126 to 150 of 486 High Availability Jobs in London

optimization of our PostgreSQL databases hosted on the AWS Cloud platform. The successful candidate will collaborate with cross-functional teams to ensure database reliability, availability, and performance, while also contributing to the overall architecture and strategy of our cloud‐based database solution. 1. Database Design and Architecture: Collaborate with … considering factors such as instance sizing, storage, and security. Implement and manage replication, clustering, and backup/recovery strategies to ensure high availability and disaster recovery. 3. Performance Monitoring and Optimization: Monitor database performance, proactively identifying and resolving performance bottlenecks, slow queries, and other issues affecting system responsiveness. ...

services that are resilient, scalable, and well‐understood. You will contribute to cloud infrastructure and application reliability across AWS and Azure, with attention to availability, performance, and sustainable cost practices. We apply Site Reliability Engineering principles to support consistent, customer‐focused outcomes. This includes developing and refining SLIs, SLOs … have experience working with CI/CD tooling (such as GitLab) and infrastructure‐as‐code solutions like Terraform. You understand cloud‐native networking and high‐availability design, and you are comfortable working in Agile or Scrum‐based teams. Most importantly, you enjoy working collaboratively, communicating clearly, and learning ...

solid understanding of networking, storage, and automation within enterprise-scale environments. Key Responsibilities Design, implement, and manage VMware-based virtual infrastructure, ensuring high availability, performance, and scalability. Administer VMware vSphere, ESXi hosts, vCenter, and associated tools to maintain a stable and secure environment. Manage and optimize virtual networking ...

standards and modern SDLC practises are maintained Is required to be a technical authority for Kubernetes Understand security, risk and compliance frameworks, disaster recovery, high availability architectures, hardware, operating systems, and networking connectivity Collaborates with internal teams (including Product Owners) Provide solutions/guidance on Cloud budget management ...

management, and preferred work experience in batch processing. As a Senior Java Developer, you will play a crucial role in designing, developing, and maintaining high-performance applications that meet our business needs. Key Responsibilities: Design and Development: Design and development of robust, scalable, and efficient Java applications. AWS Integration … Utilize AWS services to build and deploy cloud-based solutions, ensuring high availability and scalability. Database Management: Design, implement, and maintain database schemas, write complex SQL queries, and optimize database performance. Batch Processing: Develop and manage batch processing systems to handle large volumes of data efficiently. Code Quality ...

underlying data platform (Azure Synapse, Data Lake, Microsoft Fabric) that feeds reporting and analytics Monitor, troubleshoot and resolve data pipeline and platform issues, ensuring high availability and reliability for reporting and analytics consumers Work with the wider Data Engineering team on data architecture decisions, flagging opportunities to improve … reporting performance, cost efficiency and data quality Design and implement scalable, high-performance data models to support analytics and reporting use cases Implement and enforce data quality frameworks, validation checks and governance standards across pipelines and reporting datasets, in line with secrity and compliance policies Support the development ...

trade across global markets, unconstrained by external pressures. This opportunity is ideal for an End-user Support or Trade Support Engineer who thrives in high-performance environments, understands the demands of a trading floor, and is excited by the pace and complexity of modern market infrastructure. The Opportunity: Joining … developers—deploying, managing, and innovating around the systems that power one of the most agile trading operations in the industry. Key Responsibilities: Delivering high-touch technical support to front-office and back-office users in a real-time, fast-paced trading environmentDeploying, configuring, and supporting complex trading platforms ...

world‐class, 99.9% uptime network and internet access, and support Ripple’s accelerated growth through new office network design and commissioning. We want a high‐impact individual contributor who defines Ripple’s standard for global connectivity, and approaches networking from a lens of continuous improvement and an end‐user … experience‐first mentality. This position blends high‐level planning with practical senior engineering to support a workforce spread around the world. Key Responsibilities Architectural Leadership: Define and maintain Ripple Office networking standards, promoting continuous improvement, agile scalability, and a world‐class end‐user experience. Act as the final technical ...

world class, 99.9% uptime network and internet access, and support Ripple’s accelerated growth through new office network design and commissioning. We want a high-impact individual contributor who defines Ripple’s standard for global connectivity, and approaches networking from a lens of continuous improvement and an end‐user … experience‐first mentality. This position blends high‐level planning with practical senior engineering to support a workforce spread around the world. Key Responsibilities Architectural Leadership: Define and maintain Ripple Office networking standards, in a way that promotes continuous improvement, agile scalability, and a world class end user experience. ...

