26 to 50 of 203 High Availability Jobs in the UK

C#.Net Developer

Hiring Organisation
Boston Hale
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £550 per day
days onsite/2 days remote) I'm partnering with a leading multinational investment management firm seeking a strong C# Developer to join a high-performing engineering team delivering business-critical platforms. This role requires someone confident with strong communication skills to engage directly with stakeholders, shaping requirements … working on: Real-time asset tracking platforms integrating external data sources (e.g. Bloomberg, Refinitiv, Morningstar, market data feeds, pricing & risk engines) High-availability, high-quality distributed applications Enhancing systems that model financial positions, transactions and flows Driving projects from inception through design, build, testing and release Core ...

Senior Java Engineer TLNT1 NI

Hiring Organisation
Ocho
Location
Belfast, UK
based deployments A proactive, problem-solving mindset Nice to have Spring/Spring Boot Infrastructure as Code (Terraform, CloudFormation) Containerisation (Docker, Kubernetes) Experience in high-availability or high-throughput environments This role would suit a senior engineer who enjoys building reliable cloud systems and taking ownership from ...

Linux Infrastructure Engineer eDV Cleared

Hiring Organisation
Bulb Resourcing
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
Salary
£80,000
drive automation and performance tuning to support business-critical services. This permanent, on-site role requires a green badge (eDV) Security Clearance to work high side. About the Client Our client is a highly respected specialist consultancy dedicated to driving efficiency, strategic alignment, and innovation within complex environments. Dedicated … high availability and operational excellence, they provide a structured and collaborative environment where professionals can truly optimise infrastructure performance. Due to sustained growth and new project demands, they are currently expanding their technical delivery teams. Key Responsibilities Design, implement, and support secure, resilient Linux-based infrastructure environments (e.g. ...

DevOps & Infrastructure Engineer

Hiring Organisation
Computer Futures
Location
United Kingdom
Employment Type
Permanent
Salary
GBP 50,000 - 70,000 Annual
infrastructure-related events Monitoring, Reliability & Support Implement monitoring, alerting, and observability across infrastructure and applications Define SLAs/SLOs and ensure systems meet availability and performance requirements Provide 3rd line support and escalation for complex infrastructure issues Conduct capacity planning, performance tuning, and reliability improvements Lifecycle & Maintenance Manage patching … facing environment Flexible approach with occasional travel and out-of-hours support for deployments Summary This role offers the opportunity to work on complex, high-availability systems where infrastructure is critical to operational success. You will play a central role in shaping DevOps practices, improving system reliability ...

Infrastructure Engineer / Platform Architect

Hiring Organisation
Computer Futures
Location
Nottingham, Nottinghamshire, United Kingdom
Employment Type
Permanent
Salary
GBP 60,000 - 70,000 Annual
infrastructure-related events Monitoring, Reliability & Support Implement monitoring, alerting, and observability across infrastructure and applications Define SLAs/SLOs and ensure systems meet availability and performance requirements Provide 3rd line support and escalation for complex infrastructure issues Conduct capacity planning, performance tuning, and reliability improvements Lifecycle & Maintenance Manage patching … facing environment Flexible approach with occasional travel and out-of-hours support for deployments Summary This role offers the opportunity to work on complex, high-availability systems where infrastructure is critical to operational success. You will play a central role in shaping DevOps practices, improving system reliability ...

ML Infrastructure Lead

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
model versioning, reproducibility, experimentation, feature management and release management Own and improve the production environment for machine learning systems, ensuring strong standards for availability, performance, observability and resilience Define and implement monitoring across model and platform layers, including system health, data quality, drift, latency, throughput and cost efficiency Build … productionise models and improve the end-to-end ML development lifecycle Support the scaling of infrastructure for both training and inference workloads, including high-throughput, real-time or compute-intensive use cases where relevant Drive best practice in governance, security, compliance, auditability and operational rigour across the ML lifecycle ...

