1 to 25 of 68 Permanent High Availability Jobs in the South East

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 ❯

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 ❯

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 ❯

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 ❯

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 ❯

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 ❯

infrastructure upgrade projects and assist in developing new solutions. Manage and monitor servers, storage systems (SAN/NAS), and network equipment including switches, firewalls, and wireless access points. Ensure high system performance, availability, and data integrity through proactive monitoring, backups, and disaster recovery testing. Support and enhance business continuity plans. Maintain accurate and comprehensive technical documentation; contribute to … Proficiency in networking protocols such as TCP/IP, DNS, DHCP, and VLANs. Hands-on experience with virtualization platforms like VMware vSphere and Microsoft Hyper-V (VM provisioning, optimization, high availability, troubleshooting). Skilled in configuring and managing routers, switches, and firewalls. Experience with SAN and NAS technologies including provisioning, tuning, and backup strategies. Familiarity with LogicMonitor or More ❯

infrastructure upgrade projects and assist in developing new solutions. Manage and monitor servers, storage systems (SAN/NAS), and network equipment including switches, firewalls, and wireless access points. Ensure high system performance, availability, and data integrity through proactive monitoring, backups, and disaster recovery testing. Support and enhance business continuity plans. Maintain accurate and comprehensive technical documentation; contribute to … Proficiency in networking protocols such as TCP/IP, DNS, DHCP, and VLANs. Hands-on experience with virtualization platforms like VMware vSphere and Microsoft Hyper-V (VM provisioning, optimization, high availability, troubleshooting). Skilled in configuring and managing routers, switches, and firewalls. Experience with SAN and NAS technologies including provisioning, tuning, and backup strategies. Familiarity with LogicMonitor or More ❯

to our customer sites. How we work A team of self-motivated individuals with the ability to work unsupervised supporting a mission critical service. Working to towards a 99.999% availability, our collaborative team follows a DevOps approach to provide a service with constantly evolving priorities and growing customer base. As a team, we are working on the goal of … Directory (ADFS, domain management, users/groups, policies, certificates etc.) Infrastructure management and maintenance (COTS hardware & Virtualisation - VMware, Hyper-V) Good knowledge and experience of ITIL Experience of managing high availability environments and systems or with similar critical infrastructure delivery experience. Highly attentive with the ability to deal with changing priorities and context switching. A positive attitude to More ❯

regulations (e.g., FCA, GDPR). Collaborate with stakeholders to understand business requirements and translate them into technical solutions. Lead cloud migration projects and modernisation initiatives across financial platforms. Ensure high availability, disaster recovery, and data security in all cloud architectures. Provide technical leadership and mentoring to development and infrastructure teams. Develop infrastructure as code (IaC) using tools like More ❯

address global challenges and advance biology engineering. EIT fosters a culture of collaboration, innovation, and resilience, valuing diverse expertise to drive sustainable solutions to humanity's enduring challenges. The High-Performance Computing (HPC) Engineer within GBI will play a pivotal role in designing, building, and maintaining advanced computational infrastructure to accelerate biological and biomedical discovery and translational research. Working … the regular level: This position requires technical expertise in HPC system architecture, coupled with the ability to collaborate closely with data scientists, bioinformaticians, and software engineers to ensure seamless, high-performance access to computing resources that support GBI's research mission. At the senior level: This position requires deep technical expertise in HPC system architecture, coupled a proven track … record to collaborate closely with data scientists, bioinformaticians, and software engineers to ensure seamless, high-performance access to computing resources that support GBI's research mission. Key Responsibilities: Design, implement, and maintain scalable HPC infrastructure (cloud and on-prem) to support GBI's computational research workloads. Evaluate and integrate advanced technologies including GPU/TPU acceleration, high-speed More ❯

rebuilt our infrastructure almost from scratch, and we are now expanding the infrastructure team. As a part of the team, you will work to minimize the number of incidents (availability, performance, security), speed up time-to-delivery of new features to customers, building flexible, protected, high availability infrastructure to ensure every customer's journey or request runs More ❯

Food Security, and AI & Robotics. The Role: Cloud Engineer Oracle Fusion & Cloud Infrastructure This is a critical technical role focused on the design, implementation, and maintenance of our secure, high-availability cloud environments, directly supporting the operation and integration of our Oracle Fusion Cloud (ERP/HCM/SCM) applications. You will be instrumental in managing the Oracle More ❯

Electrical Day Maintenance Engineer - High Wycombe - to £50k plus benefits My client is seeking an Electrical Maintenance Engineer to join them on a Data Center site in High Wycombe. You must have critical environments experience and be electrically qualified. This role is Monday to Friday 8-5 and will be on call one week in three. The Data … vendors for upgrades and incident resolution. Candidate Requirements: Proven experience in data center or mission-critical environments. Strong technical knowledge of electrical and mechanical systems. Ability to work in high-pressure, high-availability settings. Relevant certifications C&G electrical installation parts 1 and 2 preferred. The successful candidate will be able to apply a risk-focused maintenance More ❯

