Performance Optimisation Jobs in London

1 to 25 of 230 Performance Optimisation Jobs in London

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:

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 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:

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:

Digital Media Strategist

London Area, United Kingdom
Hybrid / WFH Options
Pivotal London
channels. A high-impact, strategic role for a commercially-minded media expert. The Opportunity We are hiring a Digital Media Strategist to drive the optimisation of paid media performance across a multi-brand, multi-market environment. Managing £12–13 million in annual spend across 25+ countries and 4+ … responsible for maximising ROI, resolving inefficiencies, and supporting growth across a portfolio of premium travel and lifestyle brands. You will analyse spend and channel performance, allocate budgets intelligently, and create performance forecasts to drive strategic decision-making. A particular focus will be on Paid Search, where you’ll … e.g., internal competition in paid search auctions). Build and implement intelligent bidding strategies at the keyword level across brands and channels. Forecast seasonal performance and model future spend scenarios to drive commercial planning. Monitor and report on channel effectiveness, ensuring budgets are allocated to maximise ROI and revenue More ❯
Posted:

Performance Marketing Manager

London, United Kingdom
Hybrid / WFH Options
Carwow Group
annual web content reach over 350million. And we're a long way from done! PAID SEARCH AT CARWOW Join a focused and results-oriented Performance Marketing team where paid search is a core pillar of Carwow's profitable success. We are a collaborative group that thrives on smart prioritisation … and a proactive approach to testing new performance channels. Our focus is on maximising impact and efficiency, working closely across markets and products to achieve ambitious goals. We value innovation and constantly seek opportunities to refine our processes and leverage automation. If you're driven by results and want … to make a significant contribution to a successful business, this is an excellent opportunity. YOUR MISSION As Performance Marketing Manager, your core mission is to maximise carwow's growth through the strategic and expert management of our paid search, Performance Max, and Vehicle Ads. You'll be responsible More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Developer - Freelance

london, south east england, united kingdom
Picture Production Company
hardware options and cloud platforms (AWS, Azure, or Google Cloud). Knowledge of containerization technologies (Docker, Kubernetes). Understanding of microservices architecture. Experience with performance optimization and scalability. Contributions to open-source projects. Strong proficiency in at least one major programming language (e.g., Python, Java, C++, JavaScript) Experience with More ❯
Posted:

Senior Software Developer (Short-Term Contract)

London Area, United Kingdom
Picture Production Company
hardware options and cloud platforms (AWS, Azure, or Google Cloud). Knowledge of containerization technologies (Docker, Kubernetes). Understanding of microservices architecture. Experience with performance optimization and scalability. Contributions to open-source projects. 5+ years of professional software development experience. Strong proficiency in at least one major programming language More ❯
Posted:

Senior Software Developer (Short-Term Contract)

london, south east england, united kingdom
Picture Production Company
hardware options and cloud platforms (AWS, Azure, or Google Cloud). Knowledge of containerization technologies (Docker, Kubernetes). Understanding of microservices architecture. Experience with performance optimization and scalability. Contributions to open-source projects. 5+ years of professional software development experience. Strong proficiency in at least one major programming language More ❯
Posted:

Wordpress Developer

London Area, United Kingdom
Hybrid / WFH Options
The Profs
of front-end updates and enhancements for our websites. You will work closely with cross-functional teams to deliver visually appealing, highly functional, and performance-optimised platforms that delight our users. Key Responsibilities Front-End Development : Implement new features, components, and layouts using WordPress, HTML5, CSS3, and JavaScript. Content … Update and maintain website content in alignment with branding and SEO strategies. Responsive Design : Ensure a flawless user experience across all devices and browsers. Performance Optimisation : Optimise website performance, including loading speed, code structure, and accessibility. Collaboration : Work with team members to enhance various aspects of UX … customising WordPress themes or resolving back-end issues. Knowledge of version control systems (e.g., Git). Understanding of Web Core Vitals and Google’s performance metrics. Ability to develop custom WordPress themes and child themes. Qualifications and Experience: Proven track record as a WordPress developer, with a portfolio demonstrating 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:

Principal Engineer (Fullstack)

