1 to 25 of 86 Performance Optimisation Jobs in London

development projects from design through to delivery Provide technical leadership via architecture decisions, code reviews, and mentoring Ensure best practices across CI/CD, performance optimisation, security, and accessibility Collaborate with clients, Product Managers, and Business Analysts to align technical solutions with business goals Support, inspire, and develop … Developer, or similar role delivering complex Shopify projects Familiarity with modern theme build tools such as Vite.js or Webpack Strong understanding of scalable architecture, performance optimisation, and accessibility standards Experience with DevOps workflows, GitHub, and modern CI/CD pipelines Excellent communication and leadership skills Perks & Benefits Fully ...

development projects from design through to delivery Provide technical leadership via architecture decisions, code reviews, and mentoring Ensure best practices across CI/CD, performance optimisation, security, and accessibility Collaborate with clients, Product Managers, and Business Analysts to align technical solutions with business goals Support, inspire, and develop … Developer, or similar role delivering complex Shopify projects Familiarity with modern theme build tools such as Vite.js or Webpack Strong understanding of scalable architecture, performance optimisation, and accessibility standards Experience with DevOps workflows, GitHub, and modern CI/CD pipelines Excellent communication and leadership skills Perks & Benefits Fully ...

Senior Compiler Engineer Location: London Salary: £80k – £100k We’re partnering with a well-funded, fast-growing semiconductor and AI computing company building high-performance compute platforms at the intersection of advanced silicon, accelerators, and compiler technology. They are expanding their compiler organisation and are looking for Senior … Staff-level Compiler Engineers to work on performance-critical, hardware-aware compiler systems that directly impact next-generation compute products. Senior Compiler Engineer Responsibilities Development and evolution of LLVM-based and custom compiler toolchains Performance optimisation for AI/ML and accelerator-driven workloads Low-level code ...

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 ...

delivering highly awarded, culture-defining campaigns for some of the world's biggest consumer brands. Operating at the intersection of creative, strategy, data, and performance, the agency uses insight and analytics to shape big creative ideas rather than treating data as a standalone function. The focus is on long … plays a central role in influencing senior decision-making. THE TEAM You'll join an established data and insight function embedded closely with strategy, performance, platform, and account management teams. The team works at the heart of client relationships, supporting major global accounts and helping shape campaign direction through ...

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 ...

with TDD and writing automated tests before coding. Nice-to-Have Skills Experience in healthcare or public sector projects. Knowledge of monitoring tools and performance optimisation. Familiarity with microservices architecture. What you'll get in return Flexible working options available. What you need ...

established trading-related application and drive its ongoing development. You will manage and enhance the existing codebase, deliver new features, ensure reliability and performance, and help evolve the system as the business grows. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working … latency, high-performance applications. What You'll Do Maintain, extend, and optimise an existing Python-based trading application Add new features and improve current capabilities with a focus on performance, reliability and clean architecture Build and optimise real-time pipelines handling high-frequency data Improve latency, throughput ...

technical solutions Participate in code reviews and contribute to continuous improvement of development standards Debug, troubleshoot, and resolve technical issues Contribute to system design, performance optimisation, and scalability Work within Agile/Scrum delivery teams (if applicable) Required Skills & Experience Strong commercial experience with Python Experience building ...

product initiatives, with workload expected to be strong over the initial contract period. Continuation beyond this term will be subject to business needs and performance . You will work on the development and enhancement of a modern, user-focused web application, collaborating closely with UX designers, back-end engineers … alignment with design systems, accessibility standards, and service guidelines Write clean, maintainable, and testable code; participate in code reviews and knowledge sharing Contribute to performance optimisation and Front End best practices Work within Agile delivery processes, contributing to continuous improvement Maintain, refactor, and incrementally modernise existing Front ...

they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross-functional teams to deliver ...

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 ...

scalability. Collaborate with product managers, designers, and engineering leadership to define and drive technical strategy and roadmap. Lead cross-functional technical initiatives, including performance optimisations, system refactoring, and migrations. Establish and enforce engineering best practices across the organisation (code quality, security, testing, CI/CD). Mentor and coach ...

role is designed for students who want exposure to real production systems rather than simulated coursework. You will contribute to the deployment, stability, and performance of a FastAPI-based backend used by live clients, working in a professional, fully remote engineering environment. The internship focuses on learning through contribution … Contribute to monitoring, logging, and alerting for production and staging environments Support infrastructure security through proper handling of secrets and environment variables Assist with performance optimisation, reliability improvements, and cost awareness Participate in regular check-ins and receive guidance and feedback from senior engineers Who This ...

