Performance Optimisation Jobs in the UK

1 to 25 of 688 Performance Optimisation Jobs in the UK

Lead React Native Engineer

London, United Kingdom
Hybrid / WFH Options
Randstad (Schweiz) AG
mobile application, leading its development from 0 to 1. This role will be crucial in establishing the foundation of our mobile experience, ensuring high performance, scalability, and adherence to best practices from day one. As a key player, you'll also be instrumental in upskilling our existing React developers … What You'll Be Doing: Lead Mobile Application Development: Lead the development of our new mobile application, ensuring it delivers a seamless and high-performance user experience across both iOS and Android. Own the architecture and make critical technical decisions, establishing best practices for mobile development from the outset. … transition into React Native and mobile development. Share best practices and knowledge to improve the team's overall mobile development competency. Ensure Mobile App Performance: Ensure mobile app performance is optimal across different devices and platforms, focusing on speed, responsiveness, and stability. Use mobile performance optimisation More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior C++ Engineer

Belfast, Northern Ireland, United Kingdom
Hybrid / WFH Options
VANRATH
as a generous salary above the market rate. About the Role: As a C++ Developer, you will play a crucial role in developing high-performance financial software for a global client base. You will work closely with a talented and passionate team of developers to deliver robust solutions in … to expand your knowledge and experience in financial technologies, with exposure to complex systems and high-value projects. Key Responsibilities: Develop and maintain high-performance C++ applications for financial services. Work on low-latency systems with a focus on performance optimisation and reliability. Collaborate with cross-functional … teams to design, implement, and optimise software solutions. Troubleshoot, debug, and resolve technical issues, ensuring top-notch performance and reliability. Stay up-to-date with industry trends and emerging technologies to maintain a competitive edge. Contribute to code reviews and maintain coding best practices. Work in enterprise-scale environments More ❯
Posted:

Tech Lead, Inference Performance, Onboard London

London, UK
Wayve Technologies Ltd
The role As the Technical Lead for the Performance Optimisation Team at Wayve, you will play a key role in equipping the company with the tools and strategies needed to ensure its onboard software operates efficiently and reliably. You will lead the development of advanced profiling tools and … performance analysis techniques, enabling a deep understanding of the software’s computational requirements. You will also use these tools to ensure that critical systems, such as AI inferencing, meet stringent timing and performance constraints. By architecting scalable and robust solutions, you will empower the team to optimise performance … fostering a culture of technical excellence. You will work closely with the team’s manager to shape and deliver a roadmap that prioritises impactful performance analysis and optimisation initiatives. Beyond providing technical guidance, you will establish best practices in profiling and performance engineering, ensuring the team is More ❯
Posted:

Senior iOS Engineer

London, UK
Hybrid / WFH Options
Rightmove
the development lifecycle of new features, from concept through to production, ensuring a seamless user experience. Technical Excellence: Architect, design, and implement complex, high-performance mobile applications, utilising modern iOS development frameworks and best practices. User-Focused Solutions: Advocate for the user at every stage, ensuring our iOS app … culture. Data-Driven Iteration: Collaborate with data teams to leverage analytics and user feedback to continuously improve and refine product features post-launch. Quality & Performance: Ensure the codebase remains scalable, maintainable, and efficient through best-in-class engineering practices, including code reviews, CI/CD, and automated testing. We … and QA to drive product outcomes. Data-Informed Decision-Making: Familiarity with mobile analytics and a data-driven approach to iterating on user experience. Performance Optimisation: Deep understanding of iOS performance optimisation techniques to ensure smooth, responsive, and high-performing applications under a variety of conditions. More ❯
Posted:

Senior Full Stack Developer (React, Node)

London, UK
Hybrid / WFH Options
Cognito Education
AWS (S3, CloudFront, Elastic Beanstalk, CodePipeline) - Familiarity with cloud infrastructure, deployments, and CI/CD workflows MongoDB Atlas - Understanding of database management, indexing, and performance optimisation Front-End Development - Strong React skills, with a focus on performance, state management, hooks and functional component-driven architecture Version Control … and iterate on new features or experimental projects Analytics & Data Processing - Familiarity with tools like Google Analytics and BigQuery for tracking and analysing platform performance Next.js & SSR - Understanding of server-side rendering and static site generation to optimise web performance Backend Performance & Scaling - Experience with caching strategies … API optimisation, and server performance tuning Who We're Looking For Beyond technical skills, we seek a developer who brings the adaptability and independent drive that startup success demands: Flexible & Adaptable - Able to quickly switch between different projects and priorities Autonomous & Reliable - Can take ownership of tasks with More ❯
Posted:

