25 of 25 Contract Performance Optimisation Jobs in the UK excluding London

Performance Application Engineer

Hiring Organisation
Arden White Limited
Location
Northampton, Northamptonshire, East Midlands, United Kingdom
Employment Type
Contract
Overview We are supporting a leading Formula One organisation in the search for a Performance Engineer to join their Customer Engineering division on a long-term contract basis. This is a high-impact opportunity to work at the cutting edge of hybrid power unit performance, collaborating directly with … customer teams to deliver measurable gains in performance, reliability, and driveability. You will play a key role in shaping how power unit systems are developed, tested, and optimised in one of the most technically advanced environments in motorsport. Role Purpose As a Performance Engineer, you will be responsible ...

Data Engineer

Hiring Organisation
EMBL-EBI
Location
Saffron Walden, Essex, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£60,000
storage and retrieval. You will work closely with cross-functional teams to analyse requirements, propose new data pipeline architectures, and implement solutions to improve performance and scalability. The tasks for this post include the following: Analyse existing data pipelines and identify areas for improvement, optimisation, and scalability. Work … closely with Bioinformaticians and annotators to integrate data pipelines with existing systems and applications. Monitor data pipeline performance, troubleshoot issues, and implement solutions to ensure reliability and efficiency. Stay current with industry trends and best practices in data engineering and recommend new technologies or tools to enhance data infrastructure. ...

Power BI Developer

Hiring Organisation
Orbit Group
Location
CV3, Binley Woods, Warwickshire, United Kingdom
Employment Type
Contract
Contract Rate
£28277 - £35345/annum group incentive bonus, 27 days holid
actionable insights to users across operational, tactical and executive levels. Build robust data models in Power BI: define tables, relationships, hierarchies, measures using DAX, performance optimisation, data refresh strategy. Ensure data accuracy, consistency and integrity - reconcile Power BI outputs with source systems, data warehouses, and business rules. Implement … based security (row-level security, workspace permissions) in the Power BI service. Apply visual design best practices, including layout, interactivity, filter/slicer design, performance considerations, drill-throughs, mobile-ready views. Work with the Data Engineering team to ensure data pipelines, data marts and warehouses deliver appropriate and performant ...

OS Software Developer

Hiring Organisation
Guidant Global
Location
Gloucester, Gloucestershire, South West, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
role is ideal for someone who thrives in collaborative engineering environments, enjoys solving complex problems, and is passionate about building scalable, secure, and high-performance applications. Key Responsibilities Develop high-quality software for client projects, working individually or as part of a development team Collaborate with technical leads … experience with Git and open-source platforms (GitHub/GitLab) Ability to build and deploy scalable applications or libraries Strong debugging, problem-solving, and performance optimisation skills Understanding of open-source licensing (MIT, GPL, Apache) Experience with cloud platforms such as AWS or Azure Ability to create clear ...

LLM / GenAI Engineer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
that drive real business value. Key Responsibilities Design, build, and deploy LLM-powered applications and GenAI solutions Develop and optimise prompt engineering strategies for performance and accuracy Implement RAG (Retrieval-Augmented Generation) pipelines using structured and unstructured data Fine-tune and customise foundation models and LLMs where required. Integrate … vector search Experience working with LLM APIs and frameworks (e.g., OpenAI, Azure OpenAI, Anthropic, Hugging Face) Strong understanding of prompt engineering techniques and optimisation strategies Experience working with vector databases (e.g., Pinecone, Weaviate, FAISS, Chroma) Practical experience with model evaluation, tuning, and performance optimisation Experience integrating ...

Senior Data Platform Engineer (Fixed Term Contract)

Hiring Organisation
Microlise
Location
Nottingham, Nottinghamshire, East Midlands, United Kingdom
Employment Type
Contract
Contract Rate
£55,000
Supporting modern Lakehouse architecture, ingestion, processing and data serving layers Embedding security, governance and compliance controls across the platform Driving platform observability, monitoring, and performance optimisation Owning aspects of cost management (FinOps) and platform efficiency Collaborating with Data Engineers, Analytics & AI teams to deliver trusted data products What ...

