1 to 25 of 40 High Availability Jobs in the Thames Valley

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 ...

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 ...

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 ...

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 ...

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 ...

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. ...

CNI Senior Infrastructure Analyst

Hiring Organisation
Pontoon
Location
Wokingham, Berkshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
national energy infrastructure operational. Key Responsibilities Core Responsibilities Deliver 24×7 system management and administration of Oracle databases in a mission-critical, high-availability environment. Perform proactive maintenance, monitoring, and performance optimisation . Support both legacy and modern Oracle environments across a diverse estate. Administer and support Oracle … Linux (core OS for Oracle estate) Some PostgreSQL environments Limited Microsoft SQL Server exposure Operating Expectations Work calmly and methodically within a high-stakes, high-pressure environment where actions can have nationwide impact. Operate with a high degree of autonomy , reliability, and accuracy. Collaborate closely with internal ...

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. ...

Senior Linux Red Hat Engineer

Hiring Organisation
BOSS Professional Services LTD
Location
High Wycombe, Buckinghamshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
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 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 ...

Red Hat Deployment and Platform Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
From £400 to £420 per day
Cleared Preferred SC Eligible Can be considered The Role We are seeking an experienced Red Hat Deployment and Platform Engineer to join our high-performance engineering team. The ideal candidate will be responsible for deploying, automating, and maintaining enterprise-grade platforms built on Red Hat technologies and container orchestration … Responsibilities Platform Deployment & Engineering Deploy, configure, and manage platforms based on Red Hat Enterprise Linux and related technologies. Implement and maintain Kubernetes clusters, ensuring high availability, scalability, and secure configurations. Manage build, deployment, and orchestration processes using Jenkins and similar CI/CD tools. Deployment Automation & Pipeline Management ...

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 ...

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 ...

Senior RedHat Linux Engineer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Wokingham, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£350 - £368/day
ensuring stability, automation, and continuous improvement across services. Working within an ITIL/DevSecOps-based support model, you will engage directly with customers, produce high-quality documentation, and ensure critical systems remain secure, optimised, and highly available. Knowledge, Experience & Technical Expertise Proven track record in the design, build … Strong understanding of network protocols and topologies Extensive customer-facing experience within an IT service environment Experience supporting business-critical, real-time systems with high availability requirements Methodical, positive, and solutions-focused approach to problem-solving Proven accountability in driving issues through to successful resolution Ability to produce ...

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. ...

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 ...

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 ...

Network and Firewall Specialist

Hiring Organisation
Circle Recruitment
Location
Berkshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£40 - £45 per day
configuring/policy configuration/troubleshooting Juniper firewalls, switches and routers Knowledge of some of the following: WAN/LAN design, device clustering, high availability Junos Space, Security Director, Apstra Security Platforms: FortiGate, F5 BIG-IP (load balancing/AWAF), Pulse Secure/Ivanti, high grade encryption … said issues. Creation of LLD's for projects if required. Maintaining up-to-date knowledge on network technologies. Working to assist with capacity & availability management of various networks. Problem Solving: investigate and resolve problems for services within their own area of responsibility. Provisioning network services and devices where appropriate. ...

SQL DBA

Hiring Organisation
Sanderson Recruitment
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
Up to £417.22 per day + Inside IR-35
experienced SQL DBA to support a range of secure government platforms. You'll work within a skilled technical team to deliver reliable, high-performing database services across Microsoft SQL Server environments, with additional exposure to PostgreSQL and MySQL. Day to day, you'll handle installation, configuration, patching and maintenance … plus performance tuning, monitoring, and health checks. You'll own backup and recovery processes, high-availability solutions, and troubleshooting of complex database issues. You'll also support developers with database design, schema improvements and optimised SQL. The role involves improving performance through indexing strategies, query optimisation and capacity ...

Network Engineer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Wokingham, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£420 - £440/day
including LAN, WAN, WLAN and VPNs to meet business and security requirements. Maintenance & Optimisation Monitor network performance, proactively identify issues, and troubleshoot to ensure high availability and optimal performance. Security Implement and maintain network security controls including firewalls, IDS/IPS, and access controls in line with security ...

3rd Line Cloud Engineer - Azure

Hiring Organisation
Akkodis
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Permanent
Salary
£55000 - £65000/annum
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. The 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. ...