51 to 75 of 249 Performance Optimisation Jobs in the South East

Overview: My client is a specialist engineering company that builds white label video streaming applications for global media brands. They focus on delivering high performance, scalable solutions across Roku, web, and mobile platforms. They are now looking for an experienced Roku Developer to join their team and work across … multiple branded streaming apps. This person will take the lead on feature development, performance optimisation, and ensuring alignment with Roku certification standards. Key Responsibilities: Build and deploy Roku applications using BrightScript and SceneGraph Configure and launch white-label apps for 18+ video streaming clients Lead development of major … features including templated views, DRM, and EPG Integrate ad tech (Roku Ad Framework) and analytics (Google Analytics) Drive performance enhancements, reducing load time, memory use, and CPU usage Required Skills: Strong experience with BrightScript and SceneGraph Track record of Roku app development and deployment Familiarity with Roku Advertising Framework More ❯

Overview: My client is a specialist engineering company that builds white label video streaming applications for global media brands. They focus on delivering high performance, scalable solutions across Roku, web, and mobile platforms. They are now looking for an experienced Roku Developer to join their team and work across … multiple branded streaming apps. This person will take the lead on feature development, performance optimisation, and ensuring alignment with Roku certification standards. Key Responsibilities: Build and deploy Roku applications using BrightScript and SceneGraph Configure and launch white-label apps for 18+ video streaming clients Lead development of major … features including templated views, DRM, and EPG Integrate ad tech (Roku Ad Framework) and analytics (Google Analytics) Drive performance enhancements, reducing load time, memory use, and CPU usage Required Skills: Strong experience with BrightScript and SceneGraph Track record of Roku app development and deployment Familiarity with Roku Advertising Framework More ❯

Overview: My client is a specialist engineering company that builds white label video streaming applications for global media brands. They focus on delivering high performance, scalable solutions across Roku, web, and mobile platforms. They are now looking for an experienced Roku Developer to join their team and work across … multiple branded streaming apps. This person will take the lead on feature development, performance optimisation, and ensuring alignment with Roku certification standards. Key Responsibilities: Build and deploy Roku applications using BrightScript and SceneGraph Configure and launch white-label apps for 18+ video streaming clients Lead development of major … features including templated views, DRM, and EPG Integrate ad tech (Roku Ad Framework) and analytics (Google Analytics) Drive performance enhancements, reducing load time, memory use, and CPU usage Required Skills: Strong experience with BrightScript and SceneGraph Track record of Roku app development and deployment Familiarity with Roku Advertising Framework More ❯

Overview: My client is a specialist engineering company that builds white label video streaming applications for global media brands. They focus on delivering high performance, scalable solutions across Roku, web, and mobile platforms. They are now looking for an experienced Roku Developer to join their team and work across … multiple branded streaming apps. This person will take the lead on feature development, performance optimisation, and ensuring alignment with Roku certification standards. Key Responsibilities: Build and deploy Roku applications using BrightScript and SceneGraph Configure and launch white-label apps for 18+ video streaming clients Lead development of major … features including templated views, DRM, and EPG Integrate ad tech (Roku Ad Framework) and analytics (Google Analytics) Drive performance enhancements, reducing load time, memory use, and CPU usage Required Skills: Strong experience with BrightScript and SceneGraph Track record of Roku app development and deployment Familiarity with Roku Advertising Framework More ❯

requests per day, collaborating with cross-functional teams to design systems that meet business and regulatory requirements. You'll seek to continuously improve system performance and scalability, implement automated testing, CI/CD pipelines and document system workflows, architecture and design decisions. Location/WFH: You can work from … the time but must be commutable to the London office. About you: You have strong Java development experience including concurrency, garbage collection, low level performance optimisation, data structures and memory efficient design patterns You have experience with low latency systems, particularly OMS (Order Management Systems), EMS (Execution Management More ❯

for Fixed Income eTrading including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support real-time trading and analytics. Key Responsibilities Design and develop responsive, low-latency front-end trading systems using React. Build dashboards … data and trade execution. Collaborate with traders, quants, and back-end engineers to deliver seamless UI experiences. Contribute to architectural decisions and front-end performance tuning. Required Skills & Experience Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering front-end applications in electronic trading environments Strong understanding of … performance optimisation and low-latency UI design Experience with real-time data technologies (WebSockets, FIX, etc.) Familiarity with containerized front-end platforms such as OpenFin is a plus Prior exposure to Fixed Income products (Rates, Credit, Bonds) or other capital markets Experience in data visualisation, charting and grid More ❯

refine user experience. Develop prototypes and storyboards to capture user requirements and iterate on design concepts. Ensure software robustness through rigorous testing, validation, and performance optimisation. Collaborate with cross-functional teams, including autonomy and hardware engineers, to integrate software solutions. Document and maintain codebases with a focus on readability More ❯

