1 to 25 of 186 Permanent High Availability Jobs in London

Senior Backend Engineer (Application & AI Orchestration) 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 … 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 ResponsibilitiesAI Orchestration & Core Logic Own the end-to-end Back End 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 (Application & AI Orchestration) 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 … 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 ❯

to our customers. Responsibilities Become part of an established team adept at collaboration and task allocation. A team which can focus on generating direct impact. Make key contributions to high availability solutions in close collaboration with your team through your ability and willingness to take ownership and assist where needed. Your contributions will be thorough and result in … Spring-based backend services. Experience in the full lifecycle of service management, from initial development to continuous operation. A deep understanding of the critical aspects of service scalability and high availability as well as monitoring and maintaining deployed features and services ensuring optimal performance and reliability. Database management systems experience including replication, high availability, performance tuning More ❯

You will lead a team of skilled network engineers, define the enterprise networking roadmap, and collaborate with cross-functional teams — including Security, Infrastructure, and IT Operations — to deliver a high-performance, high-availability network platform that underpins mission-critical business and customer operations. Key Responsibilities Strategic Leadership Define and execute the strategic vision for enterprise and customer … approach to incident response, monitoring, and continuous threat detection . Oversee audit readiness and maintain comprehensive network documentation and asset inventories. People & Stakeholder Leadership Build, develop, and mentor a high-performing network engineering team , fostering a culture of excellence, accountability, and continuous learning. Set clear objectives, manage performance, and align team skills with evolving business and technology needs. Act … technical depth and business acumen . Exceptional stakeholder management and communication skills, capable of influencing at C-suite level. Proven ability to lead teams , develop talent, and build a high-performance culture. Commercially aware, with experience managing budgets, vendors, and service contracts Qualifications Bachelor’s degree in Computer Science, Network Engineering, or related discipline (or equivalent experience). Professional More ❯

You will lead a team of skilled network engineers, define the enterprise networking roadmap, and collaborate with cross-functional teams — including Security, Infrastructure, and IT Operations — to deliver a high-performance, high-availability network platform that underpins mission-critical business and customer operations. Key Responsibilities Strategic Leadership Define and execute the strategic vision for enterprise and customer … approach to incident response, monitoring, and continuous threat detection . Oversee audit readiness and maintain comprehensive network documentation and asset inventories. People & Stakeholder Leadership Build, develop, and mentor a high-performing network engineering team , fostering a culture of excellence, accountability, and continuous learning. Set clear objectives, manage performance, and align team skills with evolving business and technology needs. Act … technical depth and business acumen . Exceptional stakeholder management and communication skills, capable of influencing at C-suite level. Proven ability to lead teams , develop talent, and build a high-performance culture. Commercially aware, with experience managing budgets, vendors, and service contracts Qualifications Bachelor’s degree in Computer Science, Network Engineering, or related discipline (or equivalent experience). Professional More ❯

You will lead a team of skilled network engineers, define the enterprise networking roadmap, and collaborate with cross-functional teams — including Security, Infrastructure, and IT Operations — to deliver a high-performance, high-availability network platform that underpins mission-critical business and customer operations. Key Responsibilities Strategic Leadership Define and execute the strategic vision for enterprise and customer … approach to incident response, monitoring, and continuous threat detection . Oversee audit readiness and maintain comprehensive network documentation and asset inventories. People & Stakeholder Leadership Build, develop, and mentor a high-performing network engineering team , fostering a culture of excellence, accountability, and continuous learning. Set clear objectives, manage performance, and align team skills with evolving business and technology needs. Act … technical depth and business acumen . Exceptional stakeholder management and communication skills, capable of influencing at C-suite level. Proven ability to lead teams , develop talent, and build a high-performance culture. Commercially aware, with experience managing budgets, vendors, and service contracts Qualifications Bachelor’s degree in Computer Science, Network Engineering, or related discipline (or equivalent experience). Professional More ❯