Business Intelligence / Data Engineer

Hiring Organisation
INTEC SELECT LIMITED
Location
Swindon, Wiltshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£530 per day
initiatives. AI Initiatives: Collaborate with wider teams on AI-related initiatives and roadmap delivery. Data Governance: Apply best practices around data quality, governance and performance optimisation. Stakeholder Collaboration: Work closely with technical and business teams to deliver high-quality data solutions and support organisational objectives. Continuous Improvement: Identify opportunities ...

DNS Architect - SC Cleared

Hiring Organisation
Hays Technology
Location
Wokingham, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£563 - £581/day Up to £581 inside IR35
CLEARED (ACTIVE) My client is seeking an experienced and highly skilled DNS Architect to design, implement, and maintain scalable, secure, and high-performance Domain Name System (DNS) solutions. This role is critical in ensuring the reliability and efficiency of network naming services across enterprise and cloud environments. The ideal … cloud platforms Manage and optimise DNS platforms (BIND, Microsoft DNS, Infoblox, AWS Route 53, Azure DNS) Lead DNS strategy including scalability, high availability, and performance optimisation Oversee DNS migrations, upgrades, and transformations Implement and maintain DNS security (DNSSEC, DDoS protection, threat mitigation) Monitor performance, availability, and ensure ...

BI Engineer

Hiring Organisation
Circle Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £530 per day
support and new capability development * Collaborate with wider teams on AI-related initiatives and roadmap delivery * Apply best practices around data quality, governance and performance optimisation * AWS Data Engineering stack (e.g. Glue, S3, Lambda, Redshift, Athena) * SQL (advanced level) * Python (for data processing and pipeline development) * Infrastructure/ ...

Full Stack Developer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
design and development across the platform. Design, develop, and maintain both front-end user interfaces and back-end services, APIs, and databases. Monitor platform performance and operational metrics, identifying, investigating, and resolving issues as they arise. Collaborate closely with business stakeholders to understand opportunities to improve user and seller … backend development. Bachelor's or Master's degree in Computer Science, Engineering, or a related discipline. Strong understanding of database design, data modelling, and optimisation, particularly using SQL. Hands-on experience working with Google Cloud Platform (GCP) services. Experience monitoring production systems, triaging issues, and distinguishing between critical incidents ...

Sybase DBA

Hiring Organisation
Adecco
Location
Cheshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
configure, and maintain Sybase ASE and Replication Server environments Perform upgrades, patching, migrations, and platform transitions (RHEL7/8 RHEL9) Monitor and optimise database performance, resolving bottlenecks, deadlocks, and query issues Manage backup, recovery, and high-availability/DR solutions Provide L2/L3 production support and assist development … documentation and compliance standards Participate in on-call support rotation Required Skills: 5+ years' Sybase DBA experience (ASE & Replication Server) Strong SQL tuning and performance optimisation expertise Experience supporting 24/7 production environments Solid Unix/Linux and scripting skills Strong troubleshooting, communication, and stakeholder management skills ...

Power BI Developer

Hiring Organisation
VIQU IT Recruitment
Location
Cardiff, South Glamorgan, Wales, United Kingdom
Employment Type
Contract
Contract Rate
£325 per day
Power BI Developer to help stabilise, optimise, and deliver reporting across a complex platform environment. The successful Power BI Developer will work to address performance issues and data models on existing reports, as well as refining current Power BI outputs, implementing a scalable Fabric/data lake approach … delivering in-app reporting within Model-Driven Apps (Dataverse). Key Responsibilities Optimise and refactor existing Power BI reports to resolve performance and data model issues Build and enhance reporting solutions using Microsoft Fabric and data lake/lakehouse architectures Deliver Power BI dashboards using scalable semantic models Develop ...

Solution Architect BMC HELIX/ITSM

Hiring Organisation
Gazelle Global Consulting Ltd
Location
Luton, Bedfordshire, South East, United Kingdom
Employment Type
Contract
Experience integrating Helix with cloud, infrastructure, monitoring and third-party platforms Expertise in automation, orchestration and AI-driven service management capabilities Platform upgrades, migrations, performance optimisation and troubleshooting Strong stakeholder engagement and technical leadership skills Desirable: BMC certifications Azure, AWS or hybrid cloud experience Python, PowerShell, REST ...

