1 to 25 of 96 High Availability Jobs in the South East

Java Software Engineer

Hiring Organisation
Primis
Location
Maidstone, Kent, UK
Employment Type
Full-time
excellent fit. The Role As a Software Engineer, you will design and develop backend services, APIs, and portal systems that operate within high-availability payment processing platforms. Working within a dynamic development centre, you'll engage with modern frameworks, tools, and engineering practices including: Behaviour-Driven Development … larger squad, always empowered to concentrate on solving technical problems rather than navigating inefficient processes. Key Responsibilities Translate merchant and partner needs into high-quality, scalable backend solutions Design and build robust Java-based systems and RESTful APIs Improve development processes through automation, simplification, and applied engineering experience Collaborate ...

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 Engineer Infrastructure Operations Citrix

Hiring Organisation
TXP
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Contract
Contract Rate
£0.00 - £600/day
Month Contract 2 x a week on site We're looking for an experienced Infrastructure Engineer to join our team and support enterprise-scale, high-availability environments. What We're Looking For: · Extensive experience with Citrix Virtual Apps and Desktops · Design, build, upgrade and support of Citrix environments … Performance tuning and troubleshooting in high-availability environments · Integration with Active Directory and secure access solutions · Understanding of user experience optimisation in virtual desktop platforms · Experience operating Citrix in secure or government environments (desirable) Citrix Certified Associate - Virtualization (CCA-V)Core administration of Citrix Virtual Apps and Desktops ...

Microsoft Teams App Developer / Microsoft 365 Solutions Developer

Hiring Organisation
Lynx Recruitment Ltd
Location
High Wycombe, Buckinghamshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Microsoft Teams App Developer/Microsoft 365 Solutions Developer Outside IR35 | Contract | Hybrid – High Wycombe Contract: Outside IR35 Location: Hybrid (High Wycombe – on-site as required) Start: ASAP Duration: Initial contract with extension potential The Opportunity We are looking for an experienced Microsoft Teams App Developer to deliver …/closed states Confirmation of submitted votes Secret vs non-secret voting behaviour Ensure the app is reliable, accessible, and easy to use in high-pressure live meeting environments Administrative Control & Backend Systems Build backend services allowing administrators (ACCS) to: Start, end, and manage votes Define vote types, labels ...

MySQL DBA | £75,000 + Bonus | SAAS | Health Tech

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
Wokingham, Berkshire, United Kingdom
Employment Type
Permanent
Salary
GBP 65,000 - 75,000 Annual
MySQL DBA Location - Wokingham (Hybrid working) Salary - £75,000 + Bonus, pension, healthcare, life assurance, 25 days holiday Large Sharded Databases | High Scale SaaS Platform I'm supporting a growing UK health tech organisation that is scaling a next generation clinical platform into a fully modern SaaS solution used … challenges at scale and has deep experience working with large sharded MySQL environments . If you're a MySQL DBA who gets excited about high volume, high availability systems this is a role where your technical expertise genuinely makes a difference. The core requirement (what really matters ...

DBA Specialist

Hiring Organisation
Experis
Location
Winchester, Hampshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£425.00 - £465.00 per day
routine database maintenance tasks, including backups, restores, and patching. Monitor database performance and troubleshoot issues. Manage database security and access control. Implement and maintain high availability and disaster recovery solutions. Required Skills: Proven experience as a DBA Specialist or similar role. Strong understanding of database concepts and principles. … Azure SQL Database, Google Cloud SQL) is a plus. Experience with scripting languages (esp. PowerShell) is highly desirable. Experience with database replication, high availability, and disaster recovery solutions. Awareness of Apache Tomcat & JVM Experience of overcoming VLDB challenges. Excellent problem-solving and analytical skills. Strong communication and interpersonal ...

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 ...

