18 of 18 Jest Jobs in the UK excluding London

Terraform or Bicep. Strong experience with REST APIs, FastAPI or Express, relational and NoSQL databases, automated testing with tools such as pytest and Jest, secure coding, OAuth 2.0 or OpenID Connect, role-based access control and production observability. ...

frontend CI/CD practices using GitHub Actions, Azure DevOps, Jenkins, or equivalent platforms. Establish unit, integration, and end-to-end testing strategies using Jest, React Testing Library, Playwright, or Cypress. Drive Core Web Vitals improvements, bundle optimization, caching, and rendering strategies. Establish frontend code quality, security, and observability standards. ...

frontend CI/CD practices using GitHub Actions, Azure DevOps, Jenkins, or equivalent platforms. Establish unit, integration, and end-to-end testing strategies using Jest, React Testing Library, Playwright, or Cypress. Drive Core Web Vitals improvements, bundle optimization, caching, and rendering strategies. Establish frontend code quality, security, and observability standards. ...

tested at interview. React: * Strong hands-on React with TypeScript * Micro Frontends using Module Federation * Reusable components, state and API data handling * Testing with Jest, React Testing Library or Cypress * Accessibility and performance Python: * Strong hands-on Python building production services * APIs consumed by React front ends * Serverless Python ...

frontend CI/CD practices using GitHub Actions, Azure DevOps, Jenkins, or equivalent platforms. Establish unit, integration, and end-to-end testing strategies using Jest, React Testing Library, Playwright, or Cypress. Drive Core Web Vitals improvements, bundle optimization, caching, and rendering strategies. Establish frontend code quality, security, and observability standards. ...

frontend CI/CD practices using GitHub Actions, Azure DevOps, Jenkins, or equivalent platforms. Establish unit, integration, and end-to-end testing strategies using Jest, React Testing Library, Playwright, or Cypress. Drive Core Web Vitals improvements, bundle optimization, caching, and rendering strategies. Establish frontend code quality, security, and observability standards. ...

Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Unit testing and automation/Testing frameworks (e.g. Mocha, Jest, Cypress) Experience working in an Agile delivery team We appreciate you may not be an expert in every area above - we can support with training ...

Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Unit testing and automation/Testing frameworks (e.g. Mocha, Jest, Cypress) Experience working in an Agile delivery team We appreciate you may not be an expert in every area above - we can support with training ...

Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Unit testing and automation/Testing frameworks (e.g. Mocha, Jest, Cypress) Experience working in an Agile delivery team We appreciate you may not be an expert in every area above - we can support with training ...

requests and take part in code reviews Build accessible interfaces that meet WCAG 2.2 AA. Write unit tests and Playwright tests, PHPunit, Vitest/Jest Identify the cause of bugs and implement bug fixes Support Deployment to customer and internal environments Write secure code that protects users, including against cross ...

Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Unit testing and automation/Testing frameworks (e.g. Mocha, Jest, Cypress) Experience working in an Agile delivery team We appreciate you may not be an expert in every area above - we can support with training ...

projects demand. Languages & Frameworks: Python (3.10+), TypeScript, JavaScript (ES6+), SQL, Bash · Frontend: React.js, Next.js (App Router & Server Components), Tailwind CSS, ShadCN UI, Redux, Zustand, Jest, Cypress. Build AI product UX patterns (streaming, review loops, provenance/citations, long-running tasks, error-recovery Backend: Django (5.x+), DRF, FastAPI, Pydantic, Celery, Django ...

frontend security Clear communication and the ability to explain technical choices to technical and non-technical people Nice to have Design system experience Jest, Jasmine, Cypress, Playwright or similar NgRx or Angular signals Web performance optimisation and tools such as Sentry Docker, AWS and modern deployment pipelines Experience in agile ...

Services (EAS Build). Over-the-Air (OTA) updates. Experience working with maps, location services, camera integrations or push notifications. Testing frameworks such as Jest or Playwright. Monitoring tools such as Sentry. Exposure to PHP or Laravel. Experience working within Agile teams using Jira. Experience leveraging AI tools to improve ...

memory usage Optimising lists (FlatList, SectionList) Managing animations and gestures efficiently Analytics, crash reporting, and monitoring (Firebase, GA) Testing & Quality: Unit testing with Jest Use of linting and formatting tools (ESLint, Prettier) Build, Release & Tooling: Git-based version control workflows CI/CD for React Native apps (via ADO) Experience ...

Proficiency in Python, including machine learning libraries such as PyTorch or scikit-learn, and experience of large language model APIs. Competence in automated testing (Jest and pytest) and in Git and GitHub, including code review. A secure and careful approach to the handling of personal data. The ability to work ...

applied experience Strong hands-on experience building enterprise web applications with React + TypeScript, including advanced component patterns. Strong experience with UI testing (e.g., Jest/React Testing Library and Cypress/Playwright) and systematic debugging/troubleshooting. Proven experience designing and delivering accessible, performant UIs (WCAG awareness, profiling, bundle ...

engineering best practices and CI/CD integration. Skillsets required: Strong understanding of testing principles and modern quality engineering practices. Hands on experience with Jest or Vitest. Experience with React Testing Library and Mock Service Worker (MSW). Experience with building frameworks from scratch with Playwright or Cypress. Knowledge ...