1 to 25 of 75 High Availability Jobs in London

team. This is a key role with responsibility for the design, delivery, and ongoing support of a global enterprise network , working in a complex, high-availability environment. You will play a pivotal role in modernising network infrastructure , driving technical improvements, and providing senior-level support across the organisation. … switching, firewall, and SD-WAN solutions Integrate switches, routers, wireless controllers, SDN, load balancers, NAC servers, and cloud platforms Ensure network security, resilience, and high availability across global environments Skills & Experience Required Proven experience designing and implementing networks in a large user or enterprise environment Strong Cisco background ...

team. This is a key role with responsibility for the design, delivery, and ongoing support of a global enterprise network , working in a complex, high-availability environment. You will play a pivotal role in modernising network infrastructure , driving technical improvements, and providing senior-level support across the organisation. … switching, firewall, and SD-WAN solutions Integrate switches, routers, wireless controllers, SDN, load balancers, NAC servers, and cloud platforms Ensure network security, resilience, and high availability across global environments Skills & Experience Required Proven experience designing and implementing networks in a large user or enterprise environment Strong Cisco background ...

networking, and storage solutions. Define and implement best practices for OpenShift cluster setup, including multi-zone and multi-region deployments. Ensure the architecture supports high availability, fault tolerance, and disaster recovery. 2. Migration Design and Optimization Assess existing infrastructure, applications, and workloads to determine migration readiness. Develop detailed … Leverage VMware tools (e.g., vSphere, vCenter, NSX) to optimize OpenShift deployments. Configure and manage Pure Storage solutions (e.g., Flash Array, Flash Blade) to provide high-performance, scalable storage for OpenShift workloads. Ensure compatibility and performance optimization between OpenShift, VMware, and Pure Storage. 4. CI/CD Pipelines and DevOps ...

world-class platform. Day-to-day of the role: Own and manage the cloud infrastructure, ensuring scalability, resilience, and security. Implement and maintain high-availability architectures across critical services and data layers. Design and optimise infrastructure to support AI-powered workloads and data pipelines. Lead cost optimisation initiatives … roles. Strong hands-on experience with AWS, Docker, Kubernetes, and Terraform. Proficiency in CI/CD pipelines and Linux systems administration. Deep understanding of high-availability architecture, networking, load balancing, and distributed systems. Proven experience supporting production SaaS environments. Strong understanding of monitoring and observability tooling. Excellent scripting ...

Linux/AIX systems , ideally gained within a banking or financial services environment . You’ll be responsible for ensuring the stability, performance, and availability of business-critical banking and finance applications, working closely with senior IT stakeholders and wider application teams. Key Responsibilities Administer, maintain, and optimise Oracle … Linux (RHEL/Oracle Linux) and AIX environments hosted on IBM Power 10 infrastructure Perform system upgrades, patching, performance tuning, and capacity planning Support high availability and disaster recovery solutions using Oracle RAC, ASM, RMAN, and Data Guard Collaborate with application and infrastructure teams to resolve complex production ...

container services (ACI, AKS). Proficient in Azure Monitor, Log Analytics, Application Insights, cost management and optimisation, resource tagging strategies, and maintaining platform availability through proactive monitoring and incident response. Infrastructure as Code (Terraform) - Strong working knowledge of Terraform for provisioning and managing Azure infrastructure including writing and maintaining … databases, and file shares, Azure Site Recovery for disaster recovery, automated snapshot policies, geo-redundant storage configurations, and backup vault management. Understanding of high availability architectures using Availability Zones, Azure Load Balancer, Azure Application Gateway, VM Scale Sets, and conducting DR tests to ensure business continuity. Collaboration ...

bottlenecks Develop and maintain platform solutions, automate infrastructure provisioning, configuration, and management tasks using Infrastructure as Code. Monitor, review and tune databases to ensure high availability and performance Collaborate with product engineering teams to design/build fit-for-purpose and observable software Required Skills and Experience: Proven … plus Experience in database management/performance tuning, particularly MSSQL. Employee benefits: Opportunity to be a part of a 30+ year well-established, high-performance SaaS company. Excellent Company Pension scheme and Life Insurance, Excellent holiday allowance. A supportive team environment with emphasis on learning and development opportunities Working ...