Data Platform Engineer

Hiring Organisation
London & Country Mortgages
Location
United Kingdom
Employment Type
Permanent
Role Matters Data is at the heart of our business. As our Data Platform Engineer, you'll ensure our platforms are robust, secure and high-performing while driving modernisation initiatives that improve developer experience, operational efficiency and business outcomes. You'll have the opportunity to: Lead the transformation … operational excellence. Work with modern cloud technologies in a highly regulated environment where reliability and security genuinely matter. What You'll Own The performance, availability, security and operational health of our SQL Server and Azure SQL environments. Database performance optimisation, capacity planning and resilience engineering. Monitoring, alerting and observability ...

DNS Architect - SC Cleared

Hiring Organisation
Hays Technology
Location
Wokingham, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£563 - £581/day Up to £581 inside IR35
MUST BE SC CLEARED (ACTIVE) My client is seeking an experienced and highly skilled DNS Architect to design, implement, and maintain scalable, secure, and high-performance Domain Name System (DNS) solutions. This role is critical in ensuring the reliability and efficiency of network naming services across enterprise and cloud … across enterprise and cloud platforms Manage and optimise DNS platforms (BIND, Microsoft DNS, Infoblox, AWS Route 53, Azure DNS) Lead DNS strategy including scalability, high availability, and performance optimisation Oversee DNS migrations, upgrades, and transformations Implement and maintain DNS security (DNSSEC, DDoS protection, threat mitigation) Monitor performance, availability ...

Lead Solution Architect Endur (ETRM Gas & Power Trading)

Hiring Organisation
BP Energy
Location
South West London, London, United Kingdom
Employment Type
Work From Home
LEBA), clearing and settlement platforms, confirmations engines, scheduling/nominations systems and downstream analytics. Own the Endur non-functional requirements strategy, covering performance, scalability, high availability, disaster recovery, security and auditability for a platform supporting real-time trading across multiple European and international markets. Broader Gas & Power Trading … trade capture, risk management (VaR, Greeks, Monte Carlo, stress testing), P&L attribution, settlement, confirmations and regulatory reporting. Expert understanding of integration architecture in high-performance trading environments including messaging (JMS, MQ, Kafka), API design (REST, GraphQL, gRPC), event-driven patterns, ETL/ELT, real-time market data connectivity ...

Dev Ops Engineer

Hiring Organisation
BTC Capital Markets Ltd
Location
SE1, Chaucer, Greater London, United Kingdom
Employment Type
Permanent
Salary
£45000 - £50000/annum
/Fintech About BTCC Founded in 2011, BTCC is one of the world’s longest-running cryptocurrency exchanges, committed to delivering secure, transparent, and high-performance digital asset trading infrastructure. With more than a decade of operational excellence in global crypto markets, BTCC continues to scale its technology stack … skills and ability to collaborate effectively with internal teams and external stakeholders. Excellent team player with the ability to work in a fast-paced, high-availability environment. Proficiency in Mandarin (verbal and written) is mandatory. Why BTCC? At BTCC, you will work at the forefront of blockchain infrastructure ...

NOC Operations Manager - REMOTE

Hiring Organisation
Proactive Appointments
Location
United Kingdom
Employment Type
Permanent
Salary
GBP Annual
About the Opportunity We are looking for an experienced NOC Operations Manager to lead our Network Operations Centre team and support the delivery of high-quality managed services across a complex, multi-platform infrastructure environment. This is a hands-on leadership role, combining team management with deep technical expertise … across Linux, Windows Server, networking, virtualisation, security, and business-critical infrastructure. You'll play a key role in maintaining service availability, driving operational excellence, and supporting customers across a range of industries. Key Responsibilities Lead and develop the NOC team, ensuring operational excellence and customer satisfaction. Manage and optimise ...

NOC Operations Manager - REMOTE

Hiring Organisation
Proactive Appointments
Location
Buckinghamshire, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £70,000 per annum
About the Opportunity We are looking for an experienced NOC Operations Manager to lead our Network Operations Centre team and support the delivery of high-quality managed services across a complex, multi-platform infrastructure environment. This is a hands-on leadership role, combining team management with deep technical expertise … across Linux, Windows Server, networking, virtualisation, security, and business-critical infrastructure. You'll play a key role in maintaining service availability, driving operational excellence, and supporting customers across a range of industries. Key Responsibilities Lead and develop the NOC team, ensuring operational excellence and customer satisfaction. Manage and optimise ...

