76 to 88 of 88 Performance Tuning Jobs in London

Desktop Support Technician

Hiring Organisation
Randstad Technologies
Location
South West London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£200 - £201 per day
problems in computer systems and provide technical solutions with a goal of 90% First Call Resolution. Troubleshooting: Expertly troubleshoot OS issues (BSOD, App Crashing, Performance tuning), VPN connectivity, and networking basics. Incident Lifecycle: Take ownership of employee issues from start to finish. If escalation is required, monitor ...

IT Applications Manager

Hiring Organisation
CONEX EUROPE LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
+ Bens The successful applicant will lead the management and continuous improvement of the Law firms business applications portfolio, ensuring system performance, integration, and alignment with the firms strategic and security objectives. The role will actively engage with Partners, fee earners and business support teams to identify, prioritise … shelf software that increases efficiencies across the firm. Support the firms migration of systems to Microsoft Azure, ensuring application compatibility, security, and performance optimisation. Collaborate with the Infrastructure & Security Manager on dependencies between application and infrastructure layers. Contribute to the Configuration Management Database (CMDB), ensuring accuracy of application assets ...

IT Hosting and Provisioning Manager - Trading

Hiring Organisation
Harvey Nash
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Enterprise Linux , ensuring robust, secure, and reliable platform operations. Oversee and optimize VMware vSphere environments, including capacity planning, lifecycle management, and performance tuning. Manage and support enterprise-grade storage platforms such as PureStorage, ensuring data availability, performance, and integrity. Design, maintain, and troubleshoot Kubernetes clusters across hybrid environments. ...

Infrastructure Engineer

Hiring Organisation
Adroit People Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 per day
segmentation, WAF/CDN, identity-aware proxies, TLS, certificates). Experience with observability (logs/metrics/traces), flow logs, packet capture tools, and performance tuning. Strong documentation, stakeholder communication, and operational discipline (runbooks, change governance). Nice to Have Experience with Apptio, Turbonomic for cost and performance ...

Data Platform Engineer- Snowflake - Outside IR35 - Remote

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £450 per day
platform or cloud engineering, with a strong focus on Snowflake in enterprise environments. Deep expertise in Snowflake, including warehouse management, RBAC, data sharing, and performance tuning. Hands-on experience with Terraform and Infrastructure as Code for Snowflake and cloud resources. Proven ability to design and automate CI/… federation, and network policies. Experience with observability and monitoring, including query profiling, usage tracking, and external monitoring tools. Demonstrated success in cost optimisation and performance management in large-scale Snowflake environments. Excellent collaboration and communication skills, with experience working across engineering, data, security, and compliance teams. A proactive approach ...

Java Developer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £800/day
understands that in this world, latency is the only metric that matters . The Tech Stack The Core: Low-latency Java (Mechanical Sympathy, Memory Tuning, GC Avoidance). The Connectivity: TransFICC specialization, TCP/UDP, Kernel-level optimization. The Infrastructure: AWS, Ansible, Linux Performance Tuning. The Philosophy ...

SAP Consultant

Hiring Organisation
Adroit People Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£70,000
DataStore Objects (ADSOs), CompositeProviders, Open ODS Views, and Transformations. Implement extractors, data flows, and integration with SAP ECC/S4HANA systems. Ensure data lifecycle, performance optimization, and process chain automation. 2. Reporting & Analytics Develop SAP BW queries using BEx and integrate them with SAC or other reporting tools. Create … intuitive dashboards, visual stories, and KPIs that support business decision-making. Ensure compliance with reporting standards and performance best practices. 3. Stakeholder & Communication Collaborate closely with business users to translate requirements into technical designs. Provide clear documentation, solution walkthroughs, and training as needed. Communicate effectively with cross-functional teams ...

