1 to 25 of 124 High Availability Jobs in the City of 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 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 (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 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 (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 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 ❯

transmission systems, ensuring the highest standards of broadcast excellence. This is a key position where you will guarantee seamless content delivery for a prestigious client base by ensuring the high availability, scalability, and robust security of all systems. What's In It For You? Lead Critical Projects: You will take the lead on technical systems projects from concept … with cutting-edge broadcast technology and ensuring projects are delivered on schedule and within budget. Drive Technical Innovation: This role offers the chance to design, develop, and implement complex, high-availability distributed systems, giving you a platform to solve advanced challenges and shape the infrastructure of a growing company. High-Impact Environment: As a key member of … a start-up, you will have the opportunity to mentor and collaborate with technology teams, directly influencing the engineering culture and resolving high-level technical issues in a dynamic environment. Responsibilities: Take full ownership of the core infrastructure, administering and maintaining primarily Linux-based environments through configuration, deployment, upgrades, and patching. Drive the end-to-end delivery of technical More ❯

transmission systems, ensuring the highest standards of broadcast excellence. This is a key position where you will guarantee seamless content delivery for a prestigious client base by ensuring the high availability, scalability, and robust security of all systems. What's In It For You? Lead Critical Projects: You will take the lead on technical systems projects from concept … with cutting-edge broadcast technology and ensuring projects are delivered on schedule and within budget. Drive Technical Innovation: This role offers the chance to design, develop, and implement complex, high-availability distributed systems, giving you a platform to solve advanced challenges and shape the infrastructure of a growing company. High-Impact Environment: As a key member of … a start-up, you will have the opportunity to mentor and collaborate with technology teams, directly influencing the engineering culture and resolving high-level technical issues in a dynamic environment. Responsibilities: Take full ownership of the core infrastructure, administering and maintaining primarily Linux-based environments through configuration, deployment, upgrades, and patching. Drive the end-to-end delivery of technical 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 ❯

London or Remote What’s on offer 💷 £70,000 – £85,000 + bonus & equity options 🏥 Comprehensive benefits package (healthcare, pension, life assurance) 🧑 💻 Hybrid working (London-based or remote) A high-growth fintech is seeking a DevOps Engineer to help build and operate the infrastructure powering the next generation of post-trade systems across Europe. This is a fantastic opportunity … work on secure, scalable, and low-latency platforms that underpin real-time financial operations. You’ll play a key role in designing cloud-native infrastructure , automating deployments, and ensuring high availability in a performance-critical environment. What you’ll do Design, implement, and maintain AWS-based distributed infrastructure supporting real-time services. Automate workflows and deployments using Terraform … Familiarity with monitoring, logging, and tracing tools. ✅ Security-conscious mindset and automation-first approach . Nice to have Experience in fintech, trading, or distributed ledger systems . Exposure to high-availability and latency-sensitive architectures . Familiarity with ISO 27001 or FCA-regulated environments . More ❯

London or Remote What’s on offer 💷 £70,000 – £85,000 + bonus & equity options 🏥 Comprehensive benefits package (healthcare, pension, life assurance) 🧑 💻 Hybrid working (London-based or remote) A high-growth fintech is seeking a DevOps Engineer to help build and operate the infrastructure powering the next generation of post-trade systems across Europe. This is a fantastic opportunity … work on secure, scalable, and low-latency platforms that underpin real-time financial operations. You’ll play a key role in designing cloud-native infrastructure , automating deployments, and ensuring high availability in a performance-critical environment. What you’ll do Design, implement, and maintain AWS-based distributed infrastructure supporting real-time services. Automate workflows and deployments using Terraform … Familiarity with monitoring, logging, and tracing tools. ✅ Security-conscious mindset and automation-first approach . Nice to have Experience in fintech, trading, or distributed ledger systems . Exposure to high-availability and latency-sensitive architectures . Familiarity with ISO 27001 or FCA-regulated environments . 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 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 ❯

