18 of 18 Jest Jobs in the North of England

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 ...

e.g. OpenTelemetry, Prometheus) Comprehensive testing across unit, integration and functional layers, including Go's built-in testing tooling and frontend testing frameworks such as Jest or React Testing Library Go modules and dependency management Go performance fundamentals, including profiling with pprof, memory management and garbage collection behaviour You’ll demonstrate ...

e.g. OpenTelemetry, Prometheus) Comprehensive testing across unit, integration and functional layers, including Go's built-in testing tooling and frontend testing frameworks such as Jest or React Testing Library Go modules and dependency management Go performance fundamentals, including profiling with pprof, memory management and garbage collection behaviour You’ll demonstrate ...

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 ...

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 ...

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 ...

TypeScript Extensive experience developing applications using React Good knowledge of HTML/CSS (3+ years) Experience using JavaScript unit & e2e test frameworks (e.g. Jest, Playwright) Experience deploying code using CICD pipelines. Experience working with and mentoring junior engineers. AWS (or Azure/GCP) knowledge or experience is beneficial. Kubernetes ...

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 ...

design — Express withOpenAPIor equivalent. Nice tohave: comfort with runtime type validation at trust boundaries — Zod, Yup, or similar. Nice tohave: experience writing unit andcomponenttests — Jest andReactTesting Library,Vitest, or equivalent. Nice tohave: containerisationfundamentals using Docker or an equivalent tool, and general scripting ability in Bash or PowerShell. Highly desirable: experience ...

well enough to see what the framework is doing for you. Accessibility in practice: keyboard, focus, screen reader. Useful, not required TypeScript. Testing with Jest, Vitest or Playwright. #J-18808-Ljbffr ...

Angular Deep understanding of software architecture, design patterns, and API design principles Experience working with CI/CD pipelines, automated testing frameworks (e.g. Jest, Playwright), and version control Proven experience running large-scale production systems in AWS and working with Kubernetes/containerisation Strong debugging, performance optimisation, and problem-solving ...

systems (Vercel, GitHub Actions). Experience building or maintaining a design system. Experience with testing libraries and tools (Vitest, React Testing Library, Playwright, Jest). Experience using Tailwind or other utility-based CSS libraries. The stack Next.js React TypeScript Tailwind Typesense ClickHouse Vercel Shadcn/ui Jotai Why work ...

Front End applications using Angular and TypeScript Write clean, maintainable and well-tested code using modern engineering practices Build and maintain automated tests using Jest Contribute to CI/CD pipelines using GitLab CI/CD Support cloud-native deployments using AWS and container technologies Participate in architecture discussions, code … improve application performance, scalability and reliability Strong commercial experience developing applications with Node.js Experience building REST APIs using Express.js Experience writing automated tests using Jest Experience using GitLab CI/CD Understanding of Agile software delivery Experience working with Git Experience with some of the following technologies would be advantageous ...

plain JavaScript to know what the compiled output does. Git in daily use. Useful, not required Monorepo tooling and shared packages. Testing with Vitest, Jest or Playwright. #J-18808-Ljbffr ...

them. Build and consume API microservices. Work with SQL or NoSQL databases, and use Redis for caching and session handling. Write automated tests with Jest or Mocha, and practise test-driven development. Follow the GOV.UK Design System and GDS standards and patterns, and meet the GDS Service Standard. Make sure … Looking For Essential: BPSS check required. Strong, hands-on experience of JavaScript, TypeScript and Node.js. Experience with Express or Fastify. Experience writing tests with Jest or Mocha. Experience with SQL or NoSQL databases. Experience with Redis and with building or using API microservices. Experience working with AWS and Azure ...

Build and consume API micro services. Work with SQL or NoSQL databases, and use Redis for caching and session handling. Write automated tests with Jest or Mocha, and practise test-driven development. Follow the GOV.UK Design System and GDS standards and patterns, and meet the GDS Service Standard. Make sure … iteratively. Investigate and fix defects, and support services in live. What We are Looking For Experience with Express or Fastify. Experience writing tests with Jest or Mocha. Experience with SQL or NoSQL databases. Experience with Redis and with building or using API microservices. Experience working with AWS and Azure ...