1 to 25 of 42 JavaScript Jobs in Cardiff

Agile and DevOps practices, with a focus on continuous integration and delivery. Some proficiency in one or more programming languages (e.g., Python, Java, JavaScript) and experience with software architecture patterns. Experience with cloud platforms (e.g., AWS, Azure, GCP) and infrastructure as code. Familiarity with CI/CD pipelines, automated testing ...

/Senior Engineer Strong experience with technologies Golang Good experiene with TypeScript or Java would also be beneficial but not essential Experience with both JavaScript and frameworks such as React and Express.js (or similar) Strong experience using HTML & CSS Experience with cloud platform providers such as AWS, Azure ...

with a focus on large-scale, complex systems. Polyglot engineer comfortable working across multiple languages and frameworks (weve used Python, Java, Kotlin, Node.js, C#, JavaScript, Express, React and Next.js to name a few). Passion for learning new technologies and helping others do the same. Proven track record of leading ...

polyglot is preferred. Strong understanding of software development methodologies such as Agile, TDD and DevOps. Some proficiency in multiple programming languages such as Python, JavaScript, or similar. Extensive experience writing well-tested code. Good knowledge of cloud platforms (e.g., AWS, Azure, GCP) and infrastructure as code Experience with CI/ ...

Event-driven, microservices-oriented design Cloud: Azure (AWS experience valued), Infrastructure-as-Code Data: SQL, caching strategies, message brokers (RabbitMQ, etc.) Frontend: HTML, CSS, JavaScript DevOps: CI/CD pipelines, Behaviour-Driven Development, modern agile methodologies What You Bring: 10+ years of software engineering with proven architectural leadership - you shape ...

features from design through to deployment What we're looking for Strong experience building production ready applications with React and Next.js Confident use of JavaScript and TypeScript, with a focus on performance and modern React patterns Proven experience developing APIs or backend services with Python and FastAPI Comfortable working across ...

degree in Computer Science or a closely related discipline. - 4+ years building modern web or data applications with .NET and at least one JavaScript framework. - Hands-on experience with Azure or another major cloud provider, plus an understanding of microservices and event-driven architectures. - You love balancing delivery speed with ...

improvements that directly impact clients. Candidates must have or be eligible for SC clearance. Role Highlights Maintain, enhance and deploy production applications using Python, JavaScript/TypeScript, and cloud platforms (AWS, Azure, or GCP) Develop new features, improvements, and integrations based on client feedback, service metrics, or evolving requirements Troubleshoot ...

developing and integrating AI solutions such as chatbots, voicebots, ML models, or LLM-based analytics. Strong proficiency in Python (preferred) and/or JavaScript/TypeScript. Hands-on experience with AI frameworks (TensorFlow, PyTorch, LangChain) and LLM APIs (Azure OpenAI, OpenAI API, Anthropic, AWS Bedrock). Experience with Microsoft ...

large-scale software product. About You Strong experience in full stack development, with expertise in C#/.NET (Framework and Core) and JavaScript (Vue.js experience is a plus). Comfortable working across the stack and learning new technologies quickly. Skilled in writing clean, testable code and using automated testing frameworks. ...

long-term reliability What We're Looking ForRequired: · 2+ years software development experience · Commercial experience with Angular (v10+) · Strong proficiency in TypeScript and JavaScript · Familiar with RxJS and reactive programming concepts · Experience working with APIs (REST or GraphQL) · Some Node.js back-end experience (or willingness to grow in that area ...

technology skills, including substantial leadership and architecture responsibilities. Core Technology skills required – Strong full stack software engineering skills. Desirable technology skills: Python, Django, React, JavaScript, MySQL, SPAs, AWS (Lambda, CloudFormation, RDS). Best practice software development skills and practices. Excellent communication skills with an open, collaborative approach. A passion ...

