26 to 50 of 95 High Availability Jobs in London

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 ...

Schema design and directory structuring Secure authentication integration (LDAPS, certificates, RBAC mapping) Kubernetes authentication via LDAP Identity federation patterns across CI/CD tooling High availability and replication strategies Troubleshooting directory performance and sync issues Jenkins (CI/CD Architecture & Engineering) Pipeline-as-code (Groovy) Shared libraries ...

play a key part in maintaining, optimising, and scaling critical systems. You’ll collaborate closely with development and operations teams to ensure high availability, performance, and security across the environment. Key Responsibilities Manage and maintain server infrastructure (Linux/Windows environments) Support and optimise cloud platforms, particularly … Implement and maintain CI/CD pipelines Monitor system performance, availability, and security Troubleshoot complex infrastructure and networking issues Automate routine tasks using scripting and command-line tools Support deployments and environment configuration Key Skills & Experience Proven experience as a System Administrator or similar role Strong knowledge ...

prospective customers (new logos). Engage with stakeholders from C-level executives to technical engineering teams , translating complex technical and business requirements into high-level and detailed technical architectures. Provide expert consultancy on network strategy, transformation roadmaps, best practices, and emerging technologies. Build strong, long-term relationships that support … security technologies. Ensure all designs are scalable, resilient, secure, and aligned to customer requirements, technical strategy, and industry best practices Lead creation of high-quality architectural documentation, including HLA, HLD, LLD, standards, and design patterns. Ensure designs align with industry best practices, compliance requirements, and customer governance processes. ...

responsible for supporting approximately 4000 Linux systems that underpin critical business applications. They will deliver solutions that meet stringent security, compliance, and availability requirements while troubleshooting complex issues and driving operational excellence. What you'll do Lead and mentor a team of Linux engineers, fostering technical growth and collaboration. … infrastructure and related services. Develop and enforce operating procedures for secure and efficient system management. Design and deliver solutions that meet security, compliance, and high availability standards. Drive automation initiatives using Ansible and other tools to streamline operations. Oversee patching, hardening, and configuration management in line with best ...

/CD pipelines across backend, frontend, and data services. Implement observability across logging, metrics, tracing, alerting, etc. Monitor and optimise cloud costs while maintaining high availability and performance. Act as an advocate for operational excellence across the engineering organisation. Your Skills and Experience Strong commercial experience designing … Bash. Experience supporting reliability, compliance, and cost efficiency in fast-growing environments. What They Offer Salary up to £160,000 plus meaningful equity. A high-impact role with ownership over core platform infrastructure. Significant technical and personal growth in a fast-moving AI environment. Hybrid working with four days ...

Cloud Platform Engineering Lead A high performing London Market Syndicate is looking for a Cloud Platform Engineering Lead to join them on a permanent basis. This is an excellent business to join as they are consistent ranked in the top quartile for performance across the market. The Role This … security controls, policies, and technical guardrails in line with standards such as NIST and ISO. Lead cloud cost management and FinOps practices, ensuring performance, availability, and spend are optimised and transparent. Act as the senior technical escalation point for cloud security incidents and major outages, ensuring high availability ...

cloud environments. You'll take ownership of escalated incidents, help resolve major issues, and work closely with both project and support teams to maintain high availability and integrity of critical services. What You'll Be Doing Diagnosing and resolving complex infrastructure incidents escalated from the Service Desk Collaborating ...

millions of customers. This role will focus on engineering leadership, modern architecture, cloud-native delivery and driving best practice across multiple teams within a high-scale digital environment. Responsibilities for the Principal .NET Engineer: Define and evolve engineering strategy, standards and best practices across your domain Lead technical direction … across multiple engineering teams and programmes Design and oversee delivery of large-scale, high-availability systems using modern Microsoft technologies Provide expert guidance on technical risk, architecture decisions and prioritisation Support Staff Engineers and delivery teams through hands-on technical leadership Drive adoption of DevOps, CI/ ...

customer outcomes. Lead sophisticated incident management, post-incident analysis, and extended remediation planning. Architecture & Resilience Review and influence system architecture to improve scalability, availability, and failure isolation. Design strategies for high availability, graceful degradation, and disaster recovery across multi-region environments. Quantify tradeoffs between performance, cost … your CV as a Word document. If your application is successful, you will be contacted within 7 days. We regret that due to the high volume of applications we receive we cannot provide feedback on individual CVs. Please note that we can only consider candidates who are eligible ...

DynamoDB): data modelling and operational tuning Modern analytics/lakehouse concepts (e.g., Fabric/Synapse/Databricks), pipelines, and semantic models Backup/restore, high availability, and disaster recovery (design, testing, and execution) SQL replication experience (including migration to AVG) Monitoring, diagnostics, and incident management (Azure Monitor ...

