25 of 25 Performance Optimisation Jobs in the City of 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 ...

feature extraction, transformation, and model training. Deployment & Monitoring: Implement models into production environments using MLOps best practices (CI/CD, containerization, monitoring). Performance Optimization: Continuously improve model accuracy, latency, and scalability. Collaboration: Work cross-functionally with product managers and engineers to align ML solutions with business objectives. Documentation ...

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 ...

Responsibilities Strategy & Roadmap: Define and own the roadmap for Card Payments and Failed Payment Recovery, ensuring alignment with commercial priorities and regulatory compliance. Performance Optimisation: Proactively dive into payment performance data to identify friction points, uncover issuer behaviours, and design experiments to maximise authorisation rates. Intelligent Solutions ...

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 ...

users. In this role, you'll provide authoritative guidance and best practices across critical areas including marketing automation architecture, customer data platforms, omnichannel personalization, performance optimization, and governance frameworks. This is a project leadership position where you'll shape transformative Salesforce solutions for retail clients, ensuring that technical decisions ...

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 ...

Gold layer curation. Expertise in Power BI, including: Intermediate DAX Star schema modelling and semantic model design Report UX/UI best practices Performance optimisation Hands-on experience with Microsoft Fabric features such as Lakehouse, Data Warehouse, dataflows, and semantic models. SQL skills for data exploration, transformation ...

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 ...

models in Azure. • Data Pipelining: Build and optimize scalable data pipelines for ingesting, transforming, and preparing large datasets for AI model training and inference. • Performance Optimization: Optimize AI models and their serving infrastructure for performance, cost-efficiency, and scalability. • Collaboration: Work collaboratively with data scientists to operationalize models ...

make sure you’re a good fit for the role: Key Responsibilities Lead the architecture, design, and development of scalable, high-performance web applications using React and TypeScript . Define and execute the front-end technical strategy , ensuring scalability, performance, and alignment with product and AI goals. Collaborate … applications. Mentor other engineers, promoting excellence in coding practices, architecture decisions, and technical problem-solving. Establish and enforce standards for code quality, accessibility, performance optimization, and testing . Partner with backend and DevOps teams to optimize CI/CD pipelines and deployment processes. Continuously identify opportunities ...

software engineers to ensure seamless data integration and availability for predictive modeling and business intelligence. Optimize data storage and processing in Azure environments for performance, reliability, and cost-efficiency. Implement best practices for data modeling, governance, and security across all platforms. Troubleshoot and enhance existing pipelines to improve scalability … love to hear from you. Strong technical foundation: Degree in a STEM field (or equivalent experience) with hands-on experience in production environments, emphasizing performance optimization and code quality. Python expertise: Advanced proficiency in Python for data engineering, data wrangling and pipeline development. Cloud Platforms : Hands-on experience working ...

development, testing, and maintenance of low-latency Java applications. - Collaborate with cross-functional teams to gather requirements and design system architecture. - Optimize application performance and troubleshoot latency issues. - Mentor junior developers and ensure adherence to best coding practices. - Participate in code reviews and provide constructive feedback. - Stay updated with … Science, Engineering, or a related field. - Proven experience in Java development, with a focus on low-latency systems. - Strong understanding of multithreading, concurrency, and performance optimization. - Experience with frameworks and libraries such as Spring, Hibernate, and Netty. - Familiarity with distributed systems and network protocols. - Excellent problem-solving skills ...

Lakehouse architecture, big data engineering, cloud ecosystems, and enterprise data strategy. The ideal candidate will partner with business and technology leaders to deliver high-performance data systems that support analytics, AI/ML, and real-time insights. Key Responsibilities Architecture & Solution Design Architect end-to-end Databricks Lakehouse solutions … including data ingestion, ETL/ELT pipelines, Delta Lake, data warehousing, and data governance frameworks. Define and enforce best practices, security standards, and performance optimization across Databricks workloads. Design scalable big data architectures leveraging Spark, Delta Live Tables, Unity Catalog , and MLflow. Lead cloud architecture design on Azure/ ...

certifications, including AWS, Azure, and GCP, along with extensive in-house courses and a mentoring program. Key Responsibilities Design and implement scalable, high-performance architectures for diverse client projects, ensuring alignment with business objectives and technical requirements. Collaborate with clients to gather and analyse requirements, translating them into robust … accessible. Provide technical leadership and mentorship to development teams, guiding them through best practices in software engineering and architecture. Conduct regular code reviews and performance optimisations to ensure high-quality, efficient solutions. Stay up-to-date with emerging technologies and industry trends, evaluating their potential impact on client projects ...