FX e Trading Senior Full Stack Engineer (React TypeScript + Java)

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£759 - £900 per day
About the role Help architect and build a new FX e-trading platform from the ground up, working across the stack to deliver high-performance, resilient, and secure systems. Partner closely with product, trading, and infrastructure teams to deliver features end-to-end—from UI and desktop container experiences … drive state management, data visualization, and UX for trading workflows. Optimize latency, throughput, and reliability across the stack; instrument observability (metrics, tracing, logging) and performance profiling. Establish engineering best practices: code standards, testing strategies (unit/integration/E2E), CI/CD, secure coding, and release management. Mentor engineers ...

Senior Full Stack Engineer FX e Trading London

Hiring Organisation
Atrium Global
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £750 to £900 per day
+ Java) to help architect and build a new FX e-trading platform from the ground up, working across the stack to deliver high-performance, resilient, and secure systems. You will partner closely with product, trading, and infrastructure teams to deliver features end-to-endfrom UI and desktop container … drive state management, data visualization, and UX for trading workflows. Optimize latency, throughput, and reliability across the stack; instrument observability (metrics, tracing, logging) and performance profiling. Establish engineering best practices: code standards, testing strategies (unit/integration/E2E), CI/CD, secure coding, and release management. Mentor engineers ...

Senior Full Stack Engineer – FX e Trading – London

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Temporary
Salary
£750 - £900 per day
+ Java) to help architect and build a new FX e-trading platform from the ground up, working across the stack to deliver high-performance, resilient, and secure systems. You will partner closely with product, trading, and infrastructure teams to deliver features end-to-end—from UI and desktop … drive state management, data visualization, and UX for trading workflows. Optimize latency, throughput, and reliability across the stack; instrument observability (metrics, tracing, logging) and performance profiling. Establish engineering best practices: code standards, testing strategies (unit/integration/E2E), CI/CD, secure coding, and release management. Mentor engineers ...

Senior Full Stack Engineer – FX e-trading – Java / React

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£759 - £900 per day
About the role Help architect and build a new FX e-trading platform from the ground up, working across the stack to deliver high-performance, resilient, and secure systems. Partner closely with product, trading, and infrastructure teams to deliver features end-to-end—from UI and desktop container experiences … drive state management, data visualization, and UX for trading workflows. Optimize latency, throughput, and reliability across the stack; instrument observability (metrics, tracing, logging) and performance profiling. Establish engineering best practices: code standards, testing strategies (unit/integration/E2E), CI/CD, secure coding, and release management. Mentor engineers ...

Network Engineer Hybrid - Central London

Hiring Organisation
Akkodis
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £650 per day
zScaler Private Access (ZPA).Configure, deploy, and optimise zScaler solutions across multiple regions.Work closely with security, infrastructure, and network teams to ensure smooth integration.Troubleshoot performance issues, policy configurations, and user access flows.Provide technical guidance and documentation for regional teams. 20% - BAU Networking Provide operational support … network activities.Troubleshoot L2/L3 network issues across WAN/LAN/Wi-Fi environments.Review and maintain network configurations, monitoring, and performance tuning. 20% - Azure Networking & Cloud Support Azure networking workloads as part of the Cloud First initiative.Configure and maintain Azure VNets, Firewalls, VPN Gateways, ExpressRoute, and related services.Troubleshoot ...

ServiceNow Developer

Hiring Organisation
Infoplus Technologies UK Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £400 to £450 per day
Certification ServiceNow Implementation Specialist Certification Experience working with ServiceNow domains SC cleared or eligibility to get it. Primary Responsibilities include: Monitor platform health and performance; apply patches and upgrades. Troubleshoot and resolve platform-related issues, escalating to ServiceNow support when necessary. Ensure compliance with organisational standards and security policies. … Proficiency in HTML, CSS, JavaScript, and scripting for ServiceNow customisation. Experience with Agile/SCRUM project management methodologies Experience with workflow design, integrations, and performance tuning. Certifications such as ServiceNow System Administrator and ITIL Foundation are highly desirable. At least 4 to 5 years of hands-on ServiceNow administration ...