1 to 25 of 93 High Availability Jobs in the South East

Senior Linux/Unix Admin

Hiring Organisation
Morgan McKinley
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
recently implemented core banking platform (live since October). The successful candidate will be expected to hit the ground running, supporting a complex, high-availability environment spanning 50+ servers and 15-20 databases, while also contributing to ongoing optimisation and platform maturity. Key Responsibilities Database & Platform Management Administer … optimise enterprise databases (including SQL Server and Oracle environments) supporting core financial applications Manage and support clustered database environments, including Oracle RAC Ensure high availability, performance tuning, and data integrity across all database platforms Application & Web Layer Support Support and manage front-end application environments, with experience ...

Infrastructure Engineer (Network Security/ System/ Cloud)

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £80,000 per annum
proxies, perimeter security) Implement and maintain server, endpoint, and end-user security controls Support and enhance core infrastructure services, including VPNs, databases, replication, and high availability Administer and support Windows and Linux environments Own and lead the local technology function, working closely with global teams Operate within … regulated environment and support cloud platforms such as AWS, Azure, or GCP Design, secure, and support high-availability network infrastructure Manage server, endpoint, and perimeter security controls Partner with regional and global technology teams on delivery and improvement initiatives What you'll bring: 6+years' experience in networking technologies ...

Senior Linux / Oracle DBA

Hiring Organisation
Proactive Appointments
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum
Linux/AIX systems , ideally gained within a banking or financial services environment . You’ll be responsible for ensuring the stability, performance, and availability of business-critical banking and finance applications, working closely with senior IT stakeholders and wider application teams. Key Responsibilities Administer, maintain, and optimise Oracle … Linux (RHEL/Oracle Linux) and AIX environments hosted on IBM Power 10 infrastructure Perform system upgrades, patching, performance tuning, and capacity planning Support high availability and disaster recovery solutions using Oracle RAC, ASM, RMAN, and Data Guard Collaborate with application and infrastructure teams to resolve complex production ...

SIEM Engineer

Hiring Organisation
Sopra Steria
Location
Hemel Hempstead, Hertfordshire, South East, United Kingdom
Employment Type
Permanent
Salary
25 days holidays, 6% Contributory pension, 4 x life Insurance
ingestion, enrichment and schema standardisation. Develop and tune security detection content, translating threat intelligence and TTPs aligned to MITRE ATT&CK into actionable, high-value alerts. Manage the full detection content lifecycle: design, test, deploy, monitor, tune and retire, using version control and rollback processes. Automate workflows and platform …/CD, SOAR, scripting and Infrastructure as Code tools such as Terraform and Ansible. Ensure platform performance, stability and resilience through capacity planning, high availability, disaster recovery and proactive monitoring. Provide technical leadership and guidance to internal teams and clients on security monitoring strategy and best practice. What ...

Oracle Database Administrator

Hiring Organisation
Talent Locker
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £650 per day
appointment. Overview Are you an experienced Oracle Database Administrator (DBA) looking to support, manage, and optimise mission-critical Oracle database environments within a high-security public sector organisation? This role requires strong technical capability and experience working in secure and regulated environments. Key Responsibilities Install, configure, patch, upgrade … RMAN, including disaster recovery processes Monitor database performance and deliver tuning and optimisation activities Administer users, roles, privileges, auditing, and database security controls Support high availability solutions including Oracle RAC and Data Guard Troubleshoot incidents and provide on-call support where required Ensure compliance with security standards ...

SQL Server Database Developer

Hiring Organisation
Davies Turner
Location
Dartford, Kent, South East, United Kingdom
Employment Type
Permanent, Work From Home
data design, performance), with enough operational awareness to work safely in a production environment. SQL Server Database Developer - Key Responsibilities: - Design, develop and maintain high-quality T-SQL including stored procedures, views, functions, tables, and indexes - Proactively analyse and resolve database performance bottlenecks using execution plans, indexing strategies … query refactoring - Optimise high-volume transactional queries, reporting workloads, and data integration jobs - Design and support scalable database patterns suitable for high-availability environments - Support application and integration development through all stages of delivery - Support and promote controlled database changes across Development, Test, and Production environments - Work ...

