1 to 25 of 213 Performance Optimisation Jobs in the UK excluding London

Web Developer

Hiring Organisation
Searchability (UK) Ltd
Location
Chester, Cheshire, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
Developer Frontend Development, Web Performance, Accessibility, CMS Salary £40-50k Hybrid working - Chester Strong progression and learning opportunities Who We Are We are a technology-driven organisation building and maintaining modern, cloud-based web platforms that support both internal teams and external users. Web development plays a critical … experiences. Working closely with IT, product, and business stakeholders, our web team focuses on building high-quality, maintainable websites that follow best practice in performance, security, and accessibility. As our platforms continue to evolve, we're looking for a skilled Web Developer to help design, build, and improve ...

Web Developer

Hiring Organisation
WEG Tech
Location
Coventry, England, United Kingdom
shared component library. Integrate front-end components with CMS-driven content and configuration. Consume APIs from the headless CMS and microservices. Ensure high performance, accessibility, responsiveness, and cross-browser compatibility. CMS & Component Integration Collaborate with CMS developers to ensure components are correctly structured in Payload CMS. Implement dynamic rendering … first environment hosted in AWS. Work within containerised environments deployed to Kubernetes. Support CI/CD practices and participate in deployment workflows. Contribute to performance optimisation and observability initiatives. Required Skills & Experience Essential Strong experience with Vue.js and Nuxt.js Experience working with headless CMS platforms (ideally Payload ...

Data Engineer

Hiring Organisation
Chesterfield Royal Hospital NHS Foundation Trust
Location
Sutton In Ashfield, NG17 4JL, United Kingdom
Salary
£43699.00 to £50361.00
line with interoperability and governance requirements. As priorities evolve, the postholder will work across areas such as system integration, platform development, pipeline optimisation and the enhancement of organisational data assets. This flexible approach ensures specialist engineering capability is deployed where it delivers the greatest benefit, supporting programme delivery … automation tools to streamline data processes. The EPR Data Engineer will provide technical support during testing phases, troubleshoot data-related issues, and contribute to performance optimisation of the EPR system. Compliance and Security The postholder will ensure that all data handling activities comply with NHS information governance standards ...

Technical Lead C++

Hiring Organisation
Microlise
Location
Altrincham, Cheshire, North West, United Kingdom
Employment Type
Permanent
Salary
£70,000
ongoing professional development, architectural guidance, and opportunities to broaden your leadership impact. As a Technical Lead, you will oversee the design, implementation, and optimisation of advanced C++ solutions, ensuring our systems remain robust, scalable, and aligned with best-in-class engineering practices. You will work closely with cross-functional … refine architectures, drive technical decision-making, and unblock complex engineering challenges. Alongside hands-on technical oversight, you will champion engineering excellence across code quality, performance, security, and maintainability, while supporting and developing the next generation of engineers through structured coaching and collaboration. At Microlise, we recognise the importance ...

Technical Architect

Hiring Organisation
Harvey Nash IT Recruitment UK
Location
Chester, Cheshire, United Kingdom
Employment Type
Permanent
Salary
GBP 80,000 - 90,000 Annual
architecture, develop scalable analytics solutions, and stay hands-on. Responsibilities include delivering Fabric solutions (OneLake, Lakehouse, Warehouses, Power BI), leading architecture and performance optimisation, and enabling advanced analytics and machine learning with Fabric and Azure ML. Key skills and responsibilities: Design and deliver scalable, secure … data modelling, DAX, Python/PySpark, SQL/KQL. Proven record of technical leadership and effective stakeholder engagement. Lead architectural design, capacity planning, and performance optimisation efforts. Implement governance, security, and DevOps best practices. Lead a small team of data engineers and contribute to the development ...

Lead Analytics Engineer (Contract)

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
Doing Hands-on development using SQL, DBT, and Snowflake Implementing, refactoring, and optimising Snowflake data models Creating and maintaining data assets, ensuring performance, quality, and reliability Updating consumers and reviewing code to maintain standards Working within structured project tracking tools (Asana/Jira) Delivering approximately 50 refactorings/migrations … Strong experience in SQL, DBT, and Snowflake Familiarity with dimensional modelling (Kimball methodology preferred) Understanding of building models for large stakeholder groups Experience with performance optimisation, data quality, and query/resource efficiency Comfortable working in a collaborative, fast-moving environment with a growth mindset Experience with startups ...