Messaging Administrator to join our Messaging team. You will be responsible for managing and supporting our enterprise messaging infrastructure built on Solace PubSub+, ensuring high availability, optimal performance, and reliability across production and non-production environments. This includes working on incident response, capacity planning, WAN optimization, and system … cloud-native Solace deployments. Why Join Us? Join a multi-discipline team, delivering advanced Messaging APIs, developing tools, administering , supporting low latency, high throughput messaging system for prices, orders, trades, and mission critical applications. Exciting opportunity to work with a wide array of technologies. Chance to further develop your ...

business Automate infrastructure provisioning and management using Infrastructure as Code (IaC) and CI/CD DevSecOps tools Monitor and troubleshoot cloud environments ensuring high availability and performance Working with Information Security, assist in the implementation and management of security best practices, including access control, data encryption and threat ...

infrastructure as code using tools like Terraform, ensuring consistency and reproducibility across environments. Monitor and troubleshoot system performance, identifying and resolving issues to ensure high availability and optimal performance. Collaborate with cross-functional teams to identify opportunities for automation, streamlining workflows, and improving efficiency. Stay up-to-date ...

about clean code, cloud-native systems, and building technology that makes a real impact. This is a unique opportunity to work in an agile, high-ownership engineering culture. What You'll Be Doing: Build and scale backend services using Java and Spring Boot Shape a modern microservices architecture … high-availability platform Deploy and manage services in AWS with Kubernetes (EKS) Design, implement, and own features end-to-end from discovery to production support Advocate for clean code, automated testing, and CI/CD best practices Mentor other engineers and contribute to a culture of knowledge-sharing ...

transform decision-making and customer experiences. We're seeking a skilled GCP DevOps Engineer to architect and maintain cloud-native infrastructure that supports high-performance AI systems. This is a hands-on technical role with strategic impact across infrastructure, automation, and security. Key Responsibilities Infrastructure & Cloud Engineering Design, build … adoption of DevOps best practices across engineering teams. Containerization & Orchestration Build and manage containerized applications using Docker and orchestrate them with Kubernetes . Ensure high availability and scalability of AI services through robust orchestration strategies. Monitoring & Reliability Set up monitoring and alerting systems using Cloud Monitoring , Cloud Logging ...

Jenkins. Automating infrastructure with Terraform (or equivalent IaC tools). Implementing monitoring, logging, and alerting using Stackdriver/Cloud Monitoring. Ensuring security, scalability, and high availability across cloud services. Collaborating with Developers, SREs, and Architects to deliver robust solutions. Driving cost optimisation and best practices across ...

Technical CEO and other Full Stack Engineers to architect and scale our platform as we grow rapidly. You will play a pivotal role in high-impact projects such as optimizing performance for hundreds of thousands of users, designing scalable system architecture, mentoring junior engineers, and making key technical decisions … that shape our product. This is a high-impact opportunity for someone ready to take significant ownership, solve complex challenges at scale, and help power the next generation of educational technology. Role Responsibilities Architect and build scalable features across our web app (Next.js) and mobile app (React Native) Design ...

