26 to 50 of 75 Contract High Availability Jobs

Card Solutions Architects - Contract role - Sheffield - Immediate

Hiring Organisation
StrategicsIQ Ltd
Location
Sheffield, South Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract
strong focus on banking and payments systems Deep domain knowledge of card processing systems (e.g., authorization, clearing, settlement, dispute management) Proven experience designing high-throughput, low-latency transactional systems Experience operating within large-scale, matrixed enterprise environments Strong background in cloud-native architecture (AWS, Azure, or GCP), including relevant … Data: Distributed data systems, RDBMS/NoSQL, data modelling, data consistency patterns Security: Secure-by-design principles, IAM, encryption, threat modelling, regulatory compliance Resilience: High availability, fault tolerance, disaster recovery, observability (logging, monitoring, tracing) Channels: Experience designing across web, mobile, API gateways, and backend orchestration layers Legacy Integration ...

Database Administrator (Oracle 11g)

Hiring Organisation
Damia Group Ltd
Location
United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
capability Experience of performance diagnostics and tuning Experience supporting Oracle on Linux or Unix platforms Familiarity with ITIL aligned service management processes Experience supporting high availability and mission critical systems Desirable Experience with OEM, ASM or RAC Exposure to later Oracle versions Scripting capability in Shell or Python … Experience within regulated or high assurance environments This temporary contract is outside IR35 and will be delivered on a statement-of-work basis. The supplier will determine the method, resources, and approach to deliver the agreed outcomes This temporary contract requires the successful candidate to undergo and be eligible ...

AWS Architect

Hiring Organisation
Ascendion
Location
London, United Kingdom
Employment Type
Permanent, Contract
secure AWS architectures for market data and pricing platforms Architect and govern API layers (REST/event-driven) for internal and external consumers Ensure high availability, performance and resilience across critical financial systems Solutioning & DevOps Lead solution design across multiple delivery teams Define and embed DevOps and Infrastructure ...

Network Engineer

Hiring Organisation
Rise Technical Recruitment
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day
client is looking for an experienced Network Engineer to be responsible for designing, implementing, securing, and maintaining enterprise network infrastructure with a focus on high availability, performance, and resilience. You will provide advanced technical leadership across routing, switching, firewall administration, and network security operations. ...

NSX-T Engineer / Architect | SC Cleared

Hiring Organisation
Sanderson
Location
Farnborough, Hampshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £750 per day
scalable network solutions across mission-critical environments. This is an opportunity to work at the forefront of software-defined networking within a complex, high-security landscape. Key Responsibilities Lead the design, deployment, and administration of VMware NSX-T, including logical switching, routing, distributed firewalls, and micro- Architect robust Layer … advanced firewalling and security controls, including segmentation strategies, IDS/IPS, and zero-trust methodologies. Support and optimise L4/L7 load balancing and high-availability patterns. Deploy and enhance SD-WAN architectures to ensure resilient, high-performance connectivity. Drive network automation using Python, Ansible, or vendor ...

NSX-T Engineer / Architect SC Cleared

Hiring Organisation
Sanderson Government and Defence
Location
Farnborough, Hampshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £750 per day
scalable network solutions across mission-critical environments. This is an opportunity to work at the forefront of software-defined networking within a complex, high-security landscape. Key Responsibilities Lead the design, deployment, and administration of VMware NSX-T, including logical switching, routing, distributed firewalls, and micro- Architect robust Layer … advanced firewalling and security controls, including segmentation strategies, IDS/IPS, and zero-trust methodologies. Support and optimise L4/L7 load balancing and high-availability patterns. Deploy and enhance SD-WAN architectures to ensure resilient, high-performance connectivity. Drive network automation using Python, Ansible, or vendor ...

Mobile Packet Core Designer

Hiring Organisation
Flint Technology Services
Location
London, United Kingdom
Employment Type
Contract
core networks within a telecom environment. The role will focus on architecture, design, and implementation support across EPC/5G Core platforms, ensuring scalable, high-availability mobile data services. Key Responsibilities Design and develop mobile packet core network architectures across EPC and/or 5G Core environments. Produce … high-level and low-level design documentation (HLD/LLD). Support capacity planning, performance optimisation, and network evolution . Work closely with engineering, operations, and vendor teams to deliver packet core solutions. Contribute to integration and migration activities across LTE and 5G networks. Ensure solutions meet security, resilience ...

Senior Network Architect - DV Cleared

Hiring Organisation
Experis
Location
Basingstoke, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
£550/day
will design and deliver medium to large scale network solutions while supporting multiple work streams and engaging with technical and project stakeholders across a high profile environment. About the Role - Network Architect As a Network Architect , you will work closely with Programme and Project Managers to produce high … Network Architect Strong experience designing secure enterprise networks using Cisco , Juniper , and Gigamon technologies. Knowledge of routing protocols , VRFs, VPNs, QoS, security zones, high availability, and IP addressing design. Skilled in troubleshooting and resolving defects across multi vendor technologies. Experience of overseas infrastructure delivery is essential. Understanding ...