Principal Data Engineer

London, United Kingdom
Iwoca
Warehouse: Take ownership of our Snowflake platform to ensure it is a highly efficient and accessible resource for the business. Implement best practices for performance optimisation, scalability, and cost management, empowering teams to access and utilise data seamlessly. Streamline Data Pipelines: Lead the development and optimisation of … the adoption of innovations that enhance our data engineering capabilities, ensuring we remain competitive and forward-thinking. The requirements Essential: Expertise in Snowflake, including performance optimisation, cost management, and advanced data warehousing techniques. Experience in designing and implementing scalable data architectures that meet the needs of complex, data … But, we're open-minded, so definitely include your salary goals with your application. We routinely benchmark salaries against market rates, and run quarterly performance and salary reviews. The culture At iwoca, we prioritise a culture of learning, growth, and support, and invest in the professional development of our More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Product Manager - Performance & SEO

London, UK
Hybrid / WFH Options
News UK
job is brought to you by Jobs/Redefined, the UK's leading over-50s age inclusive jobs board. Job Description Role: Product Manager - Performance & SEO Location: London Bridge Contract: Permanent The Times informs, entertains, campaigns and innovates. Our technology team is at the heart of this innovation and … of both the Product team and The Times as a whole, you will be responsible for executing the Product strategy and directing the Product Performance tribe. The tribe is made up of cross-functional squads of Product, Design and Business Analysis, supported by a dedicated Delivery and Engineering team. … Role: You will own and drive our digital product strategies focused on organic search performance, website optimisation, and site performance. This role will work at the intersection of SEO, user experience, and product development to enhance website visibility, drive traffic growth, and improve digital performance. Day to day More ❯
Posted:

Frontend Developer

Birmingham, England, United Kingdom
Phantom Hire
experience is beneficial, this is a frontend-first role , focusing primarily on responsive website development, headless CMS integration (ButterCMS, Contentful, etc.), WordPress customisation, and performance optimisation . Position Overview As a Frontend Developer , you will be responsible for building, optimising, and maintaining websites that elevate Phantom Hire’s … to ensure every website is fast, scalable, and visually engaging while following the latest front-end technologies and best practices. Key Responsibilities Develop high-performance, mobile-first websites using modern front-end technologies. Create engaging, SEO-optimised, and accessible website experiences with an emphasis on speed and user experience. … ES6+) Modern JavaScript frameworks (React, Vue, or similar) Headless CMS solutions (ButterCMS, Contentful, Strapi, or similar) WordPress theme customisation & plugin integration Expertise in website performance optimisation, Core Web Vitals, and SEO-friendly development . Experience with responsive design frameworks (Tailwind, Bootstrap, SCSS, Styled Components, etc.) . Knowledge of More ❯
Posted:

Staff Engineer - Data - Customer Decisioning

London, UK
Hybrid / WFH Options
Sainsbury's
re exaggerating when we say we have the most exciting data set in the country. And from the insights gained, we build scalable, high-performance products using cutting-edge technology that give our customers an amazing shopping experience – like our award-winning Smartshop app. In an inclusive, agile environment … data security. Collaborate with cross-functional teams to address data-related challenges, ensuring the timely and accurate delivery of data solutions. Actively contribute to performance optimisation and enhance reusability across platforms and processes. More about you: Experience in designing, deploying and maintaining large scale data or machine learning … tooling in cloud platforms such as AWS and Azure, open-source transformation libraries and event streaming platforms. Solid grasp of data governance, security, and performance optimisation, as well as knowledge of GDPR and PII data handling principles. Self-starter with proven ability to work autonomously or as part More ❯
Posted:

Senior Analytics Business Partner

Runcorn, Preston on the Hill, Cheshire, United Kingdom
Hybrid / WFH Options
SF Recruitment
West HQ. Modern Tech Stack: Get hands-on with Power BI, Microsoft Fabric, Python (PySpark), and SQL. High-Impact Projects: From predictive analytics to performance optimisation, your work will drive measurable results across retail, supply chain, and beyond. Why This Role? Strategic Influence: Your insights will land directly … Stack: Get hands-on with Power BI, Microsoft Fabric, Python (PySpark), and SQL-no legacy reporting here. High-Impact Projects: From predictive analytics to performance optimisation, your work will drive measurable results across retail, supply chain, and beyond. Join a business that's investing heavily in data transformation More ❯
Employment Type: Permanent
Salary: £60000 - £70000/annum
Posted:

Product Director, Collections & Customer Management

London, UK
Experian Health
Product Director to lead our Collections & Customer Management division in the UK&I. This strategic role is responsible for driving product innovation, enhancing operational performance, and managing a high-stakes portfolio with a $50 million P&L. The ideal candidate will bring a deep understanding of the collections market … Drive innovation and continuous improvement across the product portfolio, ensuring competitive differentiation and customer-centric solutions. Oversee a $50 million portfolio, ensuring robust financial performance, cost optimisation, and revenue growth. Collaborate with finance and operations teams to set targets, monitor performance metrics, and implement corrective measures as … necessary. Lead the end-to-end product lifecycle from ideation and development through to launch, performance optimisation, and eventual retirement. Continuously monitor market trends, regulatory changes, and competitor activities to identify opportunities and mitigate risks. Leverage industry insights and customer feedback to refine product offerings and enhance market More ❯
Posted:

