1 to 25 of 201 Permanent High Availability Jobs in the UK

Senior Backend Engineer Golang Overview We are seeking a deeply technical and security-minded Senior Backend Engineer to join a newly-founded, high-impact AI joint venture. Backed by five of the world's leading telecommunications giants, our mission is to restore trust in global voice communication. Our mission is to restore trust in voice communication by building a … from the moment a caller stops speaking to the moment our AI begins its response. You won't just be integrating APIs; you will be architecting the real-time, high-throughput nervous system of our core AI product. Key Responsibilities AI Orchestration & Core Logic Own the end-to-end backend architecture for the Personal Welcome Manager, our flagship conversational … application logic for all Welcome Manager features, including intent-capture, post-call summarization with entity extraction, and error handling. API & Application Development Design, build, and scale the mission-critical, high-availability RESTful APIs that serve our mobile clients (Android-first). Architect and manage the real-time streaming data flows (audio and text) required for the live transcription More ❯

Senior Backend Engineer (Golang) Overview We are seeking a deeply technical and security-minded Senior Backend Engineer to join a newly-founded, high-impact AI joint venture. Backed by five of the world's leading telecommunications giants, our mission is to restore trust in global voice communication. Our mission is to restore trust in voice communication by building a … from the moment a caller stops speaking to the moment our AI begins its response. You won't just be integrating APIs; you will be architecting the Real Time, high-throughput nervous system of our core AI product. Key Responsibilities AI Orchestration & Core Logic Own the end-to-end Back End architecture for the Personal Welcome Manager, our flagship … application logic for all Welcome Manager features, including intent-capture, post-call summarization with entity extraction, and error handling. API & Application Development Design, build, and scale the mission-critical, high-availability RESTful APIs that serve our mobile clients (Android-first). Architect and manage the Real Time streaming data flows (audio and text) required for the live transcription More ❯

Type: Permanent About the Role: Our employer-partner is seeking a Senior Software Engineer with deep experience in Rust and/or C++ to design and build high-performance, distributed, and mission-critical systems. You will play a key role in shaping next-generation telecom and real-time communication platforms used in high-availability environments. Key Responsibilities … Architect scalable distributed systems with a strong focus on low-latency and high throughput. Build and optimise systems-level components using Rust, C++, C, or Java . Design and implement APIs and real-time communication protocols (SIP, VoIP, 5G, RTC). Improve platform reliability, stability, and performance (99.99%+ uptime environments). Lead performance tuning, fault-tolerance engineering, and … high-availability architecture reviews. Implement CI/CD workflows, containerisation, and systems monitoring (Docker, Kubernetes). Troubleshoot complex system bottlenecks in high-pressure environments. Provide mentorship, code reviews, and knowledge sharing within engineering teams. Required Skills & Experience: 5+ years in systems programming (Rust, C++, C ). Strong background in telecoms , VoIP, SIP, real-time protocols, or distributed More ❯

in the development, maintenance, and enhancement of the organisation’s web-based applications and supporting infrastructure. This is an excellent opportunity for a technically strong developer with experience in high-availability environments who is keen to support new initiatives, including the implementation of CI/CD pipelines via Azure DevOps. Key Requirements of the Full Stack Developer: Proven … experience in full stack development using C#, .NET, and modern JavaScript frameworks. Strong understanding of web application architecture and high-availability environments. Hands-on experience with load balancing and request routing technologies, ideally NetScaler or similar. Proficiency in managing and deploying web applications across multiple servers. Good knowledge of SQL Server and database performance optimisation. Familiarity with Azure … to development. Key Responsibilities of the Full Stack Developer: Design, develop, and maintain scalable web-based applications using C#, .NET, and JavaScript frameworks. Support and enhance the organisation’s high-availability environment, ensuring performance and reliability. Work with NetScaler for load balancing, SSL offloading, and application-level routing logic. Manage and maintain the organisation’s source control systems More ❯

