101 to 125 of 242 Performance Optimisation Jobs in England

leadership, escalation support, and operational oversight for core enterprise infrastructure, including VMware, Windows Server, Active Directory, DNS, and DHCP Drive infrastructure design, capacity planning, performance optimisation, root cause analysis, and continuous service improvement Participate in an on-call rota and collaborate across teams to maintain service availability ...

OpenAI, Bedrock), prompt orchestration, tool usage and interaction patterns. Expertise in AI system design including state management, memory strategies, evaluation approaches, guardrails, observability and performance optimisation for LLM-powered systems. Strong communication and influencing skills, with experience mentoring engineers and driving high standards across teams while engaging both ...

clear documentation including data mappings, business definitions, and data quality findings. Essential Skills: Advanced SQL including complex joins, CTEs, window functions, reconciliation queries, and performance optimisation. (Must Have) Power BI development including data modelling, DAX, report development, dashboard creation, and publishing. (Must Have) Strong experience investigating data quality issues ...

full software development lifecycle, leading UK and offshore teams to deliver high-quality outcomes Ensure strong engineering standards, minimising technical debt and optimising platform performance Own backlog prioritisation and delivery focus, ensuring alignment to business-critical objectives Work with development teams to define requirements, user stories, and acceptance criteria … using Agile methodologies Monitor delivery progress, performance, and key metrics to drive continuous improvement Stakeholder & Customer Engagement Communicate progress, risks, and updates to stakeholders and senior management Act as a bridge between technical teams and the wider business to ensure aligned delivery Support Sales and business development by articulating ...

dashboard-building role. You’ll be working on the underlying systems that make complex visualisations fast, accurate, and scalable. The challenges range from rendering performance and interaction design through to algorithms, graphics, API design, and numerical correctness. What you’ll be doing Designing and building core charting features used … developers around the world Working across rendering, interaction, animation, and visualisation infrastructure Solving performance-critical problems involving Canvas, SVG, and large datasets Improving correctness, precision, and usability across a sophisticated charting platform Designing APIs that are elegant, flexible, and easy for developers to adopt Taking features from initial concept ...

idempotency, backfills, and operational recovery. Experience with analytical or columnar databases such as ClickHouse or similar technologies. Knowledge of partitioning, materialised views, and query optimisation techniques. Experience with numerical and data processing libraries including NumPy, pandas, Polars, or Arrow. Understanding of performance optimisation, memory usage, multiprocessing ...

deliver features from concept through to production Contribute to and evolve front-end architecture, component libraries, and shared patterns Maintain high standards across performance, accessibility, and overall user experience Support production stability and continuously improve the quality of live systems Provide technical guidance, contribute to code reviews, and mentor … TypeScript and modern frameworks such as React, Vue.js, or similar Solid front-end engineering fundamentals including: Component-based architecture State management Responsive design Accessibility Performance optimisation Internationalisation Experience with automated testing (component and end-to-end) using tools such as Playwright, Cypress, or similar Familiarity with CI/ ...

Native) to ensure consistency, alignment and synergies are found. This role is perfect for a hands-on frontend expert who loves building responsive, high-performance web and mobile applications in the cloud, while taking accountability for managing a distributed engineering team to deliver exceptional outcomes for the client. … Collaboration: In collaboration with the Mobile Lead (React Native), provide dedicated architectural guidance for the mobile application, as required, ensuring best practices in mobile performance optimisation, offline storage, native bridging, and App Store/Google Play deployments. Engineering Culture: Set the "gold standard" for frontend engineering routines. Drive ...

shell scripts for automation, job scheduling, and data processing Perform data analysis, mapping, and transformation for complex data sources Ensure data quality, integrity, and performance optimisation across ETL processes Collaborate with business and technical teams to translate requirements into scalable data solutions Support testing, deployment, and production support …/SQL) Proficiency in UNIX/Linux shell scripting Proven experience working in Data Warehouse/ETL environments Experience in data integration, transformation, and performance tuning Strong understanding of ETL frameworks, data pipelines, and batch processing Desirable Skills Working knowledge of SAS (especially in ETL context) Experience in migrating ...

Native) to ensure consistency, alignment and synergies are found. This role is perfect for a hands-on frontend expert who loves building responsive, high-performance web and mobile applications in the cloud, while taking accountability for managing a distributed engineering team to deliver exceptional outcomes for the client.\ NKey … Collaboration: In collaboration with the Mobile Lead (React Native), provide dedicated architectural guidance for the mobile application, as required, ensuring best practices in mobile performance optimisation, offline storage, native bridging, and App Store/Google Play deployments.\ NEngineering Culture: Set the "gold standard" for frontend engineering routines. Drive ...

Following continued growth and significant investment, they're looking to appoint an experienced Site Reliability & Network Systems Administrator to take ownership of the reliability, performance and resilience of their infrastructure. This is an opportunity to move beyond traditional IT support into a role where you will have genuine influence … will be involved in: Designing, implementing and administering Microsoft Azure environments Building scalable, resilient and secure cloud infrastructure Azure tenant setup, configuration and ongoing optimisation Managing networking, routing, firewalls, VPNs and connectivity Infrastructure monitoring, alerting and performance optimisation Implementing and managing web monitoring and observability platforms Incident ...

maintain native Android applications using Kotlin/Java and the Android SDK Integrate RESTful APIs and external services into mobile workflows Optimise application performance, including caching strategies, offline support, and API efficiency Support production releases, ensuring readiness for Google Play Store submission Address Play Store compliance issues and respond … Proven experience integrating REST APIs (or similar services) Hands-on knowledge of Google Play Console, app signing, and release management Experience with mobile performance optimisation and secure coding practices Familiarity with modern Android architecture components (e.g., MVVM, Jetpack libraries) Active SC clearance Desirable: Experience working with GDS (Government ...