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 ❯

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 ❯

alongside a globally distributed team. As a Senior Software Engineer, you will work with our Architects and Product Team to bring designs to life. More specifically, you will demonstrate high-quality software development expertise, responsible for developing a secure, high-performance code. You will be confident with the software development life cycle (SDLC) from preliminary system design through … ambition, accountability, and impact – to live and breathe it. Objectives (6-12 months) Software Design and Development Take new feature documentation and tickets from the Product Team and develop high quality code, often leading the implementation of the feature ready for testing. Work with the wider team to assist with sizing new features. Participate and provide support to the … wider software development team and client base. - Be responsible for developing new features and bug fixes. Develop high-volume, high-performance, high-availability applications using proven frameworks and technologies. Aid consistent use of shared platform components and technologies within Privalgo. Contribute to best practice for application development. Troubleshooting & Debugging Assist in writing unit and integration tests More ❯

alongside a globally distributed team. As a Senior Software Engineer, you will work with our Architects and Product Team to bring designs to life. More specifically, you will demonstrate high-quality software development expertise, responsible for developing a secure, high-performance code. You will be confident with the software development life cycle (SDLC) from preliminary system design through … ambition, accountability, and impact – to live and breathe it. Objectives (6-12 months) Software Design and Development Take new feature documentation and tickets from the Product Team and develop high quality code, often leading the implementation of the feature ready for testing. Work with the wider team to assist with sizing new features. Participate and provide support to the … wider software development team and client base. - Be responsible for developing new features and bug fixes. Develop high-volume, high-performance, high-availability applications using proven frameworks and technologies. Aid consistent use of shared platform components and technologies within Privalgo. Contribute to best practice for application development. Troubleshooting & Debugging Assist in writing unit and integration tests More ❯

Code (IaC) tooling Collaborate closely with software, cloud, and security teams to deliver integrated solutions Support and enhance containerisation, orchestration, and automation platforms Monitor and troubleshoot environments to ensure high availability and performance Contribute to continuous improvement of DevOps standards and processes Essential Skills & Experience Hands-on experience with CI/CD tools such as Jenkins, GitLab CI … considered for this position. Why You’ll Enjoy Working Here Competitive salary with clear progression opportunities Hybrid working and flexible arrangements for work-life balance Chance to work on high-impact national security projects in a start-up culture Exposure to modern tooling, DevSecOps practices, and cloud innovation Supportive, collaborative engineering environment with autonomy and creativity encouraged More ❯

Code (IaC) tooling Collaborate closely with software, cloud, and security teams to deliver integrated solutions Support and enhance containerisation, orchestration, and automation platforms Monitor and troubleshoot environments to ensure high availability and performance Contribute to continuous improvement of DevOps standards and processes Essential Skills & Experience Hands-on experience with CI/CD tools such as Jenkins, GitLab CI … considered for this position. Why You’ll Enjoy Working Here Competitive salary with clear progression opportunities Hybrid working and flexible arrangements for work-life balance Chance to work on high-impact national security projects in a start-up culture Exposure to modern tooling, DevSecOps practices, and cloud innovation Supportive, collaborative engineering environment with autonomy and creativity encouraged More ❯

issues in production environments. Collaborate closely with the DevOps Technical Lead (based in Copenhagen) and cross-functional teams (developers, QA, operations and ITOps). Implement disaster recovery, backup, and high-availability strategies. Advocate for modern DevOps practices and contribute to continuous improvement initiatives. Qualifications & Experience 5+ years of hands-on DevOps, infrastructure, or systems engineering experience. Strong expertise More ❯

issues in production environments. Collaborate closely with the DevOps Technical Lead (based in Copenhagen) and cross-functional teams (developers, QA, operations and ITOps). Implement disaster recovery, backup, and high-availability strategies. Advocate for modern DevOps practices and contribute to continuous improvement initiatives. Qualifications & Experience 5+ years of hands-on DevOps, infrastructure, or systems engineering experience. Strong expertise More ❯

deployments, and maintaining the resilience and security of our infrastructure. You will work closely with cross-functional teams, implementing cutting-edge solutions to optimise software development lifecycles and ensure high availability, performance, and compliance of our platforms. This role demands a high level of technical expertise in cloud infrastructure, automation, and containerisation, as well as an ability … automated Continuous Integration/Continuous Deployment (CI/CD) pipelines using industry-standard tools (Jenkins, GitLab, Argo). Ensure pipelines follow best practices to expedite software releases, while maintaining high-quality standards and minimizing risks. Container Orchestration: Manage, maintain, and scale Kubernetes and Docker clusters across various jurisdictions with different regulatory requirements, ensuring that platforms remain secure, compliant, and … global cloud infrastructure (primarily AWS) to ensure seamless integration, scaling, and resilience. Maintain services like AWS EC2, ECS, EKS, VPC, and Transit Gateways. UAT Environment Management: Build and maintain high-quality User Acceptance Testing (UAT) environments to ensure that pre-production testing mirrors production environments, allowing rigorous and reliable software validation before live releases. Monitoring & Maintenance: Perform daily monitoring More ❯

