1 to 25 of 43 Permanent High Availability Jobs in the South East

Third Line Support Engineer (Senior Infrastructure & Support Specialist)

Hiring Organisation
THAMES 360
Location
Banbury, Oxfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £60,000 per annum
Main Job Purpose We are seeking an experienced Third Line Support Engineer to provide advanced technical support, own complex infrastructure issues, and ensure the high availability, security, and performance of critical IT systems. This senior hands-on role focuses on resolving escalated incidents, maintaining and optimising virtualised … deep technical troubleshooting across servers, networks, cloud platforms, virtualisation (VMware), container orchestration (Kubernetes), and Progress OpenEdge databases. Perform root-cause analysis on recurring or high-impact issues and implement preventive measures. Maintain high availability of critical systems through proactive monitoring, patching, updates, and performance tuning. Infrastructure Management ...

Network Engineer - Financial Services

Hiring Organisation
Ashdown Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £75,000 per annum
team. This is a key role with responsibility for the design, delivery, and ongoing support of a global enterprise network , working in a complex, high-availability environment. You will play a pivotal role in modernising network infrastructure , driving technical improvements, and providing senior-level support across the organisation. … switching, firewall, and SD-WAN solutions Integrate switches, routers, wireless controllers, SDN, load balancers, NAC servers, and cloud platforms Ensure network security, resilience, and high availability across global environments Skills & Experience Required Proven experience designing and implementing networks in a large user or enterprise environment Strong Cisco background ...

Senior IT Systems Engineer - Milton Keynes

Hiring Organisation
Circle Group
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Permanent
Salary
£70,000
improving corporate and production IT systems, both on-premise and in the cloud. The Role You will play a key role in ensuring system availability, improving operational resilience, and supporting critical infrastructure. You'll work across Linux and Windows environments, manage cloud platforms, implement cyber security measures, and contribute … ongoing optimisation and documentation of IT systems. This is an excellent opportunity to take ownership of infrastructure that supports high-availability, security-critical services. Key Responsibilities Provision and support IT infrastructure and systems Administer Linux and Windows operating systems Manage cloud platforms (Azure, AWS, Google Cloud, Microsoft ...

VOIP and Infrastructure Engineer - Milton Keynes

Hiring Organisation
Circle Group
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Permanent
Salary
£70,000
improving corporate and production IT systems, both on-premise and in the cloud. The Role You will play a key role in ensuring system availability, improving operational resilience, and supporting critical infrastructure. You'll work across Linux and Windows environments, manage cloud platforms, implement cyber security measures, and contribute … ongoing optimisation and documentation of IT systems. This is an excellent opportunity to take ownership of infrastructure that supports high-availability, security-critical services. Key Responsibilities Provision and support IT infrastructure and systems Administer Linux and Windows operating systems Manage cloud platforms (Azure, AWS, Google Cloud, Microsoft ...

Junior SQL DBA

Hiring Organisation
Oscar Associates (UK) Limited
Location
Essex, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
office) Salary: £40,000 - £50,000 DOE About the Business Our client is a well-established technology company specialising in the delivery of scalable, high-availability software solutions within a fast-paced, data-driven environment. Their platforms support business-critical systems and are designed to perform reliably under … high transaction volumes. The organisation places a strong emphasis on technical quality, stability, and continuous improvement, offering an excellent learning environment for junior technologists looking to develop their skills within a supportive and experienced team. The Role We are seeking a Junior SQL Database Administrator . In this role ...

Infrastructure Engineer

Hiring Organisation
Required IT
Location
Bromley, Kent, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £60,000 per annum
dynamic IT infrastructure team. You will play a key role in maintaining, securing, and optimising the organisation’s network and virtual infrastructure environment, ensuring high availability, performance, and resilience across business-critical systems. This role offers a mix of BAU support and project-based work, including infrastructure upgrades … security best practices across network and virtual environments Provide 2nd/3rd line support for infrastructure and network incidents Support backup, disaster recovery, and high-availability configurations Maintain infrastructure documentation, diagrams, and configuration standards Contribute to infrastructure transformation and cloud integration initiatives Required Experience Proven experience ...