London We are partnering with a leading global professional services firm to recruit a Senior Network Engineer for their London office. This is an exciting opportunity to join a high-performing technology team and play a key role in managing and optimizing enterprise network infrastructure. About the Role As a Senior Network Engineer, you will be responsible for the … design, implementation, and support of complex LAN, WAN, WLAN, and data center networks. You'll work closely with the Network Engineering team to ensure high availability, security, and performance across the firm's global network environment. Key Responsibilities Provide day-to-day technical support for network infrastructure across data centers and office locations. Monitor network performance, troubleshoot issues … and collaboration. You'll work on cutting-edge projects and have the chance to shape the future of network infrastructure in a dynamic, fast-paced environment. Due to the high volume of applications, we are not able to respond to all enquiries. If you have not received a response within 72 hours, please assume you have not been shortlisted More ❯

and two days based at their two sites in Surrey. Reporting directly to the Technical Director you will support and enhance Azure, Windows, Linux, and networking environments to ensure high availability of key services to their end users. Key responsibilities: Responsible for management of Microsoft 365 and Azure cloud services, support Windows-based web and business applications, manage … Remote Desktop Services (RDS) and RemoteApp, oversee DNS, SSL/TLS certificate management, handle all backups, updates, patching, and security maintenance, ensure system performance, availability, and disaster recovery, contribute to ISO 27001 and GDPR processes, provide technical support to internal team members and maintenance of all documentation for systems and processes Skills required Previous hands-on experience in infrastructure More ❯

and two days based at their two sites in Surrey. Reporting directly to the Technical Director you will support and enhance Azure, Windows, Linux, and networking environments to ensure high availability of key services to their end users. Key responsibilities: Responsible for management of Microsoft 365 and Azure cloud services, support Windows-based web and business applications, manage … Remote Desktop Services (RDS) and RemoteApp, oversee DNS, SSL/TLS certificate management, handle all backups, updates, patching, and security maintenance, ensure system performance, availability, and disaster recovery, contribute to ISO 27001 and GDPR processes, provide technical support to internal team members and maintenance of all documentation for systems and processes Skills required Previous hands-on experience in infrastructure More ❯

Senior Software Engineer (C#, Azure, Event-Driven Systems) £75,000-£8,000 + Bonus + Shares | St Albans (Hybrid) A long-established, high-growth technology business is beginning a major architectural rebuild following several acquisitions. They are unifying multiple systems into a single source of truth and preparing to scale their platform significantly over the next five years. They … contributing to the engineering standards that will define the new platform. Key Responsibilities * Build scalable, resilient, event-driven services using C# and Azure. * Work on distributed systems that support high-throughput, high-availability environments. * Deliver features end-to-end with a focus on performance, reliability, and maintainability. * Collaborate with Engineering Leads, Architects, and Product to refine designs More ❯

With ambitious growth plans and investment backing, this is a chance to join a forward-thinking engineering team where you’ll make a real impact. to design and implement high-availability, mission-critical backend systems. You’ll join a collaborative engineering team delivering scalable solutions for global telecom operations. What you’ll do Design & build: Develop and maintain … Pub/Sub). Excellent communication and analytical skills. Nice to have: Telecom-specific protocols (SMPP, SIP), OSS/BSS integrations, or network APIs. Event-driven systems, CQRS, or high-redundancy architectures. Security scanning, testing, Git, and Agile/Scrum experience. Interest in Kotlin. Bachelor’s degree in computer science, Engineering, or related field. You’ll be excited about More ❯

we're building a world-class platform to amplify our teams' most powerful ideas. As part of our engineering team, you'll shape the platforms and tools that drive high-impact research - designing systems that scale, accelerate discovery and support innovation across the firm. The role We're looking for an Elastic Platform Engineer to manage and evolve the … as Tines and SOAR platforms Familiarity with Bash, Python or equivalent languages Strong knowledge of Linux systems, networking and cloud logging architectures Proven ability to manage upgrades, migrations and high-availability deployments Experience in securing hybrid cloud environments, including Azure, AWS or GCP Strong scripting skills in Bash and Python (or equivalent), with experience in automation and operational More ❯

infrastructure operations, driving efficiency and improving resilience • Solid understanding of Azure Firewall, Front Door, Application Gateway, API Management, and associated services • Skilled in architecting and implementing Disaster Recovery and high availability solutions within Azure • Proficiency with monitoring and observability tools (e.g., Azure Monitor, Log Analytics, Application Insights) • Strong troubleshooting and problem-solving skills with a focus on minimising … downtime and disruption • Ability to create and maintain high-quality technical documentation and share knowledge with colleagues • Excellent communication and collaboration skills with both technical and business stakeholders • Relevant Microsoft certifications (e.g., Azure Solutions Architect Expert, Azure Network Engineer Associate) Benefits You'll get a highly competitive remuneration and benefits package. This is kept under constant review to make More ❯

with infrastructure upgrade projects and contribute to new solution designs. Manage and monitor servers, storage systems (SAN/NAS), and network devices (switches, firewalls, WAPs). Ensure system performance, availability, and data integrity through proactive monitoring and backups. Support and test Disaster Recovery plans and contribute to business continuity strategies. Maintain accurate technical documentation and contribute to knowledge sharing. … protocols, TCP/IP, DNS, DHCP, and VLANs, along with Proficient in managing and maintaining virtualized environments using VMware vSphere and Microsoft Hyper-V, including VM provisioning, resource optimization, high availability configurations, and troubleshooting performance issues. hands-on experience configuring and managing routers, switches, and firewalls. Experience with SAN (Storage Area Network) and NAS (Network Attached Storage) technologies … and managing LogicMonitor for infrastructure monitoring, including custom dashboard creation, alert tuning. Strong time management, multitasking, and attention to detail. Ability to perform under pressure, especially during incidents or high-demand periods. WHAT SONEPAR UK CAN OFFER YOU Competitive Salary+ 5% performance bonus. Generous Time Off: Start with 25 days of annual leave, increasing with length of service up More ❯