26 to 50 of 486 High Availability Jobs in London

Enterprise Architect

Location
Greater London, England, United Kingdom
business with a strong global reputation, an impressive client base, and ambitious growth plans. We deliver deep insights and domain-led digital transformation to high-growth and heavily regulated organisations. To our customers, we bring a partnership that provides the talent, technology, and capability to enhance performance and operational … code, automated quality gates, release orchestration, environment promotion, vulnerability scanning, and audit-ready change management. Ability to define resilience and operational readiness requirements including high availability, disaster recovery, failover, observability, monitoring, logging, tracing, SLOs, incident handling, and support transition. Good appreciation of enterprise data platforms like Databricks , governed ...

Senior Database Administrator (Open-Source/FinTech Stack)

Hiring Organisation
N.P.A
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 80,000 - 95,000 Annual
Senior Database Administrator (Open-Source/FinTech Stack) About the Company We are partnering with a highly successful, high-growth financial technology firm and regulated European market operator. Known for their disruptive approach and cutting-edge trading technology, they handle massive volumes of Real Time market data at microsecond … manage a highly specialized ecosystem built for speed, data version-control, and deep observability. Working closely with Engineering and Operations teams, you will ensure high availability, advise on schema design, and guarantee that core data engines run flawlessly. The Tech Stack Core Relational: MySQL & PostgreSQL High-Performance ...

Senior Database Administrator

Hiring Organisation
N P Associates
Location
London, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £95,000 per annum
Senior Database Administrator (Open-Source/FinTech Stack) About the Company We are partnering with a highly successful, high-growth financial technology firm and regulated European market operator. Known for their disruptive approach and cutting-edge trading technology, they handle massive volumes of real-time market data at microsecond … manage a highly specialized ecosystem built for speed, data version-control, and deep observability. Working closely with Engineering and Operations teams, you will ensure high availability, advise on schema design, and guarantee that core data engines run flawlessly. The Tech Stack Core Relational: MySQL & PostgreSQL High-Performance ...

Neo4j Platform Consultant

Hiring Organisation
NTT DATA
Location
London, UK
Employment Type
Full-time
Neo4j/graph platforms/database engineering)Role OverviewWe are seeking a Neo4j Platform Engineer to build and manage the Neo4j infrastructure layer, ensuring high availability, performance, and secure access to enterprise knowledge graphs. This role is responsible for cluster configuration, performance tuning, and access control, enabling scalable … casesIdentify and resolve performance bottlenecks in large-scale graph environmentsBenchmarking & ScalabilityDesign and execute query performance benchmarks at scaleMonitor system performance and ensure high throughput and low latencySupport capacity planning and scaling strategiesSecurity & Access ControlImplement role-based access control (RBAC) and security best practicesEnsure data protection, authentication, and authorization mechanismsAlign ...

Infrastructure Systems & Cloud Manager

Location
Greater London, England, United Kingdom
more than 30 countries, 4,000+ experts and over 45 years of experience, Ingenico is a trusted global leader in payment acceptance. Work on high-impact, large-scale payment systems used globally, where your engineering directly powers millions of transactions The Impact You'll Make Own the strategic roadmap … company's cloud and hybrid strategy, driving automation and modernization through Infrastructure-as-Code Safeguard business continuity by leading disaster recovery planning across critical, high-availability transaction processing environments Build the vendor and partner relationships that deliver the best value and service to Ingenico globally What You Will ...

Senior Infrastructure Engineer

Location
Greater London, England, United Kingdom
operational excellence. Key Responsibilities Design, build and support enterprise infrastructure across on-premise and AWS environments Lead infrastructure modernisation and cloud migration projects Own High Availability, Disaster Recovery and business continuity capabilities Administer VMware, enterprise storage and Windows Server environments Develop automation using PowerShell, Python and Infrastructure … following: VMware vSphere/ESXi Windows Server, Active Directory & Entra ID AWS infrastructure (EC2, IAM, VPC, S3) Hybrid cloud environments Disaster Recovery & High Availability Enterprise backup technologies (Veeam, Rubrik, Zerto or similar) PowerShell and/or Python Infrastructure automation and Infrastructure-as-Code Strong troubleshooting skills within complex ...

