1 to 25 of 40 High Availability Jobs in the City of London

with particular emphasis on Cisco Secure Firewall and advanced BGP. Key Responsibilities Design and deployment of a new Cisco Secure Firewall Management Center (FMC) High Availability pair Deployment and configuration of HA pair Cisco Secure Firewalls Migration of existing legacy firewall configurations to the new environment Review … Strong hands-on experience with Cisco Secure Firewall/FTD Strong experience with Cisco Firewall Management Center (FMC) Experience deploying FMC and firewalls in High Availability configurations Proven experience with firewall migrations and configuration optimisation Advanced BGP knowledge, including configuration and troubleshooting Strong understanding of routing protocols ...

Prepurchase Platform group owns the backend services that power every fan's path to a ticket. We handle event discovery, real-time seat availability, and interactive venue experiences at massive scale, processing billions of API calls during peakon-sales. Our engineers build systems that must be fast, resilient … reaching a fan is a problem, not a data point; treat it accordingly and act with urgency regardless of volume. Build end-to-end, high-availability systems that handle extreme traffic spikes during high-demand on-sales without degradation. Lead platform modernization initiatives - migrating legacy services ...

headcount. What You'll Be Doing Own the Netcool estate - administer, maintain and upgrade Omnibus, ObjectServers, Gateways, Probes, WebGUI and Impact, ensuring high availability, resilience and robust lifecycle management Engineer smarter event management - design and maintain correlation, suppression, deduplication, enrichment and automation rules that cut alert noise … large-scale enterprise environments, including Omnibus, Impact and WebGUI Strong grasp of Netcool architecture - ObjectServers, Probes, Gateways (ServiceNow, JDBC), plus failover and high-availability configurations Proven track record delivering platform upgrades, patching, migrations and lifecycle activities on mission-critical 24x7 platforms Strong SQL and ObjectServer database administration, with ...

share our belief that it’s not just what we do that matters–it's how we do it. DRW is a place of high expectations, integrity, innovation and a willingness to challenge consensus. Cumberland Systematic is a multi-asset trading team focused on mid and high-frequency … team. You will work with other software engineers to design and develop the full stack needed to enable a global trading operation with high availability requirements. You will be expected to design and develop trading systems, market data connectivity, execution algorithms, research infrastructure, monitoring and observability tooling ...

environments. - Maintain secure, resilient and scalable network services aligned to business requirements, client expectations and regulatory obligations. - Support disaster recovery testing, failover validation and availability improvement for critical network services. - Monitor network performance, identify risks, resolve complex incidents and drive continual service improvement. - Shape and maintain the technical roadmap … senior or lead network engineer within a complex enterprise environment. - Deep knowledge of enterprise networking, including Layer 2/3, switching, routing, VLANs, segmentation, high availability, wireless and troubleshooting. - Strong experience with Cisco enterprise technologies, including Catalyst, Nexus, Cisco ISE, RADIUS, TACACS+, 802.1X and access control policies. - Strong ...

leading trading firm in London is seeking a Software Engineer to design and develop high availability trading systems using C++ and Python. The ideal candidate will have over 5 years of C++ experience and a strong understanding of concurrency and software for trading. This role requires collaboration with ...

environments. - Maintain secure, resilient and scalable network services aligned to business requirements, client expectations and regulatory obligations. - Support disaster recovery testing, failover validation and availability improvement for critical network services. - Monitor network performance, identify risks, resolve complex incidents and drive continual service improvement. - Shape and maintain the technical roadmap … senior or lead network engineer within a complex enterprise environment. - Deep knowledge of enterprise networking, including Layer 2/3, switching, routing, VLANs, segmentation, high availability, wireless and troubleshooting. - Strong experience with network security and secure access technologies including Palo Alto, Prisma Access, SD-WAN and SASE concepts. ...

Systems designs. Responsibilities To act as an Infrastructure Architect on a variety of internal and external IT delivery projects, key responsibilities include: Produce high quality High Level Design documentation describing technical systems solutions, providing overall design direction and recommendations for resolution of complex technical issues Provide technical leadership … communication skills Leadership, presentation and stakeholder management skills Ability to work on complex projects with globally distributed teams and tight timelines Ability to design high availability solutions, including consideration to fault tolerant analysis and resiliency Ability to work with and manage vendors/suppliers such as IBM Experience ...

fraud detection and prevention. You will help design the future vision for these services, including consolidation and incremental re-architecting, with a focus on high-volume, high-availability and low-latency services. You will improve existing services while reducing maintenance overhead through simpler architectures and the appropriate ...