Design, implement, and maintain secure and efficient LAN and WAN infrastructure across multiple sites. Manage internet connectivity and work with service providers to ensure high availability and performance. Configure, monitor, and maintain enterprise-grade firewalls to protect internal assets and enforce security policies. Design and manage Azure networking ...

across the institution. The successful candidate will contribute to the migration from Cisco to Extreme Networks infrastructure, with a strong focus on delivering robust, high-performing wired and wireless services that meet the needs of students, faculty, and staff. Key Responsibilities Support the design and implementation of network infrastructure … optimisation activities. Execute migration activities, including staging, deployment, testing, and validation. Troubleshoot and resolve complex network issues across LAN, WAN, and WLAN. Ensure high availability and performance of wireless networks, particularly in high-density environments (e.g., lecture halls, student accommodation). Assist with the production and maintenance ...

across the institution. The successful candidate will contribute to the migration from Cisco to Extreme Networks infrastructure, with a strong focus on delivering robust, high-performing wired and wireless services that meet the needs of students, faculty, and staff. Key Responsibilities Support the design and implementation of network infrastructure … optimisation activities. Execute migration activities, including staging, deployment, testing, and validation. Troubleshoot and resolve complex network issues across LAN, WAN, and WLAN. Ensure high availability and performance of wireless networks, particularly in high-density environments (e.g., lecture halls, student accommodation). Assist with the production and maintenance ...

week in London Victoria About the Role We are seeking an experienced AWS DevOps Engineer for an inside IR35 contract role supporting a secure, high-profile programme. The role is hybrid, and the client operates their own payroll , covering employer National Insurance , so contractors can work on a straightforward … Responsibilities Design, build, and maintain AWS cloud infrastructure using DevOps best practices. Implement and support CI/CD pipelines and infrastructure as code. Ensure high availability, security, and performance across AWS environments. Collaborate closely with engineering, security, and delivery teams. Support automation, monitoring, and continuous improvement activities. Skills ...

Cloud Platform Lead | London | Hybrid (3 days in the office) |Permanent Build the cloud platform that others depend on. We’re partnered with a high-performing, London-based Insurer operating at scale in a highly regulated environment. The organisation is investing heavily in its cloud capability … making You’ll act as the technical authority for cloud, owning standards, guardrails and outcomes, while steering a trusted cloud services partner to deliver high-quality BAU and project work. What you’ll be doing Owning the cloud platform architecture (Azure-first, AWS exposure) Designing and evolving shared platform ...

driven architecture, and RTF networking. Collaborate with security teams to ensure policy enforcement, encryption, identity, and SC-compliant design. Oversee NFRs including performance, scaling, high availability, disaster recovery, and observability. Guide developers and DevOps engineers through build, test, deployment, and operational handover. Ensure alignment with enterprise platforms including … effort estimation, planning, stakeholder engagement, and technical risk management. Contribute to the evolution of C4EE playbooks, templates, governance artefacts, and reusable assets. Key Deliverables High-level and low-level design documents API specifications and sequence diagrams Architecture Decision Records (ADRs) Reusable patterns, templates, and standards Architecture review outputs ...

Server WinForms desktop applications Azure Kafka Automated testing frameworks Legacy platform modernisation Nice to Haves Futures, options, or crypto markets Python DevOps tooling High-availability systems Large-scale refactoring work Containerisation (Docker) Why Join/Projects This is one of those environments where the gap between engineering … outcome of what you build, and you’ll have a say in how things are done. Access to leadership is direct, and expectations are high, both technically and academically. Employee Benefits Bonus up to 100% of base salary Highly collaborative, front-office environment Direct access to traders and senior ...

managed services, automated and auditable deployment pipelines, secrets management Nice to Have o Financial services, trading, or capital markets - operational security in a regulated, high-availability, zero-downtime-tolerance environment o Zero-trust architecture: BeyondCorp, Zscaler, or equivalent; conditional access policy design and implementation o DDoS mitigation ...

opportunities preferred. Experience working with a cloud service provider (AWS, Azure, or GCP), preference for cloud data skills. Experience in large-scale, secure, and high-availability solutions with multi–AZ Cloud Architecture. Significant experience with cloud modernization and migration solutioning: Discovery, Assessment, Roadmap, SOW Creation, Migration Planning ...

managed services, automated and auditable deployment pipelines, secrets management Nice to Have o Financial services, trading, or capital markets - operational security in a regulated, high-availability, zero-downtime-tolerance environment o Zero-trust architecture: BeyondCorp, Zscaler, or equivalent; conditional access policy design and implementation o DDoS mitigation ...

based frontend systems , primarily utilizing React to craft intuitive and highly functional user interfaces. Productize and enhance our Kubernetes-based cloud platform to ensure high-availability, scalability, and cost-efficient ML workflows. Work proficiently across the entire stack to develop and integrate new features related to model versioning ...

platforms across the business. This role blends deep technical UC engineering capability with hands-on AV and meeting support, ensuring reliable, secure, and high-quality collaboration experiences for end users, executives, and trading environments. The successful candidate will support and evolve platforms including Cisco CUCM, WebEx (Dedicated Instance), Microsoft … customer-focused mindset, operating within a global, distributed team. Key Responsibilities Unified Communications Engineering Design, configure, support, and enhance the global UC environment, ensuring high availability, performance, and security. Administer and troubleshoot Cisco Unified Communications Manager (CUCM), including dial plans, call routing, SIP integrations, upgrades, and incident resolution. ...

updates, and application patches under controlled processes. · Work closely with development teams to support bug fixes, enhancements, and releases. · Monitor application health, performance, and availability using monitoring and alerting tools. · Execute database queries and data corrections to support application functionality. · Support deployments, version upgrades, and environment changes for .NET … supporting C# applications. · Familiarity with scripting or automation for support activities. · Understanding of application security, authentication, and authorization concepts. · Experience supporting customer-facing or high-availability applications. Rewards & Benefits TCS is consistently voted a Top Employer in the TCS is consistently voted a Top Employer ...

Lake and medallion architecture (bronze, silver, gold) Optimise performance, data quality, and cost efficiency across pipelines and clusters Set up monitoring, alerting, and ensure high availability of data services Collaborate with data teams and stakeholders to deliver business-focused solutions Essential Skills & Experience Strong hands-on experience with ...