WordPress Developer / Creative Site Builder

Hiring Organisation
One Design Group UK
Location
Newcastle Upon Tyne, England, United Kingdom
Translate design concepts into responsive, pixel-accurate builds Implement structured content using Advanced Custom Fields (ACF) Support WooCommerce, MemberPress and other plugin-based functionality Performance, Quality & Optimisation Ensure websites are fast, secure, accessible and SEO-friendly Manage updates, performance optimisation and overall site health Test across … development of basic web-based applications, tools or integrations Work with databases (MySQL) and APIs at a foundational level Follow best practices for security, performance and maintainability Digital Marketing & Content Support Assist with Google Ads and META (Facebook/Instagram) advertising campaigns Help build and send email newsletters ...

Senior Developer

Hiring Organisation
Reed.co.uk
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 per annum
code reviews, architecture discussions, and system design decisions. Troubleshoot and resolve complex technical issues across the full stack. Ensure software security, scalability, and performance are maintained at all times. Keep abreast of emerging technologies and industry trends to inform strategic decisions. Skills and Experience Minimum 8 years of commercial … orchestration tools such as Docker and Kubernetes. Familiarity with event-driven architecture and message brokers (e.g., Kafka, RabbitMQ). Knowledge of front-end performance optimisation and accessibility standards. Exposure to machine learning pipelines or data engineering workflows. Prior experience working in startup environments or high-growth technology companies. ...

Salesforce Marketing Cloud Manager

Hiring Organisation
Rocking Zebra
Location
Wiltshire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
Delivery Design and deploy targeted campaigns using Email Studio and Automation Studio Support national marketing initiatives and regional campaigns Ensure brand consistency and campaign performance optimisation Data & Platform Management Manage data extensions, segmentation logic and subscriber management Work closely with Salesforce Sales Cloud stakeholders to maintain data accuracy … Monitor and resolve data sync or integration issues Insights & Performance Build dashboards and performance reporting Analyse journey performance, engagement and conversion metrics Provide actionable recommendations to improve campaign performance Governance & Best Practice Establish Marketing Cloud processes and documentation Support GDPR-compliant marketing activity Help train internal ...

Senior AI Engineer Python, React, Azure

Hiring Organisation
Synextra
Location
Birchwood Park, Birchwood, Warrington, Cheshire, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £95,000 per annum
highly performant, accessible, and intuitive user experience for AI-driven tooling, including real-time streaming interfaces and interactive data visualisations Lead the configuration and optimisation of Azure cloud environments, establishing robust CI/CD pipelines with GitHub Actions or Azure DevOps, and ensuring cost-optimised use of Azure … such as FastAPI, Pydantic, and async patterns Strong proficiency in TypeScript and React for building production-grade frontends, with solid understanding of state management, performance optimisation, and modern component architectures Deep practical knowledge of integrating and scaling LLM features in production environments, including managing token limits, latency budgets ...

Senior Full Stack Engineer

Hiring Organisation
Synextra
Location
Birchwood Park, Birchwood, Warrington, Cheshire, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £95,000 per annum
/React frontend, ensuring a highly performant, accessible, and intuitive user experience, including real-time interfaces and interactive data visualisations Lead the configuration and optimisation of Azure cloud environments, establishing robust CI/CD pipelines with GitHub Actions or Azure DevOps, and ensuring cost-optimised use of Azure services … such as FastAPI, Pydantic, and async patterns Strong proficiency in TypeScript and React for building production-grade frontends, with solid understanding of state management, performance optimisation, and modern component architectures Solid database skills including relational (PostgreSQL, SQL Server) and NoSQL (Cosmos DB, Redis) with experience in query optimisation ...

