1 to 25 of 58 Permanent Performance Optimisation Jobs in West London

and our content-rich B2B platform (s). You’ll work at the heart of our digital operations, optimising user journeys, enhancing on-site performance, and collaborating with internal teams to deliver impactful content and seamless experiences Key Responsibilities: E-commerce Website & Content Management • Manage product listings, descriptions, pricing … content strategies to improve navigation, user experience, and conversion rates. • Maintain inventory accuracy and coordinate with teams to ensure product availability. Landing Page & UX Optimisation • Develop and optimise landing pages for promotions, product launches, and marketing campaigns. • Enhance site structure and user journeys to drive engagement and online sales. … Conduct A/B testing to optimise layouts, calls-to-action, and product presentation. SEO & Performance Optimisation • Implement on-page SEO best practices, including keyword optimisation, metadata, and image alt text. • Work on technical SEO improvements, ensuring site speed, mobile-friendliness, and proper indexing. • Use Google Analytics More ❯

and our content-rich B2B platform (s). You’ll work at the heart of our digital operations, optimising user journeys, enhancing on-site performance, and collaborating with internal teams to deliver impactful content and seamless experiences Key Responsibilities: E-commerce Website & Content Management • Manage product listings, descriptions, pricing … content strategies to improve navigation, user experience, and conversion rates. • Maintain inventory accuracy and coordinate with teams to ensure product availability. Landing Page & UX Optimisation • Develop and optimise landing pages for promotions, product launches, and marketing campaigns. • Enhance site structure and user journeys to drive engagement and online sales. … Conduct A/B testing to optimise layouts, calls-to-action, and product presentation. SEO & Performance Optimisation • Implement on-page SEO best practices, including keyword optimisation, metadata, and image alt text. • Work on technical SEO improvements, ensuring site speed, mobile-friendliness, and proper indexing. • Use Google Analytics More ❯

Skills & Experience 5+ years of commercial experience in C# and .NET. Expertise in: .NET Framework and WinForms Modern .NET (.NET 9) SQL Server (including performance optimisation) Front-end tech (HTML, CSS, JavaScript) Proven experience with application modernisation, including migrating legacy WinForms applications to modern web platforms (Blazor preferred More ❯

Skills & Experience 5+ years of commercial experience in C# and .NET. Expertise in: .NET Framework and WinForms Modern .NET (.NET 9) SQL Server (including performance optimisation) Front-end tech (HTML, CSS, JavaScript) Proven experience with application modernisation, including migrating legacy WinForms applications to modern web platforms (Blazor preferred More ❯

candidate will lead a feature team responsible for ensuring the seamless migration and integration of Oracle databases, while upholding best practices in data integrity, performance, and security. This is a pivotal role for an experienced professional passionate about data engineering and transformational delivery. Key Responsibilities Lead the planning and … execution of Oracle database modernisation, conversion, and migration activities, ensuring alignment with project timelines and deliverables. Oversee database architecture assessments and performance optimisation efforts. Collaborate with development and architecture teams to improve data flow and streamline database operations. Conduct thorough testing and validation of migrated data to ensure … members. Essential Skills & Experience Extensive experience as an Oracle DBA with deep expertise in Oracle Exadata. Strong knowledge of Oracle Database architecture, tools, and performance tuning techniques. Proven track record with data migration methodologies and execution. Skilled in SQL and PL/SQL programming. Experience with database backup, recovery More ❯

candidate will lead a feature team responsible for ensuring the seamless migration and integration of Oracle databases, while upholding best practices in data integrity, performance, and security. This is a pivotal role for an experienced professional passionate about data engineering and transformational delivery. Key Responsibilities Lead the planning and … execution of Oracle database modernisation, conversion, and migration activities, ensuring alignment with project timelines and deliverables. Oversee database architecture assessments and performance optimisation efforts. Collaborate with development and architecture teams to improve data flow and streamline database operations. Conduct thorough testing and validation of migrated data to ensure … members. Essential Skills & Experience Extensive experience as an Oracle DBA with deep expertise in Oracle Exadata. Strong knowledge of Oracle Database architecture, tools, and performance tuning techniques. Proven track record with data migration methodologies and execution. Skilled in SQL and PL/SQL programming. Experience with database backup, recovery More ❯

