26 to 50 of 132 High Availability Jobs in London

DevOps Engineer - Mid or Senior

Hiring Organisation
Tank Recruitment
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 50,000 - 85,000 Annual
Data Science, and National Security . My client is looking for a DV-cleared DevOps specialist to join a division dedicated to solving high-stakes challenges that drive genuine societal change. This is a rare opportunity for a cleared professional to step out of "legacy" environments and work with … Engineer ( 50k - 65k): You'll be the engine room of the deployment cycle-building robust CI/CD pipelines, automating AWS environments, and ensuring high-availability for complex AI solutions. Senior Engineer ( 65k - 85k): You will take a "player-coach" approach-architecting bespoke infrastructure, mentoring rising talent ...

Senior DevOps Engineer (DSA BAU)

Hiring Organisation
Capita Shared Services Limited
Location
West London, London, United Kingdom
Employment Type
Permanent
Salary
£60,000
environment stability and release governance, and partner closely with Salesforce, MuleSoft, QA, and Operations. You will be responsible for ensuring seamless software delivery through high-quality automation and robust deployment strategies. *CANDIDATES MUST BE ELIGIBLE FOR SC CLEARANCE* What you'll be doing: CI/CD Pipeline Management: Design … Ansible to automate infrastructure provisioning and maintain consistency across environments. MuleSoft Integration: Oversee deployment and lifecycle management for MuleSoft APIs and integrations, ensuring high availability and reliability. (CloudHub 2.0, Runtime Manager, properties encryption, secret management via Azure Key Vault). How this aligns to Capita's values: Customer ...

Senior Infrastructure Engineer

Hiring Organisation
Context Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £80,000 per annum
Plan and execute migrations, including tenant-to-tenant Microsoft 365 and Active Directory consolidations Collaborate with managed service providers and internal teams to maintain high availability, security and compliance Support business continuity through proactive monitoring, incident management and disaster recovery planning Mentor and provide technical guidance to team ...

EBSA - IDAM DevOps

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700/day
Schema design and directory structuring Secure authentication integration (LDAPS, certificates, RBAC mapping) Kubernetes authentication via LDAP Identity federation patterns across CI/CD tooling High availability and replication strategies Troubleshooting directory performance and sync issues Jenkins (CI/CD Architecture & Engineering) Pipeline-as-code (Groovy) Shared libraries ...

Terraform Infrastructure Engineer / IaC SME

Hiring Organisation
Salt Search
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £700 per day
development teams to ensure continuous integration and delivery (CI/CD) pipelines are efficient and effective Monitor system performance and troubleshoot issues to ensure high availability and reliability Implement security best practices and ensure compliance with industry standards Optimize infrastructure costs and resource utilization Develop infrastructure as code ...

Junior Software Engineer

Hiring Organisation
Visa
Location
London, UK
Employment Type
Full-time
Docker, EKS, AWS (public cloud) and Kafka Clear, structured communication, ability to explain your solutions and ask good questions. Interest in cloudnative practices: high availability, scalability, CI/CD, testing automation, and observability. Experience writing tests (JUnit, Cucumber, or similar) in project work. Curiosity about DevOps ...

Principal Network Solution Architect

Hiring Organisation
CACI Ltd
Location
City of London, London, United Kingdom
prospective customers (new logos). Engage with stakeholders from C-level executives to technical engineering teams , translating complex technical and business requirements into high‐level and detailed technical architectures. Provide expert consultancy on network strategy, transformation roadmaps, best practices, and emerging technologies. Build strong, long-term relationships that support … security technologies. Ensure all designs are scalable, resilient, secure, and aligned to customer requirements, technical strategy, and industry best practices Lead creation of high-quality architectural documentation, including HLA, HLD, LLD, standards, and design patterns. Ensure designs align with industry best practices, compliance requirements, and customer governance processes. ...

Chief Network Architect

Hiring Organisation
CACI Limited
Location
West London, London, United Kingdom
Employment Type
Permanent
prospective customers (new logos). Engage with stakeholders from C-level executives to technical engineering teams , translating complex technical and business requirements into high-level and detailed technical architectures. Provide expert consultancy on network strategy, transformation roadmaps, best practices, and emerging technologies. Build strong, long-term relationships that support … security technologies. Ensure all designs are scalable, resilient, secure, and aligned to customer requirements, technical strategy, and industry best practices Lead creation of high-quality architectural documentation, including HLA, HLD, LLD, standards, and design patterns. Ensure designs align with industry best practices, compliance requirements, and customer governance processes. ...

Principal Network Architect (Consultant)

Hiring Organisation
CACI Network Services
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
prospective customers (new logos). Engage with stakeholders from C-level executives to technical engineering teams , translating complex technical and business requirements into high-level and detailed technical architectures. Provide expert consultancy on network strategy, transformation roadmaps, best practices, and emerging technologies. Build strong, long-term relationships that support … security technologies. Ensure all designs are scalable, resilient, secure, and aligned to customer requirements, technical strategy, and industry best practices Lead creation of high-quality architectural documentation, including HLA, HLD, LLD, standards, and design patterns. Ensure designs align with industry best practices, compliance requirements, and customer governance processes. ...

