1 to 25 of 114 Remote/Hybrid Performance Optimisation Jobs in the UK

Web Developer

Hiring Organisation
Searchability
Location
Chester, Cheshire, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £50,000 per annum
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 ...

Lead AI Engineer

Hiring Organisation
Newpage Solutions
Location
City Of Bristol, England, United Kingdom
ability to architect distributed systems A ‘no-compromise’ attitude with engineering best practices such as clean code, TDD, containerisation, security, CI/CD, scalability, performance and cost optimisation Active user of AI-assisted development tools (Claude Code, GitHub Copilot, Cursor) with demonstrable experience using structured workflows … scalable microservice architecture Proven track record developing and deploying GenAI/LLM-based systems in production Advanced understanding of context engineering, prompt construction, optimisation and evaluation techniques End-to-end implementation experience using vector databases and retrieval pipelines Experience with GitHub Actions, Docker, Kubernetes and cloud-native deployments ...

Software Engineering Manager - UCX (Web Frontend)

Hiring Organisation
Hargreaves Lansdown
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
front-end and web engineers (React) 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 Leadership & Delivery Provide … modern web technologies, including JavaScript, HTML, CSS, and React-based frameworks . Strong understanding of modern front-end architecture, including state management, routing, navigation, performance optimisation, module federation, microservice architecture and accessibility standards. Experience designing and maintaining CI/CD pipelines , using version control effectively, and working within ...

Snowflake Data Architect

Hiring Organisation
IO Associates
Location
United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£600 - £700 per day
architectural design of the Snowflake data platform, including schema design, modelling, ingestion patterns and workload orchestration. Define and implement best practices around Snowflake performance tuning, cost optimisation, and data governance. Oversee integration of Snowflake with wider cloud ecosystems (Azure/AWS/GCP depending on programme). Work … scale programmes. Strong background in data modelling , Cloud Data Warehousing , and ELT frameworks. Hands-on experience with: Snowflake configuration & security Snowpipe, Streams, Tasks, Stages Performance optimisation & cost control SQL, Python, dbt (advantageous) Experience working in public sector or other highly regulated environments. Good knowledge of cloud ecosystems such ...

Full Stack Developer - Python, Django, React

Hiring Organisation
OCC Computer Personnel
Location
Crewe, Cheshire, United Kingdom
Employment Type
Permanent
will be working for an Agile, tech driven innovative company who offer continuous improvement and career progression. Desired tech stack includes Front end performance optimization (Tailwind, Storybook), database design, CI/CD, Docker, Linux systemsadmin, application security and monitoring tools Datadog. The client can offer hybrid working. ...

Full Stack Developer - LEEDS

Hiring Organisation
Reed
Location
Leeds, West Yorkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum, Inc benefits
backend services with Node.js/Express. Creating modern, responsive UI components using React (including Hooks). Working with MongoDB for data modelling, indexing, and performance optimisation. Ensuring security best practices — especially relevant for healthcare systems. Participating in Agile ceremonies, code reviews, and platform improvement sessions. Debugging, troubleshooting, and enhancing ...

Software Engineering Manager - UCX (Mobile)

Hiring Organisation
Hargreaves Lansdown
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
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 ...

Senior Data Architect - Quantexa Certified (Mandatory)

Hiring Organisation
PSD Technology Contracts Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
pipelines, configuring Quantexa components, and translating complex business requirements into scalable, production-ready implementations. You will play a key role in ensuring solution quality, performance, and alignment with wider enterprise data architectures. Why Join? This role offers the opportunity to work on high-impact data initiatives using industry-leading … components, including Entity Resolution, Scoring, and Network Generation, to meet specific use cases Collaborate with Solution Architects and Tech Leads to design scalable, high-performance solutions Translate business and technical requirements into efficient, maintainable data engineering solutions Support the integration of Quantexa within broader enterprise and cloud-based data ...

Senior Software Engineer

Hiring Organisation
ReeVR
Location
West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
Experience with TypeScript and React Exposure to frontend design systems Experience with Docker and cloud platforms (AWS preferred) Knowledge of modern web architecture and performance optimisation A proactive, pragmatic mindset someone who takes ownership and gets things done Why apply to be a Software Engineer? Join a mission ...

