1 to 25 of 29 High Availability Jobs in the City of London

team. This is a key role with responsibility for the design, delivery, and ongoing support of a global enterprise network , working in a complex, high-availability environment. You will play a pivotal role in modernising network infrastructure , driving technical improvements, and providing senior-level support across the organisation. … switching, firewall, and SD-WAN solutions Integrate switches, routers, wireless controllers, SDN, load balancers, NAC servers, and cloud platforms Ensure network security, resilience, and high availability across global environments Skills & Experience Required Proven experience designing and implementing networks in a large user or enterprise environment Strong Cisco background ...

fast-growing London-based FinTech firm building secure, scalable, and high-performance financial platforms that power digital payments, lending, and real-time financial services. As they scale the platform and expand their product offerings, they are looking for a Senior DevOps Engineer to play a key role in shaping … secure, resilient, and compliant with financial regulations. This is a hands-on technical role with strategic influence — ideal for someone who thrives in high-availability, high-security environments and enjoys mentoring others. Key Responsibilities Design, build, and maintain scalable cloud infrastructure (AWS) Lead Infrastructure as Code initiatives ...

IaaS experience and strong FinOps discipline . This role owns the network‐first, cost‐aware infrastructure architecture for SAP workloads on Azure, ensuring secure, high‐performance, highly available, and financially optimized Azure environments. The architect will design enterprise Azure networking , lead SAP migrations to Azure IaaS , and apply FinOps … Cost‐Aware) Architect enterprise‐scale Azure IaaS platforms for SAP workloads Design and govern: SAP‐certified Azure Virtual Machines Managed disks (Premium/Ultra) Availability Sets and Availability Zones Own infrastructure sizing, capacity planning, and performance tuning for SAP HANA Define OS‐level standards (Linux/Windows ...

across Azure and Microsoft SQL platforms for a growing SaaS client of ours. The position supports the wider DevOps objectives by ensuring the security, availability, integrity, and end-to-end support of database services. Working as part of a DevOps team, the role is responsible for both on-premise … based database systems, including both vendor-supplied and internally developed solutions Design and implement tactical and strategic database solutions with a focus on scalability, availability, performance, and resilience Proactively monitor the SQL Server estate to ensure high availability and optimal performance Provide operational support to internal stakeholders ...

more open world. Join us. The team As native engineer in the Product Experience team, you will be responsible for building and maintaining our high-availability, high-transactional Property Detail Pages on the app. You will be part of a multi-functional team of Product Managers, TPMs … Engineering Managers, and Software Engineers based in Gurgaon, Bangalore, and London. We prioritise building high-quality software with a focus on availability, performance, scalability, and system resiliency. Our London team is looking for curious, empathetic, and creative problem solvers with a growth mindset. We value our team culture ...

days onsite/2 days remote) I'm partnering with a leading multinational investment management firm seeking a strong C# Developer to join a high-performing engineering team delivering business-critical platforms. This role requires someone confident with strong communication skills to engage directly with stakeholders, shaping requirements … working on: Real-time asset tracking platforms integrating external data sources (e.g. Bloomberg, Refinitiv, Morningstar, market data feeds, pricing & risk engines) High-availability, high-quality distributed applications Enhancing systems that model financial positions, transactions and flows Driving projects from inception through design, build, testing and release Core ...

entire infrastructure stack; from CI/CD pipelines to production deployments, from infrastructure orchestration to security governance. You’ll be part of a high-powered team located in London. You will build robust systems, move quickly, but be ready to scale and ensure production-grade reliability as our product … Prometheus, Grafana, CloudWatch, Datadog, Sentry) to ensure system reliability and rapid incident response. • Establish SLOs/SLIs and implement observability best practices to maintain high availability and performance. • Lead incident response, root cause analysis, and implement preventive measures to improve system resilience. Security & Governance: • Implement and maintain security ...

deployment practices, monitoring, and long-term maintainability. Operational Accountability: Act as the technical owner of production systems that directly impact live rail operations, ensuring high availability and rapid incident resolution. Requirements Must Haves 4+ years of professional experience with Ruby on Rails. Strong understanding of object-oriented programming … your family Culture & Operating Principles We value : Ownership over hierarchy Clarity over bureaucracy Impact over job titles We operate with high autonomy and high accountability. People are expected to raise risks early, communicate clearly, and take responsibility for outcomes. Interview Roadmap Screening Call (30 mins) – Recruiter alignment Technical ...

