26 to 50 of 50 High Availability Jobs in the City of London

infrastructure function supporting that growth, with continued investment and a strong pipeline of technical initiatives. The Role You’ll join a lean, high-calibre infrastructure team responsible for the firm’s global production environment. This is a true generalist role , covering servers, networks, security, and virtualisation, with exposure … ideally VMware Familiarity with enterprise storage platforms Minimum 5 years’ experience in infrastructure/systems engineering roles Recent experience within financial services or similar high-availability environments Comfortable operating as a hands-on infrastructure generalist ...

implementing, and maintaining secure, scalable, and highly available AWS-based infrastructure. Key Responsibilities Design, implement, and manage AWS cloud architecture ensuring scalability, resilience, and high availability Automate infrastructure and application provisioning, configuration, and deployment Manage containerised environments (Amazon ECS) and serverless workloads (AWS Lambda) Provide 3rd line support ...

firm’s London head office. The team supports our London headquarters together with offices in Europe, Hong Kong, and mainland China, delivering a secure, high-performance infrastructure platform that underpins business operations across all locations. Reporting to the Head of Infrastructure and Service Delivery, you will lead the Infrastructure … nine specialists and working closely with the Infrastructure Engineering team. You will ensure that networks, platforms, and applications operate reliably, meet performance and availability targets, and evolve to support business growth. You will drive operational excellence and continuous improvement through measurable management, proactive monitoring, and a focus on automation ...

driven Ad-Tech systems. You’ll lead the delivery of cross-service features within a modern cloud platform, making pragmatic architectural choices and setting high standards for engineering quality, reliability, and performance. You’ll play a key role in shaping technical direction, mentoring engineers, and ensuring the systems … based microservices and cloud-native solutions hosted on AWS. Architect and optimise systems: Define service boundaries, data ownership, and failure-recovery patterns for scalable, high-availability systems. Raise engineering quality: Champion best practices for testing, observability, and security. Review critical PRs and guide technical decisions across the team. ...

seeking a Senior Infrastructure Engineer to join a fast-paced Family Office technology team, responsible for delivering secure, resilient, and high-performing enterprise infrastructure for a globally mobile user base. The environment is primarily on-premise, with a strong focus on security and resilience, alongside a controlled adoption … highly valued. Key Responsibilities Manage core on-premise Microsoft technologies and support the phased adoption of Microsoft 365 Administer Exchange Server (PowerShell-based), ensuring high availability across devices Manage VMware vSphere, vSAN, Horizon, and Aria environments Oversee backup, recovery, and storage platforms (Veeam, ExaGrid, enterprise storage) Play ...

balancing short-term impact with long-term vision. Champion best practices in cloud architectures such as 12-factor apps, observability, and others, to meet high availability, performance, security, and cost efficiency needs of our products and platform Lead the adoption of solutions, patterns and strategies that improve efficiency … products and platform, ensuring adherence to organizational and regulatory standards. Foster a culture of continuous improvement, mentoring and leading engineering teams to deliver high-quality solutions and operational excellence. Who we are looking for... You’ll have a solid understanding of software, cloud and platform engineering fundamentals, an ability ...

doing Leading and supervising IT support delivery for the London office and wider EMEA/APAC users Acting as the main escalation point for high-impact and VIP issues Overseeing ticket quality, prioritisation, trends and service performance Owning office IT, hardware procurement, vendors, licensing, and AV systems Working closely … overseeing or supervising support teams (not heavy people management) Strong customer service mindset with confidence handling urgent, business-critical issues Comfortable working in corporate, high-availability environments (financial services experience highly desirable) Calm, collaborative, and approachable — someone who leads by example Why this role Clear exposure to infrastructure ...

total Quant Capital is partnered with a global systematic trading firm seeking a Senior Linux Infrastructure Engineer to join a high-impact platform engineering function. The team owns core infrastructure across datacentres, cloud environments and global offices, supporting both investment activity and large-scale engineering workloads. This role suits … deeply technical engineer who understands large distributed systems, low-level Linux internals, and the realities of running secure, high-availability infrastructure at scale. What you’ll do • Design, operate and improve global Linux-based infrastructure • Engineer secure, reliable systems across datacentres, cloud and hybrid environments • Contribute to networking ...

FinTech Powering the Future of Payments Are you a seasoned individual contributor looking for a step up into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your opportunity to help … bank infrastructure to enable real-time, secure transactions across the globe. 🔍 What You’ll Be Doing You’ll be the focal point of a high-performing engineering team building asynchronous, event-driven systems using modern Java technologies. Design and build scalable, high-availability systems processing millions ...

Telemetry, Monitoring and Performance We are seeking a strong Network Engineer with solid experience in Telemetry, Observability, Monitoring and Performance, ideally gained within a high-availability Site Reliability Engineering environment. You will help shape how telemetry data is collected, processed and turned into meaningful insight, while raising ...