evolution of a proprietary media technology platform What we're looking for Experience delivering greenfield or early-stage products Strong skills in JavaScript/TypeScript, Python, or similar Cloud experience (GCP preferred), including serverless development Solid SQL and data warehouse experience (e.g. BigQuery) Experience with automation and modern front ...

reports, technical notes and business development What they'll bring: A degree in Computer Science, GIS, Geospatial Technology or similar Experience with Python, JavaScript, SQL, HTML and CSS Familiarity with geospatial platforms and libraries (e.g. ESRI, QGIS, GDAL, GeoPandas) An interest in offshore, marine or renewable energy projects A collaborative ...

days/month; occasional team gatherings Salary: Senior: €130–150k base + growth trajectory Principal: €160–200k base + package discussion Tech: Python, JavaScript, Azure, AWS, AI, LLM's, RAG Industry: AI Consultancy The Role We're looking for talented engineers to join our customer-facing AI practice, from Senior ...

Mastery: Extensive professional background working with the JVM ecosystem (specifically Java or Kotlin). Modern Web & Orchestration: Ideally you will have proficiency in JavaScript frameworks and experience with workflow engines. Cloud-Native Data: Solid experience architecting on AWS and managing both relational and document-based data stores like Postgres ...

team grows Skills 4+ years commercial software development experience 2–3+ years experience with React.js 2–3+ years experience with Node.js and modern JavaScript (ES6+) Experience with relational databases such as Postgres Familiarity with Git and CI/CD workflows Strong collaboration and communication skills Agile development experience Writing clean ...

Contribute to CI/CD pipelines, cloud deployment, monitoring and automation Help define the engineering culture as a team. Tech We Use Frontend: Twig, JavaScript, CSS Backend: PHP Databases: PostgreSQL Caching/Search: Redis, ElasticSearch (Deep experience in all is not required - strong engineering fundamentals are.) About You 5+ years ...

Minimum 3+ years of commercial experience with Magento 2, specifically with a backend focus. Tech Stack: Strong proficiency in PHP, MySQL, HTML/CSS, JavaScript, and Git. AI-Augmented Workflow: You are comfortable working with AI-native IDEs (e.g. Google Antigravity, Cursor, Windsurf) to speed up debugging and code generation. ...

6 month fixed term contract. We are looking for a senior full-stack React developer to help a client continue development of their AI research product. It enables teams to transform their research into interactive ...

bring:We are looking for someone with broad technical skills, ideally with experience in some of the following: Azure, WordPress, Craft CMS, PHP, .NET, JavaScript, TypeScript, React, SQL or other databases, GitHub and JIRA. You should be methodical, customer-focused and proactive, comfortable working across a range of technologies ...

commerce functionality Diagnosing issues and providing ongoing technical support What we're looking for Commercial experience with WordPress development Strong PHP, HTML, CSS, JavaScript and database knowledge Experience with page builders (Elementor preferred) WooCommerce and SEO best-practice awareness A proactive, detail-oriented mindset Nice to have: Git, REST APIs ...

Bring • Strong experience in automated testing • Solid understanding of the SDLC and agile methodologies • Experience working with CI/CD pipelines • Proficiency in TypeScript, JavaScript, and ideally ReactJS • Hands‐on experience with Playwright, Cypress, or Selenium • Familiarity with test management tools such as Xray • Knowledge of BDD frameworks (Gherkin/ ...

using GitHub CI or/and Octopus Deploy. The ability to read and debug code in at least one of their core languages: JavaScript, Golang, Node.js or PHP. Benefits at a glance: A starting salary of £60,000 - £70,000 DOE A starting holiday allowance of 25 days holidays + ...

platforms Strong technical judgment and the ability to translate ambiguous requirements into clear design decisions Hands-on experience working with web technologies (e.g. modern JavaScript frameworks), backend services (Python, Go, or JVM languages), data-integration pipelines, and cloud-native tooling Understanding of reconciliation workflows, data lineage, and the operational safeguards ...