Network Engineer

Hiring Organisation
Harvey Nash
Location
Edinburgh, Midlothian, Scotland, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
overall change programme. Promoting best practice in network management you will ensure that the clients policy and procedures maintain quality assurance levels of a high standard. Main Responsibilities The key focus for this contract at the start is to focus on the following projects: Manage the migration of internet … well as Nexus switches), ideally supported by a recognised network certification. Knowledge of troubleshooting physical network site infrastructure Experience of building, managing and maintaining high availability networks with Cisco devices Working knowledge or experience in some or all of the following subjects: Cisco Networking, Unified Communications ...

SRE - Site Reliability Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£55 - £62/hour
support large-scale cloud infrastructure supporting millions of devices globally. The role focuses on building and scaling monitoring, logging and alerting platforms to ensure high availability and performance of cloud services. Responsibilities Design, deploy and scale observability platforms Manage and scale Prometheus monitoring systems Deploy and maintain large ...

Infrastructure Engineer (Virtualisation)

Hiring Organisation
KBC Technologies UK LTD
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
operate, and continuously improve virtualisation platforms (VMware vSphere/ESXi, Hyper-V). Manage platform lifecycle: patching, upgrades, capacity planning, and hardware refreshes. Ensure high availability, resilience, and disaster recovery readiness. Automate infrastructure provisioning and standardise virtualisation builds. Troubleshoot complex incidents, perform root cause analysis, and implement preventive ...

Infrastructure Engineer (Citrix, VMware, Linux)

Hiring Organisation
Rise Technical Recruitment
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Contract, Temporary, Part Time, Apprenticeship
Salary
£550 - £600/day
This role will involve a blend of BAU support and project delivery, working as part of a wider team responsible for maintaining highly secure, high-availability systems. You will play a key role in ensuring performance, stability, and security across a diverse technology estate, while contributing to ongoing ...

Technical Consultant CGEMJP

Hiring Organisation
Experis
Location
United Kingdom
Employment Type
Contract
Contract Rate
GBP 20 - 345 Daily
around this required. No specific experience needed. Storage Platforms technologies (RAID, SAN, NAS, tape libraries) - Intermediate experience needed. Storage concepts need to be understood. High availability technologies (i.e. based on Hypervisor, OS, Veritas, Oracle) - Intermediate experience needed. Knowledge around Virtualisation HyperV/VMWare is expected. .NET, C++, java … clear interview, knowledge around this required. No specific experience needed. All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest ...

Technical Consultant CGEMJP00326918

Hiring Organisation
Experis
Location
Wales, United Kingdom
Employment Type
Contract
Contract Rate
£20 - £345/day
around this required. No specific experience needed. Storage Platforms technologies (RAID, SAN, NAS, tape libraries) - Intermediate experience needed. Storage concepts need to be understood. High availability technologies (i.e. based on Hypervisor, OS, Veritas, Oracle) - Intermediate experience needed. Knowledge around Virtualisation HyperV/VMWare is expected. .NET, C++, java … clear interview, knowledge around this required. No specific experience needed. All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest ...

Senior Business Analyst (Microsoft 365)

Hiring Organisation
Adecco
Location
Slough, Berkshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£42,450 - £56,500 per annum
week. Supplier-provided Windows 11-compatible laptop required. We are seeking a highly skilled Critical Environment Field Service Engineer to support and maintain high-availability datacentre operations. This role is ideal for a hands-on engineer with strong mechanical/electrical expertise and a passion for delivering safe … equipment maintenance, repairs, and emergency services. Share knowledge with team members to strengthen operational capability and technical understanding. Service Delivery Maximise Critical Environment (CE) availability in partnership with landlord datacenter teams. Oversee day-to-day operation and maintenance of mechanical and electrical systems (MOP/SOP/EOP review ...

AI Developer (Python)

Hiring Organisation
Sanderson
Location
Cardiff, South Glamorgan, Wales, United Kingdom
Employment Type
Contractor
Contract Rate
£550 per day
model deployment. Design RESTful APIs for machine learning services and integrate them with existing systems. Monitor, troubleshoot, and optimize cloud services to ensure high availability and performance. Collaborate with cross-functional teams, including data scientists, cloud engineers, and product managers, to deliver solutions. Ensure best practices in software ...

