26 to 50 of 124 Performance Optimisation Jobs in London

services supporting a multi-tenant SaaS platform Work with asynchronous and event-driven processing (e.g. messaging, background services) Troubleshoot, refactor, and optimise code for performance, security and maintainability Participate in design reviews and contribute to technical architecture discussions Develop new features and maintain functionality on an existing enterprise software … RESTful services Proven experience working on SaaS platforms Strong experience using Microsoft Azure in production environments Good understanding of backend architecture, performance optimisation and security Experience working with system integrations and external APIs Nice to Have Familiarity with Microsoft Dynamics CRM or similar systems Exposure to Azure services ...

workloads. This role is hands-on across Microsoft Fabric (including OneLake) and Snowflake, with a strong focus on ETL/ELT engineering, data modelling, performance optimisation, and data governance. Client Details The client is a well-established organisation within the financial services sector, operating in a professional, fast … Snowflake Build and operate medallion architecture (bronze/silver/gold) layers Define and maintain data models, schemas, and semantic layers Optimise pipeline performance, query efficiency, and cloud cost Troubleshoot and resolve data quality, reliability, and performance issues Implement role-based access, secure data handling, and privacy-aware ...

translate them into technical solutions leveraging Power Platform and associated technologies. Design end-to-end solutions on Power Platform, considering scalability, security, and performance aspects. Experience in architecting Cloud-based solutions. Technical Leadership: Provide technical leadership and guidance to development teams, including application of best practices across the full … Platform and external systems. Governance and Compliance: Define and implement governance policies for Power Platform usage. Ensure compliance with organisational and industry-specific regulations. Performance Optimisation: Monitor and optimise the performance of Power Platform solutions. Identify and resolve performance bottlenecks and scalability issues. Documentation: Create ...

authority within the GenAI domain Collaborating cross-functionally to define requirements and solution approaches Driving best practice in code quality, testing, secure development and performance optimisation Mentoring and developing engineers, fostering a high-performance culture Managing risk, governance and controls within a regulated environment Contributing to broader … working with Large Language Models (LLMs) Experience with AWS services such as Bedrock, Lambda, S3, Lex and CloudWatch LLM evaluation and prompt engineering/optimisation Experience leading or mentoring engineers Strong communication skills with the ability to influence technical and non-technical stakeholders What ...

Full Stack Developer with strong experience in Java, Spring Boot, Kafka, and API Management platforms (Apigee) to build and support scalable, secure, and high-performance applications in the payments/banking domain . The ideal candidate will have hands-on experience with PayEdge or payment processing platforms , RESTful APIs … RESTful APIs and integrate with internal and external systems Build event-driven architectures using Apache Kafka (producers, consumers, streams) Ensure high availability, scalability, and performance of services Implement security using OAuth2, JWT, API keys , and role-based access API Management & Integration Design, publish, and manage APIs using API Gateway ...

CodePipeline.? Develop and maintain Software-in-the-Loop and Hardware-in-the-Loop test environments, including automated deployment across multiple platforms.? Integrate performance testing techniques across multiple types of simulation (e.g. Gazebo, rosbag-based workflows).? Collaborate with hardware engineers, systems architects and AI/ML specialists to integrate … embedded software and test frameworks into the overall system.? Participate in code reviews, performance optimisation and comprehensive testing (unit, integration and system level) to maintain high quality standards.? Develop, implement and execute test strategies and verification activities for safety-critical software, including static and dynamic code analysis using ...

backend architecture and ensure best practices are followed Work closely with cross-functional teams including front-end, QA, and product Contribute to system design, performance optimisation, and code quality Participate in code reviews and promote clean, maintainable coding standards Troubleshoot and resolve complex technical issues Key Requirements Strong … principles and architecture Strong experience working with SQL and relational databases Proven experience in a Lead or Senior Developer position Experience building scalable, high-performance applications Strong understanding of software design patterns and best practices Excellent problem-solving and communication skills Desirable Skills Experience with modern .NET (Core/ ...

into technology direction, innovation strategy and creative execution. You will operate as a senior technical voice within the business, translating conceptual ideas into high-performance digital experiences while influencing architectural and technology decisions across a range of complex projects. NB: This role is remote-first, with collaborative in-person … feasibility, innovation opportunities and implementation approaches Senior Front-End Engineering Own the front-end architecture and delivery across complex digital builds Develop sophisticated, high-performance interfaces using React, TypeScript, and modern front-end tooling Contribute to the evolution of component libraries and internal design systems Deliver best-in-class ...

outcomes and documenting best practices and repeatable patterns. Manage cloud infrastructure and platform operations, including AWS, Kubernetes, CI/CD pipelines, Terraform, monitoring, performance optimisation, and cost control. Design, develop, and maintain backend services in Python, and contribute to React, TypeScript, and PHP codebases when required. Lead evaluation … definition and tracking of meaningful product and model metrics. Solid understanding of ML fundamentals and experimentation, including metric design, error analysis, model selection, and performance tuning. A strong security and governance mindset, with the ability to communicate clearly with both technical and non‐technical audiences, and a high level ...

scaling mission-critical distributed systems. You will design and build fault-tolerant, event-driven Java services supporting electronic trading platforms. The position involves performance optimisation, system stability ownership, and close collaboration with global Architecture, DevOps, and Product teams. Essential Skills: Strong experience building low latency Java systems within ...

experience with PyTorch Experience with Hugging Face transformers or similar frameworks Solid experience deploying ML solutions on AWS Understanding of MLOps, model deployment and performance optimisation Ability to work in a consultancy environment with multiple clients Desirable: Experience with LLMs, RAG pipelines or generative AI applications Knowledge ...

domain logic, and business processes Refactor and improve legacy PL/SQL and database-driven business logic Support ongoing system upgrades, reliability improvements, and performance optimisation Contribute to cloud-oriented development and infrastructure improvements Work within modern engineering practices including TDD, CI/CD, and Agile delivery Participate ...