alerting solutions Develop and support automation frameworks Manage CI/CD pipelines Provide technical support to development teams to enable the efficient delivery of high‐quality services and applications Build and maintain Kubernetes clusters on‐prem and in cloud Access and IAM management in Google Cloud, Looker, BigQuery, etc. … experience with on‐prem sharded MongoDB cluster Extensive experience building, managing, and scaling Kubernetes clusters (GKE, manual Kubernetes, etc.) Extensive experience designing and building high‐availability, resilient infrastructure Experience setting up and maintaining monitoring, alerting, log collection (rsyslog, Grafana, Prometheus, ELK) Automation and scripting experience (Terraform, Packer, Ansible ...

documenting significant decisions as ADRs. Operational SME: Act as the Subject Matter Expert for numerous team-owned services, providing advanced operational support and ensuring high availability for our global payment systems. Evangelise Best Practices: Produce exemplary code and documentation that inspires others. You will be responsible for spreading … explore and implement AI-driven automation to enhance infrastructure efficiency and team productivity. Additional InformationBring all of you to workWe create the conditions for high performers to thrive, through real ownership, fewer blockers, and work that makes a difference from day one. Here, you'll move fast, take ...

documenting significant decisions as ADRs. Operational SME: Act as the Subject Matter Expert for numerous team-owned services, providing advanced operational support and ensuring high availability for our global payment systems. Evangelise Best Practices: Produce exemplary code and documentation that inspires others. You will be responsible for spreading … implement AI-driven automation to enhance infrastructure efficiency and team productivity. Additional Information Bring all of you to work We create the conditions for high performers to thrive, through real ownership, fewer blockers, and work that makes a difference from day one. Here, you’ll move fast, take ...

senior engineers building the core platform that powers UiPath's large‐scale AI and Document Understanding products. Our world is one of distributed systems, high‐throughput model serving, and complex asynchronous training workflows. We're looking for a systems‐level engineer who wants to work on the gnarly, foundational … distributed job queue that orchestrates it all. Solve hard concurrency, performance, and distributed systems problems to ensure our platform is bulletproof for high‐volume production workloads. Work directly with product and ML science teams to understand their needs and build the scalable infrastructure required to bring their models ...

Technical Lead Salary: £90-120K work model: Hybrid Were looking for a Python Technical Lead to drive the architecture, development, and delivery of high-performance financial systems. Youll lead a team of engineers building scalable platforms that power real-time transactions, risk analytics, and next-generation digital financial … build robust, secure, and scalable microservices using Python (FastAPI, Django, Flask). System Architecture Lead the design of distributed systems, event-driven architectures, and high-availability platforms. Team Mentorship Coach engineers, conduct code reviews, and foster a culture of continuous improvement. FinTech Platform Development Build systems for payments ...

isolationo Collaborate with data engineers to optimize deployment patterns for Snowflake workloads Monitoring & Reliabilityo Implement monitoring, logging, and alerting across the data platformo Ensure high availability and performance of pipelines and integrationso Troubleshoot production issues and drive root cause analysis Security & Complianceo Embed security best practices across infrastructure ...

Terraform, Helm) and GitOps practices Knowledge of database systems (relational databases, in-memory data stores) including HA, replication, backup strategies, and sizing Experience designing high-availability and disaster recovery solutions Strong understanding of networking, security (SSO/RBAC, TLS, secrets management), and observability (Prometheus, Grafana, Datadog) Experience with ...

hosted platform Competent in Git and the GitOps philosophy Familiarity with concepts for managing very large application load (e.g. CDNs, load balancers) and providing high availability services Keen interest/experience in leveraging AI and agentic approaches in an Ops or Developer Platform context Experience of working ...

electronic trading environments Lead performance tuning, optimisation, and refactoring of low‐latency trading components Investigate and resolve production issues, ensuring system stability and high availability Collaborate with global teams, including Architecture, DevOps, and Product Mentor and guide engineers to improve technical capability and engineering standards Experience/Competences … Essential Strong experience designing and building high‐performance, low‐latency Java services within electronic trading Strong experience with distributed messaging technologies (Solace/Kafka) and real‐time systems Strong experience designing and building event-driven systems deployed to cloud environments (AWS, EC2, EKS, Kubernetes) Experience with memory architectures ...

