1 to 25 of 26 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 ...

Location -London, UK Onsite role- 5 days from office Job Description We are seeking a Contact Center Engineer/Senior SME to own high‐severity, complex, and business‐critical incidents across Genesys Cloud CX and Cisco Unified Contact Center Enterprise (UCCE) platforms supporting mission‐critical enterprise Voice Network. This … guide platform stability initiatives, and mentor Level‐2 engineers. Key Responsibilities Incident & Problem Management (Genesys Cloud CX & UCCE) Act as L3 escalation for all high‐severity P1/P2 contact center incidents across Genesys Cloud CX and Cisco UCCE. Lead technical triage, incident bridges, and resolution strategy during major ...

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 ...

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 ...

roadmaps. Regularly undertake complex and/or critical consultative engagements, to a senior management level. Confidently scope complex and critical projects as well as (high level and detailed) deliverables. Able to work in a fast-paced project environment and tight delivery timelines. In addition, design, build, and operate platform … Code in an enterprise environment. Architectural design and deployment skills for enterprise Cloud technologies (public, private and hybrid) into complex environments. Excellent knowledge of high availability and backup/recovery solutions. Excellent technical design, performance improvement and service alignment skills. Experience around business critical and business continuity solutions. ...

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 ...

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 ...

Doing Installing, configuring, patching, and maintaining SQL Server instances across development and production. Managing backups, restores, user provisioning, security, and scheduled maintenance tasks. Supporting high-availability configurations using core SQL Server features. Supporting database monitoring, scaling, and general Azure SQL configuration. Assisting in structured Azure migration activities. Working ...

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 ...

offices, and secure environments. Maintain a hardened, compliant Windows desktop baseline aligned with financial sector requirements (e.g., CIS/NIST/NCSC). Support high‐availability endpoint environments used by traders, analysts, and regulated functions. Intune/Modern Device Management Design and operate Intune-based modern management solutions … Intune and Autopilot. Expert-level knowledge of Windows 10/11 , M365, Intune, Autopilot, Conditional Access, and Defender. Experience working in regulated, audited, and high‐security environments . Strong understanding of compliance requirements such as: Regulatory audits (FCA/PRA) Data privacy policies Security baselines Strong PowerShell development skills ...

trusted as a senior technical authority, taking ownership of routing architecture, contributing to strategic decisions, and ensuring the network can support real-time, high-throughput workloads. Key Responsibilities: • Design and operate resilient network architectures across LAN, WAN, data centre, and cloud environments • Own and optimise routing and traffic flows … improve network resilience, throughput, and operational efficiency What We’re Looking For: You will be an experienced network engineer who has worked in demanding, high-availability environments where routing stability and performance are critical. Strong practical experience with BGP, OSPF, and multicast networking is essential, alongside confidence working ...

permanent basis. Applications Operations Analyst Summary: The Applications Operations Analyst focuses on the operational support and continuous improvement of enterprise application environments, ensuring high availability, security, and performance. The ideal candidate will be responsible for day-to-day maintenance, patching, monitoring, and user support across critical systems, while ...

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 ...

design and end-to-end architecture of a next-generation AI platform leveraging AWS and Databricks. In this role, you will define both high-level and low-level designs, shape scalable and secure data and AI/ML platform capabilities, and drive seamless integration with core enterprise systems. … Platform Architect to lead the design and architecture of our next-generation AI platform built on AWS and Databricks. This role involves defining the High-Level Design (HLD) and Low-Level Design (LLD) for the end-to-end platform, driving integration with enterprise systems such as Radar ...

MOBKOI’s programmatic backend systems, including components of the real-time bidding (RTB) pipeline.• Support the design and implementation of scalable, reliable, and high-performance services handling large volumes of traffic.• Work alongside senior engineers to help evolve system architecture while balancing performance, cost efficiency, and reliability.• Assist … performance and contribute to initiatives that optimise infrastructure usage and operational cost.• Participate in diagnosing and resolving issues related to distributed systems, including latency, availability, and scaling challenges.• Implement backend components following best practices in fault tolerance, load balancing, and resilient design.• Develop an understanding of the programmatic advertising ...