76 to 100 of 115 High Availability Jobs in the South East

days per week) | Competitive salary + bonus Ncounter is partnering with a leading trading technology group to hire an exceptional C++ Software Engineer to build and evolve high-performance order gateway systems used in fast-moving fixed income markets. This is a hands-on role developing ultra-low-latency services that handle order validation, routing and exchange connectivity - the … backbone of real-time trading. You’ll join a collaborative team of developers, quants and platform engineers, working across a high-availability C++ codebase to deliver fast, resilient and observable services. You’ll be empowered to design, implement and test software that directly impacts trading performance, scalability and reliability. Key Responsibilities: • Design and develop high-throughput order … driving improvements Core Skills & Experience: • Strong proficiency in modern C++ (C++17 or later) and STL • Deep understanding of multi-threading, low-latency optimisation and Linux systems • Experience working on high-frequency or real-time systems (financial or otherwise) • Familiarity with network programming, serialization and distributed architectures • Strong analytical and debugging skills, using profiling tools to measure performance • Exposure to More ❯

to hire a Senior Software Developer. In this senior role, you’ll take technical ownership of solutions end-to-end, mentor junior developers, and ensure delivery of highly scalable, high-availability platforms that drive cutting-edge online gaming experiences.You’ll also play a senior position in driving the move from a PHP-heavy stack to a modern TypeScript …/React front end, helping define and deliver greenfield solutions with a premium, customer-first focus. Role and Responsibilities Drive full-stack development projects, ensuring high-quality delivery across both frontend and backend. Act as a technical lead for React/TypeScript adoption, mentoring the team (currently PHP-heavy) and raising overall capability. Architect and implement scalable, performant solutions … that power high-traffic, real-time platforms. Take ownership of key greenfield projects, shaping the technical direction for premium UI/UX. Collaborate with cross-functional teams to align technical solutions with business goals. Support DevOps and CI/CD initiatives where possible. Essential Skills and Experience Proven experience with PHP (backend) and TypeScript/React (frontend). Track More ❯

and growth Proven experience with agile methodologies and enforcing delivery discipline Excellent communication and interpersonal skills Strong technical foundation with knowledge of modern tech stacks and experience with scalable, high availability systems Experience in performance management and driving high standards across teams Salary & Benefits: Up to £90,000 depending on experience 25 days holiday + Bank Holidays More ❯

an AI DevOps Engineer, you will be responsible for building and managing scalable, secure infrastructure for our multi-agent AI orchestration platform. This is an opportunity to join a high functioning relaxed team that will significantly contribute to the digital transformation We do have other artificial intelligence roles in the team including AI (artificial intelligence) test Engineer roles, so … in line with your expectations What are the key expectations of this role? This role involves working across multiple Azure regions (UK South, Sweden Central, East US) to ensure high availability, secure deployments, and efficient agent orchestration using AKS. You will create and maintain CI/CD pipelines for Azure services, Semantic Kernel agents, manage Kubernetes clusters, and More ❯

. Introduce AI-based solutions for data processing, transaction monitoring, KYC/AML processes, and client services. Operational Platforms Oversee all systems supporting client services and internal operations. Ensure high availability, resilience, and scalability. Develop and regularly test Disaster Recovery Plans (DRP) and business continuity frameworks. Cybersecurity and Compliance Implement and maintain standards such as ISO27001, SOC2, GDPR … Board of Directors. Team and Leadership Build and develop the global IT function (internal team + external partners). Promote a culture of innovation, cyber hygiene, and accountability. Ensure high employee engagement and performance. Key skills Experience: 10–15+ years in IT, at least 7 years in a senior leadership role. Mandatory experience in the financial industry (Wealth/ More ❯

HANA. (SLES 15 SP5 upgrade, CSUR & OS Patch 2024.10, and Serviceguard A.12.80.06 configuration). Key Responsibilities: Upgrade SUSE Linux (SLES 15 SP5) and apply patches Configure HPE Serviceguard for high availability Perform updates across compute nodes and partitions Work during business and out-of-hours windows Document all activities Required Skills: SUSE Linux (SLES) administration HPE Serviceguard clustering More ❯