Lead Systems Developer

Hiring Organisation
Rise Technical Recruitment
Location
Redhill, Surrey, United Kingdom
Employment Type
Permanent
build and own mission critical systems used across global communications networks? This is a senior, hands on role within an Enterprise technology team delivering high availability, value added services across satellite, mobile and terrestrial networks. You will take a lead role in system design and development, working with … infrastructure. The Role: Lead system design and development of Linux based software solutions Develop and maintain in house platforms including VoIP, email, security and high availability services Manage CI/CD pipelines, version control and Agile workflows Mentor and support Developers and Graduate Developers Work closely with product ...

Data Centre Electrical Shift Manager - Technical

Hiring Organisation
PRS
Location
Slough, England, United Kingdom
Data Centre Technical Electrical Biased 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 … 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 ...

IT Infrastructure & Support Manager

Hiring Organisation
THAMES 360
Location
Banbury, Oxfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £65,000 per annum
Onsite Salary: £55,000 – £65,000 per annum (dependent on experience) + excellent benefits Are you an experienced IT Infrastructure leader ready to drive high availability, lead projects, and elevate service desk performance in a dynamic business environment? We are seeking a hands-on IT Infrastructure & Support Manager … core business systems, including monitoring, support, and maintenance of Progress OpenEdge databases. Manage day-to-day IT Service Desk operations — ensuring prompt issue resolution, high customer satisfaction, SLA/KPI adherence, and performance tracking. Lead infrastructure projects (upgrades, deployments, growth initiatives) — defining scopes, coordinating resources, delivering on time/ ...

Scala Developer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
recruit a Scala Developer on a 6 months contract basis. Hybrid working - London based Role The Scala Developer will develop highly performant, highly availability, fault tolerant systems that are packaged in containers and deployed on the cloud Scale, manage and build tools to monitor them Determine non-functional requirements … experience of a wide range of best of breed open source and commercial technologies - Scala, Kubernetes, Docker, AWS. Experience of software development for high capacity, high traffic, high availability websites/systems Delivery experience within an agile project is essential Company Global market leading e-commerce ...

Database Administrator

Hiring Organisation
Gigaclear
Location
Abingdon, Oxfordshire, United Kingdom, Shippon
Employment Type
Permanent
Salary
£55000 - £60000/annum
ensure adequate resources for current and future needs. Proactive management of databases, ensuring application and operational performance needs are met. Implement and maintain high availability solutions including replication, clustering, and failover configurations. Document database architectures, configurations, procedures and policies. Implement appropriate security controls to ensure databases and data … relational database concepts, normalisation, and SQL optimisation. Proficiency in SQL and query optimisation across multiple database platforms. Experience with database replication, clustering, and high availability configurations. Familiarity with backup and recovery tools specific to each database platform. Understanding of database security principles and access control mechanisms. Experience with ...

Senior Backend Engineer

Hiring Organisation
MarkIT Placements
Location
Didcot, Oxfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
usable in the real world. If you enjoy owning backend services end to end, care deeply about reliability and API quality in a high-impact environment, this role offers both autonomy and real impact. Requirements 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 compatibility. Implement authentication and authorization using OAuth2/OIDC, session management, and fine-grained permissions. Design and maintain event-driven architectures ...

Junior Dotnet Developer

Hiring Organisation
Capgemini
Location
Milton Keynes, England, United Kingdom
Developer who can work hands‐on across both backend (.NET/C#) and frontend (React/TypeScript) technologies. In this role, you will build high‐volume, highly available enterprise applications using modern design principles, Agile delivery methods, and robust CI/CD pipelines. Collaboration is at the core … with .NET backend APIs. Apply strong expertise in Object‐Oriented Programming (OOP), design patterns, SOLID principles, and architectural patterns. Contribute to the development of high‐volume, highavailability enterprise-scale applications. Work within Agile delivery methodologies, ideally with experience in SCRUM. Design, optimize, and maintain database systems ...

Java React Fullstack Developer - VP

Hiring Organisation
Bond McKenzie
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 - £115,000 per annum
will be at the heart of that transformation. Responsibilities Work closely alongside the Engineering Lead to deliver the technical strategy for your team. Deliver high efficiency, high availability, concurrent and fault tolerant software systems using API-First principles. Design, develop, and implement secure, scalable, and reliable micro ...

Senior Network Engineer

Hiring Organisation
Gold Group Ltd
Location
Farnborough, England, United Kingdom
Experience with SD-WAN or network virtualisation Exposure to cloud networking (AWS, Azure, GCP) Knowledge of network security principles (firewalls, VPNs) Experience working in high-availability or regulated environments What We’re Looking For A proactive, self-driven engineer with a passion for automation and continuous improvement Someone ...