Lead Power Platform Developer

Milton Keynes, Buckinghamshire, United Kingdom
East West Rail Company
Virtual Agents. Function: The Corporate Services function is accountable for providing core enabling capability to the other functional areas in EWR Co. to maximise performance of the organisation, that includes financial management, IT and HR services. It is accountable for providing reporting services to enable decision making and assuring … Azure Functions, Azure DevOps, and Azure Storage. Version Control: Proficient in Git and collaborative development workflows and ensuring code quality through reviews and testing. Performance Optimisation: Monitor and optimize application performance and troubleshoot issues as they arise. Problem-Solving Skills: Strong analytical skills for troubleshooting and optimising More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Product Director, Collections & Customer Management

London, United Kingdom
Experian Group
Product Director to lead our Collections & Customer Management division in the UK&I. This strategic role is responsible for driving product innovation, enhancing operational performance, and managing a high-stakes portfolio with a $50 million P&L. The ideal candidate will bring a deep understanding of the collections market … Drive innovation and continuous improvement across the product portfolio, ensuring competitive differentiation and customer-centric solutions. Oversee a $50 million portfolio, ensuring robust financial performance, cost optimisation, and revenue growth. Collaborate with finance and operations teams to set targets, monitor performance metrics, and implement corrective measures as … necessary. Lead the end-to-end product lifecycle from ideation and development through to launch, performance optimisation, and eventual retirement. Continuously monitor market trends, regulatory changes, and competitor activities to identify opportunities and mitigate risks. Leverage industry insights and customer feedback to refine product offerings and enhance market More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

(Senior)PostgreSQL and Oracle Database Administrator (DBA) d/f/m

London, United Kingdom
Hybrid / WFH Options
RWE AG
ideal candidate will be familiar with Terraform, DevOps practices, and the use of RMAN for Oracle database backups. This position involves database design, deployment, optimisation, automation, performance tuning, and incident resolution. Collaboration with developers, architects, and DevOps teams is essential to ensure that data infrastructure meets business needs … databases. Integrate database management into CI/CD pipelines using tools like GitLab CI or GitHub Actions. Use CloudWatch or other tools to monitor performance, database health, and availability. Collaborate with DevOps, Security, and Engineering teams to align database strategies with overall platform architecture. Troubleshoot complex incidents and optimise … PostgreSQL. Experience with Aurora PostgreSQL or Oracle Goldengate. Proficiency in SQL, PL/SQL, and understanding of PostgreSQL functions and extensions. Skills in SQL performance optimisation including indexing strategies, execution plan analysis, and understanding database internals. Exposure to automation tools like Terraform, CloudFormation, Ansible, or scripting in Python More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Consultant - Database Engineer

City of London, Greater London, UK
Hybrid / WFH Options
Delta Capita
sector. The ideal candidate will have extensive experience in database engineering, data warehousing, and consulting, with a strong focus on optimising data systems for performance, security, and scalability. Key Responsibilities: Design and Architecture : Lead the design and architecture of robust, scalable, and secure data warehouse solutions tailored to wealth … to support business intelligence and analytics. ETL Processes : Design, implement, and optimise ETL (Extract, Transform, Load) processes to ensure efficient data integration and transformation. Performance Optimisation : Monitor and optimise database performance, including query tuning, indexing, and caching strategies. Data Security : Implement stringent data security measures, including access More ❯
Posted:

AI Engineer

Central London, London, United Kingdom
167 Solutions Ltd
and model training infrastructure, ensuring scalability and efficiency. ? Data Governance: Implement and enforce data quality, integrity, and governance standards across all data engineering processes. ? Performance Optimisation: Monitor and optimise the performance of AI models and data pipelines, implementing best practices in observability and monitoring. ? Cross-Functional Collaboration More ❯
Employment Type: Permanent
Posted:

Front End Engineer

Bournemouth, South West
Vitality
needs internally. Champion user research to focus on all users. Prioritise and define approaches to understand the user story, guiding others in doing so. Performance optimisation: Show an awareness of the principles of web performance and how poor performance can negatively affect user experience. Support activities … ensure our codebase and output is compliant So, what's in it for you? Bonus Schemes - A bonus that regularly rewards you for your performance A pension of up to 12%- We will match your contributions up to 6% of your salary Our award-winning Vitality health insurance - With More ❯
Employment Type: Permanent
Salary: Competitive + Bonus + Benefits
Posted:

Front End Engineer

Bournemouth, Dorset, United Kingdom
慨正橡扯
needs internally. Champion user research to focus on all users. Prioritise and define approaches to understand the user story, guiding others in doing so. Performance optimisation: Show an awareness of the principles of web performance and how poor performance can negatively affect user experience. Support activities … ensure our codebase and output is compliant. So, what's in it for you? Bonus Schemes - A bonus that regularly rewards you for your performance A pension of up to 12%- We will match your contributions up to 6% of your salary Our award-winning Vitality health insurance - With More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Lead .Net Developer

Manchester, Lancashire, United Kingdom
Betfred Group
the correct approach and to the standards defined. Job Duties Lead the design, development, and maintenance of software applications ensuring quality, efficiency and maximising performance and minimising technical debt. Feature development and evaluation of the tooling processes both in development and deployment alongside the Platform Engineering team. Write clean … team An interest in troubleshooting and problem-solving Participation in releases and/or out-of-hours on-call availability as needed Expertise in performance optimisation Experience in the gaming industry is a significant advantage Working with, and supporting, remote developers (working on the same product) Working with More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Full Stack Software Engineer

Northamptonshire, England, United Kingdom
Hybrid / WFH Options
Barclays
well-defined features. Feature Ownership: Take end-to-end responsibility for smaller enhancements or contribute to larger team-led initiatives including mobile UI and performance optimizations. Testing & CI/CD: Write and maintain automated tests using tools like Cucumber and Selenium. Contribute to deployment pipelines using Jira, Bitbucket, Maven More ❯
Posted:

Senior Software Engineer, Fixed income - FTA, UK

London, United Kingdom
T. Rowe Price
Typescript, Kotlin Strong knowledge of data orchestration technologies - e.g., Apache Airflow, Dagster, AWS Step Functions Understanding of ETL/ELT workflows, data modeling, and performance optimization for both batch and real-time processing. Commitment to Diversity, Equity, and Inclusion: At T. Rowe Price, our associates are our greatest asset. More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Technical Engineer

Belfast, City of Belfast, County Antrim, United Kingdom
Hybrid / WFH Options
Cala Consulting
Jenkins, GitLab, Bitbucket Ensure efficient and reliable build, test, and deployment processes. Collaborate with development teams to improve CI/CD practices. Monitoring and Performance Optimisation: Implement monitoring tools and practices to ensure the reliability and performance of infrastructure and applications. Identify and resolve performance bottlenecks More ❯
Employment Type: Permanent
Salary: £40000 - £60000/annum pension, share options, health
Posted:

Senior Front End Developer

London, UK
IQUW Group
to improve team capabilities. Architectural Decision-Making - Contribute to and influence front-end architecture decisions, including framework selection, design patterns, and scalability considerations. Advanced Performance Optimisation - Lead efforts to optimise application performance by profiling JavaScript execution, optimising rendering, reducing memory leaks, and implementing advanced techniques like server More ❯
Posted:

Senior Website Developer

Birmingham, Staffordshire, United Kingdom
Zozaza
ensure that our websites are fast, responsive, and high-performing. Key Responsibilities: Lead the full-stack development of complex websites, ensuring optimal user experience, performance, and scalability. Design and implement website architecture, functionality, and integrations with other platforms. Collaborate with design and marketing teams to ensure the website aligns … with brand requirements and provides a user-friendly experience. Optimise website speed and performance for various devices and browsers. Troubleshoot and resolve technical issues, ensuring seamless website functionality. Stay updated with the latest trends and best practices in website development and digital technologies. Regularly maintain and update websites to … knowledge of website architecture, coding practices, and best development methodologies. Strong experience with responsive design and ensuring websites are mobile-friendly. Experience with website performance optimisation and debugging. Strong problem-solving skills and the ability to adapt to new challenges. Excellent communication skills and the ability to work More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Website Developer

Birmingham, UK
Zozaza
ensure that our websites are fast, responsive, and high-performing. Key Responsibilities: Lead the full-stack development of complex websites, ensuring optimal user experience, performance, and scalability. Design and implement website architecture, functionality, and integrations with other platforms. Collaborate with design and marketing teams to ensure the website aligns … with brand requirements and provides a user-friendly experience. Optimise website speed and performance for various devices and browsers. Troubleshoot and resolve technical issues, ensuring seamless website functionality. Stay updated with the latest trends and best practices in website development and digital technologies. Regularly maintain and update websites to … knowledge of website architecture, coding practices, and best development methodologies. Strong experience with responsive design and ensuring websites are mobile-friendly. Experience with website performance optimisation and debugging. Strong problem-solving skills and the ability to adapt to new challenges. Excellent communication skills and the ability to work More ❯
Posted:
Performance Optimisation
10th Percentile
£49,140
25th Percentile
£53,875
Median
£69,315
75th Percentile
£82,500
90th Percentile
£88,000