Senior Backend Engineer

Location
Greater London, England, United Kingdom
love while tackling some of the most technically demanding challenges in fintech: critical infrastructure migrations, smooth, uninterrupted payment experiences, seamless open banking integrations, and high‐availability banking systems that can’t afford to fail – all while enabling free transactions for our merchants. This role sits at the heart … container orchestration tools such as Docker and Kubernetes Solid understanding of SQL and NoSQL databases, distributed systems, and the trade-offs that come with high-availability requirements Comfort navigating complex, regulated environments — whether that’s financial services, payments, or similarly high-stakes domains A collaborative, product-oriented ...

Product Engineering Environment Lead

Hiring Organisation
Randstad Technologies
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£600.00 - £650.00 per day
Opportunity In this role, you will take lead in transforming a complex, fragmented technical estate into an automated, high-performing environment. Operating within an enterprise-scale hybrid framework, you will streamline dev, test, and production environments across private cloud, public cloud, network topologies, and specialized physical hardware. Your Impact … Operating Model Transformation: Clarify responsibilities across SDLC and SRE functions to define clean ownership, clear interfaces, and improved throughput. Estate Stabilization: Improve availability, consistency, and provision lead times-especially across environments integrated with physical hardware. Resilience & Disaster Recovery: Mature High Availability posture, resolve critical risks, and establish ...

Product Engineering Environment Lead

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day
Opportunity In this role, you will take lead in transforming a complex, fragmented technical estate into an automated, high-performing environment. Operating within an enterprise-scale hybrid framework, you will streamline dev, test, and production environments across private cloud, public cloud, network topologies, and specialized physical hardware. Your Impact … Operating Model Transformation: Clarify responsibilities across SDLC and SRE functions to define clean ownership, clear interfaces, and improved throughput. Estate Stabilization: Improve availability, consistency, and provision lead times-especially across environments integrated with physical hardware. Resilience & Disaster Recovery: Mature High Availability posture, resolve critical risks, and establish ...

React Native Engineer

Location
Greater London, England, United Kingdom
Agile Scrum, and ensure deadlines and production quality. To spearhead creative solutions for API and backend related challenges. To manage platform infrastructure for scalability, high availability, and security. To ensure product scalability, high availability, and top-notch code quality. To analyze performance, identifying bottlenecks, and scaling … backend systems. To resolve complex issues by identifying root causes and implementing solutions. To implement robust logging, monitoring and alerting to maintain high availability. To build, operate, and secure the APIs, backend, and even cloud infrastructure. To incorporate security best practices into the API design and implementation. To evaluate ...

Active Directory Engineer

Hiring Organisation
DGH Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700 per day
Microsoft Authenticator, Intune, Windows Defender for Identity and role/group management. Maintain and enhance core infrastructure across on-premises and cloud environments, ensuring high availability, performance and resilience. Monitor infrastructure, troubleshoot issues proactively and implement improvements to minimise service disruption. Lead infrastructure changes, application deployments and platform … access management. Strong PowerShell scripting skills, including creating, testing and maintaining automation. Experience supporting hybrid infrastructure across on-premises and cloud environments. Knowledge of high availability, disaster recovery, clustering, server migrations, upgrades and security patching. Experience delivering infrastructure projects and managing operational priorities. Understanding of IT service management ...

