1 to 25 of 52 Performance Optimisation Jobs in Wales

of modern software practices. This 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 complex problems and can translate … 3+ years of working with 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 and Kubernetes. Experience using infrastructure More ❯

database solutions in a microservices-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 … blueprints into robust, maintainable, and high-quality code, applying the latest best practices in software engineering. Required Skills/Experience: 6+ years in roles directly responsible for the availability, performance, and security of critical databases. Expertise in Database Technologies: Strong command of MySQL, PostgreSQL, AWS Aurora, SQL Server and experience with MongoDB, DynamoDB, or Redis, including schema design and More ❯

practices with hands-on expertise 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-functional technical initiatives, influence without More ❯

pipelines, and cloud infrastructure (AWS, Azure, or equivalent). Database & API Management: Design efficient PostgreSQL and MongoDB schemas and develop secure RESTful/GraphQL APIs for seamless data integration. Performance Optimisation Code Review & Quality Assurance Security Best Practices Skills and Experience: Experience with Directus or other headless CMS solutions. Strong understanding of RESTful & GraphQL APIs. Proven experience leading More ❯

technologies Work closely with test 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 problems, incidents, risks and issues More ❯

to set up their environments from test to release. You will analyze the specific situation and needs, providing documented guidelines for implementation. You will advise on security standards and performance optimization. You will design, develop, and oversee the implementation of solutions that improve the stability, scalability, availability, and latency of our product. At Backbase, we focus on providing solutions More ❯

Developer to join our e-commerce engineering team. You’ll work across multiple sites and systems, delivering robust, scalable solutions and contributing to continuous improvements in code quality, performance, and technical processes. You’ll work alongside other developers, QA, DevOps, and product stakeholders to shape high-quality e-commerce features that support business growth and customer satisfaction. What You … Bring Strong commercial experience with Magento 2 Open Source (Adobe Commerce experience is a bonus). Hands-on experience with Hyvä theme and a good understanding of modern frontend performance optimisation. Solid understanding of Magento architecture, including modules, plugins, observers, service contracts, and dependency injection. Experience writing unit and integration tests as part of your normal development process. Familiarity … CI/CD pipelines and modern DevOps workflows. Working knowledge of event-driven architecture and message queues, ideally RabbitMQ. Experience with profiling tools (e.g. Blackfire) for identifying and resolving performance bottlenecks. Comfortable working with Tailwind CSS and Alpine.js in Magento frontend development. Solid experience working in Agile teams, contributing to sprints, participating in ceremonies, and working collaboratively with product More ❯

Synapse. Cloud & DevOps: Manage deployments, CI/CD pipelines, and cloud infrastructure (AWS, Azure, or similar). Database & API Management: Design schemas and develop secure APIs for data integration. Performance Optimization, Code Review & Quality Assurance, Security Best Practices. Skills and Experience: Experience with Directus or other headless CMS solutions. Strong understanding of RESTful & GraphQL APIs. Leadership and mentoring experience More ❯

for a Staff Software Engineer to take on a leading role within our Magento 2 development team. You'll be a key figure in shaping the architecture, ensuring high performance across multiple websites, and guiding a skilled team of engineers. If you have deep Magento experience, a passion for clean code, and thrive in a fast-paced e-commerce … multiple web stores and application instances in a high-volume e-commerce environment. Set and maintain technical standards, conduct architectural reviews, and ensure best practices across the codebase. Drive performance improvements across frontend and backend with a focus on scalability, speed, and resilience. Support the delivery of business-critical features while maintaining high-quality code and system stability. Collaborate … pipelines and testing practices to support continuous delivery. Provide line management, coaching, and technical mentorship to a team of Magento developers. Own and drive resolution of platform-level issues (performance, technical debt, refactoring, upgrades, etc.). Optionally facilitate Scrum ceremonies (planning, stand-ups, retrospectives) and contribute to improving delivery processes. Engage in regular code reviews, architecture sessions, and technical More ❯

improvements. Work within a multi-disciplinary team to deliver digital services that are highly user-focused and successful, ensuring adherence to governance standards. Develop toolkits and APIs for integration, performance optimisation, security, and scalability. Explore innovative problem-solving techniques in a fail-fast environment to meet functionality needs. Apply HMG IA technical security controls in line with ISO More ❯

technologies Work closely with test 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 problems, incidents, risks and issues More ❯

technologies Work closely with test 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 problems, incidents, risks and issues More ❯

closely with test 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 problems More ❯

technologies Work closely with test 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 problems, incidents, risks and issues More ❯

technologies Work closely with test 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 problems, incidents, risks and issues More ❯

within a multi-disciplinary team to deliver highly user focused and successful digital services ensuring governance standards are adhered to Implement toolkits and APIs for purposes such as integration, performance optimisation, security and scalability Keeping an open mind and exploring innovative ways to solve problems, working in a fail-fast fashion to provide required functionality Proactively apply HMG More ❯

if you have 10+ years 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 plus Experience with Big Data More ❯

We're excited if you 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 plus Experience with Big Data More ❯

Familiar with Git and version 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 clean, maintainable code A proactive More ❯

Familiar with Git and version 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 clean, maintainable code A proactive More ❯

within a multi-disciplinary team to deliver highly user focused and successful digital services ensuring governance standards are adhered to Implement toolkits and APIs for purposes such as integration, performance optimisation, security and scalability Keeping an open mind and exploring innovative ways to solve problems, working in a fail-fast fashion to provide required functionality Proactively apply HMG More ❯

experienced SAP Basis Lead to take charge of our SAP estate and keep it running like clockwork. You’ll take the lead on everything from upgrades and patches to performance tuning and system support, making sure everything works just as it should. It’s a hands-on role where your expertise will help prevent issues before they happen and … BW, CRM, SRM, Fiori, and Portal are stable, secure, and high-performing. Manage system upgrades, patches, installations, and technical configurations across a NetWeaver 7.5 environment. Monitor system health, troubleshoot performance issues, and fine-tune databases and infrastructure. Support backup, disaster recovery, and high availability planning. Handle daily system checks, incident resolution, and proactive issue prevention. Support transport management and … AWS, or GCP). Experience supporting SAP CRM 7.0, SRM 7.0, EP 7.5, BI 7.5, PO 7.5, and Fiori applications. Confident in database monitoring, parameter tuning, system backups, and performance optimisation. Exposure to scripting (Python, Shell), SQL, and administering 3-tier application environments. Comfortable providing 1st and 2nd line SAP support and working with business-critical systems. A proactive More ❯

in the mobile stack Collaborate 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, and retrospectives Contribute to ongoing … platform-specific customisation Proven track 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 ability to work closely with … More! Product Discount on Net 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 and show your passion! Ideas More ❯

based Front End interfaces using 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 Lead Front End Developer will More ❯

based Front End interfaces using 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 Lead Front End Developer will More ❯