Software Engineer - PostGres - Kubernetes - Kafka - TDD - 6-Month Contract - Hybrid (2 days on site, London) - Day Rate: Up to £650 (Inside IR35) Join a high-performing engineering team working on large-scale, high-availability systems used by millions. This role offers the chance to build and enhance … clean, testable code and following TDD principles with a strong focus on unit testing Working closely with DevOps, Product, and QA teams to deliver high-quality solutions Deploying and supporting services in AWS with tools such as Lambda, ECS, S3, and CloudFormation, along with Kubernetes for container orchestration What ...

understanding of CI/CD, IaC (Terraform/CloudFormation), containers (Docker/Kubernetes), and modern DevOps practices. Experience with observability, security by design, and high availability systems. Excellent communication and stakeholder management skills. This role directly influences the long term architecture, resilience, and scalability of a major financial ...

transition from traditional on-premises infrastructure to Microsoft Azure. Responsibilities: - Leadership & Governance: Oversee all aspects of the firm's IT infrastructure to ensure high availability, performance, and resilience of services. This includes managing servers (physical and virtual), networks, storage, and cloud resources that support critical IP applications. - Cloud ...

understanding of CI/CD, IaC (Terraform/CloudFormation), containers (Docker/Kubernetes), and modern DevOps practices. Experience with observability, security‑by‑design, and high‑availability systems. Excellent communication and stakeholder‑management skills. This role directly influences the long‑term architecture, resilience, and scalability of a major financial ...

Databricks , and related Azure services. Build ETL/ELT processes to transform raw data into structured, analytics-ready formats. Optimise pipeline performance and ensure high availability of data services. Infrastructure & Architecture Architect and deploy scalable data lake solutions using Azure Data Lake Storage . Implement governance and security ...

Databricks, and related Azure services. Build ETL/ELT processes to transform raw data into structured, analytics-ready formats. Optimise pipeline performance and ensure high availability of data services. Infrastructure & Architecture Architect and deploy scalable data lake solutions using Azure Data Lake Storage. Implement governance and security measures ...

Microsoft SQL Database Administrator to take ownership of a large and complex SQL Server estate. This is a hands-on role where youll ensure high availability, performance, and security across multiple environments, while proactively monitoring and resolving issues before they impact the business. If youre passionate about performance ...

authoring, deployment strategies, custom charts, container registries Ingress controllers, API gateways, service mesh, and traffic policy enforcement Observability (Prometheus, Grafana), log pipelines, distributed tracing High availability, cluster upgrades, autoscaling strategy, performance tuning Lead advanced troubleshooting (pods, networking, DNS, controllers, storage, ingress). 5. Azure API Management (APIM … check frameworks, and rollback strategies. Implement API analytics, distributed tracing, alerts, performance tuning, and troubleshooting. 6. Reliability Engineering & Platform Operations Lead root-cause analysis, high-severity incident resolution, and resilience improvements. Ensure uptime, performance, and reliability of APIs deployed in AKS and exposed via APIM. Define SLOs, latency budgets ...

London-based environment. This is a hands-on, technically led role where the Network and Security Specialist will be responsible for protecting systems, ensuring high availability, and strengthening security posture while supporting day-to-day operations and future growth. Key Responsibilities: • Design, implement, and maintain secure network … incidents using SIEM tools, Sophos MDR, and threat-hunting techniques. • Configure and manage firewalls, VPNs, IDS/IPS, web and email security solutions. • Maintain high patching and vulnerability remediation standards, including CVE management. • Coordinate annual third-party penetration testing and lead remediation based on risk and CVSS scoring. • Investigate ...

London-based environment. This is a hands-on, technically led role where the Network and Security Specialist will be responsible for protecting systems, ensuring high availability, and strengthening security posture while supporting day-to-day operations and future growth. Key Responsibilities: • Design, implement, and maintain secure network … incidents using SIEM tools, Sophos MDR, and threat-hunting techniques.• Configure and manage firewalls, VPNs, IDS/IPS, web and email security solutions.• Maintain high patching and vulnerability remediation standards, including CVE management.• Coordinate annual third-party penetration testing and lead remediation based on risk and CVSS scoring.• Investigate ...

Senior Cloud Infrastructure Engineer Key Responsibilities: Ensure the firms technology environment is continually evolving and is configured in a way that provides a stable, high performing and secure environment Design, implement, and continually manage Azure cloud infrastructure to ensure scalability, security, and high availability Administer and optimize ...