Senior Java Developer - Manchester

Hiring Organisation
Morson Edge
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
coding experience preferred) Solid background in system design, distributed systems, and cloud architectures (AWS/Azure/GCP) Passion for clean code, testing, and performance optimization Excellent communication, leadership, and decision-making skills A mindset for innovation, problem-solving, and continuous improvement Bonus Points For Experience in microservices architecture ...

Full Stack Engineer

Hiring Organisation
fulfilment.com
Location
Greater Bristol Area, United Kingdom
React and Next.js Ensure smooth integration between backend APIs and frontend components Integrate third-party APIs and internal services Apply best practices for security, performance, reliability, SEO, and accessibility Write clean, testable code with strong unit and integration test coverage (e.g. Jest, Cypress) Architecture & Technical Leadership Contribute to system … with React and Next.js Advanced proficiency in JavaScript and TypeScript Strong backend experience with NestJS and Node.js Hands-on experience with MySQL (schema design, performance tuning, indexing, migrations) Experience building RESTful and/or GraphQL APIs Experience with ORM frameworks such as TypeORM or Prisma Familiarity with Docker ...

Senior Machine Learning Engineer

Hiring Organisation
Matchtech
Location
Bristol, Gloucestershire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 78 Hourly
Error Rate (CER) and Word Error Rate (WER) Proficiency in Python and ML frameworks (e.g., TensorFlow, PyTorch) Understanding of ML architectures, hyperparameter tuning, and performance optimisation Experience with MLOps tools and CI/CD pipelines Familiarity with data engineering concepts (ETL, data pipelines, SQL) Ability to analyse complex ...

Martech Solution Architect

Hiring Organisation
Akkodis
Location
Stevenage, England, United Kingdom
integrations between marketing tools, and configure workflows Set up and optimise Adobe Experience Manager, Adobe Campaign and other Adobe marketing tools for best performance Ensure MarTech stack security, compliance, scalability, and performance optimisation Work with Piwik Pro and other analytics tools to configure tracking, reporting and marketing … insights Use Cloudflare to improve security and performance of marketing web properties Work closely with business analysts, developers, and IT security to ensure the solution meets business needs Required Skills and Experience: Strong experience with AEM and Adobe Campaign Proficiency in Java, JavaScript, React, HTML, CSS, and working with ...

Software Developer

Hiring Organisation
Anson Mccade
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent
have experience in this tech stack Strong programming skills in C# and .NET or Java/Python Experience with SQL databases and writing high-performance queries Hands-on experience with cloud platforms such as Azure or AWS including AI services Exposure to modern development practices including automated testing … highly desirable but not required Experience in financial services or capital markets Knowledge of AI, machine learning models, or distributed systems Experience with performance optimisation, scalability, or low-latency systems Background in regulated or security-focused environments Benefits Generous performance-based bonus of up to 20 percent ...

Senior Software Engineer - Front End

Hiring Organisation
mkodo
Location
Newcastle Upon Tyne, England, United Kingdom
implementation of projects or features of moderate to high complexity. Write production-quality, well-tested, maintainable code aligned with engineering standards. Ensure reliability, performance, security, and scalability across systems and platforms. Drive investigation and resolution of complex technical issues across the stack. Contribute to and lead technical projects spanning … practices. Support security and regulatory compliance (e.g., ISO27001, PCI where applicable). Adhere to secure coding and operational best practices. Ensure systems meet reliability, performance, and quality standards. Key Skills & Attributes: Core expectations Significant experience as a Senior Software Engineer or equivalent. Deep expertise in at least ...

Python Developer

Hiring Organisation
Stackstudio Digital Ltd
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
From £300 to £340 per day
experience with data analytics, visualization, and database systems. Solid understanding of power system modelling, techno-economic simulation, and energy systems. Strong debugging, profiling, and performance optimization skills. Excellent communication and documentation abilities. Experience using Pyomo, AMPL, Gurobi, CPLEX, or similar optimization tools. Working knowledge of containerization and cloud-native ...

