26 to 50 of 269 Performance Optimisation Jobs in the UK

APIs, integrations, and backend functionality across a variety of projects Write clean, maintainable, and well-tested code Troubleshoot and resolve technical issues efficiently Support performance optimisation, security, and system reliability Delivery & Collaboration Work closely with engineers, delivery teams, product owners, and stakeholders Contribute to breaking down work into ...

with technical and business teams to support AI-related initiatives and roadmap delivery. Ensure best practices are followed for data quality, governance, security, and performance optimisation. Manage Power BI administration activities including access management, role-based security, subscriptions, and gateway configuration. Support migration of reporting and data workloads from ...

that drive real business value. Key Responsibilities Design, build, and deploy LLM-powered applications and GenAI solutions Develop and optimise prompt engineering strategies for performance and accuracy Implement RAG (Retrieval-Augmented Generation) pipelines using structured and unstructured data Fine-tune and customise foundation models and LLMs where required. Integrate … vector search Experience working with LLM APIs and frameworks (e.g., OpenAI, Azure OpenAI, Anthropic, Hugging Face) Strong understanding of prompt engineering techniques and optimisation strategies Experience working with vector databases (e.g., Pinecone, Weaviate, FAISS, Chroma) Practical experience with model evaluation, tuning, and performance optimisation Experience integrating ...

Generative AI tooling Owning the implementation of ML pipelines, APIs and data integration workflows Enforcing MLOps best practices, coding standards, version control and performance optimisation Collaborating cross-functionally with data scientists, product managers, platform engineers, QA and audit professionals Mentoring junior engineers and contributing to internal capability-building ...

studio’s growing web offering. You’ll work closely with our director, creatives, and digital team to deliver impactful WordPress websites that balance creativity, performance, and long-term client growth. This role is ideal for someone who’s confident taking website concepts from Figma through to polished launch-ready … builds, whilst supporting the ongoing evolution of websites through SEO, performance optimisation, and technical improvements. Alongside development, you’ll contribute to client relationships, digital problem solving, website management, and the wider growth of the studio’s digital capabilities. We’re looking for someone proactive, collaborative, and commercially aware ...

hundreds of millions of data points annually. They are investing heavily in modernising their data platform and analytics capabilities , with a strong focus on performance, scalability, and self-serve analytics. The role You'll take full ownership of the Databricks Lakehouse and BI architecture, leading the migration away from … modular, scalable pipelines Build and optimise data transformation frameworks using Spark/Python/SQL pipelines Act as the go-to expert for query performance optimisation (Spark execution plans, data skew, joins) Design and implement dimensional data models (star/snowflake schemas) Architect the semantic layer ...

RESTful and SOAP APIs with third-party systems Design and optimise SQL and NoSQL databases Support full SDLC including testing, deployment, and maintenance Monitor performance, troubleshoot issues, and drive continuous improvements Required Skills & Experience 3-5 years' experience in software or application development Strong proficiency in C#, ASP.NET/… ASP.NET Core Experience with modern Front End frameworks (Angular, React, or Vue.js) Solid understanding of REST APIs, microservices, and performance optimisation Experience with SQL Server and exposure to NoSQL databases Hands-on experience with AWS and/or Azure Familiarity with CI/CD pipelines and Infrastructure ...

improvement and collaborate with engineering teams to embed reliability into service design. You will define and evolve reliability standards, contribute to capacity planning and performance optimisation, mentor fellow engineers and help shape the tools, platforms and practices that support reliable service delivery at scale. Location/ ...

initiatives. AI Initiatives: Collaborate with wider teams on AI-related initiatives and roadmap delivery. Data Governance: Apply best practices around data quality, governance and performance optimisation. Stakeholder Collaboration: Work closely with technical and business teams to deliver high-quality data solutions and support organisational objectives. Continuous Improvement: Identify opportunities ...

initiatives. AI Initiatives: Collaborate with wider teams on AI-related initiatives and roadmap delivery. Data Governance: Apply best practices around data quality, governance and performance optimisation. Stakeholder Collaboration: Work closely with technical and business teams to deliver high-quality data solutions and support organisational objectives. Continuous Improvement: Identify opportunities ...

optimising low-latency infrastructure operating under real production load. The work sits close to the trading side of the business and centres around performance, reliability, throughput, and systems scalability. The environment is highly technical and engineering-driven, with a strong focus on solving complex infrastructure and optimisation problems. … Role You’ll be working on the core systems supporting live trading activity globally, including market data infrastructure, exchange connectivity, and performance-critical backend services. The team is growing quickly from both a trading and infrastructure perspective, creating increasing demand for engineers who can design, optimise, and maintain ...

looking for a Senior React Native Developer to join our mobile engineering team and play a key role in delivering scalable, high‐performance mobile applications. This role offers the opportunity to contribute to innovative, customer-centric solutions while shaping engineering quality through robust testing, automation, and continuous improvement. … Design and implement robust, scalable mobile solutions using React Native Promote engineering excellence through maintainable, testable code and strong testing practices Optimise applications for performance, responsiveness, and scalability across platforms Support and mentor team members, contributing to a culture of continuous learning and growth Take ownership ...

dashboards to support core insurance use cases Integrating Fabric platforms with policy, claims, and other core insurance systems Applying best practices around data modelling, performance optimisation, and governance Ensuring compliance with regulatory and data privacy standards Supporting the use of AI and advanced analytics within the Fabric ecosystem ...

govern security models across the data platform, including role-based access control (RBAC), dynamic masking, row-level security, and environment segregation. Drive platform performance optimisation and cost management within Snowflake, identifying inefficiencies and implementing scalable warehouse, clustering, and workload management strategies. Design data architectures that support ...