Development) experience. API build experience is essential, especially with 3rd party API's Comfortable working with relational and NoSQL databases, including complex queries and performance optimization. Solid understanding of web design patterns, including SOLID principles. Experience working in an agile, collaborative environment. Familiarity with automated testing and CI/ ...

YOUR SKILLS AND EXPERIENCE: The ideal candidate will have the following skills and experience: -Strong experience in Power BI semantic models (DAX, modelling and performance optimisation) -Advanced SQL including complex joins, transformations and optimisation -Some exposure to Python -Strong skills with Excel for modelling and analytics -Strong ...

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 ...

machine learning models using Python 📊 Work with large, complex datasets to support AI-driven products and insights 🧠 Assist with feature engineering, model experimentation, and performance optimisation ☁️ Contribute to data and ML pipelines in cloud-based environments 🗄 Work with structured and semi-structured data using SQL 🚀 Support the deployment ...

Contribute meaningfully to product and architecture discussions; be heard in debate and align to unified decisions. Own operability: CI/CD, monitoring/alerting, performance optimisation, safe rollbacks. Build and integrate AI features (LLM/agent workflows, RAG/vector DB integration, eval hooks, cost/safety guardrails ...

optimize ETL/ELT pipelines using Apache Spark and Databricks Implement Delta Lake and medallion architecture (Bronze, Silver, Gold) Ensure data governance, security, and performance optimization Integrate Databricks with cloud platforms and enterprise data sources Collaborate with data engineers, analysts, and stakeholders to deliver scalable data solutions Required Skills ...

side language). Experience with relational databases. Working knowledge of cloud platforms, preferably Google Cloud Platform. Strong commitment to code quality, efficient architecture, and performance optimisation. Bonus Points Advanced knowledge of JVM-based languages, particularly Kotlin. Experience with Kubernetes and Terraform. Familiarity with advanced Postgres features such as GIST ...

role is about engineering, not research. You will architect and run the infrastructure that enables AI to perform securely, reliably and at scale ensuring performance, cost control and operational maturity as adoption grows. You'll work closely with AI engineers, security teams, and product stakeholders to transform experimental models … Doing Design and optimise scalable RAG pipelines and vector search systems Orchestrate multi-model AI services with a focus on latency, resilience and performance Productionise GenAI workflows and ensure they operate reliably under real usage Build and run AI services across AWS and Databricks Develop ingestion, embedding and retrieval ...

generics, discriminated unions, conditional types, and type-safe API boundary design Vite and modern build tooling; tree-shaking, chunk strategy, module federation, and build performance optimisation in CI State management at scale: Zustand, TanStack Query, or equivalent; separation of server, client, and ephemeral UI state High-frequency WebSocket … token architecture, component API design, versioning strategy, and cross-team adoption at scale Testing discipline: unit, integration, E2E (Playwright/Cypress), visual regression, and performance budget enforcement in CI GraphQL or REST API co-design with backend teams; schema-first development and automated type generation Track record of measurably ...

generics, discriminated unions, conditional types, and type-safe API boundary design - Vite and modern build tooling; tree-shaking, chunk strategy, module federation, and build performance optimisation in CI - State management at scale: Zustand, TanStack Query, or equivalent; separation of server, client, and ephemeral UI state - High-frequency WebSocket … token architecture, component API design, versioning strategy, and cross-team adoption at scale - Testing discipline: unit, integration, E2E (Playwright/Cypress), visual regression, and performance budget enforcement in CI - GraphQL or REST API co-design with backend teams; schema-first development and automated type generation - Track record of measurably ...

teams to ensure high availability and reliability Contribute to ongoing platform stability improvements Additional Responsibilities Support integration with upstream/downstream systems Assist with performance testing (including latency improvements where required) Contribute reusable components, utilities, and best practices Provide documentation and handover to operations teams Required Skills & Experience Strong … Experience with Amazon Kinesis or other streaming platforms (e.g. Kafka) Exposure to monitoring and alerting tools Experience working in complex, integrated environments Awareness of performance optimisation (e.g. latency improvements) Working Pattern 2 days per week onsite in London Flexible engagement with potential to scale depending on project needs ...

teams to ensure high availability and reliability Contribute to ongoing platform stability improvements Additional Responsibilities Support integration with upstream/downstream systems Assist with performance testing (including latency improvements where required) Contribute reusable components, utilities, and best practices Provide documentation and handover to operations teams Required Skills & Experience Strong … Experience with Amazon Kinesis or other streaming platforms (e.g. Kafka) Exposure to monitoring and alerting tools Experience working in complex, integrated environments Awareness of performance optimisation (e.g. latency improvements) Working Pattern 2 days per week onsite in London Flexible engagement with potential to scale depending on project needs ...

Customer Insights & Reporting Specialist to build the foundations of our customer journey reporting across Safetykleen - helping us measure and improve customer health, satisfaction, service performance, and retention. This is a hands-on, technical role where you’ll use Power BI and SQL to design scalable reporting solutions and data … models, working closely with stakeholders across the business. You’ll sit in a central team and shape how markets understand performance - with a clear line of sight from insight → action → impact. If you’re excited by customer data, end-to-end journey visibility, and building modern analytics ...