Backend Engineer

Hiring Organisation
Tria
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
pipelines, and integrating with a customer engagement platform used in retail environments. You'll need to show where you've worked on highly available, high-traffic systems, collaborating closely with frontend engineers who are integrating booking and appointment functionality. Key Requirements: Strong commercial experience with Java and Spring Boot … Experience integrating backend services with third-party platforms and APIs Demonstrable experience working on high-availability, high-traffic applications ...

SQL DBA - Contract

Hiring Organisation
Be-IT Resourcing
Location
Edinburgh, Midlothian, Scotland, United Kingdom
Employment Type
Contractor
Contract Rate
£450 per day
seeking an experienced SQL Server Database Administrator to join our client on a 6-month contract. The role will focus on ensuring the performance, availability, security, and integrity of mission-critical SQL Server environments, while supporting ongoing operations, improvements, and project work. This role is well suited … development, infrastructure, and cloud teams. Key Responsibilities Administer, maintain, and support Microsoft SQL Server environments (2016–2022+) Monitor and optimise database performance, capacity, and availability Manage backup, restore, and recovery processes; test and validate DR procedures Troubleshoot and resolve production database issues and incidents Implement and maintain high ...

DevOps Engineer

Hiring Organisation
Spectrum IT Recruitment
Location
Hampshire, United Kingdom
Employment Type
Permanent
Ansible. Monitor application and infrastructure performance across AWS environments. Troubleshoot incidents, perform root cause analysis, and drive service improvements. Support production systems in a high-availability, SLA-driven environment. Collaborate with engineering, QA, and product teams to deliver reliable software releases. Participate in an on-call support rota. ...

Solution Architect

Hiring Organisation
Sanderson Recruitment
Location
South West, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£600 - £700 per day
skills required. Experience designing and documenting Microservice architectures Strong Integration background Layered Architectures Integration/Orchestration Experience designing and implementing enterprise business critical, high volume, scalable, high availability systems running in 24/7 regulated environments. Strong API experience (REST, WebSocket) Experience of Domain Driven Design. Experience ...

Senior Infrastructure Engineer

Hiring Organisation
Parent TEST TJ Company 1
Location
Eastleigh, Hampshire, South East, United Kingdom
Employment Type
Permanent
Youll work across hybrid and multi-cloud environments, ensuring platforms are secure, highly available , and fit for future growth. This is a hands-on, high-impact role for an experienced infrastructure engineer who enjoys shaping platforms, solving complex problems, and building resilient systems at scale. Youllbe trusted to make … operational excellence, including monitoring, maintenance, incident resolution, and root cause analysis. Driving resilience and reliability through proactive capacity management, disaster recovery planning, and high-availability design. Working closely with technical architects to turn high-level designs into reliable, production-ready solutions. Collaborating with development, operations, and security ...

Senior DBA

Hiring Organisation
Morson Edge
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
behalf of a leading technology-driven organisation to find a Senior DBA to support the delivery, maintenance and optimisation of secure, scalable, and high-performing database environments. This is a hands-on role focused on ensuring database reliability, automation, resilience, and operational excellence across business-critical platforms .Working closely … driving performance improvements and automation initiatives Key Responsibilities Administer and maintain production and non-production database environments Monitor and optimise performance, replication, backups and high-availability solution Troubleshoot complex database, infrastructure and capacity issues Implement upgrades, patching and security best practices Develop automation for provisioning, deployment and ongoing ...

Platform Consultant Expert - (Hybrid) TLNT1 NI

Hiring Organisation
Allstate Northern Ireland
Location
Belfast, UK
capability through shared platforms, orchestration patterns, and governance-by-design. Security Data & Observability (SD&O): Engineering and managing the Security Operations Data Plane, enabling high-fidelity telemetry, analytics, and AI-ready data. Tooling & Platform (T&P): Ensuring security tooling is integrated, governed, and aligned as part of a unified … capability through shared platforms, orchestration patterns, and governance-by-design. Security Data & Observability (SD&O): Engineering and managing the Security Operations Data Plane, enabling high-fidelity telemetry, analytics, and AI-ready data. Tooling & Platform (T&P): Ensuring security tooling is integrated, governed, and aligned as part of a unified ...

