1 to 25 of 32 High Availability Jobs in the City of London

Network Engineer - Financial Services

Hiring Organisation
Ashdown Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£70,000
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 ...

Senior GCP Architect

Hiring Organisation
TEKsystems
Location
City of London, London, United Kingdom
Cloud capabilities. You will lead a team of Sr. Cloud Architects and Engineers to build and deliver GCP Cloud platform capabilities ensuring high availability, security and efficiency for our customers. This role will be accountable for ensuring delivery excellence and providing thought leadership to Our customer’s executive … such as Terraform, Ansible Strong understanding of IT service management (ITSM) frameworks like ITIL Experience with DevOps tools and deployment patterns Strong understanding of High Availability and Multi Region Architectures Hands on experience in Application Migrations to GCP Proven scripting experience in languages like python, go, etc... Deep ...

Database Administrator DBA

Hiring Organisation
Alexander Edward James Consulting Limited
Location
City of London, London, United Kingdom
Employment Type
Temporary, Work From Home
Salary
£60,000
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 ...

Mobile Engineer

Hiring Organisation
Expedia Group
Location
City of London, London, United Kingdom
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 ...

C#.Net Developer

Hiring Organisation
Boston Hale
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £65,000 per annum
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 ...

Senior SQL DBA

Hiring Organisation
Infoplus Technologies UK Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £350 to £370 per day
functions can fulfil the collective mission of promoting monetary and financial stability for the good of the UK. We achieve this by delivering resilient, high performing, secure technology solutions and information services across the organisation. Technology operates on a clear and efficient model: Analyse Deliver Service Secure, ensuring transparency … Server databases across the Banks environment. Configure, optimise, and support SQL Server instances and associated processes. Monitor overall system health, performance, and capacity. Ensure high levels of availability, resilience, performance, and security. Troubleshoot and resolve incidents in real time. Provide recommendations for improvements and corrective actions. Operational Excellence ...

Senior DevOps Engineer in the Netherlands

Hiring Organisation
TOPIC Embedded Systems
Location
City of London, London, United Kingdom
TOPIC (in the Netherlands), we work every day on high-tech innovations to make the world smarter, healthier, and better. Are you a driven and ambitious Senior DevOps Engineer with a passion for automation, CI/CD, and state-of-the-art tooling that we are looking … solutions Set up and optimize virtual infrastructure, including hardware integrations, (sub)system onboarding, and hardware migrations Manage containerized applications and microservices using Kubernetes, ensuring high availability, performance, and scalability Deliver end-to-end monitoring, logging, and data analytics solutions Write and maintain robust Python code for test automation ...

Solace Administrator

Hiring Organisation
BGC Group
Location
City of London, London, United Kingdom
Messaging Administrator to join our Messaging team. You will be responsible for managing and supporting our enterprise messaging infrastructure built on Solace PubSub+, ensuring high availability, optimal performance, and reliability across production and non-production environments. This includes working on incident response, capacity planning, WAN optimization, and system … cloud-native Solace deployments. Why Join Us? Join a multi-discipline team, delivering advanced Messaging APIs, developing tools, administering , supporting low latency, high throughput messaging system for prices, orders, trades, and mission critical applications. Exciting opportunity to work with a wide array of technologies. Chance to further develop your ...

Senior Security Administrator - Palo Alto

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£200 - £400 per day
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 ...

DevOps Engineer

Hiring Organisation
Block MB
Location
City of London, London, United Kingdom
machine learning infrastructure. This role focuses on developing and maintaining scalable cloud environments, CI/CD pipelines, and deployment systems that support high-performance ML workloads. Key Responsibilities Design and maintain scalable cloud infrastructure for distributed computing and ML workloads Build and optimise CI/CD pipelines to enable … alerting/logging, and troubleshoot production issues Collaborate with engineering teams to improve performance, scalability, and cost efficiency Implement security best practices and ensure high availability of production systems Requirements Degree in Computer Science, Engineering, or similar, or relevant industry experience Experience with cloud platforms ...

SQL Server DBA

Hiring Organisation
Syntax Consultancy Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£350 - £400 Per Day Inside IR35
Optimization (PTO) Must have in-depth experienced, Manage SQL Server databases, Configure and maintain database servers and processes, Backups, restores and recovery models. High Availability (HA) and Disaster Recovery (DR) options for SQL Server and experience with Windows server, including Active Directory Monitor system's health and performance … including ensure high levels of performance, availability, sustainability and security Analyze, solve, and correct issues in real time and Refine and automate regular processes, track issues, and document changes Assist developers with query tuning and schema refinement Provide 24×7 support for critical production systems Perform scheduled maintenance ...

Cloud Delivery Lead

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£70 - £79/hour Inside IR35 Remote working
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 ...

Network and Security Specialist

Hiring Organisation
VIQU IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
London-based environment. This is a hands-on, technically led role where the Network and Security Specialist will be responsible for protecting systems, ensuring high availability, and strengthening security posture while supporting day-to-day operations and future growth. Key Responsibilities: • Design, implement, and maintain secure network … incidents using SIEM tools, Sophos MDR, and threat-hunting techniques. • Configure and manage firewalls, VPNs, IDS/IPS, web and email security solutions. • Maintain high patching and vulnerability remediation standards, including CVE management. • Coordinate annual third-party penetration testing and lead remediation based on risk and CVSS scoring. • Investigate ...