Node.js, TypeScript, React , and modern cloud engineering Hands-on experience with AWS serverless , particularly Lambda, Step Functions, DynamoDB Solid understanding of scalable architecture and performance optimisation Experience in scale ups, startups, or SMEs where speed, ownership, and adaptability matter Strong debugging, problem solving, and delivery skills Interest ...

Node.js, TypeScript, React , and modern cloud engineering Hands-on experience with AWS serverless , particularly Lambda, Step Functions, DynamoDB Solid understanding of scalable architecture and performance optimisation Experience in scale ups, startups, or SMEs where speed, ownership, and adaptability matter Strong debugging, problem solving, and delivery skills Interest ...

working collaboratively with development teams to ensure that solutions are not only clearly defined and feasible, but also fully aligned with high standards regarding performance, security, and customer experience. Skills and Experience * Solid foundation from previous hands-on experience in full stack development (e.g., .NET, modern front-end frameworks … directly * Familiarity with RESTful and GraphQL API consumption and integration, including security considerations and cloud-native architectures (Azure preferred) * Working knowledge of architecture patterns, performance optimisation strategies, and security best practices * Awareness of content delivery approaches, accessibility standards, and regulatory compliance requirements (GDPR & PECR), ensuring solutions are designed ...

data engineering and AI. They're known for building intelligent, data-driven platforms and are investing heavily in the long-term scalability, security, and performance of their data infrastructure. THE BENEFITS Fully remote working across the UK and Europe Long-term, permanent role with architectural influence Exposure … data systems while developing Python-based tooling to automate, scale, and evolve the wider data platform. You'll play a key role in database performance, security, migrations, and integrations, working closely with engineering and data teams to support an AI-focused product ecosystem. DATABASE ENGINEER ESSENTIAL SKILLS Expert-level ...

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 ...

experience with AWS services (S3, Glue, Lambda) and Databricks. Solid understanding of financial market data, particularly time-series. Knowledge of data quality frameworks and performance optimisation techniques. Degree in Computer Science, Engineering, or related field. Preferred Skills SQL and relational database design experience. Exposure to quantitative finance … trading environments. Familiarity with containerisation and orchestration (Docker, Kubernetes). What We Offer Competitive compensation and performance-based bonus. Hybrid working model: 2 days per week on-site in London. Opportunity to work on mission-critical data systems for a global hedge fund. Collaborative, high-performance culture with ...

Translating product and design requirements into scalable, high-quality solutions Collaborating closely with product managers, designers, and other engineers Tackling complex challenges around scalability, performance, and reliability Raising the bar on code quality, tooling, and engineering best practices What we're looking for 7+ years of experience … heavy UIs using React (Next.js and Chakra UI are a plus) Hands-on experience with relational (MySQL) and NoSQL databases Strong debugging, troubleshooting, and performance optimisation skills Take ownership and enjoy driving work forward Care about quality, performance, and continuous improvement Tech you'll work with Backend ...

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 ...

used by Sales and Trading Partner closely with FX Traders, Sales, and Quant/Tech teams to define requirements and deliver solutions Deliver high-performance, responsive UIs suitable for latency-sensitive trading environments Collaborate with global development teams across London and Asia Contribute proactively to product evolution and platform … within financial markets FX trading systems experience highly advantageous Experience with testing frameworks (Jest, Cypress, etc.) and CI/CD pipelines Strong focus on performance optimisation and UI responsiveness Confident working directly with front-office stakeholders Bachelor's degree in Computer Science, Engineering, or related discipline Desirable Backend ...

used by Sales and Trading Partner closely with FX Traders, Sales, and Quant/Tech teams to define requirements and deliver solutions Deliver high-performance, responsive UIs suitable for latency-sensitive trading environments Collaborate with global development teams across London and Asia Contribute proactively to product evolution and platform … within financial markets FX trading systems experience highly advantageous Experience with testing frameworks (Jest, Cypress, etc.) and CI/CD pipelines Strong focus on performance optimisation and UI responsiveness Confident working directly with front-office stakeholders Bachelor's degree in Computer Science, Engineering, or related discipline Desirable Backend ...

.NET developer with a strong SQL Server background and experience working in financial environments. You will be joining a highly skilled team focused on performance, reliability, and scalability, tackling complex issues in real-time, data-driven applications. This is purely a tech-heavy role—business knowledge is helpful … required. What You'll Be Doing: Leading initiatives on DB modernisation and performance optimisation Archiving legacy data from key tables with precision to ensure smooth migrations Redesigning and refactoring high-activity tables to improve performance and maintainability Developing frameworks and tooling for real-time monitoring of trading ...