BAU support, monitoring, and maintenance of live production systems Essential: Skilled in supporting infrastructure and applications built on Microsoft Server systems (e.g. Remote Desktop, Active Directory, DNS) Familiar with high-availability environments handling thousands of daily users and requiring zero downtime Proficient in maintaining and updating Windows-based systems, including regular Windows Updates and patching Strong knowledge of More ❯

major contracts and earning awards like “Best Performing Company” in HealthTech. What you’ll be working on: Designing and developing their flagship product Building real-time clinical applications with high availability and scalability Collaborating with cross-functional teams to deliver impactful solutions Tech stack includes : Java 21, Spring, JavaScript, Hibernate, RESTful APIs, AWS, Azure, Linux What’s on More ❯

Monday-Friday) Hybrid working (3 days office/2 days remote) You will focus on the operational support and continuous improvement of enterprise application environments, ensuring high availability, security, and performance. Key responsibilities include day-to-day maintenance, patching, monitoring, and user support across critical systems, while also contributing to process improvement, documentation, and integration stability. IT Applications More ❯

Cisco UCCE solutions including ICM, CVP, CUIC, CUCM, and Finesse. Manage integrations with third-party systems (WFM, CRM, CTI, SIP gateways, etc.). Monitor and troubleshoot voice infrastructure, ensuring high availability and performance. Perform regular upgrades, patching, and capacity planning. Support end-to-end call flows, routing scripts, and reporting solutions. Create and maintain technical documentation, diagrams, and More ❯

Cisco UCCE solutions including ICM, CVP, CUIC, CUCM, and Finesse. Manage integrations with third-party systems (WFM, CRM, CTI, SIP gateways, etc.). Monitor and troubleshoot voice infrastructure, ensuring high availability and performance. Perform regular upgrades, patching, and capacity planning. Support end-to-end call flows, routing scripts, and reporting solutions. Create and maintain technical documentation, diagrams, and More ❯

applications, networks, and cybersecurity to ensure the most suitable and affordable solutions are proposed and implemented Evaluate and implement new technologies to improve business processes and drive growth Ensure high availability, performance, and security of enterprise IT systems. Governance & Compliance: Establish IT policies, standards, and procedures in line with best practices and regulatory requirements. Lead efforts to ensure More ❯

Policy, DNS, DHCP, and other core Windows services. Perform server patching, upgrades, and maintenance in line with security and compliance standards. Monitor system performance and implement improvements to ensure high availability and reliability. Work with 1st and 2nd line support teams to escalate and resolve incidents within agreed SLA’s Maintain and update documentation for systems, processes, and More ❯

working with a major broadcasting client who require an experienced Project Manager to support the successful delivery of key initiatives across multiple workstreams. This role is critical to ensuring high-quality delivery within a fast-paced, high-profile environment. Key Responsibilities Plan, coordinate, and manage multiple projects, ensuring delivery to time, quality, and budget. Oversee risks, issues, and … ensure seamless project delivery. Skills & Experience Required Proven Project Management experience in complex technical environments . Strong, demonstrable SAP Project Management background . Experience delivering projects in large-scale, high-availability environments. Knowledge of Agile methodologies (Scrum, Agile PM). Excellent leadership, communication, and stakeholder management skills. Experience working in digital media, new media, or IPTV environments is More ❯

Global Financial Services/Institutional Asset Management Clearance: Right to work in the UK required A globally recognised financial institution is hiring a Core Networking Specialist to join its high-performance infrastructure team. This firm plays a critical role in global markets, offering integrated investment services to institutional clients and managing trillions in assets. Known for its pioneering work … global operations. This role covers enterprise networking across data centres, campuses, and cloud environments - balancing performance, scale, and resilience in demanding financial settings. Key Responsibilities Design and implement scalable, high-availability network solutions (LAN, WAN, Campus, Cloud). Translate requirements into robust, well-documented architectures. Lead network delivery projects; coordinate with vendors and internal teams. Provide L3 escalation … Arista/Cisco; strong troubleshooting tools (Wireshark, netcat, etc.). Familiar with network security, automation (Python, Ansible), and observability stacks (Prometheus, Grafana). Excellent communicator with experience delivering in high-stakes, collaborative settings. STEM degree and CCNP/CCIE preferred. Why Join? Join a trusted global institution where networking is core to performance. You’ll work on critical infrastructure More ❯