Senior Software Engineer

Hiring Organisation
Reevr Talent Ltd
Location
Paddington, London, Lancaster Gate, United Kingdom
Employment Type
Permanent
Salary
£70000 - £90000/annum
Experience with TypeScript and React Exposure to frontend design systems Experience with Docker and cloud platforms (AWS preferred) Knowledge of modern web architecture and performance optimisation A proactive, pragmatic mindset — someone who takes ownership and gets things done Why apply to be a Software Engineer? Join a mission ...

TypeScript Software Engineer | London | Hybrid | Algorithms | Design Patterns

Hiring Organisation
techstack Recruitment
Location
City of London, London, United Kingdom
pension, private healthcare, gym membership, hardware budget London (Hybrid – 2 days WFH) A high-growth software company is building the next generation of high-performance UI frameworks and data-intensive visualisation technology. Their products power mission-critical applications used by global enterprises, financial institutions, and technology firms, relied … hire engineers who enjoy working close to the metal of the browser, solving problems that demand a deep understanding of algorithms, runtime behaviour, and performance at scale. This is not typical web development. It’s engineering at the limits of what modern browsers can do. What you’ll work ...

Lead Developer - .NET/Azure

Hiring Organisation
Nixor
Location
Edinburgh, Scotland, United Kingdom
Development Team Lead | Data Platforms and Performance Edinburgh preferred | Hybrid working | £67,000 to £76,000 About the Company We're partnering with a profitable, product-led technology scale-up operating in the enterprise software space, where data sits at the heart of how customers run their businesses. … optimise delivery and profitability. Backed by a supportive board and private equity partner, the business is now investing heavily in its data foundations, application performance, and next generation AI capabilities. Engineering plays a central role in that strategy. Teams are working on structural change across established systems to support ...

Front-End Developer

Hiring Organisation
William Reed
Location
Gatwick, West Sussex, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
technical functionality and escalating critical gaps in project requirements or processes, when necessary, to proactively address issues Testing and debugging designs to ensure seamless performance and adherence to accessibility standards (e.g. WCAG compliance) Optimising website performance to meet Core Web Vitals benchmarks, including Largest Contentful Paint (LCP), First … Input Delay (FID), and Cumulative Layout Shift (CLS) Leveraging modern development techniques such as lazy loading, efficient asset management, and CSS/JS optimisation to enhance user experience and speed Working alongside testers in UAT to ensure our products work as intended Efficiently triaging and managing assigned tickets, maintaining ...

Lead Software Engineer, React Native

Hiring Organisation
Travelex
Location
City of London, London, United Kingdom
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 ...

SC Cleared Microsoft Dynamics 365 Developer

Hiring Organisation
Data Careers
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
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 ...

Front End Developer

Hiring Organisation
Intellectual Property Office
Location
Newport, Gwent, Wales, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£45,000
reach a common understanding of acceptance criteria, the code base and test coverage Assist in Implement toolkits and APIs for purposes such as integration, performance optimisation, security and scalability Proactively investigate problems and opportunities in existing processes, evaluating and communicating findings and recommendations to stakeholders Identify and manage ...

Tableau Developer - SC & NPPV3

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £520 per day
visually effective BI solutions Collaborate with data engineers to integrate dashboards with secure data sources and pipelines Ensure best practices in data visualisation, performance optimisation, and usability Implement security, compliance, and governance standards in all Tableau workbooks and dashboards Develop reusable reporting templates and documentation for internal teams … hands-on experience with: Tableau Desktop and Tableau Server/Tableau Online Data blending, calculated fields, parameters, sets, and LOD expressions Optimising dashboards for performance and usability Solid SQL skills for querying relational and cloud-based data sources Experience integrating Tableau with secure or regulated environments Understanding of data ...

