Hiring Organisation
KBC Technologies UK LTD
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
operate, and continuously improve virtualisation platforms (VMware vSphere/ESXi, Hyper-V). Manage platform lifecycle: patching, upgrades, capacity planning, and hardware refreshes. Ensure high availability, resilience, and disaster recovery readiness. Automate infrastructure provisioning and standardise virtualisation builds. Troubleshoot complex incidents, perform root cause analysis, and implement preventive ...

Infrastructure Virtualisation Engineer

Hiring Organisation
Guidant Global
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
£350 - £500/day
implementation, and troubleshooting of the following: VMwareESXi Distributed Virtual Switches Distributed Resource Scheduler Distributed Power Management VMwarevSAN Hybrid and All Flash storage configurations VMwarevCenter High Availability; Clustering; Cross-site failure and resiliency VMwareNSX Microsegmentation Firewalling Cross Site VC NSX VMware Horizon At least one professional Virtualisation certification that ...

SIEM Engineer

Hiring Organisation
Searchability NS&D
Location
Watford, Hertfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 - £95,000 per annum
detection engineering Experience with automation, scripting or Infrastructure as Code in SIEM environments Understanding of MITRE ATT&CK and threat detection techniques Experience with high availability, disaster recovery and SIEM performance optimisation TO BE CONSIDERED Please either apply through this advert or email me directly at . ...