London, United Kingdom
AKQA Media
with Web Rendering approaches such as SSG, ISR, SSR, CSR and hybrid approaches. Experience developing PWAs, Web workers and Web APIs. Experience in Webapp performance optimisation, scalability, profiling and testing. Data Engineering & Architecture Familiarity with TensorFlow, PyTorch, or other relevant AI/ML frameworks Security and compliance design More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Ecommerce Product Manager

London, United Kingdom
Hybrid / WFH Options
Derek Rose
Office About the Role: We are seeking a commercially driven and technically adept Ecommerce Product Manager to own our Shopify platform, UX, and website optimisation strategy, as well as manage our digital roadmap. This role will oversee the performance and evolution of our ecommerce site, working closely with … improvements in customer experience and conversion. The ideal candidate will be a Shopify expert with a strong understanding of DTC ecommerce best practices, website performance optimisation, and process efficiencies. Key Responsibilities: Ecommerce Platform & Development Working with the Head of DTC, define, prioritise, and execute the ecommerce development roadmap. … ensuring they align with business objectives and customer needs. Maintain a deep understanding of the Shopify ecosystem, apps, and integrations to optimise performance. Website Optimisation & Customer Experience Identify and address customer friction points to improve website usability and performance. Take practical, insight-driven approach to website improvements. Use qualitative More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior DevOps Engineer (AWS)

London Area, United Kingdom
Hybrid / WFH Options
CloudSeekers
opportunity has arisen for an experienced Systems Engineer with a strong background in cloud platforms, particularly AWS, to drive technical innovation, ensure robust system performance, and maintain the highest levels of security. This is a critical role requiring a deep understanding of cloud technologies, cloud-native architecture design, and … DevOps best practices. Hands-on experience with Cloudflare, a focus on security, and a proactive approach to optimisation are essential. Key Responsibilities Cloud Engineering : Design, implement, and manage secure, scalable, and cost-effective AWS cloud infrastructure. DevOps and Automation : Champion a DevOps culture and streamline CI/CD processes … such as Docker and Kubernetes. Security and Compliance: Implement strong security frameworks, maintain industry best practices, and ensure regulatory compliance (GDPR, ISO 27001). Performance Optimisation: Monitor, assess, and optimise system performance, utilising Cloudflare to enhance security and speed. Migration and Modernisation: Lead migration projects, modernising legacy More ❯
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Technical Adoption Engineer (Data/Analytics/AI)

London Area, United Kingdom
Mind Detect
developing data models and ETL processes; to driving value through dashboards or business applications. Integrating AI tools and LLMs to unlock valuable insights, optimise performance, and automate business processes will also be a part of this role. Responsibilities Customer Engagement and Enablement: Act as a trusted advisor for named … transformation, and visualisation Develop and optimise data models, ETL processes, Workflows and dashboards within the platform Provide best practices for analytics pipelines, integration strategies, performance optimisation and data governance and AI readiness Leverage AI capabilities within the platform and integrate external AI tools and LLMs to enhance data More ❯
Posted:

Technical Adoption Engineer (Data/Analytics/AI)

london, south east england, united kingdom
Mind Detect
developing data models and ETL processes; to driving value through dashboards or business applications. Integrating AI tools and LLMs to unlock valuable insights, optimise performance, and automate business processes will also be a part of this role. Responsibilities Customer Engagement and Enablement: Act as a trusted advisor for named … transformation, and visualisation Develop and optimise data models, ETL processes, Workflows and dashboards within the platform Provide best practices for analytics pipelines, integration strategies, performance optimisation and data governance and AI readiness Leverage AI capabilities within the platform and integrate external AI tools and LLMs to enhance data More ❯
Posted:

Technical Adoption Consultant – EMEA

london, south east england, united kingdom
Mind Detect
developing data models and ETL processes; to driving value through dashboards or business applications. Integrating AI tools and LLMs to unlock valuable insights, optimise performance, and automate business processes will also be a part of this role. Responsibilities Customer Engagement and Enablement: Act as a trusted advisor for named … transformation, and visualisation Develop and optimise data models, ETL processes, Workflows and dashboards within the platform Provide best practices for analytics pipelines, integration strategies, performance optimisation and data governance and AI readiness Leverage AI capabilities within the platform and integrate external AI tools and LLMs to enhance data More ❯
Posted:

Senior Software Engineer - Remote

City of London, London, United Kingdom
Hybrid / WFH Options
Birchwell Associates Ltd
is a plus). Experience working with Heroku , with knowledge of AWS, GCP, or equivalent cloud providers . Solid understanding of SQL databases and performance optimization. Proficiency in software architecture best practices, design patterns, and scalable system design . Ability to work autonomously , take initiative, and thrive in a More ❯
Employment Type: Permanent
Salary: £55,000
Posted:

Dynamics365 Developer

London, United Kingdom
LA International Computer Consultants Ltd
plugins and workflows using C# and .NET. * Implement business logic using custom plugins and real-time workflows. * Ensure best practices in exception handling and performance optimization. * JavaScript/TypeScript Customization: * Develop and maintain JavaScript-based client-side logic in Dynamics 365. * Enhance user interactions with form scripting and Ribbon More ❯
Employment Type: Contract
Posted:

Senior Software Engineer

London, United Kingdom
Ki Insurance
development. Role Responsibilities Lead Backend Development: Own and lead the development of critical backend components using C#, .NET Core, and related technologies, ensuring high performance, scalability, and maintainability. Technical Decision-Making: Make authoritative decisions on backend architecture, technology stack, and best practices, driving technical excellence within the team. Collaboration … services, with a strong understanding of microservices architecture. Database Management: Work with both NoSQL and relational databases, ensuring efficient data storage, retrieval, and management. Performance Optimisation: Continuously optimise backend code and system performance to meet the highest standards of efficiency and responsiveness. Security Practices: Implement and enforce More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Product Owner (Contract)

London, United Kingdom
Mindera
delivery timelines while remaining responsive to change. Ensure all implementations are robust, secure, and scalable with strong monitoring and alerting in place. Roadmap Planning & Performance Optimisation: Maintain a living roadmap that reflects business priorities, technical capabilities, and external trends. Use data to evaluate PSP and transaction performance - identifying areas for optimisation, A/B testing, or provider tuning. Forecast impacts of roadmap initiatives on key KPIs like authorisation rate, cost-per-transaction, and checkout conversion. Stakeholder & Vendor Engagement: Act as a central point of contact for payments across internal stakeholders (Engineering, Legal, Finance, Security, Customer … and Mobile, are at the core of what we do at Mindera. We partner with our clients, to understand their product and deliver high performance, resilient and scalable software systems that create an impact in their users and businesses across the world. You get to work with a bunch More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

UI developer Azure/React

London, England, United Kingdom
Henderson Scott
Collaborate in Agile teams and contribute to a wider technology platform. Work in a multi-pipeline DevOps environment (Azure DevOps). Review code, ensure performance optimisation, and maintain testing coverage. Present ideas clearly and lead technical discussions when needed. Essential skills: Proficiency in HTML, JavaScript, TypeScript. React, Next.js More ❯
Posted:

UI developer Azure/React

london, south east england, united kingdom
Henderson Scott
Collaborate in Agile teams and contribute to a wider technology platform. Work in a multi-pipeline DevOps environment (Azure DevOps). Review code, ensure performance optimisation, and maintain testing coverage. Present ideas clearly and lead technical discussions when needed. Essential skills: Proficiency in HTML, JavaScript, TypeScript. React, Next.js More ❯
Posted:

Senior Data Engineer

London, UK
Hybrid / WFH Options
Xcede
Implement ELT workflows to ingest, enrich, and publish data for analytics and AI/ML. Security & Compliance: Ensure data privacy, governance, and regulatory compliance. Performance Optimization: Tune queries and pipelines for cost-efficiency and speed. Monitoring & Observability: Integrate real-time monitoring to detect and resolve issues proactively. CI/ More ❯
Posted:
Performance Optimisation
London
10th Percentile
£50,000
25th Percentile
£53,000
Median
£72,500
75th Percentile
£97,500
90th Percentile
£119,250