LEAD ADMINISTRATOR L1(CONTRACT)

Location
Greater London, England, United Kingdom
scale IQ databases with terabyte-level storage and ensure optimal bulk loading performance using BCP, IQ load utilities, or ETL tools. Configure and support high-availability solutions such as Sybase Replication Server, Warm Standby, MSA, Failover Clustering, and disaster recovery strategies. Automate database administrative tasks using Shell/… hands‐on experience in delivering large‐scale infrastructure/data center migration and infrastructure/data center upgradation/modernization projects within the global high availability banking/financial services environment.. Areas of responsibility Triaging and resolution of tickets-Provide resolution to high priority incident (P2) tickets ...

Senior Cloud Developer

Hiring Organisation
Framestore
Location
London, UK
Employment Type
Full-time
cloud-first and machine learning strategies, writing the core software and automation that drives them. In this role, you will be actively developing high-availability automation workflows and building resilient big data pipelines that scale compute across the business. You will provide cloud and systems support for developers … data infrastructure for handling large metadata datasets and media assets, whilst identifying opportunities to reduce infrastructure spend without compromising performanceRequirementsEssential Skills: Experience designing high-availability, multi-environment cloud infrastructure using IaC (ideally Terraform) and container orchestrationProven track record in the design and management of cloud-based data systems ...

z/OS Mainframe Storage Engineer

Location
Greater London, England, United Kingdom
replication technologies, and storage software lifecycle management. The role also involves infrastructure design, hardware upgrades, automation initiatives, and proactive monitoring to ensure maximum performance, availability, and resilience of business-critical systems. The ideal candidate will possess deep expertise in IBM mainframe storage technologies, strong problem-solving skills … reporting tools. Experience with enterprise-scale storage migration projects. Familiarity with storage automation and infrastructure modernization initiatives. Understanding of IBM Parallel Sysplex and GDPS high availability architectures. Experience supporting global data centers and geographically dispersed environments. Exposure to audit, compliance, and regulatory requirements within financial services organizations. ...

Senior Platform Engineer

Location
Greater London, England, United Kingdom
rest of engineering thinks about systems. Your Responsibilities in this Role Build and improve the cloud infrastructure powering NALA and Rafiki, ensuring high availability, scalability and security across our systems. Improve developer experience through automation, self-serve tooling and infrastructure-as-code practices that increase engineering velocity. … Experience improving CI/CD pipelines and deployment automation in fast-moving engineering teams. Comfortable debugging production issues and participating in incident response in high-availability environments. Clear communication skills and the ability to work closely with software engineers across multiple teams. You get excited about owning something ...

Database Administrator

Location
Greater London, England, United Kingdom
investment management. We believe in traditional relationship and service-led banking powered by modern technology. Job Purpose Ensure the performance, security, integrity, and availability of enterprise database platforms across Oracle and SQL Server environments, supporting critical business operations and data-driven services. Drive continuous optimisation and rationalisation … where needed modernise database security, access controls, and compliance measures Ensure data integrity through validation, consistency controls, and operational processes Maintain robust resilience and high availability solutions across environments Rationalise and consolidate database estates to reduce complexity and cost Monitor database platforms proactively and resolve incidents within agreed ...

Lead DevSecOps Engineer

Location
Greater London, England, United Kingdom
backed by globally renowned investors including Index Ventures (Anthropic, Wiz, Figma, Revolut). Our company is being built by exceptional engineers - people who find high-impact and technically challenging work engaging and exciting, and who consistently deliver outsized impact. You will collaborate with other brilliant minds to solve some … will directly influence the design, functionality, and direction of Arondite’s product offering. We hire the best people and give them extremely high levels of autonomy; the sky is the limit for an individual with the right ambition. If you are motivated by our mission and if you want ...

PostgreSQL DBA - AWS, Aurora, RDS - REMOTE

Hiring Organisation
Henderson Scott
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£500 - £525 per day
Aurora, Amazon RDS, SC Cleared Role Overview: An urgent contract opportunity has arisen for an SC Cleared PostgreSQL Database Administrator (DBA) to join a high-profile public sector project. This role is fully remote and falls inside IR35 . The Role: You will be responsible for managing, tuning … scaling mission-critical database infrastructure hosted in secure cloud environments. Working closely with engineering and DevOps teams, you will ensure optimal performance, high availability, and strict adherence to government security standards. Core Responsibilities: Design, configure, and manage PostgreSQL, Amazon Aurora, and Amazon RDS instances. Drive database performance tuning ...

