51 to 75 of 109 Performance Optimisation Jobs in London

latency trading connectivity (FIX + modern APIs) This is revenue-impacting infrastructure , not internal tooling. What You’ll Be Doing Designing and building high-performance Java services powering trading APIs Developing and optimising FIX connectivity for institutional clients Owning end-to-end delivery — from design through to production Improving … They’re Looking For Strong Java engineering fundamentals in real-time or distributed systems Experience building external-facing APIs or connectivity layers Understanding of performance optimisation and system design under load Exposure to trading systems, fintech, or low-latency environments is highly relevant Engineers comfortable operating in high ...

looking to work on problems that genuinely test the limits of performance, scale, and engineering craft? We are building a small, elite team of systems engineers to design and evolve the core infrastructure that powers a highly sophisticated trading platform. This is not application level development. This is deep … work on performance critical systems where nanoseconds matter, correctness is non negotiable, and your decisions directly impact real world outcomes. You will be working on the foundations of the trading stack, including market data, execution, simulation, and internal infrastructure. The problems are hard, the standards are high ...

providing Python-based solutions that directly impact the profitability of the business. This is an exciting opportunity to work in a fast-paced, high-performance environment where you can push the boundaries of technology in financial markets. Key Responsibilities: Design, develop, and maintain highly efficient Python-based applications … commodities trading, risk management, and real-time data analysis. Build scalable, high-performance data pipelines to process large datasets from multiple sources, including real-time market data and fundamental data. Implement robust APIs and microservices to integrate trading systems, analytics platforms, and external data providers. Optimize performance ...

handling sensitive data Desirable Skills: Experience with modern Android architecture (e.g., MVVM, Clean Architecture) Familiarity with CI/CD pipelines and automated testing Performance optimisation and app scalability experience Experience working on high-traffic or mission-critical applications What You'll Bring: A strong focus on delivery ...

React Experience with relational databases (e.g. MySQL) and ORM tools Familiarity with Docker and cloud platforms (e.g. AWS) Knowledge of modern web architecture and performance optimisation What’s on Offer Competitive salary plus equity package Hybrid working with flexible hours 25 days holiday plus bank holidays Daily meals ...

OneStream in particular. Strong understanding of Service Management frameworks such as ITIL. Solid background in: Operating system management (Windows/Linux) Application troubleshooting and performance optimisation Log analysis, system monitoring, and incident management Ability to collaborate effectively with technical and non-technical stakeholders. Experience working in structured delivery ...

ALERT 🚨 – Lead Java Contractor 💻 Java/Distributed Systems/Event-Driven Architecture – Trading & Portfolio Tech 🕑 10+ years building high-performance, data-intensive trading systems 📍London (front-office, high-impact engineering environment) 💰 Highly competitive day rate Highlights: 🔷 Lead the design and build of scalable trading & portfolio management systems … desk 🔷 Work directly with portfolio managers and traders to deliver real-time, business-critical technology 🔷 Architect event-driven, distributed systems with strong focus on performance, resilience, and observability 🔷 Drive technical direction across microservices, data streaming, and system design in a fast-moving environment The Role: Join a high-calibre ...

Strategy* Own end-to-end go-to-market strategy for AI and Data & Analytics, from initial market framing through launch execution to post-launch performance optimisation* Develop and execute comprehensive GTM plans that define target segments, buyer journeys, channel strategy, and success metrics* Lead cross-functional launch coordination … across product management, sales, field marketing, and communications* Monitor and report on product launch performance, making data-driven adjustments to maximise commercial outcomes2. Product Positioning & Value-Based Messaging* Develop and own the positioning and messaging framework for Wiley’s AI and Data & Analytics, product portfolio, ensuring differentiated positioning against ...

London based. ASAP start - 3 month contract. Role The Frontend Engineer will design, develop, and maintain user-facing features across global platform solutions, ensuring performance, scalability, and responsiveness. Build and implement multi-language UI components and localisation frameworks to support international products and users. Support currency display, regional … deliver high-quality end-to-end solutions. Contribute to the improvement of frontend architecture, design systems, and reusable component libraries. Troubleshoot and resolve frontend performance, rendering, and integration issues efficiently. * Stay up to date with modern frontend technologies and best practices, applying continuous improvement to development processes. Profile ...

application platforms transformation and also long-term managed capabilities. It helps clients connect technology decisions to business outcomes such as resilience, agility, cost optimisation and operational efficiency. This role is a blend of technology leadership, executive advisory and pre-sales enablement, complementing sales, delivery and architecture teams by bringing … architectures and platform engineering DevSecOps, CI/CD and developer productivity at scale Enterprise-scale application and digital managed services, including cost, reliability and performance optimisation Key Responsibilities Executive Advisory and Client Engagement Engage confidently with senior client stakeholders across enterprise accounts. Lead executive-level discussions on cloud ...

within Audience Builder and Contact Builder Develop and maintain Content Builder assets including emails, landing pages and dynamic content blocks Implement tracking, reporting and performance analytics using Marketing Cloud Intelligence (Datorama) and built-in analytics tools; experience with Marketing Analytics platforms is highly desirable Work with Marketing Cloud Advanced … Salesforce CRM data sync management Understanding of email compliance, GDPR, suppression and consent management requirements Experience with Marketing Cloud reporting, campaign analytics and performance optimisation Desirable Experience with Marketing Cloud Advanced (Personalization/Interaction Studio); real-time personalisation, web and email recommendations, Einstein features Familiarity with Marketing Cloud ...