deployments, and maintaining the resilience and security of our infrastructure. You will work closely with cross-functional teams, implementing cutting-edge solutions to optimise software development lifecycles and ensure high availability, performance, and compliance of our platforms. This role demands a high level of technical expertise in cloud infrastructure, automation, and containerisation, as well as an ability … automated Continuous Integration/Continuous Deployment (CI/CD) pipelines using industry-standard tools (Jenkins, GitLab, Argo). Ensure pipelines follow best practices to expedite software releases, while maintaining high-quality standards and minimizing risks. Container Orchestration: Manage, maintain, and scale Kubernetes and Docker clusters across various jurisdictions with different regulatory requirements, ensuring that platforms remain secure, compliant, and … global cloud infrastructure (primarily AWS) to ensure seamless integration, scaling, and resilience. Maintain services like AWS EC2, ECS, EKS, VPC, and Transit Gateways. UAT Environment Management: Build and maintain high-quality User Acceptance Testing (UAT) environments to ensure that pre-production testing mirrors production environments, allowing rigorous and reliable software validation before live releases. Monitoring & Maintenance: Perform daily monitoring More ❯

through proactive monitoring and troubleshooting. Manage infrastructure budgets and resource optimization strategies. Stay ahead of emerging DevOps tools and methodologies, integrating them into project workflows as relevant. Foster a high-performing, continuously learning team culture through mentoring and professional development. Manage the team’s delivery scope, resource allocation, timelines, and agile development practices. Your Skills & Experience Strong background in … in observability stacks—logging (e.g., ELK), monitoring (e.g., Prometheus), and tracing (e.g., Jaeger, OpenTelemetry). Cloud certifications (AWS, GCP, or similar) are advantageous. Excellent problem-solving skills, especially in high-availability environments (broadcasting or streaming experience is a plus). Enthusiastic, proactive team player with a passion for innovation. About the Team You'll be part of a … high-impact DevOps unit within a leading media organization, collaborating with technical experts and creatives across multiple disciplines—from architecture and playout to distribution and post-production. Our team is lean, focused, and structured to deliver end-to-end solutions—efficiently moving from concept to deployment with a clear emphasis on quality and impact. Technology & Innovation Culture Our broader More ❯

through proactive monitoring and troubleshooting. Manage infrastructure budgets and resource optimization strategies. Stay ahead of emerging DevOps tools and methodologies, integrating them into project workflows as relevant. Foster a high-performing, continuously learning team culture through mentoring and professional development. Manage the team’s delivery scope, resource allocation, timelines, and agile development practices. Your Skills & Experience Strong background in … in observability stacks—logging (e.g., ELK), monitoring (e.g., Prometheus), and tracing (e.g., Jaeger, OpenTelemetry). Cloud certifications (AWS, GCP, or similar) are advantageous. Excellent problem-solving skills, especially in high-availability environments (broadcasting or streaming experience is a plus). Enthusiastic, proactive team player with a passion for innovation. About the Team You'll be part of a … high-impact DevOps unit within a leading media organization, collaborating with technical experts and creatives across multiple disciplines—from architecture and playout to distribution and post-production. Our team is lean, focused, and structured to deliver end-to-end solutions—efficiently moving from concept to deployment with a clear emphasis on quality and impact. Technology & Innovation Culture Our broader More ❯

in modern PHP 8+ (ideally Laravel/Symfony) and JavaScript/TypeScript (React.JS) being essential to drive their frontend and backend systems. You will be designing and delivering scalable, high-performance solutions from product requirements, ensuring robust observability through metrics and monitoring. You’ll work on event-driven architectures using CQRS, apply SOLID principles, and leverage Docker to build … high-availability, high-throughput platforms. Experience with AWS services is a strong advantage, as you will be given the opportunity to contribute to their cloud based infrastructure. The role also entails mentoring more junior devs with significant chance to progress within the company as the business continues to grow. The role is 4 days a week on More ❯

in modern PHP 8+ (ideally Laravel/Symfony) and JavaScript/TypeScript (React.JS) being essential to drive their frontend and backend systems. You will be designing and delivering scalable, high-performance solutions from product requirements, ensuring robust observability through metrics and monitoring. You’ll work on event-driven architectures using CQRS, apply SOLID principles, and leverage Docker to build … high-availability, high-throughput platforms. Experience with AWS services is a strong advantage, as you will be given the opportunity to contribute to their cloud based infrastructure. The role also entails mentoring more junior devs with significant chance to progress within the company as the business continues to grow. The role is 4 days a week on More ❯