Oracle Database Administrator (DBA)

Hiring Organisation
Deerfoot Recruitment Solutions
Location
Letchworth Garden City, Hertfordshire, South East, United Kingdom
Employment Type
Permanent
Salary
£60,000
annum depending on experience and skills. Job Summary We're seeking an experienced Oracle Database Administrator (DBA) to ensure the performance, availability, security, and integrity of mission-critical Oracle database environments for our client. This role combines proactive maintenance, incident resolution, and strategic improvements across on-premise and cloud … platforms. You'll work primarily remotely, joining a collaborative technical team. Key Responsibilities Administer, configure, and maintain Oracle databases to ensure high availability and performance. Monitor database health and performance, identifying bottlenecks and tuning systems effectively. Perform backup, recovery, patching, and upgrade operations , including disaster recovery planning. Collaborate ...

Data Center Contract Manager

Hiring Organisation
Connect With Ltd
Location
East Grinstead, West Sussex, South East, United Kingdom
Employment Type
Permanent
business critical 24/7/365 operating environment for a key customer. Accountability for meeting or exceeding against contracted SLAs in this high availability environment in the delivery of Critical Engineering and Facilities Management services. Own and develop a professional relationship with the client to deliver positive … development plans are in place to continually raise our game. Following on from the above, implement and manage an effective succession planning plan and high employee engagement scores. Be the responsible lead for all things High Voltage related and the associated activities. Provision of leadership and guidance, advice ...

Data Centre Electrical Shift Manager - Technical

Hiring Organisation
PRS
Location
Slough, England, United Kingdom
Technical Data Centre Shift Manager – Data Centre Operations – High Voltage Experienced Package @74,000K plus Overtime Location: Slough Continental Shift Pattern 12 Hour Shift s Days and Nights Site – AI READY Data Centre Opportunity – Progressive contract and promotion and career development Salary £65,000 Plus Shift Allowance @5K Bonus … operational excellence across critical electrical and mechanical systems. You’ll guide a skilled team of engineers, ensuring safe, compliant, and efficient maintenance across a high-availability facility that powers global operations. This is a hands-on leadership role — ideal for candidates with a strong high-voltage ...

Windows Platform Engineer

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £110,000 per annum
optimisation of resource allocation, efficient load distribution, and latency reduction across critical platforms.* Establish Service Level Objectives (SLOs) to ensure consistent achievement of availability and latency targets for all infrastructure components.* Develop proactive monitoring mechanisms that identify early warning signs rather than merely responding to outages, thus facilitating timely … automation of operational tasks.* Comprehensive knowledge of backup and recovery protocols ensures data integrity across all platforms under your stewardship.* Mastery in clustering technologies, high-availability configurations, replication techniques, and disaster recovery planning is crucial.* The ability to optimise network, storage, server, and virtualisation layers for peak performance ...

Dev Ops Engineer

Hiring Organisation
Comoro
Location
Caterham, Surrey, United Kingdom
Employment Type
Permanent
Salary
£45000 - £55000/annum Plus benefits
ensure proactive incident response. Deploy and manage containerised applications using Docker and orchestrate environments. Monitor system performance, identify bottlenecks, and implement solutions for high availability and scalability. Collaborate with developers to integrate DevOps best practices into the software development lifecycle. Ensure security and compliance across cloud ...

Azure Cloud Engineer

Hiring Organisation
COMPUTACENTER (UK) LIMITED
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Permanent
ability to operate effectively within an agile, service-oriented team. This role involves contributing to platform stability, implementing continuous improvements, and ensuring reliable, high-quality support for enterprise-scale Azure infrastructure while collaborating closely with senior team members and stakeholders. Core Responsibilities: Perform root cause analysis, investigation, diagnosis … reporting of cloud-related issues. Monitor and optimize Azure environments to ensure high availability, performance, and security. Troubleshoot and resolve build, deployment, and infrastructure issues. Ensure compliance with industry standards and best practices for security, scalability, and reliability. Create and maintain detailed documentation for processes, configurations, and procedures. ...

Azure Cloud Engineer

Hiring Organisation
COMPUTACENTER (UK) LIMITED
Location
Hatfield, Hertfordshire, South East, United Kingdom
Employment Type
Permanent
ability to operate effectively within an agile, service-oriented team. This role involves contributing to platform stability, implementing continuous improvements, and ensuring reliable, high-quality support for enterprise-scale Azure infrastructure while collaborating closely with senior team members and stakeholders. Core Responsibilities: Perform root cause analysis, investigation, diagnosis … reporting of cloud-related issues. Monitor and optimize Azure environments to ensure high availability, performance, and security. Troubleshoot and resolve build, deployment, and infrastructure issues. Ensure compliance with industry standards and best practices for security, scalability, and reliability. Create and maintain detailed documentation for processes, configurations, and procedures. ...