using Python, with experience in Django, FastAPI, or similar frameworks · Architect and maintain production-grade, multi-tenant systems with a focus on security and performance · Develop RESTful and asynchronous APIs for internal and external consumption · Ensure database performance and reliability with relational and vector database technologies Cloud & Infrastructure … Design and implement AWS-based cloud infrastructure using infrastructure-as-code approaches · Optimise system resources, cost, and performance in cloud environments · Implement robust monitoring, logging, and alerting systems · Maintain CI/CD pipelines for reliable deployment and testing LLM, Agents & AI Integration · Design, build and maintain AI-driven information … cloud services (preferably AWS) and infrastructure-as-code · Experience with containerisation, orchestration, and CI/CD pipelines · Understanding of database scaling, caching strategies, and performance optimisation · Familiarity with LLM technologies and latest utilisation methodologies · Strong understanding of software design principles and coding standards Preferred Skills and Capabilities · Experience More ❯

using Python, with experience in Django, FastAPI, or similar frameworks · Architect and maintain production-grade, multi-tenant systems with a focus on security and performance · Develop RESTful and asynchronous APIs for internal and external consumption · Ensure database performance and reliability with relational and vector database technologies Cloud & Infrastructure … Design and implement AWS-based cloud infrastructure using infrastructure-as-code approaches · Optimise system resources, cost, and performance in cloud environments · Implement robust monitoring, logging, and alerting systems · Maintain CI/CD pipelines for reliable deployment and testing LLM, Agents & AI Integration · Design, build and maintain AI-driven information … cloud services (preferably AWS) and infrastructure-as-code · Experience with containerisation, orchestration, and CI/CD pipelines · Understanding of database scaling, caching strategies, and performance optimisation · Familiarity with LLM technologies and latest utilisation methodologies · Strong understanding of software design principles and coding standards Preferred Skills and Capabilities · Experience More ❯

and microservices leveraging Python and Kafka Collaboration : Partner with frontend developers to seamlessly integrate backend logic. Contribute to UI development using TypeScript and React Performance Optimization : Ensure applications are efficient, scalable, and dependable. Troubleshooting & Monitoring : Detect and resolve issues using tools Database Management : Design and manage data models and More ❯

and microservices leveraging Python and Kafka Collaboration : Partner with frontend developers to seamlessly integrate backend logic. Contribute to UI development using TypeScript and React Performance Optimization : Ensure applications are efficient, scalable, and dependable. Troubleshooting & Monitoring : Detect and resolve issues using tools Database Management : Design and manage data models and More ❯

Overview: My client is a specialist engineering company that builds white label video streaming applications for global media brands. They focus on delivering high performance, scalable solutions across Roku, web, and mobile platforms. They are now looking for an experienced Roku Developer to join their team and work across … multiple branded streaming apps. This person will take the lead on feature development, performance optimisation, and ensuring alignment with Roku certification standards. Key Responsibilities: Build and deploy Roku applications using BrightScript and SceneGraph Configure and launch white-label apps for 18+ video streaming clients Lead development of major … features including templated views, DRM, and EPG Integrate ad tech (Roku Ad Framework) and analytics (Google Analytics) Drive performance enhancements, reducing load time, memory use, and CPU usage Required Skills: Strong experience with BrightScript and SceneGraph Track record of Roku app development and deployment Familiarity with Roku Advertising Framework More ❯

Overview: My client is a specialist engineering company that builds white label video streaming applications for global media brands. They focus on delivering high performance, scalable solutions across Roku, web, and mobile platforms. They are now looking for an experienced Roku Developer to join their team and work across … multiple branded streaming apps. This person will take the lead on feature development, performance optimisation, and ensuring alignment with Roku certification standards. Key Responsibilities: Build and deploy Roku applications using BrightScript and SceneGraph Configure and launch white-label apps for 18+ video streaming clients Lead development of major … features including templated views, DRM, and EPG Integrate ad tech (Roku Ad Framework) and analytics (Google Analytics) Drive performance enhancements, reducing load time, memory use, and CPU usage Required Skills: Strong experience with BrightScript and SceneGraph Track record of Roku app development and deployment Familiarity with Roku Advertising Framework More ❯

backend systems. Full-Stack Development : Build and maintain scalable front-end and back-end systems using Node.js and React (or other JavaScript frameworks). Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with cross-functional teams including product managers, designers, and other developers More ❯

backend systems. Full-Stack Development : Build and maintain scalable front-end and back-end systems using Node.js and React (or other JavaScript frameworks). Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with cross-functional teams including product managers, designers, and other developers More ❯