You will lead a team of skilled network engineers, define the enterprise networking roadmap, and collaborate with cross-functional teams — including Security, Infrastructure, and IT Operations — to deliver a high-performance, high-availability network platform that underpins mission-critical business and customer operations. Key Responsibilities Strategic Leadership Define and execute the strategic vision for enterprise and customer … approach to incident response, monitoring, and continuous threat detection . Oversee audit readiness and maintain comprehensive network documentation and asset inventories. People & Stakeholder Leadership Build, develop, and mentor a high-performing network engineering team , fostering a culture of excellence, accountability, and continuous learning. Set clear objectives, manage performance, and align team skills with evolving business and technology needs. Act … technical depth and business acumen . Exceptional stakeholder management and communication skills, capable of influencing at C-suite level. Proven ability to lead teams , develop talent, and build a high-performance culture. Commercially aware, with experience managing budgets, vendors, and service contracts Qualifications Bachelor’s degree in Computer Science, Network Engineering, or related discipline (or equivalent experience). Professional More ❯

Senior Backend Engineer (Platform & Security) 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. We are building a new category of network-native B2C security, moving … and entitlements system that powers our freemium business model, targeting a 30% premium conversion rate. ? Architect and manage our core database solutions (e.g., PostgreSQL for user data, Redis for high-speed caching), ensuring high availability, scalability, and security for call logs and user-profiles. ? Develop core, non-feature-specific backend services such as user account management, settings … business KPIs. ? Required Qualifications Education & Experience ? Bachelor's degree in Computer Science or a related technical field. ? 5+ years of hands-on experience in backend engineering, building and maintaining high-availability, scalable services in a production environment. Technical & Platform Skills ? Deep proficiency and hands-on production experience in Go (Golang our stack). Go is the required language More ❯

Senior Backend Engineer (Platform & Security) 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. We are building a new category of network-native B2C security, moving … and entitlements system that powers our freemium business model, targeting a 30% premium conversion rate. Architect and manage our core database solutions (eg, PostgreSQL for user data, Redis for high-speed caching), ensuring high availability, scalability, and security for call logs and user-profiles. Develop core, non-feature-specific Back End services such as user account management … KPIs. Required Qualifications Education & Experience Bachelor's degree in Computer Science or a related technical field. 5+ years of hands-on experience in Back End engineering, building and maintaining high-availability, scalable services in a production environment. Technical & Platform Skills Deep proficiency and hands-on production experience in Go (Golang our stack). Go is the required language More ❯

systems. Lead VMware infrastructure operations including provisioning, performance tuning, snapshot management, and lifecycle maintenance across ESXi hosts and vCenter environments. Ensure effective VMware resource allocation and cluster health, supporting high availability and fault tolerance. Drive data center organisation and restructuring initiatives, including rack layout optimisation, cable management, hardware lifecycle planning, and environmental monitoring. Participate in capacity planning and … performance tuning to support business growth and infrastructure scalability. Reliability & Monitoring Ensure high availability, security, and observability of systems through best practices in reliability and recoverability. Develop and maintain monitoring systems to ensure compliance with service level objectives. Lead and contribute to incident response, root cause analysis, and resolution of infrastructure issues. Project Delivery & Innovation Collaborate on infrastructure More ❯

a complex and evolving infrastructure environment. The post holder will be responsible for ensuring the stability, performance, and security of critical Linux-based systems, while supporting automation, monitoring, and high-availability environments. Salary: £43,482-£44,746 Contract type: Permanent Working hours: Full time Hybrid 60% Location: Central London (Hybrid working) Job responsibilities include: Maintain high availability 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 ❯

to reach their goals in and outside the office. Goldman Sachs has launched an initiative to become the top provider in equities trading by building superior technology and delivering high quality products. This vision is a multi-year investment in people, platforms and products. Join the team and participate in the development and launch of best in class products … within global equities markets, meeting requirements with impactful and rapid software deployment. As stewards of critical components in order execution and post-trade, the team is accountable for a high degree of software quality. The team consists of self-guided pragmatic individuals who are motivated to change the status quo in calculated ways. As a member of the team … in the full product lifecycle from requirements gathering, design,implementation, testing, support, and monitoring performance of systems and strategies used by our clients. Responsibilities Design, build and maintain a high-performance, high-availability, high-capacity, yet nimble and adaptive platform for transaction cost analytics and execution research Develop highly reliable data ingestion processes to consume large More ❯

