1 to 25 of 98 Performance Optimisation Jobs in London

would be beneficial. Key Responsibilities: Lead front-end development across LibertyLondon.com (Salesforce Commerce Cloud) and the Fabrics site (WordPress), ensuring high standards of quality, performance, and maintainability. Translate design systems, wireframes, and high-fidelity designs into robust, scalable, and accessible front-end solutions. Own and influence front-end architectural … discovery and planning process. Design, build, and deploy MVT and A/B complex experiments using Dynamic Yield, collaborating with analytics and optimisation teams to improve conversion and usability. Support HTML email development, ensuring consistency, accessibility, and responsiveness across clients and devices. Champion front-end best practices, including performance ...

front-end and web engineers (React) across a mix of seniority levels. Own people management responsibilities including hiring, onboarding, line management, performance management, coaching, mentoring, and career development. Foster a collaborative, inclusive, and high-performance team culture focused on continuous improvement and psychological safety. Technical Leadership & Delivery Provide … modern web technologies, including JavaScript, HTML, CSS, and React-based frameworks . Strong understanding of modern front-end architecture, including state management, routing, navigation, performance optimisation, module federation, microservice architecture and accessibility standards. Experience designing and maintaining CI/CD pipelines , using version control effectively, and working within ...

data augmentation. Automation: Implement automation tools and frameworks (CI/CD) to streamline the deployment and monitoring of machine learning models in production. Performance Optimisation: Optimise data processing workflows and storage solutions to improve performance and reduce costs. Collaboration: Work closely with cross-functional teams, including data ...

turn cutting-edge ideas into real-world products. What You’ll Do Lead the design, development, and maintenance of scalable, secure, and high-performance backend services and APIs. Collaborate across the engineering team — including frontend, product, and QA — to architect solutions that address business needs and technical challenges. Drive … full development lifecycle: requirements, design, implementation, testing, deployment, and support. Improve and optimise existing systems for performance, reliability, and maintainability. Conduct code reviews, provide technical leadership, and mentor junior engineers to uphold best practices. Identify and address security, performance, and scaling bottlenecks. What We’re Looking For 5+ ...

agile team of 5-7 mobile engineers (React Native) across a mix of seniority levels. Own people management responsibilities including hiring, onboarding, line management, performance management, coaching, mentoring, and career development. Foster a collaborative, inclusive, and high-performance team culture focused on continuous improvement and psychological safety. Technical … mobile SDLC. Proven experience of REST/GraphQL API integration with mobile applications Solid understanding of mobile application fundamentals: iOS/Android app lifecycle, performance constraints and release management Proven hands-on software engineering background across modern mobile technologies e.g. cross platform/native development. Strong understanding of modern ...

pipelines, configuring Quantexa components, and translating complex business requirements into scalable, production-ready implementations. You will play a key role in ensuring solution quality, performance, and alignment with wider enterprise data architectures. Why Join? This role offers the opportunity to work on high-impact data initiatives using industry-leading … components, including Entity Resolution, Scoring, and Network Generation, to meet specific use cases Collaborate with Solution Architects and Tech Leads to design scalable, high-performance solutions Translate business and technical requirements into efficient, maintainable data engineering solutions Support the integration of Quantexa within broader enterprise and cloud-based data ...

Experience with TypeScript and React Exposure to frontend design systems Experience with Docker and cloud platforms (AWS preferred) Knowledge of modern web architecture and performance optimisation A proactive, pragmatic mindset someone who takes ownership and gets things done Why apply to be a Software Engineer? Join a mission ...

Experience with TypeScript and React Exposure to frontend design systems Experience with Docker and cloud platforms (AWS preferred) Knowledge of modern web architecture and performance optimisation A proactive, pragmatic mindset — someone who takes ownership and gets things done Why apply to be a Software Engineer? Join a mission ...

pension, private healthcare, gym membership, hardware budget London (Hybrid – 2 days WFH) A high-growth software company is building the next generation of high-performance UI frameworks and data-intensive visualisation technology. Their products power mission-critical applications used by global enterprises, financial institutions, and technology firms, relied … hire engineers who enjoy working close to the metal of the browser, solving problems that demand a deep understanding of algorithms, runtime behaviour, and performance at scale. This is not typical web development. It’s engineering at the limits of what modern browsers can do. What you’ll work ...

Technical Leadership Lead the design and implementation of key features and components of our React Native mobile application. Make informed technical decisions that improve performance, reliability, and scalability. Participate in architectural discussions and help shape the technical direction of mobile applications. Provide support and unblock engineers during development, testing … standards are upheld. Help foster a healthy engineering culture based on learning, knowledge sharing, and accountability. Engineering Quality Champion strong testing, code quality, and performance practices. Knowledge of best practices in security, performance and accessibility Identify areas for improvement within the codebase and contribute to long-term maintenance ...

Data Factory). Experience designing and managing cloud data platforms (Snowflake essential; AWS/Azure/GCP desirable). Solid data modelling knowledge and performance optimisation skills. Awareness of data governance, security, and regulatory compliance . Ability to work closely with technical and business teams to deliver impactful ...

Data Factory). Experience designing and managing cloud data platforms (Snowflake essential; AWS/Azure/GCP desirable). Solid data modelling knowledge and performance optimisation skills. Awareness of data governance, security, and regulatory compliance . Ability to work closely with technical and business teams to deliver impactful ...