security considerations. Evaluate, select, and implement VDI technologies (e.g., Citrix Virtual Apps and Desktops, VMware Horizon, Microsoft Azure Virtual Desktop). Ensure high availability, performance optimization, and disaster recovery of VDI environments. Collaborate with IT security, network, and application teams to ensure seamless integration and compliance. Provide technical leadership More ❯

security considerations. Evaluate, select, and implement VDI technologies (e.g., Citrix Virtual Apps and Desktops, VMware Horizon, Microsoft Azure Virtual Desktop). Ensure high availability, performance optimization, and disaster recovery of VDI environments. Collaborate with IT security, network, and application teams to ensure seamless integration and compliance. Provide technical leadership More ❯

integrated reporting and metrics development aligned with clinical and strategic goals. Participating in lifecycle and change management of analytics platforms. Contributing to system and performance optimizations. Mentoring junior team members and leading reporting development (advanced/expert levels only). Key Tools & Technologies Visualization Tools: Tibco Spotfire, Tableau, Power More ❯

integrated reporting and metrics development aligned with clinical and strategic goals. Participating in lifecycle and change management of analytics platforms. Contributing to system and performance optimizations. Mentoring junior team members and leading reporting development (advanced/expert levels only). Key Tools & Technologies Visualization Tools: Tibco Spotfire, Tableau, Power More ❯

interoperability. Design and implement data solutions leveraging SAP Datasphere to enable efficient data management and analytics. Provide guidance on BTP best practices, including security, performance optimization, and deployment strategies. Mentor junior developers and solution architects on BTP-related technologies and best practices. Work closely with development and operations teams … the latest SAP technologies in a dynamic, innovative environment. Collaborate with a diverse team and drive impactful solutions for leading clients. Competitive salary with performance-based incentives. Access to continuous learning and career development opportunities. Lemongrass Consulting is proud to be an Equal Opportunity and Affirmative Action employer. We More ❯

interoperability. Design and implement data solutions leveraging SAP Datasphere to enable efficient data management and analytics. Provide guidance on BTP best practices, including security, performance optimization, and deployment strategies. Mentor junior developers and solution architects on BTP-related technologies and best practices. Work closely with development and operations teams … the latest SAP technologies in a dynamic, innovative environment. Collaborate with a diverse team and drive impactful solutions for leading clients. Competitive salary with performance-based incentives. Access to continuous learning and career development opportunities. Lemongrass Consulting is proud to be an Equal Opportunity and Affirmative Action employer. We More ❯

goals. 🛠️ Tech Stack : React, .NET 🧠 You’ll bring : Proven expertise in React and .NET in production environments Strong experience with system design, observability, and performance optimisation Great communication and stakeholder engagement skills Background in financial, payroll, or reporting systems is a bonus 💼 Contract Details Day rate : TBC Length More ❯

goals. 🛠️ Tech Stack : React, .NET 🧠 You’ll bring : Proven expertise in React and .NET in production environments Strong experience with system design, observability, and performance optimisation Great communication and stakeholder engagement skills Background in financial, payroll, or reporting systems is a bonus 💼 Contract Details Day rate : TBC Length More ❯

experience Proficient in PHP Familiar with Git, Jira, Bitbucket, and agile processes. Solid problem-solving abilities and a collaborative mindset. Understanding of responsive design, performance optimisation, and cross-browser/device compatibility. If this exciting opportunity could be of interest - please let me know ASAP. Interviews can be More ❯

experience Proficient in PHP Familiar with Git, Jira, Bitbucket, and agile processes. Solid problem-solving abilities and a collaborative mindset. Understanding of responsive design, performance optimisation, and cross-browser/device compatibility. If this exciting opportunity could be of interest - please let me know ASAP. Interviews can be More ❯

deep experience in both legacy and modern technology stacks. Key Responsibilities Software Engineering Leadership Set and own the technical roadmap, ensuring architectural scalability, security, performance, and maintainability of all software systems. Oversee full lifecycle software development — from requirements, technical design, development, testing, deployment, to post-release monitoring and maintenance. … cloud-native applications and services using Microsoft Azure , including Azure Functions, LogicApps, and container-based services. Drive cost-effective use of cloud services and performance optimization across environments. Ensure cloud architectures support observability, fault tolerance, and high availability. Data Engineering & Intelligent Systems Guide the engineering team in data modelling … software and infrastructure meet organizational security and compliance requirements (e.g., GDPR, ISO 27001, OWASP Top 10). Team Management & Culture Build and scale high-performance engineering teams, including backend, frontend, full-stack, data, and security engineers. Define and track KPIs for engineering productivity, quality, and performance. Promote an engineering More ❯