within Audience Builder and Contact Builder Develop and maintain Content Builder assets including emails, landing pages and dynamic content blocks Implement tracking, reporting and performance analytics using Marketing Cloud Intelligence (Datorama) and built-in analytics tools; experience with Marketing Analytics platforms is highly desirable Work with Marketing Cloud Advanced … Salesforce CRM data sync management Understanding of email compliance, GDPR, suppression and consent management requirements Experience with Marketing Cloud reporting, campaign analytics and performance optimisation Desirable Experience with Marketing Cloud Advanced (Personalization/Interaction Studio); real-time personalisation, web and email recommendations, Einstein features Familiarity with Marketing Cloud ...

people genuinely love what they work on Friendly, tight-knit engineering culture Flat structure with clear and achievable progression Exposure to cutting-edge tooling, performance optimisation, and large-scale systems ...

with core data engineering tools and technologies (e.g. ETL/ELT pipelines, data warehouses, orchestration tools) Strong understanding of data modelling, data quality, and performance optimisation Desirable Experience Experience with Palantir (Foundry, Gotham) Willingness and aptitude to learn Palantir technologies on the job Background working in defence, government ...

with engineering teams Understanding of programming concepts, including data structures, algorithms, and software design patterns Knowledge of technical architecture, including system design, scalability, and performance optimisation Proven ability to work effectively with cross-functional teams, including engineering, commercial teams, and senior management Experience leading geographically distributed teams Experience ...

Docker), and JVM tuning for containerized workloads. Observability & Operations: Application instrumentation (metrics, distributed tracing, structured logging) and production support in high‐availability environments. Data & Performance: Data modeling, SQL/NoSQL databases, caching strategies, and performance optimization in latency‐sensitive systems. Security: Enterprise security patterns; authentication protocols, mutual ...

Docker), and JVM tuning for containerized workloads. Observability & Operations: Application instrumentation (metrics, distributed tracing, structured logging) and production support in high‐availability environments. Data & Performance: Data modeling, SQL/NoSQL databases, caching strategies, and performance optimization in latency‐sensitive systems. Security: Enterprise security patterns; authentication protocols, mutual ...

Rust Developer – Contract Opportunity Role Overview A leading technology-driven trading firm is seeking an experienced Rust Developer to join its high-performance engineering team. In this role, you will play a key part in designing, developing, and maintaining low-latency, mission-critical trading systems. This opportunity offers … fast-paced and intellectually stimulating environment where your work will have a direct impact on business performance. Key Responsibilities Develop and maintain high-performance trading applications using Rust Write clean, scalable, and well-tested code Collaborate closely with engineers, quantitative analysts, and operations teams to deliver reliable solutions Contribute ...

Collaborating closely with Product, Design, Backend, QA, and DevOps teams to deliver new features and enhancements Troubleshooting and resolving issues to ensure optimal app performance, security, and quality Participating in code reviews, architecture discussions, and staying updated with the latest iOS technologies and Apple guidelines Managing your workload independently … Proven experience in building and maintaining iOS applications with Swift and/or Objective-C Strong understanding of iOS development best practices, security, and performance optimisation Excellent communication skills and the ability to work collaboratively across teams Ability to manage tasks independently and contribute to technical discussions Familiarity ...

Strong understanding of secure coding practices and data protection considerations Desirable: Experience with CI/CD pipelines and automated testing for iOS Knowledge of performance optimisation and scalability in mobile apps Previous experience delivering services to large user bases What You'll Bring: A pragmatic, delivery-focused mindset ...

high-quality, compliant user interfaces Desirable skills: * Knowledge of GDS design principles and standards * Experience with Fiori Elements and Fiori Launchpad configuration * Familiarity with performance optimisation for SAP Fiori apps * Previous involvement in digital transformation projects within the public sector This is an exciting opportunity to contribute ...

build intuitive user interfaces and optimise user experience, in line with Apple’s HIG and design patterns Experience with development best‐practices for performance optimisation, security, accessibility and app distribution Ability to build relationships with internal and external stakeholders to communicate Apple’s platform message Creative thinker ...

media partners (Google, Adobe, etc.). Demonstrated track record of building joint marketing programs that drive pipeline/demand, with strong analytical and performance‐optimisation skills. Experience conceptualising and executing content and storytelling around technical/enterprise offerings and professional services, for both marketing and executive audiences. Strong ...

about working in games and contributing to our mission. WHAT YOU’LL DO Implement new gameplay features in Unity: UI, logic, data flow, and performance optimisations. Help maintain existing features, modernising code, and debugging inherited legacy systems. Build and iterate new gameplay prototypes with Game Design, Art and Product ...

application and SDK • Collaborate closely with product and design from idea through to release • Own features end-to-end, including architecture decisions • Contribute to performance optimisation and developer experience • Work in a high-agency, experimental environment where engineering quality matters This is not a delivery-only environment. Engineers … product and technical direction. They’re looking for software engineers who: • Have strong hands-on React and TypeScript experience • Care deeply about frontend craft, performance and detail • Are comfortable working in ambiguity and high-ownership environments • Have shipped meaningful features in startup or product-led teams • Can contribute ...