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 ...

teams and external stakeholders to gather requirements, build technical solutions, and support ongoing system improvements. You'll also contribute towards integrations, customisations, testing, and performance optimisation across Oracle environments. This role would suit someone who enjoys a mixture of technical development work and stakeholder engagement within enterprise-scale ...

performance. Project Delivery: Oversee the entire data science/AI delivery lifecycle, from data exploration to model development/tuning to deployment, monitoring, and performance optimisation using ML and AI Ops best practices. Collaboration: Lead and work within cross‐functional teams comprising of business leaders, product managers, data ...

solutions integrating on-prem environments with AWS using Direct Connect/VPN. Defining multi-region, multi-VPC, HA/DR architectures. Driving capacity planning, performance optimization, and infrastructure modernization. Implementing Infrastructure as Code (Terraform/CloudFormation) and enabling automation. Ensuring security, compliance, observability, and governance across enterprise platforms. ...

mentor a team of analysts, ensuring high-quality output across projects and campaigns. • Build and manage datasets to support campaign planning, targeting, and performance optimisation. • Apply Python and analytical techniques to solve complex data challenges. • Translate technical findings into clear, actionable insights for non-technical stakeholders. • Support pre-campaign ...

/17) in production systems Deep experience in low/ultra-low latency environments Strong Linux systems programming background Multithreading, concurrency, memory/performance optimisation Network-level understanding (TCP/IP, sockets, latency tuning) Highly Desirable Market data/trading/exchange systems experience FIX protocol, matching engines … trade messaging eBPF/Kernel tracing/performance tooling (bcc, bpftrace, kprobes) High-performance distributed systems (non-observability focused) Overview You will be working on systems that sit close to the data path, ensuring trade events can be captured, processed, and correlated in Real Time across distributed infrastructure. ...

technology expertise. We support Tier-1 operators and technology vendors through large-scale RAN transformation programmes — from strategy and design through to deployment, optimisation, and ongoing operations. We leverage emerging technologies including Open RAN, 5G Advanced, 6G, Satellite, Generative AI, and Autonomous Networks to deliver measurable business outcomes … technical design session with a vendor engineering team. This role spans the full RAN value chain: pre-sales solutioning, architecture definition, programme delivery, performance optimisation, and the application of AI/ML and Autonomous Network techniques to transform how networks are operated. Support end-to-end RAN transformation ...

will act as the technical authority for Tableau and take ownership of BI standards across the organisation. You will focus on improving the scalability, performance, and governance of the existing BI environment while supporting a major cloud migration programme. Key responsibilities include: Leading end-to-end Tableau development across … Desktop, Prep, and Cloud Defining and enforcing best practice for dashboard design, data modelling, and performance optimisation Owning BI governance frameworks, including data quality and reporting standards Supporting and enabling business users to develop self-service analytics capability Writing and optimising complex SQL across cloud and on-premise ...

supporting an innovative technology business developing cutting-edge wearable products that combine hardware, embedded systems, AI, and data analytics to deliver real-time performance coaching. The business has grown from an early-stage concept into a globally recognised technology platform, leveraging large-scale real-world data and intelligent sensing … sensors, and product development. You'll work closely with product, AI, mobile, and data teams to develop wearable electronics that deliver accurate real-time performance feedback in demanding environments. This role is ideal for an engineer who enjoys owning products from concept through to manufacture and wants ...

contribute to the development of cloud and hybrid architecture, ensuring systems remain secure, available and scalable. Day-to-day responsibilities will include administration and optimisation of Microsoft 365 services such as Exchange Online, SharePoint, Teams and Entra ID, alongside ownership of modern endpoint management through Microsoft Intune, including Autopilot … resolution of cloud and identity related security incidents. You will also contribute to back up, disaster recovery and business continuity planning, monitor platform performance and resilience, manage certificates and domains, and work closely with third party suppliers where required. The role includes producing clear technical documentation, contributing to infrastructure ...

production systems \n Deep experience in low/ultra-low latency environments \n Strong Linux systems programming background \n Multithreading, concurrency, memory/performance optimisation \n Network-level understanding (TCP/IP, sockets, latency tuning) \n\n Highly Desirable \n \n Market data/trading/exchange systems … experience \n FIX protocol, matching engines, or trade messaging \n eBPF/Kernel tracing/performance tooling (bcc, bpftrace, kprobes) \n High-performance distributed systems (non-observability focused) \n\n Overview \n You will be working on systems that sit close to the data path, ensuring trade events ...

production-ready storefronts Develop and maintain custom Shopify features and components Integrate third-party apps, APIs, and services (payments, shipping, CRM, etc.) Optimise website performance, speed, and SEO Troubleshoot, debug, and maintain existing Shopify stores Collaborate with internal teams to deliver projects to deadline and specification Requirements 25 years … Experience working with Shopify themes and APIs Understanding of responsive design and cross-browser compatibility Familiarity with Git version control Awareness of SEO and performance optimisation best practices Desirable Skills Experience developing Shopify apps Knowledge of React or modern JavaScript frameworks Experience with Shopify Hydrogen or headless commerce ...

robust row-level security (RLS) Deliver: Layer 1 : Standard operational and management reporting Layer 2 : OLAP-style analytical capabilities for deeper organisational insight Conduct performance optimisation and tuning across the solution Produce technical documentation to support operational handover Collaborate with stakeholders to ensure delivery aligns with discovery outputs … datasets, tabular models, and reporting) Strong experience building data warehouse solutions , including: Star schema design Fact and dimension modelling SCD implementation T-SQL performance tuning Experience working within always-on or mission-critical environments with strict availability and refresh constraints Ability to deliver within an established programme , taking ...