1 to 25 of 87 Permanent JavaScript Jobs in South Wales

Essential Strong hands-on experience developing with Microsoft Dynamics 365 and Dataverse . Experience building Power Apps, Power Automate and Power Pages solutions. Strong JavaScript/TypeScript, HTML and CSS skills, ideally with experience using React or a similar framework. Experience integrating applications using REST APIs and Azure services . ...

negotiable requirement) • 1–3 years of professional software development experience, or equivalent strong project-based work • Strong proficiency in TypeScript and modern JavaScript • Experience building production applications with React and Next.js (routing, SSR/SSG, API routes, data fetching) • Backend experience with Node.js and/or Python (REST APIs, authentication ...

permissions (AWS), DevOps security, CI/CD, CI/CD tools (GitHub Workflows), Git, Python development, Python testing frameworks (pytest, unittest), JavaScript knowledge (Node.js), RabbitMQ, FFMPEG, Linux systems administration Machine Learning Applied machine learning, computer vision, object detection, image classification, model development and evaluation, data annotation and curation, training pipelines ...

schema design, domain-driven architecture, and concurrency. Proven experience developing production-grade RESTful APIs ideally with an API-first approach. Some proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Familiarity with ...

Databricks development and deployment. Optimise Databricks workloads for performance and cost. Need to program using the languages such as SQL, Python, R, YAML and JavaScript Data Integration: Integrate data from various sources, including relational databases, APIs, and streaming data sources. Implement data integration patterns and best practices. Work with ...

feedback to make your work even better You can read more about our engineering values here Great to haves Familiarity with C#/.NET, JavaScript/TypeScript and React Expertise with an OOP language (eg. Java, C++) and a modern JS framework (eg. Angular, Vue.js) Proficiency in working ...

need to succeed: Essential Experience Python 3+ years' API Integrations Strong SQL skills (MySQL or PostgreSQL) Solid front-end fundamentals (HTML, CSS, JavaScript, React, Angular) Good understanding of software design principles and best practices Advantageous Technical skills Django experience API design and development Test driven development Front-end frameworks (React ...

responsive Shopify/Shopify Plus websites (2+ years minimum). Strong knowledge of Shopify Store 2.0, Liquid, and Shopify APIs. Skilled in HTML, CSS, JavaScript (ES6+), and TypeScript. Experience with React (Remix/Next.js). Experience with backend languages/frameworks (preferably Node.js or Ruby). Strong understanding of RESTful ...

responsive Shopify/Shopify Plus websites (2+ years minimum). Strong knowledge of Shopify Store 2.0, Liquid, and Shopify APIs. Skilled in HTML, CSS, JavaScript (ES6+), and TypeScript. Experience with React (Remix/Next.js). Experience with backend languages/frameworks (preferably Node.js or Ruby). Strong understanding of RESTful ...

application modernization or technology refresh Development and maintenance of high-availability and mission-critical systems Web application development using frameworks (e.g. Java, Spring Boot, Javascript, ReactJS, Node.js, Flutter or Kotlin) Database design and development (e.g. Oracle, PostreSQL, MySQL) Cloud-based or Cloud-native application development (e.g. Azure, AliCloud ...

Platform components and infrastructure. In-depth knowledge of Power Apps, Power Automate, Power BI and Dynamics 365. Scripting or programming knowledge, such as C#, JavaScript, Python, Power Fx, HTML or CSS. Ability to identify and manage technical risk. Experience providing technical leadership, coaching or mentoring other engineers. Desirable criteria Power ...

visible Production systems that handle real money — reliability is not optional What We Need Technical: Strong full-stack engineering ability with deep TypeScript/JavaScript (ES6+) (5+ years) Solid experience with React and reactive state management (RX, MobX, or similar) Real working ability in Rust — it's part ...

LOOKING FOR? 1.5+ years of experience in a technology-focused role using Python Able to pass a technical assessment in Python, Java or Javascript Commitment to complete a 16-week, part-time course to develop your mid-level skills KEY RESPONSIBILITIES: Build & Streamline CI/CD Pipelines: Design, implement ...

LOOKING FOR? 1.5+ years of experience in a technology-focused role using Python Able to pass a technical assessment in Python, Java or Javascript Commitment to complete a 16-week, part-time course to develop your mid-level skills KEY RESPONSIBILITIES: Build & Streamline CI/CD Pipelines: Design, implement ...

Commercial experience using agentic AI or AI-assisted tooling within the software development lifecycle Experience with Entity Framework or similar ORM tools Exposure to JavaScript frameworks Familiarity with Azure/Azure DevOps/CI/CD pipelines Experience working with or modernising legacy systems Understanding of performance optimisation and scalable ...

above). Advanced skills in SQL and PL/SQL, with a solid understanding of database design and optimisation. Front‐end development experience using JavaScript, JSON, CSS, and HTML. Excellent communication skills, with the ability to engage effectively with both technical and non‐technical stakeholders. A genuine enthusiasm for programming ...

model versioning, dataset management, verification workflows, and result/metric aggregations. Requirements: The technical requirements for the role are: Must have Strong proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Solid ...

Skills Enthusiasm for software engineering, across the whole stack A strong problem-solving attitude and willingness to contribute to technical decisions Some knowledge of Javascript or Typescript, and of database technologies such as PostgreSQL and experience in delivering a web or native mobile application A quality mindset, understanding what ...

Linux (server versions specifically) Strong asset: proficiency in Docker and deployment on the docker Preferred: Strong technical skills, including proficiency in Django, Flask, PyTorch, JavaScript (React, Node.js), and Go, with hands-on experience in full-stack development. Proficiency in deploying and managing AI/ML models as services or APIs ...

consultancy delivering complex, mission-critical software across Central Government. You’ll work in an Agile team on full-stack development with Java, TypeScript/JavaScript, deployed across AWS, Azure and private clouds. This hands-on role offers ownership, mentoring opportunities, direct client engagement, and clear paths to technical leadership, with ...

platform features and technologies from the ground up. Experience needed as a Back End Developer: 3+ years of Node.js development Type Script/Strong JavaScript skills React REST API development ...

practices ~ Strong grasp of object-oriented programming principles ~ Commercial experience using agentic AI or AI-assisted tooling within the software development lifecycle Exposure to JavaScript frameworks Familiarity with Azure/Azure DevOps/CI/CD pipelines Understanding of performance optimisation and scalable architecture Competitive salary based on experience ...

improvement. To be successful in your application for the Software Engineering Lead position, you'll ideally have experience with: Python, C#/.NET and JavaScript REST API development GitHub Enterprise and GitHub Actions Azure App Services and Azure Functions Designing and delivering software platforms, integrations or services into operational/ ...

experience in one or more of the following areas: Programming: proficiency in one or more modern languages such as Python, Go, Java, C++, or JavaScript/Node.js. Operational experience: experience administering large-scale production environments, including hardware, operating systems, networks (firewalls/load balancers), and cloud platforms like AWS, Azure ...

design, microservices architecture, gRPC/REST services, and database design (PostgreSQL, Redis). Frontend proficiency with React/Next.js, responsive design, and modern JavaScript/TypeScript Cloud infrastructure knowledge including AWS services, CI/CD pipelines, and DevOps practices. System architecture experience designing scalable, maintainable applications from ground up. Experience ...