DevSecOps Engineer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Romsey, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£90000 - £100000/annum Benefits package
cloud technologies. In this role, you will help push the boundaries of what's possible-from securely updating deployed equipment to enabling resilient, high-availability systems-while shaping technical direction, mentoring others, and driving best practices across the full software development lifecycle. You will leverage modern cloud ...

Senior DevOps

Hiring Organisation
Lexacom
Location
Banbury, England, United Kingdom
Kubernetes deployment and management responsibilities across the globe. Azure Cloud Infrastructure Management: Design, implement, and manage Azure cloud resources using best practices to ensure high availability, fault tolerance, and security. CI/CD Pipelines: Develop and maintain automated CI/CD pipelines to enable rapid and reliable code ...

Senior Network Engineer

Hiring Organisation
BPHA
Location
Bedford, Bedfordshire, South East, United Kingdom
Employment Type
Permanent
Salary
£65,000
000pa Bedford, Hybrid Permanent, Full Time Can you 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 … 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 Infrastructure Engineer

Hiring Organisation
Context Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £80,000 per annum
Plan and execute migrations, including tenant-to-tenant Microsoft 365 and Active Directory consolidations Collaborate with managed service providers and internal teams to maintain high availability, security and compliance Support business continuity through proactive monitoring, incident management and disaster recovery planning Mentor and provide technical guidance to team ...

Infrastructure Engineer

Hiring Organisation
Lane Clark and Peacock LLP
Location
Winchester, Hampshire, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
infrastructure components securely, including identity and access management, patching and disaster recovery, while promoting good practice and compliance Maintain processes and controls that support high availability and responsive service for stakeholders across physical and cloud-based workloads Maintain and develop awareness of information security, and the controls used … threats within solutions and services Apply modern infrastructure standards and practices Coordinate with third-party vendors, where required, to support the ongoing health and availability of hosted or outsourced services Work with the Security Operations Centre (SOC), as required, on threat detection and response activity in conjunction with Information ...

Senior Platform Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £150,000 per annum
/CD pipelines across backend, frontend, and data services. Implement observability across logging, metrics, tracing, alerting, etc. Monitor and optimise cloud costs while maintaining high availability and performance. Act as an advocate for operational excellence across the engineering organisation. Your Skills and Experience Strong commercial experience designing … Bash. Experience supporting reliability, compliance, and cost efficiency in fast-growing environments. What They Offer Salary up to £160,000 plus meaningful equity. A high-impact role with ownership over core platform infrastructure. Significant technical and personal growth in a fast-moving AI environment. Hybrid working with four days ...

AWS Infrastructure Engineer

Hiring Organisation
Spectrum IT Recruitment
Location
Basingstoke, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£75000 - £85000/annum
Infrastructure Engineer We're working with a successful and fast growing business with over 400 employees, 5000+ customers and a growing, high-demand infrastructure estate. They are invested in modern and emerging technologies including AI - you can expect a fast moving and progressive culture where you will learn, develop … Optimise systems for performance, scalability, security, and cost Collaborate with engineering teams to improve DevOps practices and automation Monitor infrastructure, troubleshoot issues, and ensure high availability Maintain clear documentation and continuously improve processes The ideal candidate will have: Proven experience in AWS infrastructure design, deployment and system administration. ...

AWS Cloud Infrastructure Engineer

Hiring Organisation
Spectrum It Recruitment Limited
Location
Worthing, West Sussex, South East, United Kingdom
Employment Type
Permanent
Salary
£85,000
office in Portsmouth Adhoc travel to data centre on Portsmouth area We're partnering with a fast-growing, tech-driven SaaS business with a high-demand, scaling infrastructure estate. They're investing heavily in modern cloud, automation, and AI-driven technologies, so if you want to work … performance, scalability, security, and cost efficiency Drive automation and DevOps maturity Support both internal systems and customer-facing platforms Troubleshoot complex issues and ensure high availability Continuously improve systems, processes, and documentation What They're Looking For You'll likely bring: Strong experience designing and supporting AWS infrastructure ...

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 ...

Cloud Infrastructure Engineer, AWS

Hiring Organisation
Spectrum IT Recruitment
Location
Portsmouth, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum Benefits
Optimise systems for performance, scalability, security, and cost Collaborate with engineering teams to improve DevOps practices and automation Monitor infrastructure, troubleshoot issues, and ensure high availability Maintain clear documentation and continuously improve processes What We're Looking For: Strong experience with AWS infrastructure (design, deployment, administration) Solid background ...