Knowledge of Power Platform governance and Center of Excellence practices Experience with PCF controls and modern web technologies (TypeScript, React) Understanding of Power Platform performance optimisation and profiling Experience with Azure integration services such as Service Bus, Event Grid, or API Management Personal Attributes Strong communicator with ...

technologies (e.g., Docker, Kubernetes). Familiarity with DevOps practices and tools for continuous integration and deployment. Solid understanding of system design principles, scalability, and performance optimization. Acxiom is a customer intelligence company that provides data-driven solutions to enable the world’s best marketers to better understand their customers ...

visually effective BI solutions Collaborate with data engineers to integrate dashboards with secure data sources and pipelines Ensure best practices in data visualisation, performance optimisation, and usability Implement security, compliance, and governance standards in all Tableau workbooks and dashboards Develop reusable reporting templates and documentation for internal teams … hands-on experience with: Tableau Desktop and Tableau Server/Tableau Online Data blending, calculated fields, parameters, sets, and LOD expressions Optimising dashboards for performance and usability Solid SQL skills for querying relational and cloud-based data sources Experience integrating Tableau with secure or regulated environments Understanding of data ...

/or Angular Collaborate with back-end teams to integrate with RESTful APIs Ensure applications meet accessibility and usability standards Apply best practices around performance, security and code quality Contribute to UI architecture, reusable components and design systems Work collaboratively using Git-based version control Skills & Experience Required Strong … agile, multi-disciplinary teams Desirable Experience Experience contributing to design systems or component libraries Exposure to CI/CD pipelines for front-end applications Performance optimisation and cross-browser compatibility Mentoring junior developers or providing technical guidance Why Join? Work on high-impact digital services Modern tech stack ...

Experience building large-scale, enterprise-grade applications. Knowledge of state management frameworks (Redux, Context API, etc.). Understanding of UI/UX principles and performance optimization. Familiarity with testing frameworks and CI/CD pipelines. Excellent problem-solving and collaboration skills. Nice to have: Financial services or trading systems ...

load balancers, and firewalls. Skilled with enterprise level deployments across microservices and multi server environments. Experience with MLOps platforms (ideally Azure), database maintenance, and performance optimization. Familiarity with ITIL or ISO27001. Ability to review CVs and participate in the recruitment process. Azure certification to Architecture or DevOps Solutions level ...

London (Liverpool Street) - 3 days onsite Salary: £95,000 + bonus Type: Permanent, full time Overview Senior C++ Engineer needed to work on high-performance trading and analytics systems in a low-latency environment. This is a hands-on role focused on building, optimising and stabilising mission-critical platforms … used across the business. You'll work close to production systems, taking ownership of complex technical issues including crash investigation, deep debugging and performance optimisation. Key Responsibilities Design and build low-latency C++ applications with a strong focus on performance and resilience Own production issues including crash analysis ...

driving improvements across the platform. You'll have a broad scope including hands-on coding (Java) to build tools and automation, incident response, observability, performance optimisation and operational excellence, working with large scale Java JVM distribution systems and message brokers such as Kafka and ActiveMQ, with … terrace, canteen and break out areas. About you: You have a strong Java software engineering background and a deep knowledge of JVM internals and performance tuning You have a good knowledge of Site Reliability Engineering and how to build scalable solutions to improve reliability, productivity and efficiency You have ...

using Laravel, Vue, TypeScript, and MySQL - Lead the delivery of complex features and contribute to system architecture and technical decision-making - Improve automated testing, performance, security, and overall code quality - Build and maintain high-quality APIs and frontend SPA/PWA interfaces - Mentor developers and support best practice across … engineering team The Person: - Strong experience with Laravel, PHP, and modern JavaScript frameworks such as Vue and TypeScript - Solid understanding of application architecture, performance optimisation, and secure coding practices - Experience working with AWS services and containerised deployment environments - Excellent problem-solving skills with the ability to communicate technical ...

technologies and recommend innovations aligned with business objectives Cloud & Infrastructure Design, deploy, and manage cloud-based solutions, primarily within Microsoft Azure Oversee system availability, performance, security, and disaster recovery Ensure infrastructure is scalable, cost-efficient, and compliant with industry standards Data & Reporting Design and oversee data architecture, pipelines … including HTML, C++, and modern web frameworks Provide technical oversight for websites, portals, and Learning Management Systems (LMS) Ensure high standards of code quality, performance, accessibility, and security Review architecture, code, and integrations to ensure maintainability and scalability LMS & Website Management Lead the technical development and ongoing enhancement ...

delivering data ingestion, transformation, and storage patterns using S3, AWS Glue, and Redshift Owning data architecture decisions, including data modelling, partitioning strategies, and performance optimisation Defining and enforcing engineering standards across code quality, testing, CI/CD, IaC, and observability Building and optimising ELT/ETL pipelines using … domains Strong hands-on experience with: Amazon S3 (data lake patterns, partitioning, lifecycle management) AWS Glue (Jobs, Crawlers, PySpark, orchestration) Amazon Redshift (data modelling, performance tuning, WLM, Spectrum) Advanced Python (PySpark) and SQL skills Experience implementing CI/CD pipelines and Infrastructure as Code Proven ability to engage senior ...

code quality through unit and integration testing with Vitest and React Testing Library . Participate in code reviews and contribute to architectural decisions. Optimize performance and troubleshoot issues across various browsers and devices. What You Bring: Required Skills & Experience: Experience developing modern web applications with React and TypeScript . … delivering high-quality service. Preferred Qualifications: Experience with schema validation using Zod . Familiarity with component documentation tools (e.g., Storybook ). Understanding of performance optimisation techniques for large-scale applications. Experience developing frameworks and tools specific to AI/ML Familiarity with cloud platforms and development in cloud ...

with the modern data stack, including dbt, Airflow (or similar) and Python Solid experience with AWS and/or Azure Strong SQL skills and performance optimisation experience Familiarity with CI/CD, DevOps and DataOps practices Confident communicator, comfortable engaging with senior technical and non-technical stakeholders Nice ...