1 to 25 of 34 Performance Optimisation Jobs in the City of London

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 ...

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 ...

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 ...

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 ...

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 ...

experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

experience in logging systems (e.g. ELK stack ) Proven experience in monitoring systems (e.g. Prometheus ) Proven experience in tracing systems (e.g. OpenTelemetry , Jaeger) Experience in performance optimization and resource management Relevant certifications (AWS, Google) Understanding of Agile methodologies Ability to diagnose and resolve service- affecting issues in a Broadcast/ ...

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 ...

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 ...

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 ...

Strong proficiency across Python/TypeScript/Golang (or equivalent polyglot stacks) with proven ownership of production-grade systems. Expertise in real-time systems, performance optimisation, fault tolerance and scalable architectures under uncertainty. Experience with financial protocols, market data feeds, order matching or compute infrastructure is a strong ...

Developer before moving into Product Ownership Technical proficiency:Familiarity with Azure services (e.g., Data Lake, Synapse, Fabric) and Databricks for data engineering, analytics, performance optimisation, and governance. Experience with implementing and optimising scalable cloud infrastructure is highly valued. Backlog management:Demonstrated expertise in maintaining and prioritizing product backlogs ...

driven architecture , with Kafka at the core Collaborate with product, frontend and platform teams to deliver scalable e-commerce solutions Contribute to system design, performance optimisation and best engineering practices Take ownership of services from development through to production What We’re Looking For Strong commercial experience with ...

power rich user experiences. Rapidly shaping UI concepts through prototypes and iterative design. Ensuring reliability through comprehensive unit testing and a strong focus on performance optimisation. Enhancing, maintaining and supporting existing features with robust monitoring and alerting. Collaborating with cross-functional teams in a matrix environment and guiding development ...

teams through complex product development challenges. Collaborate with stakeholders to gather and prioritize requirements based on business impact and feasibility. Oversee continuous testing and performance optimization to maintain high product standards. Monitor emerging technology trends and integrate innovative approaches into product development. Influence strategic decisions, manage risks, and ensure ...

accuracy, security, and compliance with organisational policies and privacy standards. Document data models, definitions, and analytics logic to support transparency and reuse. Continuously improve performance, reliability, and scalability of analytics solutions. Skills & Experience Strong experience designing and delivering analytics solutions end-to-end, including both strategy and implementation. Hands … expertise with Power BI (data modelling, DAX, visual design, performance optimisation). Experience working with Microsoft 365 data, ideally including Microsoft Graph and Viva Insights. Ability to define KPIs and analytics frameworks in ambiguous or evolving environments. Proven ability to engage stakeholders, influence decisions, and drive alignment. Strong ...

Experience Cloud. You will be highly skilled in Apex, Visualforce, Lightning Components, and Lightning Web Components. A strong understanding of Salesforce governor limits and performance optimisation principles for efficient and scalable applications for a large active user base. Expertise in large-scale integration using SOAP, REST, Streaming (including ...

working with the Sales team to ensure client satisfaction; Responsible for campaign sales push and delivery: RFP coordination, client management, briefing stakeholders, ad operations & performance optimisation & reporting in relationship with the traffic and trading team; Creation and delivery of weekly campaign reports; Monitoring campaign delivery with traders; Project ...