countries within key global markets. About the Role We are looking for an experienced OpenShift Site Reliability Engineer (SRE) to ensure the reliability, availability, and performance of enterprise‐grade OpenShift‐based virtualized and container platforms. This role focuses on automation, secure service design, and cross‐team collaboration across Applications … outages, enforce SRE best practices, and participate in an on‐call rotation. Primary Responsibilities Manage and optimize OpenShift and container/virtualization platforms for high availability and performance. Collaborate closely with multiple technical teams to deliver scalable, secure solutions. Design secure cloud‐native service architectures with automation-first ...

controls, ensuring secure and resilient network operations across enterprise environments. This role is hands-on, need to be comfortable working in complex, regulated, or high-availability environments, partnering with infrastructure, networking, and SOC teams to deliver robust security outcomes. Key Responsibilities: Palo Alto Administer, configure, and support Palo ...

Team & People Management Lead multidisciplinary agile teams including cloud engineers, DevOps specialists, analysts, and testers Mentor, coach, and support performance development to build a high-performing delivery culture Ensure effective resource planning to support sprint velocity and long-term delivery capacity Cloud Architecture & Engineering Oversight Oversee delivery of cloud … architectures, container platforms, and hybrid infrastructure solutions Guide adoption of Infrastructure as Code (IaC) and automation practices Collaborate on designs for scalability, resilience, and high availability across platforms Delivery Operations & Agile Governance Manage sprint planning, backlog prioritisation, and iterative delivery using agile methodologies Track and report delivery metrics ...

core Production Engineering team, who are accountable for the reliability, operability and performance of the firm’s trading-critical systems, in an environment where availability, correctness and latency directly impact outcomes. The successful hire will own the reliability of business-critical systems, from observability design through to incident resolution … systemic improvement; lead high-severity incident management; and reduce toil with software engineering, primarily in Python but also with Golang, TypeScript, SQL and/or PowerShell. The role requires someone who can evidence outstanding problem-solving and the ability to solve problems on their own initiative. Requirements Debugging distributed ...

with cutting-edge technologies, including GCP, Kubernetes, Terraform/OpenTofu, and modern CI/CD pipelines, while helping define best practices for a regulated, high-impact platform. What You’ll Do: Infrastructure & Automation: Build and maintain cloud infrastructure, CI/CD pipelines, and automated deployment workflows. Security & Compliance: Implement … securely. Incident Response: Contribute to operational and security incident handling to minimize downtime and risk. What You Bring: Strong experience designing, managing, and securing high-availability cloud infrastructure (GCP preferred). Expertise with Kubernetes (GKE), container runtime security, and cluster hardening. Solid skills in Infrastructure as Code (Terraform ...

Head of IT, you will manage and optimise cloud environments, ensure security and compliance, and work closely with the Solutions Architect to deliver scalable, high-performing infrastructure solutions. Advanced expertise in Microsoft Azure and the broader Microsoft technology stack is essential, along with flexibility to support on-call … hours requirements. Key Responsibilities: Design, implement, and manage scalable, secure, and high-availability Azure cloud infrastructure. Administer Azure Virtual Desktop (AVD) environments, ensuring compliance and seamless user experience. Develop and enforce application control policies to maintain secure and compliant usage across the organisation. Implement Microsoft Purview data governance ...

features using .NET and SQL Coordinating sub-projects and engaging directly with business on requirements and functionality Managing live system issues and ensuring high availability and performance The successful candidate will work closely with stakeholders to understand requirements and design robust solutions as we expand our systems … innovation in our technology stack. The development teams in London and the US consist of skilled developers across different disciplines, working together to deliver high-quality solutions. Skills Required We are looking for someone who combines strong technical ability with excellent problem-solving skills. The successful candidate will demonstrate ...

role sits at the heart of Verifone’s global payment gateway platform. You will help shape the technical direction of systems responsible for processing high‐volume, mission‐critical financial transactions worldwide. At this level, the role goes beyond feature delivery. You will drive architectural decisions, set engineering standards … work closely with senior engineering, platform, product, and infrastructure partners to ensure our systems scale globally, remain secure, and meet the highest standards for availability and performance. Required Skills and Experience Needed Programming Languages Java 17 or higher Frameworks and Libraries Spring Boot Spring Web (REST APIs) Spring Data ...