Perform regression testing across resident/device CRUD operations and QR code workflows Ensure feature parity and performance benchmarks during cloud migration Conduct load, failover, and resilience testing for high-availability systems Collaborate with developers and product owners to define acceptance criteria Maintain structured test documentation and defect reports What You’ll Bring: Proven experience testing Node.js/… microservices testing Excellent defect reporting and collaboration skills Why Apply? Work on a life-impacting platform with real-world safety implications Be part of a collaborative, agile team delivering high-quality cloud services Flexible hybrid setup with remote-first culture Contact Shumon Miah at or call to find out more. More ❯

strong technical foundation and exceptional customer service skills. The successful candidate will be responsible for providing first and second-line support across end-user devices, software, and infrastructure, ensuring high availability and seamless service delivery. Key Responsibilities Provide Level 1/2 support across networks, domains, hardware, and software environments. Deliver end-user support for Windows 10/… ITIL practices. Maintain accurate documentation and records of incidents, resolutions, and system changes. Provide clear, professional communication to end-users, ensuring exceptional customer experience. Manage workload independently while maintaining high productivity and efficiency. Skills & Experience Strong general understanding of IT principles (networks, hardware, domains). Working knowledge of leading software packages (Microsoft Office, Lotus Notes). Proficiency with Windows More ❯

translate product and business requirements into technical solutions. We'll also look to you to demonstrate a clear understanding of how your technical specialism supports our customers by producing high availability, low-cost solutions. You'll also demonstrate: Experience of Agile tools and methodologies Experience of working in an environment where products must be delivered to short delivery More ❯

across Windows and Linux systems. Key Responsibilities: Deploy, configure, and integrate CyberArk Secret Manager/AAM components (CP, CCP, ASCP).?? Design credential management solutions for service accounts, ensuring high availability and compliance.?? Integrate CyberArk with applications, middleware, and databases for secure credential retrieval and rotation.?? Automate deployments and configuration using Ansible , PowerShell , Bash , and REST APIs . More ❯

Oversee network IP addressing and VPN setups * Support business continuity through proactive incident management * Rapid deployment of site connectivity solutions, including 4G routers * Monitor network health and performance, ensuring high availability and resilience * Maintain inventory and configuration records for infrastructure and software * Collaborate with the Security Operations Center (SOC) on network security * Support software licensing and upgrades * Support More ❯

impact across their infrastructure. Duties & Responsibilities Manage and maintain both Linux and Windows-based server environments. Design, configure and support Cisco networking equipment including switches, routers, and firewalls. Ensure high availability, performance, and security across multiple datacentres. Troubleshoot and resolve complex network and systems issues efficiently. Implement and maintain compliance with industry standards and best practices. What Experience More ❯

quality and in a timely fashion. This will require the coordination of multiple vendors. Autonomously and collaboratively identify opportunities and threats from IT. Manage suppliers to ensure system performance, high availability and reliability of IT services. Raise service credits when appropriate. Entra and O365 administration as required by the centralised IT function. Collaborate with other IT teams to More ❯

Policy and compliance enforcement. Strong background in? identity and access management , including? OAuth and? federated credentials. Deep understanding of? Azure security best practices , including? Defense in Depth ,? BCDR , and? high availability. If you meet these requirments please send me a copy of your CV to More ❯

trusted partner to the U.K. MOD. As a 3rd Line Storage Support Engineer, youll play a vital role in maintaining and supporting enterprise-grade backup and storage solutions, ensuring high availability and resilience across secure infrastructure environments. This is a hands-on role involving daily operational support, event monitoring, and lifecycle management of critical storage platforms. Youll work … closely with internal teams and stakeholders, contributing to a high-profile government account. Whats on Offer: Salary Up to £50k DOE 5% company bonus 10% Security clearance bonus Benefits pack 10% employer pension, 26 days leave plus banks, private medical, life assurance & more Certification support paid exams and training materials for professional development On-call rota 1 week in … government or MOD environments is highly advantageous Please note: This role requires active DV clearance to start. Candidates must be sole British citizens and eligible to undertake and maintain high-level security clearance. O.K. Im in, whats next? Apply with your latest CV today to explore this exciting opportunity. More ❯

brands within the music industry, is seeking .NET Developer to work out of their plush offices in the heart of Leatherhead. You will be working on the development of high-availability and highly-transactional .NET/C# applications which will be critical to the launch of their new online music shopping channel. We are seeking .NET Developer candidates More ❯