Are you an experienced systems-level engineer craving impact We’re seeking a Senior Software Developer versed in Rust, or an equivalent systems language, who thrives in high-availability, mission-critical environments. Our client is a fast-growing technology provider delivering next-generation communications solutions to a global customer base. With ambitious growth plans and investment backing, this … forward-thinking engineering team where you’ll make a real impact. You’ll play a key role in architecting, building, and optimising telecommunications systems in Rust , contributing to secure, high-performance, and scalable solutions used worldwide. You’ll collaborate closely across DevOps, API (Java), front-end, and database teams, and be empowered to drive meaningful architectural and reliability improvements. … What You’ll Do Build and scale : Develop production-grade features in Rust (or onboard quickly if transitioning from C/C++). High-availability focus : Help ensure uptime and performance in a real-time, mission-critical telecom platform. Collaborate broadly : Work across disciplines to improve stability, maintainability, and scalability. Mentor and learn : Benefit from peer mentoring, and More ❯

its multi-purpose platform, designed to offer a simple and seamless user experience. Role Summary: The Head of Infrastructure will define and lead the cloud infrastructure strategy for a high-growth, regulated FinTech operating in Saudi Arabia and expanding globally. This role is accountable for ensuring scalability, reliability, and regulatory compliance — with particular emphasis on data residency, business continuity … and disaster recovery. The ideal candidate combines strong technical depth with strategic leadership to build a secure and high-performing cloud environment. Key responsibilities: Design and manage a secure, high-availability, and scalable cloud infrastructure on GCP capable of supporting 1M+ users and 200M+ annual transactions. Ensure full regulatory compliance by embedding data residency, business continuity, and … service reliability engineering (SRE). Automate and optimize infrastructure using Infrastructure-as-Code (IaC), cost governance, and performance tuning to achieve efficiency and scalability. Lead and collaborate — building a high-performing infrastructure and DevOps team while partnering with security, compliance, and engineering functions to ensure resilience and audit readiness. Qualifications & Skills: 10+ years in infrastructure engineering, operations, or cloud More ❯

Technology, you will be responsible for designing, implementing, and maintaining robust database solutions that support enterprise infrastructure services. This role involves working with cloud and on-premises databases, ensuring high availability, security, and performance while supporting database migrations, automation, and modernization efforts. You will collaborate with cross-functional teams to optimize database architectures and contribute to the continuous … improvement of infrastructure services. Key Responsibilities: Lead and manage database infrastructure services, including deployment, migration, and administration of databases (SQL, Oracle, PostgreSQL, etc.). Ensure high availability, security, and optimal performance of database environments. Support the development and execution of database infrastructure strategies and modernization projects. Monitor and maintain database health, backups, disaster recovery, and performance tuning. Collaborate More ❯

Demonstrate a good understanding of PostgreSQL database architecture, including memory management, indexing, and query optimization. Handle performance issues by analyzing query execution plans, tuning configurations, and implementing best practices. High Availability & Clustering: Implement and manage repmgr cluster technology for high availability and failover. Troubleshoot and resolve cluster node failure issues promptly to minimize downtime. Migration & Cloud More ❯

role will include working as part of multidisciplinary team to design and develop solutions such as using Azure/AWS as well as datacentre/private cloud to deliver high availability, rapidly developed, fully automated solutions using predominately open-source software which delivers value to the customer. Role responsibilities: Interacting with project roles as required, to gain an … technologies and methodologies, designing and implementing innovative approaches to their problems using automation. Understanding security policies and implementing solutions to satisfy security requirements. Designing and implementing solutions which have high availability and are scalable. What you will bring to the team: Enthusiasm for collaboration and excellent communication skills (written and verbal). An interest in keeping up with More ❯

to deliver a robust, scalable network environment that meets the Trust's operational and clinical requirements. All infrastructure must comply with NHS technology standards and underpin the delivery of high-quality patient care and organizational efficiency. Main duties of the job Lead the design, planning, configuration, and maintenance of the Trust's enterprise network infrastructure, including LAN/WAN … network hardware, including switches, routers, and wireless access points, to maintain optimal service levels. Maintain and optimize core network services such as DNS, DHCP, and IP address management, ensuring high availability and security. Align all network and communications initiatives with the Trusts DDaT strategy, supporting future objectives through upgrades and adoption of innovative technologies. Develop and enforce standardized … service providers and third-party vendors, including negotiating contracts, managing Service Level Agreements (SLAs), and ensuring timely resolution of escalated issues. Operational management of network and telecoms services, ensuring high availability, reliability, and compliance with NHS IT governance and security standards. Financial management experience, including budgeting, cost control, and demonstrating value for money in managing network infrastructure and More ❯