Frontend Developer

Hiring Organisation
Stealth iT Consulting
Location
London Area, United Kingdom
/or Angular Collaborate with back-end teams to integrate with RESTful APIs Ensure applications meet accessibility and usability standards Apply best practices around performance, security and code quality Contribute to UI architecture, reusable components and design systems Work collaboratively using Git-based version control Skills & Experience Required Strong … agile, multi-disciplinary teams Desirable Experience Experience contributing to design systems or component libraries Exposure to CI/CD pipelines for front-end applications Performance optimisation and cross-browser compatibility Mentoring junior developers or providing technical guidance Why Join? Work on high-impact digital services Modern tech stack ...

D365 BC Developer

Hiring Organisation
We Are Dcoded Limited
Location
Stockport, Greater Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
designs Support and optimise data migration processes and system upgrades Troubleshoot, debug and resolve complex technical issues across environments Contribute to solution architecture decisions, performance optimisation and best practice Ensure all development aligns with SaaS, security and Microsoft standards Support post-go-live optimisation and continuous improvement ...

Full Stack Web Developer

Hiring Organisation
LM RECRUITMENT SOLUTIONS LTD
Location
Stroud, Gloucestershire, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
Exposure to headless CMS platforms and their integration into web application architectures. Experience with e-commerce platforms, CRM systems, or licensing integrations. Experience with performance optimisation and Nginx configuration. Personal Attributes Proactive problem solver with strong attention to detail. Enthusiastic about learning new technologies and tackling complex challenges. ...

Data and Solutions Engineer

Hiring Organisation
Perch Group
Location
Manchester, UK
premise and cloud-based data sources. Data Quality & Monitoring: Design data observability and quality checks into all ETL processes, enabling proactive identification of discrepancies. Performance Optimisation: Optimise data platforms, ETL processes, and database solutions for reusability and performance. Financial Calculations: Writing robust and repeatable formulae, prescribed ...

Azure DevOps Engineer

Hiring Organisation
Stott & May Professional Search Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£70,000
load balancers, and firewalls. Skilled with enterprise level deployments across microservices and multi server environments. Experience with MLOps platforms (ideally Azure), database maintenance, and performance optimization. Familiarity with ITIL or ISO27001. Ability to review CVs and participate in the recruitment process. Azure certification to Architecture or DevOps Solutions level ...

Machine Learning Engineer

Hiring Organisation
Robert Walters
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £95,000 per annum
building, and deploying scalable machine learning and GenAI solutions. You'll work on complex, multi-layered datasets and contribute to model governance, evaluation, and optimisation in regulated, real-world environments. You will also be involved in reviewing and assessing GenAI use cases from across the business and supporting robust … controls around model usage. Key Responsibilities Design, build, and productionise machine learning and Generative AI solutions that meet enterprise standards for scalability, reliability, and performance Partner closely with data scientists to turn experimental models into well-engineered, production-ready systems Develop and maintain end-to-end ML pipelines, including ...

Backend Software Engineer / SRE Java JVM

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
driving improvements across the platform. You'll have a broad scope including hands-on coding (Java) to build tools and automation, incident response, observability, performance optimisation and operational excellence, working with large scale Java JVM distribution systems and message brokers such as Kafka and ActiveMQ, with … terrace, canteen and break out areas. About you: You have a strong Java software engineering background and a deep knowledge of JVM internals and performance tuning You have a good knowledge of Site Reliability Engineering and how to build scalable solutions to improve reliability, productivity and efficiency You have ...

Technology Lead

Hiring Organisation
Addition
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
technologies and recommend innovations aligned with business objectives Cloud & Infrastructure Design, deploy, and manage cloud-based solutions, primarily within Microsoft Azure Oversee system availability, performance, security, and disaster recovery Ensure infrastructure is scalable, cost-efficient, and compliant with industry standards Data & Reporting Design and oversee data architecture, pipelines … including HTML, C++, and modern web frameworks Provide technical oversight for websites, portals, and Learning Management Systems (LMS) Ensure high standards of code quality, performance, accessibility, and security Review architecture, code, and integrations to ensure maintainability and scalability LMS & Website Management Lead the technical development and ongoing enhancement ...