.NET Developer

Hiring Organisation
Lime Street Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£50,000
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 ...

Principal Software Engineer

Hiring Organisation
Verifone
Location
City of London, London, United Kingdom
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 ...

Trading Infrastructure/Reliability Engineer | Hedge Fund | London

Hiring Organisation
Stanford Black Limited
Location
City of London, London, United Kingdom
/Reliability Engineer - Systematic Hedge Fund The Trading Infrastructure Engineer will be part of a highly talented team of support engineers responsible for ensuring high availability of mission critical services such Infrastructure as a Service (IaaS), Build & Deploy, Research and Trading. The candidate will be responsible for providing ...

Insurance Junior Database Administrator

Hiring Organisation
Albion Blake
Location
City of London, London, United Kingdom
relational database systems) Understanding of indexing, query optimisation, backups, and recovery models Exposure to enterprise applications such as Policy Administration Systems advantageous Familiarity with high-availability environments (clustering, replication, or Always On) beneficial Basic scripting knowledge (PowerShell, Python, or similar) advantageous Strong analytical and troubleshooting skills Detail-oriented ...

Senior Cloud Infrastructure Engineer

Hiring Organisation
DGH Recruitment Ltd
Location
City of London, London, Cathedrals, United Kingdom
Employment Type
Permanent
Salary
£80000 - £85000/annum
strong understanding of the broader Microsoft technology stack. Responsibilities: * Design, implement, and continually manage Azure cloud infrastructure to ensure scalability, security, and high availability. * Perform vulnerability patch management for cloud and on-premises systems, ensuring timely remediation of identified risks. * Administer and optimize Azure Virtual Desktop (AVD) environments, ensuring ...

Senior ML Engineer

Hiring Organisation
Sky
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
feature engineering and model training utilising both structured and unstructured large-scale datasets. Production Deployment: Deploy and supervise ML models in production environments, ensuring high availability, optimal performance, and continued relevance. Experimentation: Design and analysis of A/B tests and offline experiments to evaluate model efficacy … . . Experience using ML Training frameworks (e.g., TFX, Kubeflow Pipelines SDK) and Model Serving technologies (eg. Tensorflow Serving, Triton, TorchServe). Experience with high-volume data processing and real-time streaming architectures. Strong understanding of recommendation system design and personalisation algorithms. Familiarity with Generative AI and its applications ...

RPG Lead

Hiring Organisation
Quinnox Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
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. ...

Network Engineer

Hiring Organisation
Ashdown Group
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
networks in a large user environment - Strong Cisco background (ideally CCNP/CCIE) - Knowledge of Layer 2 LAN technologies (VLANs, VTP, STP) - Understanding of high availability technology (VPC, SVL, HSRP) - Routing protocols - SDWAN technologies - CIsco Wireless technology ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £60,000 per annum
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. ...

Principal Machine Learning Engineer

Hiring Organisation
Sky
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
feature engineering and model training utilising both structured and unstructured large-scale datasets. Production Deployment: Deploy and supervise ML models in production environments, ensuring high availability, optimal performance, and continued relevance. Experimentation: Design and analysis of A/B tests and offline experiments to evaluate model efficacy … . . Experience using ML Training frameworks (e.g., TFX, Kubeflow Pipelines SDK) and Model Serving technologies (eg. Tensorflow Serving, Triton, TorchServe). Experience with high-volume data processing and real-time streaming architectures. Strong understanding of recommendation system design and personalisation algorithms. Familiarity with Generative AI and its applications ...

Machine Learning Engineering Lead

Hiring Organisation
Sky
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
feature engineering and model training utilising both structured and unstructured large-scale datasets. Production Deployment: Deploy and supervise ML models in production environments, ensuring high availability, optimal performance, and continued relevance. Experimentation: Design and analysis of A/B tests and offline experiments to evaluate model efficacy … . . Experience using ML Training frameworks (e.g., TFX, Kubeflow Pipelines SDK) and Model Serving technologies (eg. Tensorflow Serving, Triton, TorchServe). Experience with high-volume data processing and real-time streaming architectures. Strong understanding of recommendation system design and personalisation algorithms. Familiarity with Generative AI and its applications ...

Applied Machine Learning Lead

Hiring Organisation
Sky
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
feature engineering and model training utilising both structured and unstructured large-scale datasets. Production Deployment: Deploy and supervise ML models in production environments, ensuring high availability, optimal performance, and continued relevance. Experimentation: Design and analysis of A/B tests and offline experiments to evaluate model efficacy … . . Experience using ML Training frameworks (e.g., TFX, Kubeflow Pipelines SDK) and Model Serving technologies (eg. Tensorflow Serving, Triton, TorchServe). Experience with high-volume data processing and real-time streaming architectures. Strong understanding of recommendation system design and personalisation algorithms. Familiarity with Generative AI and its applications ...