Contract Development : Design, develop, and deploy secure and efficient smart contracts using Solidity . Blockchain Integration : Integrate blockchain technology into web and backend systems. Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with cross-functional teams including product managers, designers, and other developers More ❯

Contract Development : Design, develop, and deploy secure and efficient smart contracts using Solidity . Blockchain Integration : Integrate blockchain technology into web and backend systems. Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with cross-functional teams including product managers, designers, and other developers More ❯

models, and A/B testing frameworks . Deploy and monitor applications using AWS (EC2, S3, CloudFormation, ECS) . Ensure data security, compliance, and performance optimization. Requirements: 4+ years of experience in software engineering, with a focus on backend development. Experience building analytics and marketing tools (e.g., dashboards, tracking More ❯

Contract Development : Design, develop, and deploy secure and efficient smart contracts using Solidity . Blockchain Integration : Integrate blockchain technology into web and backend systems. Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with cross-functional teams including product managers, designers, and other developers More ❯

Contract Development : Design, develop, and deploy secure and efficient smart contracts using Solidity . Blockchain Integration : Integrate blockchain technology into web and backend systems. Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with cross-functional teams including product managers, designers, and other developers More ❯

Contract Development : Design, develop, and deploy secure and efficient smart contracts using Solidity . Blockchain Integration : Integrate blockchain technology into web and backend systems. Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with cross-functional teams including product managers, designers, and other developers More ❯

Contract Development : Design, develop, and deploy secure and efficient smart contracts using Solidity . Blockchain Integration : Integrate blockchain technology into web and backend systems. Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with cross-functional teams including product managers, designers, and other developers More ❯

rules, and best practices. Familiarity with Salesforce DevOps tools (Gearset, Copado, SFDX, CI/CD pipelines). Strong knowledge of data modeling, SOQL, and performance optimization. Salesforce certifications such as Salesforce Platform Developer I & II (preferred). Offering up to £80k plus strong training and development, a collaborative culture More ❯

and best practices . Familiarity with Salesforce DevOps tools (Gearset, Copado, SFDX, CI/CD pipelines). Strong knowledge of data modeling, SOQL, and performance optimization . Salesforce certifications, such as: Salesforce Platform Developer I & II (preferred) Offering up to £80k + strong training and development, collaborative culture More ❯

dinners at customer restaurants * Proficient in TypeScript and NodeJS * Strong experience with containerised and serverless infrastructure (e.g. ECS, Lambda) * Confident working with GraphQL APIs , performance optimisation, and data design * Expertise in relational databases , especially PostgreSQL , including performance tuning * Exposure to or interest in AI technologies, including personal More ❯

grow exponentially over the next few years. This Network Infrastructure Manager role will shape the enterprise-wide network strategy and execution across network architecture, performance, and security. This is a unique opportunity to define the network vision, build out a new best-in-class network team, and lead the … implementation of secure connectivity, high-performance LAN, WAN, Wi-Fi, SD-WAN and cloud infrastructure, across multiple UK locations. Key Skills & Experience Required: Extensive experience at a senior-level in designing and leading network infrastructure and enterprise-scale connectivity Proven experience in building enterprise networks and managed multiple sites … Azure or AWS is required to cross train into Oracle OCI. Network architecture and documentation experience Strong background in disaster recovery, high-availability, and performance optimisation Strong leadership qualities with a track record of building and scaling technical teams Familiarity with Infrastructure as Code (IaC) and automation tools More ❯

on best practices. Drive adoption of modern architecture principles like Microservices , Event-Driven Architecture , CQRS , and SAGA patterns . Define and enforce coding standards, performance tuning, and best practices. Select appropriate AWS services and design cloud-native architectures with cost, scalability, and security in mind. Conduct design and code … plus. Experience with Infrastructure as Code (IaC) using Terraform or AWS CDK. Exposure to data streaming platforms like Kafka is a bonus. Background in performance optimization, scalability, and security best practices. Desired Skills: Knowledge of AI and Emerging Technologies (Good to have) Understanding of how AI capabilities can be More ❯