NoSQL databases such as MongoDB. Knowledge of Git and version control systems. Understanding of object-oriented programming (OOP) principles. Experience with debugging, testing, and performance optimization. Preferred Skills Experience with AWS, Azure, or Google Cloud Platform (GCP). Knowledge of Docker, Kubernetes, and CI/CD pipelines. Experience with ...

Solid understanding of microservices and distributed systems, including service boundaries, resilience patterns and event-driven design. Strong PostgreSQL experience, including schema design, indexing and performance optimisation. Hands-on experience with AWS and containerised workloads, ideally using Kubernetes or EKS. Experience with CI and CD pipelines, particularly GitHub Actions ...

services. The Role You will take ownership of SOC-aligned platform engineering across the full lifecycle—from customer onboarding and solution design through to optimisation, maintenance, and continual improvement. You’ll work closely with internal teams and customers to ensure security platforms are resilient, efficient, and aligned to evolving … customer discussions. Key Responsibilities Lead the design and implementation of SOC security platforms across customer environments Own end-to-end delivery, including onboarding, configuration, optimisation, and handover Manage platform lifecycle activities to maintain performance, stability, and operational readiness Drive continual improvement through enhancements to detection, automation, and scalability ...

define and deliver a high-impact roadmap focused on improving conversion, reducing drop-off and increasing basket value, while laying the foundations for future optimisation across Product Listing Pages (PLPs) and the wider browsing journey. What You’ll Be Doing Own the PDP Vision & Roadmap Define the long-term … quantitative insights to identify friction points and opportunities across the customer journey Build and prioritise a roadmap focused on measurable commercial impact Drive Commercial Performance You’ll own and influence key ecommerce metrics including: PDP to Bag conversion Add-to-bag rate Average Order Value (AOV) Returns reduction through ...

define and deliver a high-impact roadmap focused on improving conversion, reducing drop-off and increasing basket value, while laying the foundations for future optimisation across Product Listing Pages (PLPs) and the wider browsing journey. What You’ll Be Doing Own the PDP Vision & Roadmap Define the long-term … quantitative insights to identify friction points and opportunities across the customer journey Build and prioritise a roadmap focused on measurable commercial impact Drive Commercial Performance You’ll own and influence key ecommerce metrics including: PDP to Bag conversion Add-to-bag rate Average Order Value (AOV) Returns reduction through ...

solutions. Their technology sits at the intersection of AI, specialised hardware, and compiler infrastructure, where software and hardware are designed closely together to unlock performance, efficiency, and real-world deployment. This is an opportunity to join a highly technical team working on genuinely challenging problems, with strong technical ownership … direction of the compiler stack. AI Compiler Engineer Responsibilities • Design and develop AI compiler infrastructure targeting specialised hardware platforms • Work across compiler pipelines, optimisation passes, and performance-critical software components • Optimise ML workloads and computational graphs for efficient execution • Contribute to compiler technologies involving LLVM/MLIR ...

that support real-world trading strategies. As a senior member of the team, you will contribute both technically and strategically, helping shape development standards, performance optimisation, and system scalability. You will primarily work within a C# .NET SQL Server ASP.NET ecosystem, developing high-performance, reliable, and maintainable … applications. Key Responsibilities Design, develop, and maintain high-performance applications in C# and .NET Lead architectural discussions and contribute to technical direction Build scalable, reliable systems to support automated trading and research Develop and optimise database solutions (SQL Server or equivalent) Improve performance, reliability, and automation across systems ...

undergo (sole UK Nationality) This is an opportunity to work on hi tech projects that make a real-world impact, developing secure, high performance mobile applications in a collaborative Agile environment. What You'll Be Doing Designing, developing and maintaining Android applications using modern development practices. Collaborating with cross … functional teams including software engineers, testers and product stakeholders. Contributing to application architecture, performance optimisation and code quality initiatives. Supporting the full software development lifecycle from concept through to deployment. What We're Looking For Commercial experience developing Android applications using Kotlin Strong understanding of Android SDK, mobile ...

digital commerce and the renewable energy revolution. As Ecommerce Manager, you will own the full ecommerce function — from platform strategy and team development to performance optimisation and international expansion. You will work at the heart of the business, collaborating with technology, sales, marketing, and operations to ensure … work clearly and managing delivery to time and quality. Platform Management — Magento 2 Take ownership of the company's Magento 2 platform, driving continuous optimisation of functionality, performance, and user experience. Oversee the roadmap for platform development, working closely with developers to plan, prioritise, and deliver improvements ...

backend services and APIs. Investigating, troubleshooting, and resolving issues across the full stack. Working closely with teammates through collaboration and paired programming. Improving system performance, reliability, and scalability. Supporting infrastructure and deployment processes within AWS. Taking ownership of tasks and proactively identifying areas for improvement. What We're Looking …/NLB) Engineering Fundamentals HTTP and networking concepts Caching strategies Linux environments Git (including rebasing, merge strategies, and branching workflows) Testing and debugging Performance optimisation and scalability What Makes Someone Successful Here? You'll thrive if you: Have strong problem-solving skills and can debug independently. Enjoy understanding ...

calibre engineering team. You’ll write modern C++ (C++20 or later) at the heart of our Linux-based clock and time synchronisation platform - tight, performance-sensitive code where jitter is measured in nanoseconds and correctness is non-negotiable. You’ll own significant components of the platform, contribute to architecture … developer and a contractor on a tight, collaborative team. The Role Reporting to the Software Development Manager, you’ll lead the design, development, and optimisation of C++ software within our Linux-based timing systems. Day to day, you will: Design, build, and optimise low-latency, high-precision C++ ...