13 of 13 Part-Time Performance Optimisation Jobs in London

needs into scalable, secure, and high performing solutions. You will also take ownership of reviewing existing systems, identifying opportunities to simplify, refactor, and improve performance and reusability. \n This is an opportunity to have real impact across our platform and help drive architectural excellence across the organisation. \n Responsibilities … innovative and cost-effective. \n Quality Assurance: Ensure software designs and implementations follow best practices, coding standards, and appropriate testing methodologies. Guarantee high performance, security, and scalability of the architecture. \n Documentation & Communication: Create clear, comprehensive, and maintainable documentation for system architectures, workflows, and technical specifications. Communicate effectively with ...

testing applications with Detox/Appium/WebdriverIO/Playwright \n\n \n Extensive experience in modern web development, including responsive design and performance optimization \n\n \n Hands-on experience with design systems, component libraries, and implementing consistent UI/UX across large-scale applications \n\n ABOUT ...

testing applications with Detox/Appium/WebdriverIO/Playwright \n Extensive experience in modern web development, including responsive design and performance optimization \n Hands-on experience with design systems, component libraries, and implementing consistent UI/UX across large-scale applications \n\n #ICBCareers #ICBEngineering \n ABOUT ...

building systems that integrate machine learning models, data pipelines, and cloud-native services. \n This role is ideal for someone passionate about clean architecture, performance optimization, and applying AI technologies to real-world business challenges. \n Requirements \n Key Responsibilities \n \n Design, develop, and maintain high-performance … Build RESTful APIs and microservices using modern Java frameworks \n Collaborate with data scientists to deploy and scale machine learning solutions \n Optimise system performance, scalability, and security \n\n \n Implement CI/CD pipelines and ensure high code quality standards \n Work with cloud platforms to deploy ...

based tools. \n Technical Excellence: Promote strong software engineering practices across backend and frontend development, including CI/CD, testing, secure by default development, performance optimisation and observability. \n Support and operate live systems, troubleshoot complex issues, perform root cause analysis and continuously improve reliability, quality and speed … JavaScript/TypeScript, with experience building and maintaining production web interfaces. \n Proficiency with HTML and CSS, and an understanding of usability, accessibility and performance considerations. \n Experience working across data, backend and UI layers, collaborating with others rather than owning every layer in isolation. \n Ability to make ...

planning, memory, and workflow orchestration \n Implement tools and frameworks for model versioning, experiment tracking, and lifecycle management \n Develop systems to monitor model performance and address data and model drift \n Recommend best practices for model integration and deployment patterns \n Design and implement effective testing strategies, including … unit, component, integration, end-to-end, performance, and champion/challenger tests, establish output validation best practices, recommendations and guardrails to reduce hallucinations. \n Ensure platform compliance with data privacy, security, and regulatory standards \n Mentor team members on platform design principles and best practices \n Guide colleagues ...

measurable business impact. \n Analyze data to inform agent capabilities, optimize retrieval, and drive data-driven decision-making; conduct A/B tests and performance evaluations. \n Mentor and guide team members on agent frameworks, LLM usage, safety, and best practices. \n\n Required Qualifications, Capabilities, and Skills … quantization and distillation. \n Familiarity with prompt optimization frameworks and building prompt pipelines and evaluation suites. \n Experience with distributed computing, data sharding, and performance optimization. \n Hands-on experience with AWS services related to AI deployment and workflow orchestration. \n\n Why Join Us? \n We offer ...

code quality, including writing and maintaining test cases with frameworks such as Jest, Cypress, and @testing-library/react, as well as conducting performance testing. \n Solid understanding of web performance optimization and diagnostics. \n Experience with Python 3 or higher. \n\n ABOUT US \n J.P. Morgan ...

features for Execute, supporting complex, high-throughput trading workflows. \n Contribute to UI architecture and design for latency- and availability-sensitive experiences, balancing performance, security, resiliency, and usability. \n Integrate UI capabilities with APIs and real-time data services, collaborating with back-end, platform, and SRE partners to deliver … Diagnose and resolve production issues using structured troubleshooting, logging, metrics, and alerting; contribute to incident learnings and preventative improvements. \n Improve front-end performance and reliability through profiling, optimization, and proactive bottleneck identification. \n Collaborate effectively across globally distributed teams, contributing to shared standards and reusable components to increase ...

design and delivery of user interface capabilities across Execute, from discovery to production support \n Set front-end technical direction, including architecture, standards, performance, and testing strategy \n Partner with product, business stakeholders, and designers to translate trading workflows into intuitive UX \n Drive quality through thorough testing, troubleshooting … performance optimization \n Build high-performance, real-time UIs with strong responsiveness and stability \n Establish and evolve scalable UI architecture, including component libraries and shared platform services \n Drive engineering excellence through code reviews, quality gates, CI/CD, observability, and operational readiness \n Ensure secure, compliant ...

design and delivery of user interface capabilities across Execute, from discovery to production support \n Set front-end technical direction, including architecture, standards, performance, and testing strategy \n Partner with product, business stakeholders, and designers to translate trading workflows into intuitive UX \n Drive quality through thorough testing, troubleshooting … performance optimization \n Build high-performance, real-time UIs with strong responsiveness and stability \n Establish and evolve scalable UI architecture, including component libraries and shared platform services \n Drive engineering excellence through code reviews, quality gates, CI/CD, observability, and operational readiness \n Ensure secure, compliant ...

fast-growing business. \n In this role, you will collaborate with our Finance Business Partnering team to support Marketing teams with budget management and performance optimisation. You will use data to build a clear story around our results, manage communications, and report to various stakeholders to ensure our growth … forecast variance comparisons to drive accuracy, clear decision making, and strategy development. \n \n Partner with Marketing leads to help them understand their performance and cost base, acting as a trusted advisor to assist them with critical decision making. \n\n This role will give you the opportunity ...

impact millions of daily active users. You will collaborate closely with Product Managers, UI/UX Designers, and Backend Teams to build intuitive, high-performance features. \n Key Responsibilities: \n \n \n Feature Development: Lead the design and implementation of complex, scalable, and maintainable features using modern Android technologies. … architecture (MVVM/Clean Architecture). Maintain exceptionally high code quality through rigorous code reviews, automated testing, and CI/CD pipelines. \n \n Performance Optimization: Continuously monitor, profile, and optimize app performance, ensuring minimal battery usage, fast startup times, and smooth UI rendering. \n \n Technical Leadership ...