leader, we are the driven professionals and technology experts that companies trust most to solve their IT challenges. As a Senior Software Engineer Manager, you’ll take on a high-profile, high-impact role for internal stakeholders and customers. Your experience in building and managing high-performance teams will help accelerate our growing business further. You will … large-scale digital transformation initiatives Hybrid Work Pattern - 2 days in office, based in Central London What you will do Lead and mentor a team of Software engineers, ensuring high-quality software development and delivery. Mentoring and coaching a team of 15+ coworkers on the execution of optimal solution roadmaps while maintaining consistently high levels of customer satisfaction. … platforms. Lead end-to-end digital transformation initiatives, modernizing legacy systems and migrating critical business applications to cloud platforms. Ensure seamless data migration, system integrations, and performance tuning for high availability environments. Ensure we build solutions that leverage our cross-practice expertise and drive client value and CDW differentiation What we expect of you Minimum basic requirements 10+ More ❯

leader, we are the driven professionals and technology experts that companies trust most to solve their IT challenges. As a Senior Software Engineer Manager, you’ll take on a high-profile, high-impact role for internal stakeholders and customers. Your experience in building and managing high-performance teams will help accelerate our growing business further. You will … large-scale digital transformation initiatives Hybrid Work Pattern - 2 days in office, based in Central London What you will do Lead and mentor a team of Software engineers, ensuring high-quality software development and delivery. Mentoring and coaching a team of 15+ coworkers on the execution of optimal solution roadmaps while maintaining consistently high levels of customer satisfaction. … platforms. Lead end-to-end digital transformation initiatives, modernizing legacy systems and migrating critical business applications to cloud platforms. Ensure seamless data migration, system integrations, and performance tuning for high availability environments. Ensure we build solutions that leverage our cross-practice expertise and drive client value and CDW differentiation What we expect of you Minimum basic requirements 10+ More ❯

media systems . Working within a cross- functional engineering team, this role focuses on developing scalable , reliable , and customizable monitoring tools , such as Dataminer and other platforms , to ensure high service availability and operational efficiency . What you'll do: Design and develop advanced monitoring solutions using platforms like Dataminer , Grafana , and custom integrations across broadcast and media … infrastructures . Implement and maintain real- time monitoring and observability across broadcast and media systems , ensuring high availability and performance. Collaborate with cross- functional teams to define monitoring requirements and translate them into scalable , reusable and innovative technical solutions . Integrate monitoring tools with CI/CD pipelines , infrastructure as code , and automation frameworks . Develop and maintain … cross-team collaboration and mentorship , and the strategic vision necessary to develop future -proof solutions . Team overview : CONTENT TECHNOLOGY AND INNOVATION Our Content Technology and Innovation team delivers high- quality content to homes, customer devices, businesses and commercial partners across our European markets . With over 2500 colleagues from around the world , we combine our strategic insights , engineering More ❯

media systems . Working within a cross- functional engineering team, this role focuses on developing scalable , reliable , and customizable monitoring tools , such as Dataminer and other platforms , to ensure high service availability and operational efficiency . What you'll do: Design and develop advanced monitoring solutions using platforms like Dataminer , Grafana , and custom integrations across broadcast and media … infrastructures . Implement and maintain real- time monitoring and observability across broadcast and media systems , ensuring high availability and performance. Collaborate with cross- functional teams to define monitoring requirements and translate them into scalable , reusable and innovative technical solutions . Integrate monitoring tools with CI/CD pipelines , infrastructure as code , and automation frameworks . Develop and maintain … cross-team collaboration and mentorship , and the strategic vision necessary to develop future -proof solutions . Team overview : CONTENT TECHNOLOGY AND INNOVATION Our Content Technology and Innovation team delivers high- quality content to homes, customer devices, businesses and commercial partners across our European markets . With over 2500 colleagues from around the world , we combine our strategic insights , engineering More ❯

and Subscriptions to Azure Landing Zone management group and subscriptions. Deliver Server using CIS hardened image for 2019/2022, App Services, SQL Managed Instance, SQL Database Server. Ensure high availability of services. Deliver secure way of network routing using Application Gateway, Azure Firewall, Network Security Group. Design and Configuration of point-to-site and site-to-site … for high secure VPN connectivity from end user’s device and Sizewell C various offices and sites. Configuration of Data Lake storage, ensuring security hardening. Compliance of backup and restoration. Integration of IAAS, PAAS and SAAS application with Microsoft Entra ID (AAD) for secure access through SAML SSO. Maintain the lifecycle of Enterprise Application and App registration certificate. Closely … understanding of competitive technologies to properly assess feasibility to integrate with customer solutions and understanding of Agile life-cycle Should be Core On premises, Azure Solution Architect and have high experience in solution designing. Should have excellent communication skills, the role is to work along with customer, understand their business/technical requirement and design Domain Merger, Identity management More ❯