Senior Network Engineer

Hiring Organisation
BPHA
Location
Bedford, Bedfordshire, South East, United Kingdom
Employment Type
Permanent
Salary
£65,000
Design, implement, and maintain robust, secure, and scalable network infrastructure solutions? Are you able to ensure high availability, performance, and security of bpha's network systems while mentoring junior staff and collaborating across IT teams? Then we want to hear from you! We're looking for someone … standards. Implement and manage network security measures (firewalls, VPNs, IDS/IPS). Configure and maintain routers, switches, wireless systems, and firewalls. Deploy scalable, high-performance network solutions with minimal downtime. Conduct regular network maintenance, updates, and upgrades. Perform security audits and vulnerability assessments. Respond to and mitigate network ...

Senior Linux Engineer

Hiring Organisation
BOSS Professional Services LTD
Location
High Wycombe, Buckinghamshire, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £75,000 per annum
virtualized environment. Experience in firewall configuration and management. Solid experience in network configuration and management. System monitoring. Monitor, troubleshoot, and optimize network performance, ensuring high availability and minimal downtime. Microsoft AD and Remote Desktop Services (W2019). Experience of PowerShell/Bash scripting (Bash, Korn, C, Shell … hardware The day-to-day duties for the Senior Linux Engineer are: Maintain the company's DR infrastructure. Monitoring of key systems to ensure availability and capacity requirements are met. Be responsible for the scheduling and prioritisation of I&O tasks. Work closely with the senior management team ...

Senior Linux Engineer

Hiring Organisation
Boss Professional Services
Location
High Wycombe, Buckinghamshire, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
title: Senior Linux Engineer Department: IT Infrastructure Location: High Wycombe (2 days per week) Working hours: 9.30am to 6pm Monday to Friday. Reporting to: Head of IT Main purpose(s) of job: The Senior Linux Engineer is responsible and accountable for the smooth running of the computer systems within … Solid experience in network configuration and management (D-Link DGS-1510-52X Switches). System monitoring. Monitor, troubleshoot, and optimize network performance, ensuring high availability and minimal downtime. Microsoft AD and Remote Desktop Services (W2019). Experience of PowerShell/Bash Scripting Desirable: Linux (Red Hat) certification ...

Lead Software Engineer

Hiring Organisation
iDPP
Location
Hampshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
scaling data pipelines and search systems using: ElasticSearch, Weaviate, Pinecone, and other vector databases Engineering secure, containerised architectures using Docker and Kubernetes Ensuring high availability, fault tolerance, and performance for mission-critical workloads Providing technical leadership and mentorship to other engineers Contributing to technical strategy, tooling choices … healthcare, or other regulated domains Familiarity with DevOps practices, CI/CD pipelines, and infrastructure as code Exposure to data engineering, ETL pipelines, or high-volume data processing Experience working in SME or start-up environments , comfortable wearing multiple hats Salary: £90,000 - £100,000 (DOE) + Bonus + ...

AWS Cloud Platform Manager

Hiring Organisation
Ciphr
Location
Reading, England, United Kingdom
identify and resolve issues, implement automation and monitoring solutions, and drive continuous improvement across our infrastructure. Your leadership will be instrumental in fostering a high-performing, innovative engineering culture, optimising system performance, and minimising downtime. You will also be responsible for managing cloud costs effectively, ensuring spend remains within … optimise cloud infrastructure usage to ensure cost efficiency, maintaining spend within agreed budgets. Ensure the optimal performance of cloud services , delivering a seamless and high-quality experience for end users. Take accountability of the on-call rota , ensuring appropriate coverage, managing participation, and leading rapid incident response to maintain ...

Data Engineer

Hiring Organisation
Anson Mccade
Location
Stevenage, Hertfordshire, South East, United Kingdom
Employment Type
Permanent
Salary
£55,000
Large Language Models (LLMs) , including local vector databases and private model hosting. Infrastructure Management: Manage and scale on-premise big data clusters, ensuring high availability without reliance on public cloud providers. Data Governance: Maintain rigorous data quality and security standardscrucial for sensitive engineeringwhile managing complex datasets from disparate … gapped networking. Essential Qualifications Education: A degree in Computer Science, Data Engineering, Mathematics, or a related technical field. Security Clearance: Must be eligible for high-level security clearance (SC or DV level). Technical Rigor: A "security-first" mindset with the ability to troubleshoot complex hardware/software interactions ...

