1 to 25 of 28 Performance Optimisation Jobs in Wales

is a great role for a senior professional who enjoys a high level of visibility and thrives on great business impact. The features and performance improvements you implement directly impact millions of users every day. This is a great role for an experienced professional who has innovative ideas for … cloud-based technology, such as AWS and GCP. Experience of building large scale and low latency distributed systems. Solid understanding of algorithms, data structures, performance optimisation techniques, object-oriented programming. Experience with distributed caching, SQL/NoSQL and other databases. Experience of container-based orchestration, such as Docker More ❯

in GitHub Actions, Jenkins, and GitOps workflows. Strong knowledge of advanced DevOps concepts, including progressive delivery strategies (blue/green, canary), resilience engineering, and performance optimisation. Deep understanding of cloud security, governance, and compliance, with the ability to define and implement scalable security frameworks. Proven ability to drive cross More ❯

in GitHub Actions, Jenkins, and GitOps workflows. Strong knowledge of advanced DevOps concepts, including progressive delivery strategies (blue/green, canary), resilience engineering, and performance optimisation. Deep understanding of cloud security, governance, and compliance, with the ability to define and implement scalable security frameworks. Proven ability to drive cross More ❯

engineers to reach a common understanding of acceptance criteria, the code base and test coverage 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 More ❯

of experience building large scale and low latency distributed systems Command of Java, C++ or Go/Golang Solid understanding of algorithms, data structures, performance optimization techniques, object-oriented programming, multi-threading, and real-time programming Experience with distributed caching, SQL/NO SQL, and other databases is a More ❯

have 10+ years of experience building large scale and low latency distributed systems Command of Java or C++ Solid understanding of algorithms, data structures, performance optimization techniques, object-oriented programming, multi-threading, and real-time programming Experience with distributed caching, SQL/NO SQL, and other databases is a More ❯

control best practices Comfortable integrating APIs and using tools like Composer and NPM Experience working with (and improving) legacy codebases Strong problem-solving and performance optimisation skills Experience leading projects and mentoring developers Good communicator and a team player Strong attention to detail with a passion for writing More ❯

with designers and backend engineers to deliver robust, user-friendly solutions Write clean, maintainable, well-tested code following best practices Address and resolve bugs, performance bottlenecks, and edge cases Write or adapt native modules when required for specific platform needs Participate in code reviews, daily stand-ups, sprint planning … record of delivering high-quality mobile applications to production Experience working in a Scrum/Agile team environment Familiarity with mobile testing, debugging, and performance optimisation tools Clear understanding of app publishing processes on both App Store and Play Store A collaborative mindset, strong communication skills, and the … World Sports & Affiliate Partner Products Subsidised On-Site Bistro - Serving Freshly Prepared Food Every Day for Breakfast & Lunch Employee Recognition - Bonus & Commission Schemes and Performance, Length of Service & Life Event Rewards Employee Support - Saving Schemes, Legal & Financial Advice, Parental Guidance OUR VALUES: Go above and beyond: Get stuck in More ❯

React, Node.JS and Next.JS Line Manage 4-6 Frontend Developers in a matrix managed structure 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 What the successful More ❯

React, Node.JS and Next.JS Line Manage 4-6 Frontend Developers in a matrix managed structure 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 What the successful More ❯

development best practices. Comfortable using scripting languages for automation and tooling. Strong grasp of software architecture principles, with an emphasis on maintainability, scalability, and performance optimization. Understanding of container and orchestration tools such as Docker and Kubernetes. Excellent interpersonal and communication abilities, enabling effective teamwork and collaboration. Strong knowledge More ❯

deliver using practices that align with your preferred ways of working Data Driven: Utilise rich logs, metrics, and data to monitor and improve system performance, cost, security & reliability Culture: Enhancing a diverse engineering culture by taking part in various technical catch ups, working groups and all hands Experience: Enrich … optimised Cloud platforms (preferably Azure) from the ground up, following well architected principles Solid understanding of platform and reliability engineering approaches (SRE), including observability, performance optimisation, capturing analytics and security best practices Experience implementing Service Level Objectives and using them to drive error budgets, risk management and alerting More ❯

security considerations. Evaluate, select, and implement VDI technologies (e.g., Citrix Virtual Apps and Desktops, VMware Horizon, Microsoft Azure Virtual Desktop). Ensure high availability, performance optimization, and disaster recovery of VDI environments. Collaborate with IT security, network, and application teams to ensure seamless integration and compliance. Provide technical leadership 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 ❯