and Subscriptions to Azure Landing Zone management group and subscriptions. Deliver Server using CIS hardened image for 2019/2022, App Services, SQL Managed Instance, SQL Database Server. Ensure high availability of services. Deliver secure way of network routing using Application Gateway, Azure Firewall, Network Security Group. Design and Configuration of point-to-site and site-to-site … for high secure VPN connectivity from end user’s device and Sizewell C various offices and sites. Configuration of Data Lake storage, ensuring security hardening. Compliance of backup and restoration. Integration of IAAS, PAAS and SAAS application with Microsoft Entra ID (AAD) for secure access through SAML SSO. Maintain the lifecycle of Enterprise Application and App registration certificate. Closely … understanding of competitive technologies to properly assess feasibility to integrate with customer solutions and understanding of Agile life-cycle Should be Core On premises, Azure Solution Architect and have high experience in solution designing. Should have excellent communication skills, the role is to work along with customer, understand their business/technical requirement and design Domain Merger, Identity management More ❯

and Subscriptions to Azure Landing Zone management group and subscriptions. Deliver Server using CIS hardened image for 2019/2022, App Services, SQL Managed Instance, SQL Database Server. Ensure high availability of services. Deliver secure way of network routing using Application Gateway, Azure Firewall, Network Security Group. Design and Configuration of point-to-site and site-to-site … for high secure VPN connectivity from end user’s device and Sizewell C various offices and sites. Configuration of Data Lake storage, ensuring security hardening. Compliance of backup and restoration. Integration of IAAS, PAAS and SAAS application with Microsoft Entra ID (AAD) for secure access through SAML SSO. Maintain the lifecycle of Enterprise Application and App registration certificate. Closely … understanding of competitive technologies to properly assess feasibility to integrate with customer solutions and understanding of Agile life-cycle Should be Core On premises, Azure Solution Architect and have high experience in solution designing. Should have excellent communication skills, the role is to work along with customer, understand their business/technical requirement and design Domain Merger, Identity management More ❯

and Subscriptions to Azure Landing Zone management group and subscriptions. Deliver Server using CIS hardened image for 2019/2022, App Services, SQL Managed Instance, SQL Database Server. Ensure high availability of services. Deliver secure way of network routing using Application Gateway, Azure Firewall, Network Security Group. Design and Configuration of point-to-site and site-to-site … for high secure VPN connectivity from end user’s device and Sizewell C various offices and sites. Configuration of Data Lake storage, ensuring security hardening. Compliance of backup and restoration. Integration of IAAS, PAAS and SAAS application with Microsoft Entra ID (AAD) for secure access through SAML SSO. Maintain the lifecycle of Enterprise Application and App registration certificate. Closely … understanding of competitive technologies to properly assess feasibility to integrate with customer solutions and understanding of Agile life-cycle Should be Core On premises, Azure Solution Architect and have high experience in solution designing. Should have excellent communication skills, the role is to work along with customer, understand their business/technical requirement and design Domain Merger, Identity management More ❯

disaster recovery, and cloud security, combined with the ability to operate within a fast-paced, scaling SaaS environment. Key Responsibilities Design, implement, and manage Azure-based infrastructure to ensure high availability, scalability, and security. Develop and maintain infrastructure-as-code and automation frameworks to streamline deployment and operations. Lead and test disaster recovery and business continuity plans to …/7 operations. Excellent problem-solving and incident management skills. Ability to thrive in a scaling SaaS environment, balancing stability and innovation. Desirable Previous experience in SaaS or high-growth technology companies. Knowledge of containerisation (e.g., Kubernetes, Docker). Scripting/programming skills (e.g., PowerShell, Python, Bash). Seniority Level Mid-Senior level Industry Software Development IT Services and More ❯

a skilled and proactive Solace 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 observability using tools like Prometheus … of cloud environments (AWS, Azure, GCP) and 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 programming skills while More ❯

a skilled and proactive Solace 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 observability using tools like Prometheus … of cloud environments (AWS, Azure, GCP) and 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 programming skills while More ❯

a skilled and proactive Solace 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 observability using tools like Prometheus … of cloud environments (AWS, Azure, GCP) and 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 programming skills while More ❯