for both transactional and analytical workloads across Cloud SQL (MySQL) and BigQuery, ensuring performance, reliability, security, and cost-efficiency. This is a hands-on role where you'll manage high availability setups, performance tuning, disaster recovery planning, automation, and observability. You'll also mentor engineers, maintain documentation, and manage third-party relationships. What you'll need to succeed … other scripting/IaC tools. Familiarity with monitoring tools like Cloud Monitoring or New Relic. Solid understanding of database security, IAM, encryption, and audit logging. Proven operational experience with high availability, backups, disaster recovery, and change management. Excellent documentation and stakeholder communication skills. Bonus points for experience with Couchbase, Redis, Kubernetes, Airbyte, Laravel, and Agile methodologies. GCP certifications More ❯

seamless operations. Work with virtual cloud firewall appliances (e.g., CheckPoint, Cisco) to ensure network security. Implement and manage routing protocols such as BGP and OSPF, with a focus on high-availability designs. Ensure adherence to software engineering best practices, including unit testing, code reviews, and troubleshooting. Support infrastructure-as-code practices using tools like Terraform, Pulumi, and GitOps … in virtual cloud firewalls (CheckPoint, Cisco) and cloud security best practices. Strong Python programming skills for automation, API integration, and orchestration. Proven knowledge of routing protocols (BGP, OSPF) and high-availability architecture. Hands-on experience with Infrastructure-as-Code tools (e.g., Terraform, Pulumi) and GitOps methodologies. Expertise in software engineering practices: unit testing, code reviews, documentation, debugging, and More ❯

seamless operations. Work with virtual cloud firewall appliances (e.g., CheckPoint, Cisco) to ensure network security. Implement and manage routing protocols such as BGP and OSPF, with a focus on high-availability designs. Ensure adherence to software engineering best practices, including unit testing, code reviews, and troubleshooting. Support infrastructure-as-code practices using tools like Terraform, Pulumi, and GitOps … in virtual cloud firewalls (CheckPoint, Cisco) and cloud security best practices. Strong Python programming skills for automation, API integration, and orchestration. Proven knowledge of routing protocols (BGP, OSPF) and high-availability architecture. Hands-on experience with Infrastructure-as-Code tools (e.g., Terraform, Pulumi) and GitOps methodologies. Expertise in software engineering practices: unit testing, code reviews, documentation, debugging, and More ❯

maintaining Microsoft SQL Server databases as a SQL Database Administrator Supporting Azure PaaS databases, including Azure SQL and Managed Instances Managing backups, restores, and recovery models Implementing and maintaining High Availability (HA) and Disaster Recovery (DR) solutions Troubleshooting database connection issues, including server firewall, proxy, and networking challenges Performing performance tuning and optimisation (PTO) to keep systems running … Warehouse and ETL/data pipelines (ADF) Proficiency in Database Access Management Expertise in SQL Server Administration, Performance Tuning & Optimisation Experience with backups, restores, and recovery models Knowledge of High Availability (HA) and Disaster Recovery (DR) solutions Ability to support Azure PaaS databases (Azure SQL, Managed Instances) SQL data migration experience Strong troubleshooting skills and networking understanding Scripting More ❯