Quatro is one of the fastest growing performance and training leotard brands in the world. We are a global business with three office locations in the UK, France, and USA. A trusted brand by gymnastics federations across Switzerland, Finland, Gymnastics Ireland, South Africa, and more. With over … Integrate third-party apps and APIs to extend Shopify store functionality. Troubleshoot and resolve technical issues related to Shopify and eCommerce operations. Ensure website performance, security, and mobile responsiveness. Work closely with designers and marketing teams to align store aesthetics and functionality with branding and conversion goals. Optimise website … speed, performance, and SEO best practices. Provide ongoing support, updates, and maintenance for Shopify websites. Stay up-to-date with the latest Shopify updates, eCommerce trends, and best practices. Required Skills and Qualifications: Proven experience as a Shopify Developer with a portfolio of Shopify-based projects. Experience in custom More ❯

based environment. As a member of our team, you will contribute to the full lifecycle of our data persistence layer, from schema design and performance tuning to ensuring robust replication, disaster recovery, and seamless integration within our cloud-native microservice ecosystem. Responsibilities: Design & Develop Database Solutions: Architect, design, and … implement highly optimized relational (e.g., MySQL, PostgreSQL, AWS Aurora, SQL Server) and NoSQL (e.g., MongoDB, DynamoDB, Redis) database schemas, ensuring data integrity, performance, and scalability for microservices. Performance Optimization & Tuning: Proactively analyze and optimize complex queries, implement efficient indexing strategies, and manage partitioning/sharding to ensure peak … database performance and handle high throughput. Reliability & Disaster Recovery: Design, implement, and maintain robust backup, disaster recovery, and high-availability solutions, including replication (master-slave/multi-master) and failover configurations, to ensure data durability and system uptime. Cloud Database Management: Deploy, configure, and manage database instances within cloud More ❯

deliver highly user focused and successful digital services ensuring governance standards are adhered toAssist in implementing toolkits and APIs for purposes such as integration, performance optimisation, security and scalability.Person specificationEssential criteria Essential Experience Experience in delivering technical solutionsExperience with modern delivery models such as Scrum and AgileUnderstanding of More ❯

ensure our solutions comply with the highest industry standards. You'll be expected to contribute to architectural decisions, mentor peers, and ensure the robustness, performance, and maintainability of our mobile codebases. Tasks Key responsibilities and expectations SDK Development: Architect, develop, and maintain robust SDKs for the Android platform. Ensure … SDK compatibility with various Android versions and devices. Deliver clear, well-documented APIs for external developer use Implement complex features and drive performance optimisations. Code Quality and Standards Write clean, maintainable, and well-documented code. Review code, enforce quality standards, and provide technical feedback. Contribute to improving CI/… and Design Contribute to architectural decisions and the adoption of scalable design patterns. Translate complex requirements into elegant technical solutions with high attention to performance and security Collaboration Collaborate cross-functionally with backend services, security, and UX teams Contribute to improving CI/CD pipelines and development workflows Technical More ❯

highly user focused and successful digital services ensuring governance standards are adhered to Assist in implementing toolkits and APIs for purposes such as integration, performance optimisation, security and scalability. Essential criteria Essential Experience Experience in delivering technical solutions Experience with modern delivery models such as Scrum and Agile More ❯

of Power Platform solutions. Implement governance frameworks and enterprise security standards. Integrate Azure AI Foundry, Cognitive Services, and OpenAI models. Ensure compliance, security, and performance optimization. Technical Leadership & Delivery Lead technical discovery sessions and solution design. Provide technical oversight for Power Platform presales and projects. Develop custom connectors, APIs More ❯

both application logic and AI/LLM components Proficiency in React.js, Next.js , tRPC , TypeScript , and Prisma Strong understanding of MySQL , including schema design and performance optimization Practical experience integrating with LLMs, including prompt design and API management Familiarity with orchestration tools such as LangChain or similar Ability to learn More ❯

both application logic and AI/LLM components Proficiency in React.js, Next.js , tRPC , TypeScript , and Prisma Strong understanding of MySQL , including schema design and performance optimization Practical experience integrating with LLMs, including prompt design and API management Familiarity with orchestration tools such as LangChain or similar Ability to learn More ❯

Stack Software Developer - for an exciting cutting edge Technology company in Cardiff. The Opportunity: You will play a critical role in ensuring the continued performance, security, and scalability of the platform, and you'll own the system’s evolution, from bug fixes and feature development to proactively identifying innovations … operational and leadership teams to translate business requirements into system developments. Key Responsibilities: System Maintenance and Enhancement: ● Manage day-to-day technical support and performance optimisation. ● Deliver enhancements and improvements from a prioritised backlog. ● Execute system upgrades to maintain compliance and address vulnerabilities. Risk Mitigation: ● Implement and maintain robust More ❯

and maintain scalable SaaS infrastructure on AWS. Drive the technical strategy to scale the platform as user demand grows, making informed decisions on infrastructure, performance optimisations, and system design. Collaborate with senior leadership, sales, and operations teams to translate business requirements into technical solutions, ensuring alignment with commercial goals. … in line with Cyber Essentials Plus and ISO27001. Mentor and guide the technical team, fostering a culture of innovation, continuous learning, and accountability. Analyse performance metrics and make data-driven decisions to improve platform performance, stability, and cost-efficiency. Engage with stakeholders (internal and external) to communicate technical More ❯