Senior Infrastructure Engineer

Hiring Organisation
Nextech Group Limited
Location
Abingdon, Oxfordshire, South East, United Kingdom
Employment Type
Permanent
Salary
£55,000
projects, manage infrastructure, and provide remote and on-site support. You'll work closely with customers and internal teams to deliver secure, scalable, and high-quality IT solutions. Key Responsibilities Design, implement, and support secure, scalable network solutions across multi-site customer environments. Lead the delivery of network … core infrastructure projects, including new installations, upgrades, and migrations. Manage and maintain on-prem and cloud infrastructure, ensuring high availability, performance, and security. Provide senior-level support for routing, switching, firewalls, VPNs, and WAN connectivity. Administer and support Windows Server environments, virtualised platforms (Hyper-V), and associated services. ...

Secured Network Services Engineer

Hiring Organisation
Charles Stanley & Co. Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
solutions for infrastructure upgrades and modernization. Work with switches, routers, firewalls, wireless controllers, SDN fabrics, load balancers, NAC servers, and cloud networking tools. Ensure high performance, redundancy, and disaster recovery readiness in all network designs. Monitor, Document, and Support: Provide Tier 3 support for complex incidents and escalations. Maintain … network or information security. 3–5 years designing and implementing enterprise networks (10,000+ users). Strong knowledge of Cisco technologies (Layer2 LAN, high availability, routing protocols). Experience with Cisco DNA Centre, SDWAN, and wireless technologies. Preferred Skills: Certifications: Arista ACE L3, CCNP, PCNSE, CISSP, CISM, CISA ...

Software Developer

Hiring Organisation
Anonymous
Location
Oxford, Oxfordshire, United Kingdom
Employment Type
Permanent
Salary
£70000 - £75000/annum BONUS
. Desirable a bachelor’s degree in Automation or Manufacturing engineering Software Engineers C# will be designing robust, multithreaded machine control software for deterministic, high-availability industrial systems. Software Engineers will contribute to the software architecture by focusing on key areas such as reliability, data logging, predictive maintenance … Delta Tau, Aerotech, Galil). In-depth knowledge and hands-on experience with Industrial Ethernet protocols such as EtherCAT, PROFINET, or SERCOS III for high-speed, deterministic control loops. Practical experience integrating industrial communication standards like OPC UA for data exchange, telemetry, and SCADA/MES integration. Knowledge ...

Senior Java Game Engine Developer

Hiring Organisation
Eligo Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
helping build a cleaner, more modular system for the future. About the Company You’ll join a well established iGaming technology business that builds high performance systems used by operators across multiple markets. The engineering culture is collaborative, pragmatic and delivery focused, with plenty of opportunity to influence architecture … monolith to microservices Solid MySQL experience and strong data modelling skills Deep understanding of service architecture, APIs and distributed systems Experience working on scalable, high availability back ends Comfortable working in Agile/Scrum environments Excellent written and spoken English Ideally you’ll come from sportsbook, iGaming ...

Application Security Design Engineer

Hiring Organisation
CBSbutler Holdings Limited
Location
Bracknell, Berkshire, South East, United Kingdom
Employment Type
Permanent
Salary
£55,000
Security Application Design Engineer Onsite in Bracknell Eligible for DV clearance £50-55K per annum + benefits package Join a high-impact engineering team delivering a secure Gateway solution for a major UK defence customer . This is a hands-on Security Application Architect role where … mission-critical infrastructure in a live, security-sensitive environment. Working alongside senior architects and engineering leads, you'll play a key role in maintaining availability, supporting operational teams, and driving technical change across complex systems. What You'll Be Doing Identify and implement infrastructure and application changes to support ...

Azure Cloud Engineer (Remote)

Hiring Organisation
Revybe IT Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £55,000 per annum
optimal performance and security. Collaborate closely with the application team to integrate cloud solutions seamlessly. Utilize technologies such as Azure, Terraform, Azure DevOps. Ensure high availability and scalability of microservices. Implement best practices for container orchestration and monitoring. Implement automated secrets management workflows. Design and maintain CI/ ...