Strong experience with Infrastructure-as-Code. Proficiency with automation tools. Hands-on Linux (Debian-based) systems administration. Production experience in containerised environments. Understanding of high availability patterns. Experience working with CI/CD pipelines. Bonus: deep hardware knowledge, networking fundamentals, familiarity with network equipment, strong automation mindset. ...

tools Experience working with cloud platforms and virtualised infrastructure Good understanding of security controls, firewalls, and data protection principles Exposure to backup, recovery, and high-availability systems Nice to Haves Familiarity with vendor risk or third-party assurance processes Scripting or automation experience (PowerShell, Power Automate, or similar ...

system copies, clients, and transport management (TMS) Perform SAP kernel upgrades, patching, and system upgrades Administer SAP HANA backups, recovery, and performance tuning Support high availability and disaster recovery setups Key Requirements: Expertise with SAP Basis, database, and operating system expertise Experience with system monitoring, troubleshooting, upgrades ...

hands-on expertise in Entrata and strong IT project management skills to deliver operational excellence and drive innovation across enterprise systems. You’ll lead high-performing teams, collaborate with senior stakeholders, and ensure seamless IT service delivery across applications, infrastructure, and user support. Role & Responsibilities: Entrata Application Service Management … Build and lead a dedicated team to support the Entrata platform, ensuring high availability and performance. Oversee the full application lifecycle: deployment, upgrades, incident resolution, and vendor coordination. Define and implement SLAs, KPIs, and continuous improvement initiatives. Align Entrata capabilities with business needs through stakeholder collaboration. End-User ...

design, build and maintain the core data infrastructure powering the investment and risk processes. This is a fully hands-on role within a small, high-calibre team, offering significant impact and ownership. You will develop robust, production-grade ETL pipelines, manage cloud-based and on-prem data environments … from external vendors, trading systems and internal sources. The role also involves implementing automated data validation processes, optimising data quality and performance, and ensuring high availability across all systems. Working closely with the portfolio manager, researchers and engineers, you will enable data-driven decision-making through well-structured ...

Azure | C# | .NET | APIs | Platform Leadership A senior Tech Lead is required to join a well-established e-commerce brand operating at scale, supporting high-throughput, business-critical backend systems. This role sits within a core backend and API-focused team responsible for internal platforms that directly support commercial … expectation of attending roughly once every two weeks. The Role Act as the technical lead for a backend/API team supporting real-time, high-availability systems Own solution design and architecture, ensuring systems are scalable, resilient and well-governed Lead and perform code reviews, setting clear quality ...

Developer to work out of their plush offices in the heart of London's West End. You will be working on the development of high-availability and highly-transactional .NET/C# applications which will be critical to the launch of their new online music shopping channel. ...

tools Experience supporting cloud platforms and virtualised environments Awareness of security best practices, access controls, and data protection principles Exposure to backup, recovery, and high-availability solutions Desirable (but not essential) Scripting or automation experience (e.g. PowerShell, Power Automate) Experience working with third-party vendors and service providers ...

support for application components. Communicate delivery status and milestones to stakeholders. Experience Required Expert-level server-side C# development , with knowledge of low latency, high availability, and asynchronous systems . Experience with C++ and Python (desirable). Familiarity with Interest Rate and FX products (desirable). Strong communication ...

enhancements, including Global App Configuration, deviceTRUST, and authentication services, ensuring secure access across global estates Design and govern the upgrade of Citrix NetScalers, ensuring high availability, resilience, performance optimisation, and minimal service disruption Citrix Specialist - Required Experience 5+ years’ experience working as a Citrix Specialist, with strong hands ...

meet business and security requirements Collaborate with stakeholders and clients to provide clear and detailed documents Troubleshoot, maintain, and upgrade PAM systems to ensure high availability and security Collaborate with IAM teams and stakeholders to align privileged access strategies with enterprise security goals Provide technical guidance, knowledge sharing ...

behavioural change across the organisation. 2. Data Operations & Platform Ownership Lead the design, implementation, and continuous improvement of the enterprise data platform, ensuring high availability, reliability, and scalability. Oversee data ingestion, integration, transformation, and distribution processes supporting investment research, portfolio management, risk analytics, reporting, and client solutions. Build … manage a high-performing data operations function, including data engineering, data quality and stewardship, and business-facing data services. Introduce KPIs and operational metrics to ensure data quality, timeliness, and service excellence. 3. Target Operating Model (TOM) Architect and implement a target operating model for Data & AI, covering organisational ...

ensuring smooth operations, and contributing to the ongoing evolution of their infrastructure. The Linux Infrastructure Engineer will have the opportunity to contribute to a high-performing technology team within a respected financial services organisation. If you are motivated by solving complex challenges and want to make a tangible impact … Infrastructure Engineer: Manage, maintain, and optimise Linux-based systems across production and development environments. Monitor system performance, troubleshoot issues, and implement solutions to ensure high availability. Collaborate with application teams to support deployments and integrations. Automate routine tasks and contribute to infrastructure-as-code initiatives. Implement and maintain security ...

.NET Core, Azure services, and modern DevOps practices. This role combines technical leadership, solution architecture, and hands-on development to build secure, scalable, and high performing applications. Key responsibilities: • Lead a team of backend developers working on .NET Core and Azure-based applications. • Architect, design, and develop microservices … pipelines using Azure DevOps or GitHub Actions. • Implement monitoring, logging, and diagnostics (App Insights, Log Analytics). • Ensure cloud cost optimization, security standards, and high availability. •Collaborate with product owners, architects, and cross-functional teams to translate business requirements into technical solutions. • Review code, mentor developers, and ensure high ...

Monitoring and Maintenance: Monitor and maintain network performance using advanced network monitoring tools. Troubleshoot and resolve network issues promptly to minimize downtime and ensure high availability. Network Assessments and Audits: Conduct comprehensive network assessments and audits to identify potential vulnerabilities, performance bottlenecks, and areas for improvement. Provide detailed reports … Great prospects - once you’ve got to grips with our systems and processes, you’ll have the opportunity to progress with us. Knowledgeable, high-achieving, experienced and fun colleagues A career with room for your personal life in a work environment where everyone knows the value of a healthy ...