Oracle Database Administrator

Hiring Organisation
Stott and May
Location
Wokingham, England, United Kingdom
maintenance and optimisation of database systems. You will work closely with application development, infrastructure and architecture teams to support business-critical systems and ensure high availability, performance and compliance. Key Responsibilities Install, configure and maintain Oracle and SQL Server database environments Perform database upgrades, patching, migrations and backup … security policies Monitor and optimise database performance (indexing, partitioning, AWR reports, tracing) Troubleshoot slow-running queries and optimise SQL code Implement and manage high availability and disaster recovery solutions including RMAN, Data Guard, ASM and SQL Server AlwaysOn Conduct backup validation, disaster recovery planning and failover testing Ensure ...

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 ...

Senior Oracle / SQL Database Administrator (OT Environment)

Hiring Organisation
KBC Technologies UK LTD
Location
Wokingham, Berkshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
environments Perform installations, patching, configuration, upgrades, backups, and recovery Manage database objects, storage, schemas, tablespaces, indexing, and access controls Ensure 24/7 availability of mission-critical operational systems OT Systems Support Work closely with SCADA, control engineers, and plant operations teams Support databases integrated with PLCs, DCS, historians … maintenance windows Troubleshoot issues impacting real-time operations and plant uptime Performance & Reliability Identify and resolve performance issues (wait events, deadlocks, slow queries) Implement high availability solutions including RAC, Data Guard, Always On, and Log Shipping Conduct proactive monitoring, tuning, and capacity planning Backup, Recovery & DR Manage RMAN ...

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 ...

Juniper Network Engineer

Hiring Organisation
Tria Recruitment
Location
Newbury, Berkshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£600.00 - £650.00 per day
Services (AWS) and Microsoft Azure. Key Responsibilities Design and implement enterprise LAN/WAN/WLAN networks using Juniper technologies Plan and deploy high-availability, resilient, and scalable network architectures Integrate on-premise infrastructure with cloud platforms (AWS, Azure) Configure and manage Juniper routers, switches, and firewalls Implement … series or equivalent) Juniper switches (EX/QFX series) Juniper SRX firewalls Solid understanding of: Routing protocols (BGP, OSPF, IS-IS) VLANs, MPLS, VPNs High-availability and failover technologies Experience integrating enterprise networks with AWS and/or Azure Strong troubleshooting capability in complex, multi-site environments 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 ...

Senior Citrix Infrastructure Engineer

Hiring Organisation
Rise Technical Recruitment Limited
Location
Milton Keynes, Buckinghamshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £600 per day
environment. Experience Required: * Extensive experience with Citrix Virtual Apps and Desktops * Design, build, upgrade and support of Citrix environments * Performance tuning and troubleshooting in high-availability environments * Integration with Active Directory and secure access solutions * Understanding of user experience optimisation in virtual desktop platforms * Experience operating Citrix … troubleshooting Strong indicator of enterprise-scale Citrix experience Citrix Certified Expert - Virtualization (CCE-V) (desirable for senior SMEs) Architecture-level knowledge Suitable for complex, high-availability environments Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles. The salary advertised ...

Senior Full Stack Engineer

Hiring Organisation
MarkIT Placements
Location
Didcot, Oxfordshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
From £500 to £700 per day
permanent Key Responsibilities Yourresponsibilitieswillinclude, but not limited to: Backend architecture &APIs (primary focus) Design and evolve scalable backend services in Python using FastAPI for high-availability, high-throughput workloads. Build well-versioned RESTful APIs aligned to OpenAPI/Swagger, with strong conventions for consistency, idempotency, and backward …/ECS). Experience with API versioning, security, documentation strategies, and automated testing. Strong problem-solving skills and the ability to work independently with high ownership. Soft skills High-agency engineer who owns outcomes end to end. Pragmatic, research-driven approach with a bias to ship and iterate. ...

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 ...

Senior Full Stack Engineer

Hiring Organisation
MarkIT Placements
Location
Didcot, Oxfordshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 - 700 Daily
permanent Key Responsibilities Yourresponsibilitieswillinclude, but not limited to: Backend architecture &APIs (primary focus) Design and evolve scalable backend services in Python using FastAPI for high-availability, high-throughput w click apply for full job details ...

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 ...