1 to 25 of 31 High Availability Jobs in the City of London

days per week on site Job Summary The SQL DBA Engineer is responsible for designing, managing, and optimizing SQL database environments to ensure performance, availability, scalability, and security across business-critical systems. The role combines database architecture, administration, performance tuning, governance, backup and recovery planning, and support for application … database environments for performance, reliability, and scalability Lead database installation, configuration, patching, upgrades, and migration activities Define and implement backup, recovery, disaster recovery, and high-availability strategies Troubleshoot database issues, performance bottlenecks, and system failures Support capacity planning, database health checks, and performance tuning initiatives Ensure database security ...

that underpin large-scale, mission-critical enterprise applications hosted within AWS cloud environments. Initially, you will lead an intensive proof-of-value phase, evaluating high availability and disaster recovery (HA/DR) patterns for SQL Server on AWS. Following successful completion, the role will transition into a longer … complex enterprise environment. Key Responsibilities Design and own SQL Server architecture supporting business-critical enterprise platforms hosted on AWS. Develop and validate High Availability and Disaster Recovery (HA/DR) strategies. Design and implement SQL Server Always On Availability Groups, Failover Cluster Instances (FCI), and other resilience ...

critical data services remain resilient, scalable and fit for future needs. What You'll Actually Do Database Engineering & Operations (40%) Own the operational health, availability and performance of SQL Server and Azure SQL platforms Provision, configure and maintain production and non-production database environments Plan and execute upgrades, patching … Resilience, Recovery & Reliability (25%) Design, implement and validate backup, recovery and disaster recovery capabilities Own restore testing and recovery readiness across critical platforms Support high availability solutions and service resilience initiatives Implement proactive monitoring, alerting and observability for database services Participate in incident response, problem management and post ...

Oracle Apps DBA to manage, maintain, and optimise mission-critical Oracle E-Business Suite (EBS R12) environments and underlying databases. In this hands-on, high-impact technical role, you will take ownership of cross-layer troubleshooting spanning application, database, operating systems, and infrastructure. You will play a key part … maintaining system performance, security, and high availability, while actively contributing to major cloud migration initiatives (OCI/Azure). Key responsibilities EBS & Database Lifecycle: Maintain, update, copy, and refresh core Oracle systems across test, development, and live 24/7 production environments. Core Apps Administration: Manage key system ...

fostering growth and innovation in a dynamic environment. As a Lead Technical Program Manager in Corporate Technology, you will lead the delivery of complex, high-impact technology programs supporting electronic trading across multi-asset, low-latency market environments (e.g., equities, FX, rates, credit, listed derivatives). You will apply … innovation, disciplined delivery, and continuous improvement. Job responsibilities Develop and execute comprehensive program plans integrating technical requirements for electronic trading platforms (low latency, high throughput, high availability). Lead cross-functional teams to define program scope, objectives, milestones, and deliverables aligned with trading/business outcomes. Drive ...

handling. * Network and application platforms such as load balancers, reverse proxies, firewalls, web servers and databases. * HSMs, KMS, secrets-management platforms & privileged access controls. * High availability, disaster recovery, monitoring, logging & IT service-management integration. Qualifications * Essential or strongly preferred: relevant vendor implementation certification for the selected CLM platform … remediation priorities. * Strong written and verbal communication, including technical workshops and senior stakeholder updates. * Good planning, prioritisation and dependency management across multiple onboarding waves. * High-quality technical documentation and knowledge transfer. ...

will design AWS networking solutions using technologies such as VPCs, Transit Gateway, Direct Connect, VPNs and Route 53, while ensuring infrastructure is built for high availability, failover and disaster recovery. You will also work across hybrid environments, supporting secure connectivity between AWS, Azure and on-premises infrastructure ...

passionate about building and operating highly scalable database platforms? Have you administered and optimised mission-critical PostgreSQL environments in cloud-first organisations, ensuring performance, availability and resilience at scale? Can you demonstrate broad technical knowledge across Platform Engineering, DevOps and Infrastructure, alongside experience with automation and scripting using Python … Engineering, Platform Engineering, DevOps or Infrastructure roles with a strong focus on database administration. You'll possess deep expertise in PostgreSQL , including performance tuning, high availability, replication and operational support within Azure-based environments. You will have strong Linux systems administration skills, experience with database automation and infrastructure ...

