1 to 25 of 40 JavaScript Jobs in Wales

Dynamics Developer (12 month FTC)

Hiring Organisation
Yolk Recruitment Ltd
Location
Cardiff, South Glamorgan, United Kingdom
Employment Type
Full-Time
Salary
£50,000 per annum
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 . ...

Senior Web Developer

Hiring Organisation
Gap Personnel - Wrexham
Location
Wrexham, Conwy County, Wales, United Kingdom
Employment Type
Permanent
stakeholders to deliver end-to end solutions. Person Specification The successful candidate will have strong, demonstrable experience in: o React.js o Next.js o JavaScript (ES6+) and modern browser APIs o HTML5 & CSS3 (responsive design, accessibility, cross-browser compatibility) o TypeScript o Tailwind CSS or similar modern CSS frameworks o Node.js ...

Software Engineer (Mid and Senior Levels)

Location
Newport, Wales, United Kingdom
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 ...

Full Stack Software Engineer (Golang/Typescript)

Hiring Organisation
Safe Intelligence
Location
Cardiff, United Kingdom
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 ...

Senior Data Engineer

Hiring Organisation
Mastek
Location
Cardiff, United Kingdom
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 ...

Full Stack Developer

Location
Cwmbran, Wales, United Kingdom
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 ...

Senior Infrastructure Engineer - Power Apps

Hiring Organisation
Inspire People
Location
Swansea, Neath Port Talbot, Wales, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
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 ...

Integrations Consultant / Software Developer

Location
Caldicot, Wales, United Kingdom
Proficiency in database interactions and management via SQL, and MS SQL database structures and architecture Experience writing application code in .NET C++/C#, JavaScript, Java, HTML, SOAP, WSDL, RESTful API/web services, and XML Familiarity with the modern telephony industry, ideally on Mitel Contact Center and UC solutions ...

Lead Applications Developer

Location
Cardiff, Wales, United Kingdom
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 ...

Front End Software Engineer (Typescript)

Hiring Organisation
Safe Intelligence
Location
Cardiff, United Kingdom
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 ...

Senior Java Engineer - Remote, Full-Stack, Growth

Location
Newport, Wales, United Kingdom
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 ...

Back End Developer

Hiring Organisation
rmg digital
Location
Cardiff, United Kingdom
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 ...

Software Engineer Lead

Hiring Organisation
100% IT Recruitment Ltd
Location
Cardiff, South Glamorgan, Wales, United Kingdom
Employment Type
Permanent
Salary
£70,000
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/ ...

Senior Full Stack Engineer

Hiring Organisation
Ocean Orchestra
Location
Cardiff, United Kingdom
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 ...

Senior Dynamics 365 Developer & Cloud Architect

Location
Bridgend, Wales, United Kingdom
drive integration with Azure Cloud and our Power Platform ecosystem. You will design plugins, workflows, and web applications tied to CRM using C#, ASP.NET, JavaScript, HTML and CSS, while mentoring peers and shaping architectural roadmaps. The role requires deep expertise in Dynamics 365, Azure, and modern web technologies, with ...

Technical Power Platform Consultant

Hiring Organisation
Mphasis
Location
Cardiff, United Kingdom
data modeling. Knowledge of SharePoint, Microsoft Teams, Azure Logic Apps, and Microsoft 365 ecosystem. Experience with JSON, REST APIs, and scripting (e.g., PowerShell or JavaScript). Familiarity with Agile methodologies and DevOps practices. Excellent problem-solving, communication, and interpersonal skills. Preferred Qualifications: Microsoft Certified: Power Platform App Maker Associate ...

Software Developer Placement Programme No experience needed

Location
Cardiff, Glamorgan, United Kingdom
online at your own pace and become job-ready in as little as a few weeks. Our programme includes: Official Training in HTML, CSS, JavaScript, and React.js Official AWS certification Official Microsoft Azure certification [NH1] 30+ hands-on coding projects to build your portfolio Interactive tools including GitHub and real ...

Tester-Functional & Automation Testing- Central Area

Location
Penarth, Wales, United Kingdom
transition. Working knowledge of SQL for test data setup and validation. Proficiency in at least one scripting/programming language (\"e.g., Java, Python, JavaScript, C#.\"). Experience with API testing and validation techniques. Familiarity with defect management tools (\"e.g., JIRA, Azure DevOps.\"). Proven ability to work effectively in secure ...

Software Development Engineer in Test Engineering · Cardiff, London ·

Location
Cardiff, Wales, United Kingdom
have: Proven commercial experience in an Automation Engineer or Software Development Engineer in Test (SDET) role. Strong programming skills in modern languages such as JavaScript/TypeScript, or Python. Hands-on experience with modern automation frameworks (e.g., Cypress, Playwright, or Selenium). Solid experience with API testing tools and libraries ...

Solutions Architect

Location
Newport, Wales, United Kingdom
Pension, Private Medical Insurance, etc. Skills and Experience: Strong automation using Microsoft 365, Power Platform and Azure services Developing bespoke solutions using C#, SQL, JavaScript, Python and related technologies Supporting reporting, data warehousing and analytics requirements Applying practical understanding of AI and LLM-based solutions to improve business processes Introducing ...

Lead Frontend Developer (Adobe Commerce)

Location
Wrexham, Wales, United Kingdom
development team, ideally in an Adobe Commerce (Magento) E-Commerce environment.* Strong, practical experience with headless commerce architectures (e.g., GraphQL) and expertise in modern JavaScript frameworks and the latest libraries.* Solid understanding of the Adobe Commerce (Magento 2) platform, particularly its theming layer, layout XML, and APIs.* Experience managing multi ...

Integrations Architect & Custom Solutions Developer

Location
Caldicot, Wales, United Kingdom
support, covering Contact Center integrations, reporting, IVR interfaces and API integrations. The role requires strong SQL/MS SQL, .NET/C++/C#, JavaScript and RESTful APIs experience, with a background in telephony interfaces and #J-18808-Ljbffr ...

Frontend Web Developer — Responsive, CMS & Performance

Location
Newport, Wales, United Kingdom
platforms. You will work with designers, SEO specialists and client teams to deliver polished, accessible interfaces. Applicants should have strong HTML, CSS and JavaScript skills, experience with Craft CMS/WordPress/Shopify, and a proactive approach to problem-solving. This is a hands-on role focused on delivering reliable ...

Staff Frontend Engineer (AI Lab | £170,000)

Hiring Organisation
Paradigm Talent
Location
Cardiff, United Kingdom
interactivity. Write and maintain comprehensive unit and end-to-end tests to ensure reliability at scale. You should have Strong experience with TypeScript/JavaScript and modern frameworks (React or similar). A proven track record of delivering polished, performant, and elegant user interfaces. Deep appreciation for UI/ ...

Senior Software Developer

Location
Bridgend, Wales, United Kingdom
plugins, workflows, and custom entities to enhance CRM functionality.* Build and maintain web applications tied to Dynamics 365 using C#, ASP.NET (Core and MVC), JavaScript, HTML, and CSS.* Write efficient SQL queries for reporting and data management within Dynamics 365 and relational databases (e.g., SQL Server).**Mentorship*** Mentor developers … Troubleshoot infrastructure issues and optimize resources for cost efficiency and performance.**Web Development & Integration*** Enhance front-end features for contest websites and portals using JavaScript, HTML, and CSS.* Develop RESTful APIs and manage data exports between Dynamics 365 and third-party platforms.* Work with cross-functional teams to integrate ...