IT Manager Linux

Hiring Organisation
Colt Technology Services UK
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
responsible for supporting approximately 4000 Linux systems that underpin critical business applications. They will deliver solutions that meet stringent security, compliance, and availability requirements while troubleshooting complex issues and driving operational excellence. What you'll do Lead and mentor a team of Linux engineers, fostering technical growth and collaboration. … infrastructure and related services. Develop and enforce operating procedures for secure and efficient system management. Design and deliver solutions that meet security, compliance, and high availability standards. Drive automation initiatives using Ansible and other tools to streamline operations. Oversee patching, hardening, and configuration management in line with best ...

Cloud Engineer

Hiring Organisation
Morson Edge (Financial Services)
Location
London Area, United Kingdom
Cloud Platform Engineering Lead A high performing London Market Syndicate is looking for a Cloud Platform Engineering Lead to join them on a permanent basis. This is an excellent business to join as they are consistent ranked in the top quartile for performance across the market. The Role This … security controls, policies, and technical guardrails in line with standards such as NIST and ISO. Lead cloud cost management and FinOps practices, ensuring performance, availability, and spend are optimised and transparent. Act as the senior technical escalation point for cloud security incidents and major outages, ensuring high availability ...

Principal Engineer (.Net) - up to £100,000 + Bonus - Hybrid

Hiring Organisation
Involved Solutions
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £100,000 per annum
millions of customers. This role will focus on engineering leadership, modern architecture, cloud-native delivery and driving best practice across multiple teams within a high-scale digital environment. Responsibilities for the Principal .NET Engineer: Define and evolve engineering strategy, standards and best practices across your domain Lead technical direction … across multiple engineering teams and programmes Design and oversee delivery of large-scale, high-availability systems using modern Microsoft technologies Provide expert guidance on technical risk, architecture decisions and prioritisation Support Staff Engineers and delivery teams through hands-on technical leadership Drive adoption of DevOps, CI/ ...

AWS Cloud Engineer / Site Reliability Engineer (SRE)

Hiring Organisation
GTC Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £662/day
Clearance Required Inside IR35 About the Role We’re looking for experienced AWS Cloud Engineers/Site Reliability Engineers (SREs) to join a high-impact programme delivering secure, scalable cloud platforms. This role sits at the intersection of cloud engineering and reliability, focusing on building resilient systems, improving automation … using GitLab CI Implementing monitoring, alerting, and observability with Amazon CloudWatch and Grafana Automating infrastructure, deployments, and operational processes Managing live environments and ensuring high availability and performance Troubleshooting incidents and resolving complex production issues Collaborating with engineering teams to improve system reliability and delivery speed Key Skills ...

Senior Network Engineer

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
across the institution. The successful candidate will contribute to the migration from Cisco to Extreme Networks infrastructure, with a strong focus on delivering robust, high-performing wired and wireless services that meet the needs of students, faculty, and staff. Key Responsibilities Support the design and implementation of network infrastructure … optimisation activities. Execute migration activities, including staging, deployment, testing, and validation. Troubleshoot and resolve complex network issues across LAN, WAN, and WLAN. Ensure high availability and performance of wireless networks, particularly in high-density environments (e.g., lecture halls, student accommodation). Assist with the production and maintenance ...

Senior Network Engineer

Hiring Organisation
Adecco
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £500 per day
across the institution. The successful candidate will contribute to the migration from Cisco to Extreme Networks infrastructure, with a strong focus on delivering robust, high-performing wired and wireless services that meet the needs of students, faculty, and staff. Key Responsibilities Support the design and implementation of network infrastructure … optimisation activities. Execute migration activities, including staging, deployment, testing, and validation. Troubleshoot and resolve complex network issues across LAN, WAN, and WLAN. Ensure high availability and performance of wireless networks, particularly in high-density environments (e.g., lecture halls, student accommodation). Assist with the production and maintenance ...

Senior Data Engineer

Hiring Organisation
Bell Integration
Location
City of London, London, United Kingdom
Senior Data Engineer We’re looking for a Senior Data Engineer to lead the design and delivery of scalable, high-quality data integrations across our organisation. In this role, you’ll take ownership of building reliable, governed integration workflows using Azure Logic Apps and a range of modern Azure … play a key role in shaping our integration landscape, driving continuous improvement, championing DevOps best practices, and mentoring junior engineers to uphold high engineering standards. This is a remote position , with travel to Portsmouth and London as required (circa once per month) , including at least one monthly team-facing ...

Principal Network Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
prospective customers (new logos). Engage with stakeholders from C‐level executives to technical engineering teams , translating complex technical and business requirements into high‐level and detailed technical architectures. Provide expert consultancy on network strategy, transformation roadmaps, best practices, and emerging technologies. Build strong, long‐term relationships that support … security technologies. Ensure all designs are scalable, resilient, secure, and aligned to customer requirements, technical strategy, and industry best practices. Lead creation of high‐quality architectural documentation, including HLA, HLD, LLD, standards, and design patterns. Ensure designs align with industry best practices, compliance requirements, and customer governance processes. Partner ...