Hybrid) Rate: £450-550 per day IR35 Status: Outside IR35 Duration: 3 Months (Initial + likely extension) The Opportunity We are looking for a high-calibre Senior GCP Data Engineer to join one of London's fastest-growing technology success stories. Following a period of exceptional performance and record … pipelines to ingest data from a variety of internal and external sources. Infrastructure: Leveraging the full power of Google Cloud Platform to ensure high availability and performance of our data environment. Optimization: Refining and optimizing complex SQL queries and Python scripts to ensure efficient data processing and cost ...

Senior Front End Developer - Angular - Permanent - Hybrid London 2 days a week - £100 - 120k base Join a high-growth fintech firm as a Senior Frontend Developer , building the interfaces that power complex financial decisions. You will spend 80% of your time hands-on and 20% on technical design, architectural … standards, and mentoring. Working directly with our Solutions Architect, you will translate high-level vision into distributed, cloud-native systems using Angular and MicroUI patterns . Key Responsibilities MicroUI Architecture: Design and build modular, composable frontend systems to accelerate delivery across a distributed ecosystem. Development: Deliver high-stakes ...

Backend Engineer who loves solving complex technical problems and building systems that actually matter? We’re looking for someone who wants to work on high‐availability, secure, global financial infrastructure powering millions of users. You’ll work across modern backend architecture, building services that are fast, resilient, secure … product, mobile, and frontend teams. What You’ll Work On Designing and improving backend services that power web + mobile applications Building and maintaining high‐performance APIs and distributed microservices Solving problems around scalability, reliability, security, and automation Working with modern API protocols including GraphQL and gRPC Enhancing ...

Eastleigh (Hybrid) Inside IR35 PAYE/Umbrella Rate: National £440 – £600 per day | London £510 - £700 per day Are you someone who thrives in high‐performing tech environments and enjoys leading teams through major change? This role is perfect for you if you’re confident directing technical operations, enjoy … agreed targets What we’re looking for Proven experience leading technical teams (Engineering/DevOps) in large organisations Strong background in IT operations and high‐availability systems Experience in Health or Financial Services (Life, Pensions, or Insurance) ITIL certified Calm, decisive approach during incidents and deployments Nice ...

advise on hardware/bandwidth upgrades triggered by business growth and specific customer projects. Traffic Forwarding: Ensure optimal performance and data integrity for high-availability, scalable systems used for critical live content broadcasting. Network Security & Maintenance Infrastructure Security: Take ownership of network security, implementing best practices for access … level 3 escalation point for complex networking issues Team Guidance: Mentor and collaborate with technology teams on engineering projects and the resolution of high-level technical issues. Training: Assist engineers in learning networking concepts and the specific architecture of the Cingularity network. Project Delivery: Lead technical network projects from ...

practices, and system governance for RPG and IBM i applications. Review and approve technical designs, RPG code, and database changes. Ensure solutions meet performance, availability, security, and audit requirements. Lead root cause analysis for complex production issues and ensure long-term fixes. Development & Delivery Act as a hands … Flex cube, Temenos, etc.). Exposure to core banking modernization or system integration initiatives. Knowledge of API enablement, message queues, or middleware. Experience with high availability, disaster recovery, and failover setups. Familiarity with banking regulations, audits, and compliance controls. ...

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. ...

looking for an experienced Backend Engineer to help build, scale, and optimize next‐generation financial services infrastructure. You will work on high‐availability, low‐latency systems, powering consumer and business APIs used globally. This role is ideal for someone who thrives in fast-paced fintech environments … Must‐Have Technical Skills Expert-level Node.js development experience (TypeScript/Javascript). Professional Golang development experience. Strong GraphQL experience, including schemas, resolvers, and high-volume queries. Deep knowledge of PostgreSQL, including performance tuning and relational design. Hands-on experience with Redis for caching, pub/sub, or distributed ...

newer business models, as a long-term sustainable partner. What we are looking for? We are looking for Solution Architects to join a high‐performing architecture function supporting a portfolio of strategic initiatives across Hospitality and Retail. The Solution Architect will play a hands‐on design and assurance role … traceability across initiatives Outline Solution Designs (OSDs) Define early‐stage solution direction to support discovery, estimation, and planning Establish scope boundaries, assumptions, and dependencies High‐Level Designs (HLDs) Produce clear, structured HLDs covering: Architecture overview and context Logical and physical views Integration patterns and data flows Security, resilience, scalability ...