Terraform Integrate security, policy checks, and guardrails into module and pipeline workflows, partnering with security, risk, and compliance on exceptions where needed Produce high-quality module documentation, examples, and adoption guidance that reduce friction for internal customers Partner with application teams to translate requirements into reusable module patterns … registries Familiarity with containers and orchestration (Docker/Kubernetes) where modules integrate with application platforms Practical operational knowledge for database platforms (backup/restore, high availability/disaster recovery, performance tuning basics, patching, and maintenance windows) Experience with Go for platform tooling #J-18808-Ljbffr ...

. Manage environment-related incidents and root cause analysis. Maintain environment documentation, topology diagrams, and runbooks. Engage with Release Managers to align environment availability with deployment schedules. Ensure compliance with security and governance policies. Coordinates and governs DR testing to validate recoverability, RTO/RPO compliance, and resilience across … environments, ensuring high availability and alignment with business continuity objectives. Design monitoring and observability frameworks to accelerate root cause analysis and reduce Mean-Time-to-Recovery (MTTR) Essential skills Proficiency in DevOps tools (Terraform, Ansible, Jenkins, GitHub Actions). Solid understanding of CI/CD pipelines and release ...

providers, supporting the infrastructure and services that underpin our market data capabilities. This is a hands-on engineering role with a strong focus on availability, performance, automation and continuous improvement. You will have the opportunity to solve complex technical challenges, enhance the scalability and resilience of our market data … normalise and distribute market data from exchanges, vendors, internal platforms and third-party providers. Troubleshoot market data, application and infrastructure issues to maintain service availability and data integrity. Optimise market data platforms and pipelines for low-latency, high-throughput and scalable performance. Lead technical planning for platform upgrades ...

this role, you will act as the principal L3 technical escalation authority and operational lead across our secure network estate. You will drive high‐availability network operations, lead major incident resolution, enforce rigorous security posture, and champion compliance within BPSS-governed and enterprise‐scale environments. Key Responsibilities Technical … 802.1X authentication systems. Security Clearance: Must hold active BPSS clearance or be fully eligible to undergo BPSS pre‐employment screening. Desirable Prior experience in high-level or low-level Network Architecture & Design. Enterprise Cloud Networking experience across AWS, Azure, or GCP (e.g., Transit Gateways, DirectConnect/ExpressRoute, Virtual Appliances ...

Responsibilities: Provide end-to-end production support for Fixed Income trading platforms (Rates, Credit, FX, Bonds, Derivatives). Monitor and maintain system health, ensuring high availability and low latency of critical trading applications. Support and enhance monitoring capabilities using ITRS Geneos, initially within FICC and expanding to other ...

strong emphasis on Extreme Programming (XP) practices, including mob programming, test first development and continuous refactoring working closely as a team to maintain a high standard of code quality and system reliability. What you'll do: Design, develop and maintain scalable backend services using Kotlin, delivering high-quality … Cloud SQL, Memorystore Key Management Terraform CI/CD and SDLC experience in a regulated/enterprise environment. Comfortable working in production systems with high availability and correctness requirements. Experience with Typescript and/or React (desirable). Proven DevOps Engineer experience (desirable). Deutsche Bank's Values ...

trading platform. The organisation operates a complex global technology estate, with network infrastructure connecting data centres, offices, cloud environments and critical trading services. Network availability, resilience, security and low-latency performance are fundamental to its operations. This is a hands-on senior engineering position offering significant technical ownership across … critical network infrastructure. Strong technical knowledge of enterprise and data centre networking. Hands-on understanding of: BGP, OSPF , Routing and switching Network resilience and high availability Network troubleshooting and incident resolution Ability to manage network changes within highly available production environments. Desirable Experience Experience with AWS networking . ...