SC Cleared AWS DevOps Engineer

Hiring Organisation
Lynx Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
week in London Victoria About the Role We are seeking an experienced AWS DevOps Engineer for an inside IR35 contract role supporting a secure, high-profile programme. The role is hybrid, and the client operates their own payroll , covering employer National Insurance , so contractors can work on a straightforward … Responsibilities Design, build, and maintain AWS cloud infrastructure using DevOps best practices. Implement and support CI/CD pipelines and infrastructure as code. Ensure high availability, security, and performance across AWS environments. Collaborate closely with engineering, security, and delivery teams. Support automation, monitoring, and continuous improvement activities. Skills ...

Cloud Platform Engineering Lead

Hiring Organisation
Arthur
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
Cloud Platform Lead | London | Hybrid (3 days in the office) |Permanent Build the cloud platform that others depend on. We’re partnered with a high-performing, London-based Insurer operating at scale in a highly regulated environment. The organisation is investing heavily in its cloud capability … making You’ll act as the technical authority for cloud, owning standards, guardrails and outcomes, while steering a trusted cloud services partner to deliver high-quality BAU and project work. What you’ll be doing Owning the cloud platform architecture (Azure-first, AWS exposure) Designing and evolving shared platform ...

MuleSoft Architect

Hiring Organisation
Capita Shared Services Limited
Location
West London, London, United Kingdom
Employment Type
Permanent
driven architecture, and RTF networking. Collaborate with security teams to ensure policy enforcement, encryption, identity, and SC-compliant design. Oversee NFRs including performance, scaling, high availability, disaster recovery, and observability. Guide developers and DevOps engineers through build, test, deployment, and operational handover. Ensure alignment with enterprise platforms including … effort estimation, planning, stakeholder engagement, and technical risk management. Contribute to the evolution of C4EE playbooks, templates, governance artefacts, and reusable assets. Key Deliverables High-level and low-level design documents API specifications and sequence diagrams Architecture Decision Records (ADRs) Reusable patterns, templates, and standards Architecture review outputs ...

SQL Server and Data Platform Engineer

Hiring Organisation
Clarksons
Location
London Area, United Kingdom
just database administration. We’re looking for an experienced SQL Server and Data Platform Engineer with strong SQL Server experience to join a high-performing team managing a hybrid data platform including SQL Server (2017–2025), Azure SQL, Cosmos DB, Azure Data Factory, and Power BI. What … reliable and easier to use What We’re Looking For Strong SQL Server experience in production environments Good understanding of performance tuning, indexing, and high availability Experience with upgrades, backups, and disaster recovery Some exposure to Azure SQL or cloud data platforms Interest in automation, scripting ...

Senior Software Engineer

Hiring Organisation
Prism Digital
Location
City Of London, England, United Kingdom
Server WinForms desktop applications Azure Kafka Automated testing frameworks Legacy platform modernisation Nice to Haves Futures, options, or crypto markets Python DevOps tooling High-availability systems Large-scale refactoring work Containerisation (Docker) Why Join/Projects This is one of those environments where the gap between engineering … outcome of what you build, and you’ll have a say in how things are done. Access to leadership is direct, and expectations are high, both technically and academically. Employee Benefits Bonus up to 100% of base salary Highly collaborative, front-office environment Direct access to traders and senior ...

Head of Azure Platform Security

Hiring Organisation
Huxley Associates
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£150000 - £180000/annum
managed services, automated and auditable deployment pipelines, secrets management Nice to Have o Financial services, trading, or capital markets - operational security in a regulated, high-availability, zero-downtime-tolerance environment o Zero-trust architecture: BeyondCorp, Zscaler, or equivalent; conditional access policy design and implementation o DDoS mitigation ...

Consulting Principal Lead (Presales)

Hiring Organisation
Amdocs
Location
London, UK
opportunities preferred. Experience working with a cloud service provider (AWS, Azure, or GCP), preference for cloud data skills. Experience in large-scale, secure, and high-availability solutions with multi–AZ Cloud Architecture. Significant experience with cloud modernization and migration solutioning: Discovery, Assessment, Roadmap, SOW Creation, Migration Planning ...

Principal Rust Engineer

Hiring Organisation
Ncounter
Location
East London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£160,000 - £180,000 per annum
compute frameworks that underpin trading, quant research, and large-scale data processing across the organisation. This is a deeply technical engineering role focused on high-performance systems, scalability, and platform reliability. You’ll work on foundational technology used by multiple engineering and investment teams, helping to shape the infrastructure … powering a world-class trading environment. What you’ll do: • Design, build, and maintain scalable distributed systems and internal frameworks using Rust • Develop high-throughput services and tooling used across research and trading platforms • Work closely with investment and technology stakeholders to deliver robust, production-grade solutions • Contribute across ...