Responsibilities Help define and deliver the future vision for attribute reputation services, driving simplification and consolidation where appropriate. Design and develop high-volume, high-availability, low-latency backend services. Enhance and optimise existing applications and services. Support incremental re-architecting initiatives to reduce technical complexity and improve … Continuous Integration/CI/CD Agile methodologies Due to the nature and urgency of this post, candidates holding or who have held high level security clearance in the past are most welcome to apply. Please note successful applicants will be required to be security cleared prior to appointment ...

resilience, and AI-ready platforms. You'll work closely with clients to understand business challenges, develop technical solutions, and clearly demonstrate business value through high-quality architecture and design documentation. You'll join a highly skilled team of architects and engineers working across cloud, automation, AI, networking, and enterprise … architectures including Cisco ACI, SDN, and spine-leaf topologies. Design and implement Infrastructure as Code solutions using tools such as Terraform and Ansible. Architect high-availability, backup, and disaster recovery solutions. Deliver infrastructure migration and transformation programmes. Design AI-ready infrastructure using platforms such as Cisco ...

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 ...

Location: London (Hybrid – 3 days in office) Type: Full-time Are you ready to step into a high-performance environment at the heart of global markets? We're looking for a motivated and technically skilled eTrading Production Support Engineer to join our fast-paced Application Support team based … firewall infrastructure and multicast messaging Very keen to understand your: Familiarity with electronic trading systems (FX or other asset classes) Exposure to low-latency, high-availability trading environments Project delivery experience in a production or infrastructure setting We need someone who is: Strong communicator and natural collaborator Analytical ...

HCLTech is seeking a skilled UI Developer to build time-critical, high-availability, and high-performance user interfaces. You will work across the full UI development lifecycle, from design through testing and deployment, using HTML, CSS, JavaScript, React and TypeScript. Strong experience with real-time communication (WebSockets ...

Description: UI Developer (React, TypeScript and AI) Role Overview- We are seeking a highly skilled UI Developer with strong expertise in building time-critical, high-availability, and high-performance applications. The ideal candidate will have hands-on experience across the full UI development lifecycle, including design, development ...

Developer (React, TypeScript and Low-Latency) Role Overview- We are seeking a highly skilled UI Developer with strong expertise in building time-critical, high-availability, and high-performance applications. The ideal candidate will have hands-on experience across the full UI development lifecycle, including design, development, testing ...

powered assurance insights within Cisco’s Networking, Security, Collaboration, and Observability portfolios. Our distributed Site Reliability Engineering team of approximately nine engineers owns the availability, latency, performance, efficiency, monitoring, emergency response, and capacity planning of the platform while partnering closely with application development teams. We believe in operations, infrastructure … scale, highly available distributed systems that allow the ThousandEyes platform to process a constantly growing volume of telemetry data.Use AI Tooling to w rite high-quality code and automated solutions that enable fast, reliable releases, reduce operational expense, and allow our infrastructure and platforms to scale thoughtfully across regions. ...

MLOps Engineer (Platform/DevOps) - AI Platform - 3 days per week onsite We're partnering with a leading organisation on a high-profile AI initiative, seeking an experienced MLOps/Platform Engineer to build and scale infrastructure supporting advanced AI solutions. The Role You'll play a key role … platform for deploying AI workloads and agents. Working closely with Data Science and Engineering teams, you'll ensure robust infrastructure, seamless deployment pipelines, and high platform reliability. Key Responsibilities - Design, deploy, and manage AI platforms and agent infrastructure - Build and maintain CI/CD pipelines and DevOps workflows - Implement ...

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 … 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 and network ...

across multiple concurrent programmes. Drive delivery excellence and technical quality across the organization. Balance technical innovation with practical delivery outcomes. Create and maintain a high-performance culture focused on collaboration, accountability, and customer success. Support capability growth across architecture, engineering, integration, cloud, data, and operational technology disciplines. Serve … Event‐Driven Architecture Kafka and Streaming Technologies Enterprise Integration Platforms Cloud Architecture (Azure, AWS, GCP) Cyber Security and Identity Management Virtualization End User Compute High Availability and Disaster Recovery Linux Enterprise Environments DevOps and Deployment Automation Data Architecture and Information Management Operational Monitoring and Observability Platforms Network Architecture ...

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 ...

Testing: Run hands-on testing in lab environments to validate and certify new hardware and software releases before deployment. Unix & Linux Delivery: Maintain high availability across RHEL, Ubuntu, and legacy Unix platforms while driving modern infrastructure-as-code practices. Solution Design: Partner with internal technical teams to turn ...

across SAP S/4HANA, SAP ECC, SAP BTP, SAP PI/PO, SAP Fiori/UI5, and integrated enterprise systems. This role ensures high‐performance, scalable, secure, and future‐ready SAP solutions that align with business strategy and IT roadmaps. The architect collaborates closely with business leaders, solution … system landscape design, including DEV/QAS/PRD/DR environments. In‐depth knowledge of SAP Basis, system sizing, performance tuning, high‐availability (HA) and disaster recovery (DR) configurations. Strong experience with SAP HANA database architecture, optimization, backup/restore strategies, and security. Expertise in SAP integration ...

Stratford, London is seeking a Senior Scala Engineer to define and shape backend services and APIs for fraud detection. You will work on high-availability, low-latency systems and collaborate with cross-functional teams in a lean, agile environment. You will design, develop and maintain clean backend code ...