Power, Gas, and Equity products. You will take ownership of implementing complex pricing models, designing calibration routines, integrating market data, and ensuring robust model performance in live trading environments. This position is well suited for someone who blends strong quantitative expertise with production-grade engineering skills and enjoys solving … highly desirable. This role offers the opportunity to influence mission-critical pricing infrastructure used globally, while contributing to innovation in modelling, calibration, and performance optimisation. If you're interested in exploring this opportunity, please get in touch or apply directly via the job advert. ...

strategic customizations. Technical Advisory & Governance: Act as a subject matter expert and technical advisor to clients and internal teams, providing guidance on platform capabilities, performance optimization, security, and scalability. Establish technical governance to ensure solution integrity. Requirement Analysis & Solution Design: Collaborate with business stakeholders to gather and analyze complex … REST, SOAP, JDBC, MID Server). Technical Oversight & Quality Assurance: Provide technical oversight to development teams, ensuring adherence to architectural patterns, coding standards, and performance best practices. Participate in code reviews and ensure solution quality. Prototyping & Demonstrations: Lead the creation of technical prototypes and conduct demonstrations of proposed ServiceNow ...

strategic customizations. Technical Advisory & Governance: Act as a subject matter expert and technical advisor to clients and internal teams, providing guidance on platform capabilities, performance optimization, security, and scalability. Establish technical governance to ensure solution integrity. Requirement Analysis & Solution Design: Collaborate with business stakeholders to gather and analyze complex … REST, SOAP, JDBC, MID Server). Technical Oversight & Quality Assurance: Provide technical oversight to development teams, ensuring adherence to architectural patterns, coding standards, and performance best practices. Participate in code reviews and ensure solution quality. Prototyping & Demonstrations: Lead the creation of technical prototypes and conduct demonstrations of proposed ServiceNow ...

processing patterns (CDC, watermarking, upserts) AWS Data Services Amazon S3: data lake architectures, partitioning strategies, lifecycle policies DynamoDB: data modeling, secondary indexes, streams, and performance optimization Amazon Redshift: foundational querying, integrations, and performance considerations AWS Lambda for scalable data processing and orchestration Amazon EventBridge for event-driven … decoupled data pipelines Vector Databases & Embeddings Strong understanding of vector database concepts, indexing strategies, and performance trade-offs Design and implementation of embedding generation pipelines Optimization techniques for semantic search and retrieval accuracy Effective chunking strategies for document ingestion and processing Experience with CockroachDB deployment and management is beneficial ...

rigorous scientific research, and deep expertise across trading, technology, and operations. As a tech-driven organization, we develop our own advanced systems, including high-performance trading platforms and large-scale data analysis infrastructure. With a global presence, we emphasize collaboration across investment, technology, and operations teams, ensuring seamless integration … across our offices worldwide. Within this Reliability team, youll play a vital role in maintaining the performance, stability, and availability of our software systems. You'll be working closely with mission-critical applications, developing reliability features, improving observability, and building automation tools to streamline operations. About the Role - 5+ ...

C++ Software Developer, Risk Technology £160,000 to £170,000 Join a high-performance engineering group responsible for the systems that sit at the heart of a global trading operation. This team owns the core risk platform, handling everything from trade intake and real time position tracking … speed. You will work in an engineering culture that values clarity, simplicity and strong design. Expect to collaborate with colleagues across regions, refine performance at a system level and contribute to a platform that is constantly evolving as trading strategies and data volumes grow. What you bring Strong C++ ...

Sharepoint Engineer Act as the SharePoint SME, providing expert guidance across on-premise and Azure cloud environments. Lead platform upgrades, deployments, and performance optimization initiatives. Collaborate with IT teams, vendors, and business stakeholders to deliver solutions. Integrate SharePoint with SSO, MFA, and Azure services. Troubleshoot and resolve complex SharePoint … improvements to enhance platform resilience and performance. Key Requirements Proven experience as a SharePoint Engineer with on-premise and cloud (Azure) environments. Strong troubleshooting, performance tuning, and problem-solving skills. Experience with SSO, MFA, and Azure integrations desirable. Excellent stakeholder management and communication skills. Proactive, analytical, and able ...

there team intentionally small, bringing together only the most exceptional talent in crypto. They are looking for a backend engineer experienced in building high-performance, low-latency microservices in TypeScript. Responsibilities Backend Development: Build and maintain scalable TypeScript services for trading, analytics, and integrations. Cross-Team Collaboration: Work with … designers, product, and users to align backend solutions with platform needs. Performance Optimization: Deliver fast, reliable systems and efficient queries for high user loads. Code Quality: Write clean, well-structured, well-documented code. Problem Solving: Debug and resolve complex issues to keep the platform running smoothly. Requirements 5+ years ...

Warehouse patterns, Gold Layer modelling, defining/implementing ingestion + transformation pipelines (Dataflows Gen2, Notebooks), establishing modelling standards for Gold Layer + semantic models, performance optimization, lineage/observability, governance, RBAC, security, data retention. Team Leading/Delivery: setting standards, directing/mentoring the team, reviewing designs, unblocking delivery. … orchestration, testing, test data preparation, reporting validation, release practices. Operational Readiness: ensuring documentation/run books + non-functional requirements are met (security, resilience, performance). Short-Term Objective: baseline Gold Layer model components to enable consistent semantic models and reporting. ...

Warehouse patterns, Gold Layer modelling, defining/implementing ingestion + transformation pipelines (Dataflows Gen2, Notebooks), establishing modelling standards for Gold Layer + semantic models, performance optimization, lineage/observability, governance, RBAC, security, data retention. Team Leading/Delivery: setting standards, directing/mentoring the team, reviewing designs, unblocking delivery. … orchestration, testing, test data preparation, reporting validation, release practices. Operational Readiness: ensuring documentation/run books + non-functional requirements are met (security, resilience, performance). Short-Term Objective: baseline Gold Layer model components to enable consistent semantic models and reporting. SC Clearance preferred, but the client will also ...