DevOps Engineer - Contract - Inside IR35

Hiring Organisation
Morgan McKinley
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
with relevant teams Unblock infrastructure-related issues impacting delivery Monitoring & Reliability Support monitoring and alerting for platform services Work with Ops teams to ensure high availability and reliability Contribute to ongoing platform stability improvements Additional Responsibilities Support integration with upstream/downstream systems Assist with performance testing (including ...

Oracle Database Administration Specialist

Hiring Organisation
Experis
Location
Manchester, North West, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700 per day
confidence, supported by robust data foundations that meet stringent operational and regulatory requirements. What you'll be doing - your accountabilities Delivers stable, secure, and high-performing Oracle database environments that underpin critical services and ensure positive operational outcomes. Leads collaboration with development, QA, and operational teams to understand technical … technical expert for database performance, resilience, recovery processes, and incident resolution. Skills Extensive hands-on experience administering Oracle Database 12c in high-availability, mission-critical environments. Proven track record of diagnosing and resolving complex database performance issues, including SQL tuning, AWR/ASH analysis, and optimisation of high ...

SAP Basis Consultant

Hiring Organisation
Robert Half Limited
Location
London, United Kingdom
Employment Type
Contract, Work From Home
experience to lead the technical separation and stabilisation of SAP environments during M&A activity. The ideal candidate will be comfortable operating in a high-pace, results-driven PE environment where timelines are tight, governance is lean, and execution quality is critical. Role SAP Carve-Out & System Separation (Hands … database activities including SAP HANA administration Execute migrations and system refreshes Assist with cloud-hosted environments (e.g., Amazon Web Services, Microsoft Azure) Configure backup, high availability, and disaster recovery setups Operating Within a PE Environment Deliver against tight carve-out deadlines Maintain clear technical risk visibility Focus ...

Full Stack Software Engineer

Hiring Organisation
Matchtech
Location
Tring, Hertfordshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 70 Hourly
software applications on Linux and Windows OS. Proven product development experience from concept through deployment. Familiarity with networked applications that require low-latency and high-availability. Preferred Experience: Knowledge of communication systems design. Understanding of various communication protocols, including RS-232, I2C, CAN, SPI, USB, TCP, and UDP over ...

Network and Firewall Specialist

Hiring Organisation
GTC Recruitment
Location
Aldermaston, West Berkshire, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£44.99/hour
join a secure environment. This hands-on role involves installing, configuring, and troubleshooting network devices, with a focus on Juniper technologies, network security, and high-availability infrastructure. Key Requirements Strong Juniper experience (EX, QFX, SRX/vSRX) Experience installing switches and firewalls Solid networking knowledge ( OSPF … tunnels Familiarity with PKI/certificate management Technical background Responsibilities Monitor network performance and manage incidents Troubleshoot and resolve network issues Support capacity and availability planning Work with stakeholders and third parties Produce Low-Level Designs (LLDs) Provision and configure network devices Additional Info Participation in on-call rota ...

Lead Platform & Resilience Architect - 6 Month Contract - £555 Per Day

Hiring Organisation
Stealth IT Consulting Limited
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
Up to £555 per day Up to £555 per day
define, lead, and deliver resilience strategies across a complex, multi-cluster OpenShift environment. This role blends strategic ownership with hands-on technical depth, ensuring high availability, disaster recovery, regulatory alignment, and platform performance at scale. What Youll Be Doing Define and maintain end-to-end platform resilience strategies ...

Senior SQL Engineer - Outside IR35 - Halifax (West Yorkshire)

Hiring Organisation
Exalto Consulting ltd
Location
Halifax, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract
performance tuning, query optimisation and execution plans Experience working at low level on SQL platform design and configuration Solid knowledge of backup, recovery and high availability strategies Ability to assess, improve and implement monitoring approaches Someone who can work independently, get up to speed quickly and drive real ...

Network Engineer - DV Clearance - Contract

Hiring Organisation
JLA Resourcing Ltd
Location
Twickenham, London, United Kingdom
Employment Type
Contract
Contract Rate
£650-700 a day Inside IR35
with F5 load balancing technologies (global and local). VMware NSX experience. Strong knowledge of routing protocols and L2/L3 networking. Experience supporting high availability data centre networks. Experience working in Defence or highly secure environments. Strong troubleshooting and analytical skills with ownership of complex incidents. Experience ...

OpenShift/zLinux Engineer (IBM Z)

Hiring Organisation
Atrium Workforce Solutions UK Limited
Location
Leeds, Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 450 - 550 Daily
REQUIREMENTS - Strong hands-on experience with OpenShift/container platforms (ideally OpenShift on IBM Z/OCPz) - Proven experience working in enterprise production environments (high availability, regulated services) - Strong Linux system administration skills (RHEL preferred) - Experience with z/Linux (s390x) or Linux on IBM Z environments - Working ...