Senior Frontend Developer

Hiring Organisation
Dirty Martini Marketing Ltd
Location
Exeter, England, United Kingdom
high-end construction companies. Working closely with our Senior Developer and design team, you’ll collaborate on developing bold concepts into pixel-perfect, high-performance experiences. We run a modern JAMStack, headless architecture designed for performance and scale, with CI/CD pipelines for automated testing and deployment. … designs into refined, performant builds ✔ Collaborating with designers, strategists and project managers ✔ Maintaining and improving existing projects as they evolve ✔ Learning best practices around performance, security and scalability ✔ Contributing ideas - technically and creatively ✔ Develop industry-leading WordPress and Shopify websites for incredible clients. ✔ Maintain hosting environments - optimising performance ...

Senior Data Engineer

Hiring Organisation
Lynx Recruitment Limited
Location
South West London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
Data Factory). Experience designing and managing cloud data platforms (Snowflake essential; AWS/Azure/GCP desirable). Solid data modelling knowledge and performance optimisation skills. Awareness of data governance, security, and regulatory compliance . Ability to work closely with technical and business teams to deliver impactful ...

Principal Engineer - Comms Surveillance

Hiring Organisation
Marlin Selection
Location
South East England, UK
leader within the Surveillance Technology team. Provide expert oversight across analysis, architecture, design and delivery of complex systems. Architect, build, and evolve scalable, high-performance solutions for Communications Surveillance and Record Keeping. Lead engineering standards: architecture reviews, vendor assessments, impact analysis, and automated testing. Mentor and develop engineering talent … Record Keeping. Translate complex technical concepts for both technical and non-technical stakeholders. Support agile planning, estimation and prioritisation. Identify opportunities for system optimisation, refactoring, and alignment to target architectures. Manage technical risks, issues and dependencies. Benchmark against peer organisations to ensure alignment with regulatory and industry expectations. Experience ...

Junior Full-Stack Web Developer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Norwich, Norfolk, England, United Kingdom
Employment Type
Full-Time
Salary
£35,000 - £40,000 per annum
APIs to support internal platforms and analytical workflows. Develop responsive front-end interfaces using JavaScript, HTML, and CSS Manage and optimise PostgreSQL databases, including performance tuning and data analysis Deploy and maintain applications in Linux and Docker environments Ensure all development work, systems, processes, and codebases is clearly documented … backend engineering Python and Django framework expertise REST API design and integration Front-end development with JavaScript, HTML, and CSS Advanced PostgreSQL knowledge, including performance optimisation and data analysis Experience working within Linux environments, Docker containers, and Git workflows Demonstrated ability to produce clear, structured technical documentation Desirable ...

Lead Software Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Warrington, Cheshire, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
RESTful API design and authentication patterns Ability to balance hands-on delivery with technical leadership responsibilities Desirable Experience Multi-environment Azure architecture design Angular performance optimisation Designing role-based access control systems Cloud cost optimisation practices Exposure to penetration testing and secure SDLC processes Experience contributing ...

Frontend Developer

Hiring Organisation
ISL Talent
Location
City Of Bristol, England, United Kingdom
operational tools, and data visualisation platforms, transforming complex datasets into intuitive user experiences. This is a hands-on role where you’ll build high-performance, secure, and scalable interfaces used by large organisations across the UK and Europe. As the platform grows, you’ll play a key role … improving performance, enhancing accessibility, and developing intuitive, maintainable UI components. You’ll collaborate closely with product, data, and engineering teams while contributing to frontend architecture and best practices. What Success Looks Like Success in this role means building interfaces that are fast, reliable, and intuitive. Complex datasets will become ...

Senior .Net Developer

Hiring Organisation
ISR RECRUITMENT LIMITED
Location
South West, United Kingdom
Employment Type
Permanent
Salary
£55000 - £65000/annum (plus excellent company benefits)
trade-offs between ORMs and stored procedure-driven access. Ability to lead architectural decisions and evolve backend engineering practices. Excellent troubleshooting, debugging and performance optimisation skills. Strong communicator, able to collaborate effectively with engineering, product and offshore teams. Experience integrating services into CI/CD pipelines (GitHub Actions ...