Senior DevOps Engineer (DSA BAU)

Hiring Organisation
Capita Shared Services Limited
Location
West London, London, United Kingdom
Employment Type
Permanent
Salary
£60,000
environment stability and release governance, and partner closely with Salesforce, MuleSoft, QA, and Operations. You will be responsible for ensuring seamless software delivery through high-quality automation and robust deployment strategies. *CANDIDATES MUST BE ELIGIBLE FOR SC CLEARANCE* What you'll be doing: CI/CD Pipeline Management: Design … Ansible to automate infrastructure provisioning and maintain consistency across environments. MuleSoft Integration: Oversee deployment and lifecycle management for MuleSoft APIs and integrations, ensuring high availability and reliability. (CloudHub 2.0, Runtime Manager, properties encryption, secret management via Azure Key Vault). How this aligns to Capita's values: Customer ...

Senior DevOps Engineer

Hiring Organisation
Halian Technology Limited
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
Salary
£85,000
work in a purpose-driven company! Requirements: Proven experience (5+ years) in a DevOps or similar role, ideally within a cloud-first, SaaS, or high-availability environment. Strong expertise with Azure (preferred), AWS, or Google Cloud and familiarity with cloud-native tools and services. DevOps experience ...

Principal Software Engineer

Hiring Organisation
FBI &TMT
Location
Southampton, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
£85,000
projects Collaborate with stakeholders, including customers, to develop and maintain software Assist the software engineering manager in requirements management, estimation, and planning Focus on high-level architecture and long-term technical strategy Innovate solutions to improve software processes and quality Integrate software with hardware to deliver complete systems Optimise … application architectures for scalability and performance Monitor system performance and troubleshoot issues to ensure high availability and reliability Design, implement, and maintain CI/CD pipelines to automate software delivery processes Supervisory Responsibilities: Technical mentoring of engineers across the organisation Sprint board management Required Skills: Ability to make ...

DevOps Systems Engineer

Hiring Organisation
Adria Solutions
Location
Northwich, Cheshire, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
role in maintaining and improving server environments, supporting application deployments, troubleshooting production issues, and working closely with development and infrastructure teams to deliver reliable, high-performing systems. This role suits someone who is proactive, hands-on, and comfortable working across infrastructure, databases, networking, and application support. Key Responsibilities Install … Server environments Solid understanding of networking concepts including TCP/IP, DNS, DHCP, VPNs, and firewalls Experience supporting and administering Microsoft SQL Server, including high availability environments Proven troubleshooting and problem-solving skills across infrastructure and applications Experience implementing and configuring business applications Ability to work effectively with ...

Trainee Cloud Computing | No experience needed

Hiring Organisation
Qualify Nation Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£28,000 - £40,000 per annum
management Cloud administration Identity and security management Containerisation & Orchestration Docker fundamentals Container deployment Kubernetes administration Container orchestration best practices Cloud Architecture Designing scalable systems High availability environments Load balancing Disaster recovery planning Cloud migration strategies Serverless Computing Event-driven architecture Serverless application deployment Cloud-native solutions DevOps Practices … Cloud Operations Analyst Junior Cloud Engineer Cloud Administrator Infrastructure Engineer DevOps Technician Systems Administrator Platform Support Engineer Technical Operations Specialist Why Study Cloud Computing? High Demand Skills Cloud adoption continues to grow across businesses of all sizes, creating strong demand for skilled professionals. Industry-Relevant Technologies Develop experience with ...

Senior Kotlin Engineer (Event Streaming/Sourcing) - London

Hiring Organisation
Salt
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £1000 per day
cloud-hosted platform team within an investment banking environment. This is a fast-paced, front-office-facing role with a strong emphasis on high-quality engineering, reliability, and collaborative working practices. The role offers exposure to modern engineering practices and the opportunity to work closely with business stakeholders … demanding and high-impact environment. Key Responsibilities Design, develop, test, and maintain backend services using Kotlin Contribute across the full software lifecycle: development, integration, and production support Implement and support event-driven architectures, including event sourcing and event streaming Work within an Agile/XP environment, utilising: Pair programming ...