PostgreSQL DBA - AWS, Aurora, RDS - REMOTE

Hiring Organisation
Henderson Scott
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 - 525 Daily
Aurora, Amazon RDS, SC Cleared Role Overview: An urgent contract opportunity has arisen for an SC Cleared PostgreSQL Database Administrator (DBA) to join a high-profile public sector project. This role is fully remote and falls inside IR35 . The Role: You will be responsible for managing, tuning … scaling mission-critical database infrastructure hosted in secure cloud environments. Working closely with engineering and DevOps teams, you will ensure optimal performance, high availability, and strict adherence to government security standards. Core Responsibilities: Design, configure, and manage PostgreSQL, Amazon Aurora, and Amazon RDS instances. Drive database performance tuning ...

Software Engineer (EMS)

Location
Greater London, England, United Kingdom
generation multi-region, multi-tenanted Execution Management System (EMS) platform. The ideal candidate will have experience building concurrent, performance sensitive systems where correctness and high availability are maintained across multiple regions to meet the stringent demands of our global trading customers. Key Responsibilities Platform Development: Design and implement … latency, high-throughput systems for a multi-region, multi-tenanted EMS platform, ensuring compliance with industry standards. Latency Optimisation: Analyse and optimise critical paths in the system to reduce latency and improve performance. Distributed Systems: Maintain distributed, fault-tolerant systems with high availability across multiple regions, ensuring ...

Senior Software Developer

Location
Greater London, England, United Kingdom
support Strong analytical and problem-solving skills, with a passion for clean, efficient, and maintainable code Experience in enterprise SaaS industries, or with complex, high-availability platforms, would be beneficial Core Competencies Demonstrates expertise in designing and developing enterprise-level software solutions using C#, .NET/.NET Core … Optimisation Query Tuning Software Development Lifecycle Soft Skills Analytical Skills Problem-Solving Skills Collaboration Knowledge Sharing Clean Code Practices Industry Keywords SaaS Enterprise Software High-Availability Platforms Agile Delivery Methods Tools & Technologies Visual Studio VS Code Azure DevOps CI/CD Pipelines Development Tooling #J-18808-Ljbffr ...

Distinguished Engineer

Location
Greater London, England, United Kingdom
Distinguished Engineer - UK (remote) - High-availability Systems - £225k + package Hybrid Distinguished Engineer, with strong experience developing and designing high-availability, distributed systems is now required by a market leading trading house. This is a hands-on role combining coding with a focus on designing scalable … secure, and high throughput systems, as well as leading across the org's modernisation projects Key Responsibilities: Lead architecture and design of complex software solutions. Mentor engineering teams and guide technical decision-making. Drive best practices across architecture, code quality, and delivery. Required Skills & Experience: Excellent background ...

IBM Netcool / Observability Technical Lead

Hiring Organisation
Deerfoot Recruitment Solutions Ltd
Location
London, United Kingdom
Employment Type
Full-Time
Salary
£780.00 - £830.00 per day
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 ...

IBM Netcool / Observability Technical Lead

Hiring Organisation
Deerfoot Recruitment Solutions
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£780 - £830 per day
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 ...

Senior Sybase DBA – High-Availability & Data Migration Expert

Location
Greater London, England, United Kingdom
design, implement, and maintain Sybase ASE and IQ databases across Linux/Unix. You will tune performance, manage backups, ensure security, and support high-availability and disaster recovery strategies. The role focuses on large-scale data infrastructure, ongoing migrations, and close collaboration with developers and infrastructure teams ...