KEY POINTS * Up to £70,000 salary* Hybrid working with three days a week onsite in Greater Manchester* Modern SRE environment with cloud-native tooling (AWS, Kubernetes, Terraform)* High-availability digital platforms and performance-critical workloads ABOUT THE CLIENT We're supporting a well-established UK organisation recognised for operating large-scale, high-availability digital services. … engineering maturity, they're looking to appoint an experienced Site Reliability Engineer to strengthen a growing SRE function. THE BENEFITS * Exposure to modern cloud-native tooling and reliability practices* High-impact role supporting major digital events* Strong engineering culture with collaboration across product, operations and platform teams THE SITE RELIABILITY ENGINEER ROLE: As a Site Reliability Engineer, you'll … insights, and build dashboards that provide clear visibility of system health. You'll also contribute to performance testing strategies and collaborate with engineering, operations and compliance teams to maintain high standards across the platform. SITE RELIABILITY ENGINEER ESSENTIAL SKILLS * Strong understanding of reliability engineering, scalable architectures and performance optimisation * Experience with observability, debugging and incident response* Proficiency in a More ❯

bonus 4 DAYS PER WEEK IN LONDON OFFICE - St James/Green Park AZ-700, Juniper, Palo Alto firewalls, Azure Cloud Networking Scripting - either Terraform or Powershell Network monitoring, high availability hybrid Cloud environment (Azure) Global Investment Fund Manager 4 days in the London office, 1 day WFH This impressive, privately owned Investment Fund Manager is seeking an … experienced Network Engineer to join their small IT team in London. Reporting to the Head of Infrastructure, you will take ownership of ensuring high availability of a complex hybrid Cloud environment working with Juniper, Palo Alto firewalls, routers, switches, load balancing and WiFi access points. They have a Azure Cloud environment so experience with networking in this setup More ❯

Years Detailed JD: A Kafka Real-Time Architect is responsible for designing and implementing scalable, real time data processing systems in Kafka. This role involves architecting Kafka cluster, ensuring high availability, and integrating with other data processing tools and platforms As part of the CTO Data Ingestion Service, the incumbent will be required to: Designing and architecting scalable … real-time systems in Kafka. Configuring, deploying, and maintaining Kafka clusters to ensure high availability and scalability. Integrating Kafka with other data processing tools and platforms such as Kafka Streams, Kafka Connect, Spark Streaming Schema Registry, Flink and Beam. Collaborating with cross-functional teams to understand data requirements and design solutions that meet business needs. Implementing security measures More ❯

of the job To provide Management and support for the Trust's wide and Local Area Networks in conjunction with the Network Infrastructure Manager. Provide infrastructure support to ensure high availability, security and usability of the network that is transparent to users. Work closely with the Network infrastructure engineers and associates to ensure any routine work is up … communities such as health centres. We give people greater choice and control over their care to help them to live independently at home and avoid hospital admission where appropriate. High quality patient care is at the heart of everything we do and we strive to ensure every single patient and service user has an exceptional experience with us. We … have one of the most extensive patient experience programmes of any trust in England. Job description Job responsibilities To ensure high availability, security and usability of the network that is transparent to users. Liaise with suppliers to ensure effective implementation of the design, by co-ordinated implementation of the new infrastructure. To document network infrastructure as it is More ❯

a focus on routers, switches, firewalls, and advanced data networking solutions. The candidate will also play a strategic role in cloud connectivity, hybrid solutions, and SD-WAN deployments, ensuring high availability, reliability, and performance across global network infrastructure. Key Responsibilities: 1. Network Infrastructure Management: Manage, configure, and troubleshoot routers, switches, and firewalls to ensure secure and reliable connectivity. … hybrid and multi-cloud integrations. Ensure network reliability and scalability through proactive planning and implementation. 4. Network Monitoring and Management: Administer over 6K+ network devices across 550+ circuits, maintaining high availability and performance. Implement automation and monitoring tools to reduce manual intervention and optimize network efficiency. Perform capacity planning, monitoring, and regular audits of network infrastructure. 5. Incident More ❯