trading platform. The organisation operates a complex global technology estate, with network infrastructure connecting data centres, offices, cloud environments and critical trading services. Network availability, resilience, security and low-latency performance are fundamental to its operations. This is a hands-on senior engineering position offering significant technical ownership across … critical network infrastructure. Strong technical knowledge of enterprise and data centre networking. Hands-on understanding of: BGP, OSPF , Routing and switching Network resilience and high availability Network troubleshooting and incident resolution Ability to manage network changes within highly available production environments. Desirable Experience Experience with AWS networking . ...

tools such as React Query and Tailwind Contribute to infrastructure, system architecture and cloud-native engineering decisions Work on distributed systems, real-time processing, high availability and system performance Collaborate effectively with AI, product and infrastructure teams to deliver reliable features Support API testing and maintain high ...

environments Design and manage backup and recovery using RMAN, Flashback, Data Pump and established migration methodologies Administer Oracle ASM and Data Guard to support high availability and disaster recovery Manage multi-tenant architecture, including PDB and CDB design and administration Provide L3 support across Oracle Database and Exadata ...

support of Microsoft 365 services including Exchange Online, Teams, OneDrive, and SharePoint Online. Design, implement, and maintain messaging and collaboration solutions to ensure high availability and performance. Manage mail flow, email security, retention, archiving, and compliance policies. Endpoint & Mobility Management Manage and support Microsoft Intune and Mobile Device ...

throughout the software development lifecycle. This role works closely with engineering, QA, and release teams to ensure environments are fit for purpose and support high-quality delivery. Responsibilities Lead the setup, configuration, and maintenance of development and test environments. Act as the technical point of contact for environment-related … environment-related best practices. Executes DR testing, validating system recovery, integrations, and service resilience post-fail over to ensure continuity and adherence to high-availability and recovery objectives. implements monitoring and observability frameworks, using CNCF and commercial tooling, to accelerate root cause analysis and reduce Mean-Time ...

stacks such as Grafana, Prometheus, Open Telemetry, ELK, Splunk, or similar platforms. Deep understanding of SLIs, SLOs, error budgets, and telemetry best practices in high‐availability environments. Excellent understanding of the process and workflow from Development, UAT, and deployment to Production. Familiarity with AI/ML‐driven triage … across hybrid platforms (on‐prem, cloud, containers). Proven ability to manage complex technical issues, prioritise tasks, and deliver results in a fast‐paced, high‐pressure environment. Excellent communication skills, with the ability to effectively interact with clients, developers, infrastructure teams, the Technology Centre of Excellence, and other stakeholders. ...

Network & Security Engineer to join our Technology team. This role plays a key part in designing, building and supporting our global network infrastructure, ensuring high performance, resilience and security across on-premise and cloud environments. You will work across both project delivery and business-as-usual operations, supporting critical … cloud network infrastructure Deliver network engineering and design for new initiatives, alongside ongoing BAU growth and optimisation Monitor network performance, capacity and availability, providing proactive support and troubleshooting Implement new network services in line with internal policies, standards and security requirements Identify, advise on and remediate network and security ...

Managers Ltd. in London is seeking a Senior Network Engineer for a 6-month hybrid contract to join a global engineering team supporting a high-availability trading platform. You will own day-to-day network operations, incident management and changes across data centres, offices, and cloud environments, with ...

enterprise Citrix Cloud platform. You will lead the transition from legacy VDI to a modern, Azure-integrated multisession environment, ensuring lightning-fast performance and high availability for a global workforce. Core Responsibilities Design and architect the end-to-end Citrix Cloud and Azure VDI infrastructure (HLD/ ...

role focuses on enterprise routing, multi-vendor firewalls, SDN, and hybrid cloud connectivity. You will serve as the L3 escalation authority and drive high-availability network operations in BPSS-governed environments. Key responsibilities include incident management, vulnerability monitoring, and governance with CAB. The ideal candidate has 8+ years ...