Senior Storage & Backup Infrastructure Engineer

Hiring Organisation
CBSbutler Holdings Limited
Location
Newport, Gwent, Wales, United Kingdom
Employment Type
Contract
Contract Rate
Up to £550 per day + inside ir35
deep expertise in NetApp storage technologies, enterprise backup solutions, and complex data centre environments. You will play a key role in the design, implementation, optimisation and support of business-critical storage and backup platforms while working closely with technical teams, architects and stakeholders. Key Responsibilities Lead the design, implementation … environments. Provide technical leadership and guidance to engineers and project teams. Produce high-quality technical documentation, implementation plans and operational procedures. Support capacity planning, performance optimisation and storage lifecycle management. Troubleshoot and resolve complex infrastructure issues across storage, backup and SAN environments. Provide 2nd/3rd line support ...

API Developer - Golang/Python

Hiring Organisation
Talent Smart Limited
Location
Sheffield, Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 550 - 575 Daily
impact within a major financial organisation, this could be a strong fit. Role Overview You'll be responsible for designing, building, and integrating high-performance APIs, with a strong focus on Golang (preferred) or Python . You'll also collaborate with Front End teams, contributing to web-facing components … seamless integration across internal and external systems Collaborate with cross-functional teams including Front End developers Contribute to architecture decisions and best practices Support performance optimisation and scalability initiatives Required Skills & Experience Strong experience with Golang (preferred) or Python Proven track record in API development (design, build, integration ...

Application Support Manager

Hiring Organisation
Proactive Appointments
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£475 - £500 per day
continuous improvement of critical business applications, including core banking platforms. This role combines hands-on technical oversight with leadership responsibility, ensuring high availability, performance, and strategic development across application services. You will play a key role in managing both change delivery and BAU support, while driving operational excellence … application support, resolving incidents with a focus on root cause analysis Oversee delivery of projects and enhancements from design through to BAU transition Ensure performance optimisation, system monitoring, and platform stability Collaborate with infrastructure teams on platform performance, backup, and recovery Drive best practices across development, testing ...

Data Engineer

Hiring Organisation
Addition
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 per day
shape the success of complex migration and reconciliation initiatives. This role offers the chance to work within a cloud-first environment, improving data quality, performance, and scalability while supporting critical business outcomes. Role Overview: Location: Remote (Must be UK-based) - no third parties Active SC Clearance is essential Package … Doing: Design, build, and enhance data migration and transformation solutions within AWS. Review existing data engineering solutions and identify opportunities to improve performance, reliability, and scalability. Optimise data processing workflows to increase efficiency across migration and reconciliation activities. Develop robust logging, monitoring, and error-handling capabilities within Python-based ...

Salesforce Principal Engineer - 6-Month Contract - Inside IR35 - Hybrid (Windsor, 1 Day Onsite)

Hiring Organisation
Hamilton Barnes
Location
Windsor, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
design principles Support API and integration architecture across enterprise platforms Champion AI-enabled engineering practices and continuous improvement initiatives Ensure platform reliability, resilience, and performance optimisation Key Skills Required Strong Salesforce engineering experience within complex enterprise environments Deep expertise in Salesforce Service Cloud and Industry Cloud solutions Strong ...

Cisco Catalyst NOC Engineer

Hiring Organisation
MECS Communications Ltd
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Contract
Catalyst 9500 platforms. Purpose: To provide 24x7 operational support, monitoring, incident management and technical troubleshooting across critical Cisco network infrastructure, ensuring maximum network availability, performance and service reliability. Technology Stack: * Cisco Catalyst 3850/9300/9500 * Cisco IOS/IOS-XE * Layer 2 & Layer 3 Networking * OSPF/… Routing * VLANs/STP/QoS * Network Monitoring & Alerting Tools * Incident & Fault Management Systems * Network Performance Monitoring * Configuration Management & Backup * WAN/LAN Infrastructure Keywords: NOC Engineer, Network Operations Engineer, Cisco Network Engineer, Cisco Catalyst Engineer, TAC Engineer, NMC Engineer, Shift Network Engineer, Cisco 9300, Cisco 9500, Cisco ...