local network environments, including Dell servers and Dell switch configurations. Strong technical expertise in Microsoft Active Directory (AD), Windows Server environments, and authentication solutions. Plan for scalability, redundancy, and high availability to support future growth. IT Security & Compliance: Ensure compliance with security and regulatory standards, including PCI DSS, Cyber Essentials+, DORA, and ISO 27001. Implement and enforce security … best practices across infrastructure automation and cloud environments. Maintain accurate compliance documentation, including PCI DSS scope records and security policies. Secure high-value and high-risk data, such as cardholder (PCI) and personally identifiable information (PII). Cloud & Automation (these tools and skills will be taught): Implement and manage Infrastructure as Code (IaC) for cloud and on-premises … but is not essential. Desirable (but not required) experience: Some interest in learning and using automation tools such as Azure DevOps, Terraform, Node-Red, Packer. Proven ability to secure high-value data (PCI cardholder data, PII) and implement security best practices. Scripting and automation skills (PowerShell, Python, Bash, or similar). Ability to design, implement, and maintain CI/ More ❯

Database, App Services, Azure Functions, and container services (ACI, AKS). Proficient in Azure Monitor, Log Analytics, Application Insights, cost management and optimisation, resource tagging strategies, and maintaining platform availability through proactive monitoring and incident response. Infrastructure as Code (Terraform) - Strong working knowledge of Terraform for provisioning and managing Azure infrastructure including writing and maintaining Terraform modules for Azure … and managing Backup for VMs, SQL databases, and file shares, Azure Site Recovery for disaster recovery, automated snapshot policies, geo-redundant storage configurations, and backup vault management. Understanding of high availability architectures using Availability Zones, Azure Load Balancer, Azure Application Gateway, VM Scale Sets, and conducting DR tests to ensure business continuity. Collaboration & Incident Response - Strong team More ❯

possibility to play a key role in building mission-critical financial applications that power trading, investment, and risk management systems across the firm. Key Responsibilities: Design, develop, and maintain high-performance Back End services using GoLang to support financial applications and services, including trading platforms, investment systems, and risk management tools. Build and deploy cloud-based solutions using Amazon … stakeholders to define and refine requirements, and ensure that applications meet financial regulatory standards and business needs. Optimize the performance of Back End services, ensuring low-latency responses and high availability, critical for financial services. Implement CI/CD pipelines, automated testing, and monitoring systems to ensure the reliability and stability of production systems. Proactively identify issues and … continuously improve development practices and outcomes. Ideal Skills: Proven experience (4+ years) in GoLang Back End development, with a strong focus on performance optimization and building scalable systems for high-volume, high-frequency financial applications. Strong experience working with Amazon Web Services (AWS), including EC2, S3, RDS, DynamoDB, Lambda, and other cloud-native technologies. Hands-on experience with More ❯

Lead IT Infrastructure Engineer to join our Marine Systems client. In this pivotal role, you will be responsible for the design, implementation, and management of our IT infrastructure, ensuring high availability, scalability, and security of our systems. You will also provide leadership to a team of infrastructure engineers and contribute to key strategic decisions in the development of More ❯

businesses. The Role Hiring a Senior Fullstack Engineer to build scalable Java microservices for core banking platforms. Take ownership of key components and work with a talented team on high-performance financial solutions. What you'll do as a Senior Fullstack Engineer: Design and develop Java microservices (Spring Boot, Hibernate/JPA) for backend systems Build cloud-native solutions … using Java integrated with banking platforms Develop full-stack features with JavaScript frameworks (Angular) Champion CI/CD, TDD/BDD, and engineering best practices Optimize Java applications for high-volume, high-availability systems What You Need 5+ years experience as a Software Engineer with strong Java/J2EE expertise (Java 8+, Spring, Hibernate) Frontend Angular experience More ❯

businesses. The Role Hiring a Senior Fullstack Engineer to build scalable Java microservices for core banking platforms. Take ownership of key components and work with a talented team on high-performance financial solutions. What you'll do as a Senior Fullstack Engineer: Design and develop Java microservices (Spring Boot, Hibernate/JPA) for backend systems Build cloud-native solutions … using Java integrated with banking platforms Develop full-stack features with JavaScript frameworks (Angular) Champion CI/CD, TDD/BDD, and engineering best practices Optimize Java applications for high-volume, high-availability systems What You Need 5+ years experience as a Software Engineer with strong Java/J2EE expertise (Java 8+, Spring, Hibernate) Frontend Angular experience More ❯