conducted on the LME’s three trading platforms totalling $21 trillion, 191 million lots and 4 billion tonnes notional with a market open interest high of 2.1 million lots in 2025.The metals community uses the LME, an HKEX Group company, as a venue to transfer or take on price … Overall Purpose of Role**As a Senior Network Security Specialist, you will design, implement and govern the network security controls that protect our modern, high‐performance enterprise network. You will take a hands‐on lead role in shaping the network security roadmap, defining policies and standards and driving ...

hands‐on technical oversight. You will own day‐to‐day IT support operations, oversee maintenance and incident resolution for GPU clusters, and ensure high service levels across hardware, network, and field support activities. You will act as a key escalation point, drive operational improvements, and align support execution with … Lead and manage L1, L2, IT infrastructure and Field Network Engineers supporting data center IT infrastructure and GPU clusters and region IX colocations. Ensure high availability and reliability of GPU clusters and IT infrastructure Act as the primary escalation point for complex hardware, network, and operational incidents Monitor ...

strategic goals and technology initiatives. Qualification Key Responsibilities Design, Implement, and Manage Network Infrastructure Lead the design and deployment of robust, scalable, and high-performing network architectures, including LAN, WAN, WiFi, and cloud networking solutions. Expertise in routing, switching, and network segmentation to support business operations across multiple sites … environment. Cloud Networking Expertise Architect and manage cloud-based network solutions (e.g., AWS, Azure, GCP) to support a range of applications and workloads. Ensure high availability and performance of network services in cloud environments, leveraging virtual network functions, VPNs, and direct connections. Design cloud-to-cloud and hybrid ...

solutions, design, development, and technical troubleshooting with ability to think beyond routine or conventional approaches to build solutions or break down technical problemsDevelops secure high-quality production code, and reviews and debugs code written by othersIdentifies opportunities to eliminate or automate remediation of recurring issues to improve overall operational … experience developing/running large datasets and optimizing query performance. Practical experience scaling and load-balancing of KDB applications. Practical experience building resilient and high-availability KDB applications. Preferred qualifications, capabilities, and skillsExperience with market data venue and vendor data platforms. AWS Experience. Experience in Terraform and Kubernetes ...

solutions, developing and supporting automation frameworks, managing CI/CD pipelines, and providing technical support to development teams to enable the efficient delivery of high-quality services and applications. Key Deliverables Build and maintain Kubernetes clusters on-prem and in cloud Access and IAM management in Google Cloud, Looker … with on-prem sharded mongo cluster Extensive experience in building, managing, scaling Kubernetes clusters (GKE, manual Kubernetes, etc.) Extensive experience in designing and building high availability, resilient infrastructure Experience in setting up and maintaining monitoring, alerting, log collection (rsyslog, Grafana, Prometheus, elk) Automation and scripting experience (terraform, packer ...

support of IT infrastructure services. Design, implement, and maintain secure, scalable, and resilient infrastructure solutions. Supporting our primarily Microsoft-based infrastructure, ensuring its high availability, resilience, and performance. Both hybrid cloud and on-premise environments. Oversee server, storage, network, backup, cloud and virtualisation platforms. Ensure infrastructure availability … required. Leadership and Team Management Lead and develop the small Infra team, strong leadership and people management skills. What you'll need A high level of experience with Microsoft technologies including Windows Server andDesktop, Active Directory, Entra, Hybrid domains, Group Policies, 365, Intune, Teams,SharePoint, NTFS etc. Networking ...

support of IT infrastructure services. Design, implement, and maintain secure, scalable, and resilient infrastructure solutions. Supporting our primarily Microsoft-based infrastructure, ensuring its high availability, resilience, and performance. Both hybrid cloud and on-premise environments. Oversee server, storage, network, backup, cloud and virtualisation platforms. Ensure infrastructure availability … required. Leadership and Team Management Lead and develop the small Infra team, strong leadership and people management skills. What you'll need A high level of experience with Microsoft technologies including Windows Server andDesktop, Active Directory, Entra, Hybrid domains, Group Policies, 365, Intune, Teams,SharePoint, NTFS etc. Networking ...