Cisco Catalyst NOC Engineer

Hiring Organisation
MECS Communications Ltd
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Contract
Catalyst 9500 platforms. Purpose: To provide 24x7 operational support, monitoring, incident management and technical troubleshooting across critical Cisco network infrastructure, ensuring maximum network availability, performance and service reliability. Technology Stack: * Cisco Catalyst 3850/9300/9500 * Cisco IOS/IOS-XE * Layer 2 & Layer 3 Networking * OSPF/… Routing * VLANs/STP/QoS * Network Monitoring & Alerting Tools * Incident & Fault Management Systems * Network Performance Monitoring * Configuration Management & Backup * WAN/LAN Infrastructure Keywords: NOC Engineer, Network Operations Engineer, Cisco Network Engineer, Cisco Catalyst Engineer, TAC Engineer, NMC Engineer, Shift Network Engineer, Cisco 9300, Cisco 9500, Cisco ...

Mainframe Middleware Infrastructure Engineer (CICS Liberty)

Hiring Organisation
Gazelle Global Consulting Ltd
Location
Scotland, United Kingdom
Employment Type
Contract
expertise across CICS, z/OS and IBM WebSphere Liberty to support a major enterprise transformation programme. This role focuses on the engineering, configuration, optimisation and support of modern Java workloads running within CICS Liberty environments. Key Skills & Experience: Deep knowledge of CICS systems engineering and z/… infrastructure CICS region setup, configuration and JVM server management IBM WebSphere Liberty administration and runtime configuration Java workload management, JVM tuning and performance optimisation RACF, TLS, certificates, keyrings and security integration REST/API enablement and modern integration practices Problem determination using dumps, traces, logs and SMF data ...

SAP Technical Architect - 12-Month Contract - Inside IR35 - Hybrid (Leeds, 3-4 Days Onsite)

Hiring Organisation
Hamilton Barnes
Location
Leeds, Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Basis, ABAP, Fiori/UI5, and integration teams Design and review end-to-end SAP and non-SAP integration patterns Support SAP landscape design, performance optimisation, high availability, and disaster recovery strategies Conduct technical impact assessments, architecture reviews, and troubleshooting activities Ensure compliance with SAP security, governance … Technical Architecture experience across SAP S/4HANA and SAP ECC Deep understanding of SAP Basis, SAP HANA, landscape design, HA/DR, and performance tuning Experience with SAP BTP Integration Suite (CPI), SAP PI/PO, APIs, IDocs, and event-driven architectures Strong knowledge of SAP Fiori/ ...

Murex Environment Manager / Technical Lead

Hiring Organisation
Access Computer Consulting plc
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
candidate will possess deep technical expertise in Murex architecture, environment management, release coordination, middleware, and infrastructure support, with strong experience managing platform stability, deployments, performance optimization, and incident resolution in a global banking environment. You must have several years of IT experience, including a number of years supporting Murex ...

RF Engineer

Hiring Organisation
Stott & May Professional Search Limited
Location
Essex, South East, United Kingdom
Employment Type
Contract
Contract Rate
Up to £0.00 per day
Contribute to the development of advanced electronic subsystems within energy-intensive platforms. - Apply knowledge of energy storage technologies to system-level design, integration and performance optimisation. - Support technical proposals, engineering studies and programme delivery activities. - Collaborate with engineering teams and stakeholders to develop innovative technical solutions. - Participate in design ...

Infrastructure Engineer – Secure Browser – Azure Virtual Desktop – Expedia Group

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
Wallington, Surrey, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £439 per day
Azure Virtual Desktop & Modern Workspace Engineering Provide operational support and engineering expertise for Microsoft Azure Virtual Desktop environments, including host pool administration, image management, performance optimization, and troubleshooting Help deliver a secure, high-performing modern workspace experience for enterprise users Support virtual desktop lifecycle activities such as provisioning, patching … based end-user computing services Windows Endpoint & Core Infrastructure Support Maintain Windows 10/11 endpoints and Windows Server environments, including patching, application deployment, performance tuning, and system health monitoring Support enterprise management capabilities across Intune, Active Directory, DNS, DHCP, identity management, and related infrastructure services Troubleshoot complex ...