functionality, and alignment with the brand's strategic objectives. Reporting to the Head of Digital, this role is pivotal in maintaining and enhancing the performance of bremont.com across all locales, driving growth, and supporting key CRM and digital initiatives. The Website & Online Merchandising Manager will oversee daily operations of … operations of bremont.com, including building, maintaining, and optimising product pages, collection pages, campaign pages, and other landing pages to support marketing and sales objectives. Performance Optimisation: Manage and optimise D2C/cart functionality, on-site search, and customer account functionality to improve UX and conversion rates. Email Marketing … deploying, and maintaining email campaigns and automated/triggered email workflows. Cross-Functional Collaboration: Partner with internal teams and external agencies to ensure website performance aligns with broader marketing and business strategies. Other Tasks: UX Development: Collaborate on UX research and propose improvements to enhance website usability and customer More ❯

functionality, and alignment with the brand's strategic objectives. Reporting to the Head of Digital, this role is pivotal in maintaining and enhancing the performance of bremont.com across all locales, driving growth, and supporting key CRM and digital initiatives. The Website & Online Merchandising Manager will oversee daily operations of … operations of bremont.com, including building, maintaining, and optimising product pages, collection pages, campaign pages, and other landing pages to support marketing and sales objectives. Performance Optimisation: Manage and optimise D2C/cart functionality, on-site search, and customer account functionality to improve UX and conversion rates. Email Marketing … deploying, and maintaining email campaigns and automated/triggered email workflows. Cross-Functional Collaboration: Partner with internal teams and external agencies to ensure website performance aligns with broader marketing and business strategies. Other Tasks: UX Development: Collaborate on UX research and propose improvements to enhance website usability and customer More ❯

functionality, and alignment with the brand's strategic objectives. Reporting to the Head of Digital, this role is pivotal in maintaining and enhancing the performance of bremont.com across all locales, driving growth, and supporting key CRM and digital initiatives. The Website & Online Merchandising Manager will oversee daily operations of … operations of bremont.com, including building, maintaining, and optimising product pages, collection pages, campaign pages, and other landing pages to support marketing and sales objectives. Performance Optimisation: Manage and optimise D2C/cart functionality, on-site search, and customer account functionality to improve UX and conversion rates. Email Marketing … deploying, and maintaining email campaigns and automated/triggered email workflows. Cross-Functional Collaboration: Partner with internal teams and external agencies to ensure website performance aligns with broader marketing and business strategies. Other Tasks: UX Development: Collaborate on UX research and propose improvements to enhance website usability and customer More ❯

stakeholders Facilitate technical workshops and requirements gathering sessions Provide expertise on database design best practices and data governance Support data quality initiatives and system optimisation projects Contribute to enterprise data strategy and architecture decisions Essential Requirements Database & Technical Experience 8-12 years of Business Analysis experience with minimum … on database/data systems Expert knowledge of relational database design, normalisation, and data modelling principles Hands-on experience with SQL query writing, database performance optimisation, and data analysis Proven track record of conducting complex systems impact assessments Experience with ETL processes, data warehousing concepts, and reporting system More ❯

align with management expectations. Excellent Communication Clearly document front-end structures, communicate changes, and provide support for technical issues. Detail-Oriented Anticipate growth and performance needs while ensuring compliance with web development best practices. Responsibilities Technical Excellence Develop and maintain scalable, high-performance front-end applications using JavaScript … Node, or Next). Work closely with designers, product managers, and back-end developers to implement seamless user experiences. Ensure applications are optimized for performance, accessibility, and SEO. Build and maintain reusable components, ensuring consistency across applications. Implement responsive designs that work across different devices and screen sizes. Troubleshoot … debug, and optimize front-end code for performance and scalability. Stay up to date with best practices in modern front-end development, UX/UI trends, and web performance optimization. Contribute to system documentation, including design specifications and unit testing. Operational Excellence Demonstrate professionalism in all interactions with More ❯

come first What you bring: 2+ years of hands-on experience with large relational databases (500K+ customers) Deep knowledge of relational database concepts and performance optimisation Strong SQL and Python skills Experience designing in cloud environments — ideally AWS A collaborative mindset and the ability to translate business needs More ❯