51 to 75 of 109 Jest Jobs in the UK

Full Stack Engineer — React & Node

Location
United Kingdom
Management and Azure DevOps CI/CD• Implement robust error handling, logging and monitoring using Application Insights• Write unit and integration tests using Jest and Playwright, maintaining high test coverage• Participate in code reviews and architecture discussions, contributing to technical decision-making• Work in two-week sprints with daily collaboration ...

Full-Stack Software Engineer III

Location
Oxford, England, United Kingdom
open to discussing and honing approaches for our team to improve our working practices* Have some experience of test-driven development and mocking libraries (Jest, Mockito)* Be familiar with collaborative documentation tools (Jira and Confluence)* Have some real knowledge of Agile practices and execution (Scrum, Kanban)* Wanting to learn ...

React Native Developer

Hiring Organisation
Colossus Recruitment Ltd
Location
Sutton Coldfield, West Midlands (County), United Kingdom
Employment Type
Permanent
Salary
£45000 - £55000/annum
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 ...

Senior Full-Stack Mobile Developer

Location
City of Edinburgh, Scotland, United Kingdom
styling approaches (e.g. TailwindCSS, Flexbox, Grid) Experience building and maintaining Android applications Experience building and maintaining iOS applications Experience writing unit tests using Jest Experience with Expo for React Native development Experience implementing i18n (internationalisation) for multi-language/multi-region applications Experience working with native mobile features, such ...

Full-stack Lead Software Engineer — Application Owner

Location
Greater London, England, United Kingdom
integration/continuous delivery pipelines, and operational support Strong proficiency in frontend development with React, including state management and testing with frameworks such as Jest or React Testing Library Advanced knowledge of backend development using Node.js and TypeScript to build RESTful APIs, along with strong experience writing and maintaining comprehensive ...

Full-Stack Software Engineer III

Location
Oxford, England, United Kingdom
open to discussing and honing approaches for our team to improve our working practices. Have some experience of test-driven development and mocking libraries (Jest, Mockito). Be familiar with collaborative documentation tools (Jira and Confluence). Have some real knowledge of Agile practices and execution (Scrum, Kanban). Wanting ...

Senior Fullstack Engineer (Payments Experience)

Location
Greater London, England, United Kingdom
facing web applications. Backend Expertise: Deep hands-on experience with Python , FastAPI , PostgreSQL , Redis , and secure RESTful APIs. Frontend Proficiency: Mastery of TypeScript , React , Jest , and Storybook . (Experience with Micro-Frontends is a massive bonus). DevOps & Cloud: Comfort with AWS , Docker , Kubernetes , and Terraform for Infrastructure as Code. ...

Software Engineer

Location
Birmingham, England, United Kingdom
design, databases and the integration of services across a wider platform. Strong grounding in testing practices, including unit, integration and automated testing; experience with Jest and TDD is beneficial. Experience with cloud platforms, preferably Google Cloud Platform, together with Git, Docker and CI/CD workflows. A willingness ...

Node Developer

Location
Greater London, England, United Kingdom
About Us: Solirius Reply, part of the Reply Group, delivers technical consultancy and application delivery to our clients in order to solve real world problems and allow our clients to respond to an ever-changing ...

Senior Digital Engineer

Location
Bexhill-on-Sea, England, United Kingdom
e.g., JWT). Familiarity with popular frontend development tools such as Node, NPM, CI/CD pipelines, DevOps practices, and performance testing frameworks like Jest and React Testing Library. Experience with performance and memory tuning using relevant tools. Benefits Competitive salary based on experience + Car Allowance. Flexible and hybrid ...

Software Engineer

Location
Portsmouth, England, United Kingdom
Front-end frameworks: Vue.js and React.js APIs: GraphQL and REST Databases: MSSQL, MySQL and PostgreSQL Git and version control best practices Testing frameworks (PHPUnit, Jest, Cucumber) Agile methodologies without the ceremony - we take a very lean approach Docker CI/CD and cloud hosting Architecture scalability performance tuning Education ...

Mid-Weight Full-Stack Software Engineer

Location
West of England, England, United Kingdom
experience with Supabase is a plus) 05 Solid understanding of RESTful APIs and web services 06 Experience writing unit, integration and e2e tests with Jest/Vitest and Playwright 07 Comfortable using Git and working within agile delivery 08 Strong problem-solving skills and attention to detail 09 Clear communication ...

Lead Software Engineer

Location
Manchester, England, United Kingdom
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 ...

Software Engineer 3

Location
Grimsby, England, United Kingdom
infrastructure experience, preferably AWS using IaC Experience with Git version control and CI/CD pipelines (CircleCI) Experience with automated testing frameworks such as Jest and Vitest. Familiarity with agile development, both Kanban and Scrum Some knowledge of SQL and NoSQL databases, Postgres, DynamoDB, Redis, etc. Strong debugging skills, ideally ...

Senior UI Software Engineer

Location
Aylesbury, England, United Kingdom
Proven experience of the Angular UI framework. Worked in an Agile (Scrum) engineering environment. Cross-platform and cross-browser development experience. Experience using the Jest unit test framework. Experience using the Cypress browser testing framework. Company Benefits and Perks We believe that the best solutions are developed by teams ...

Frontend Engineer

Hiring Organisation
Oscar Technology
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 - £105,000 per annum
APIs with authentication, role-based access, tenant context and useful client-side error handling. Maintain unit, integration and end-to-end tests with Jest, React Testing Library and Cypress or Playwright. Meet WCAG 2.1 accessibility standards. Profile and optimise code splitting, lazy loading, memorisation and bundles through Jenkins and SonarQube ...

Front-end Developer

Location
Greater London, England, United Kingdom
C# .NET Microsoft SQL Server Experience with any of the following would be beneficial: Material UI Entity Framework Highchartsor another data-visualisation library Vite Jest or a comparable testing framework IIS Octopus Deploy TeamCity Enterprise or regulated software environments Applications involving complex datasets,dashboardsor analytical workflows What We Are Looking ...

Senior Digital Engineer

Location
Leicester, England, United Kingdom
e.g., JWT).* Familiarity with popular frontend development tools such as Node, NPM, CI/CD pipelines, DevOps practices, and performance testing frameworks like Jest and React Testing Library. Experience with performance and memory tuning using relevant tools.**What we offer**Join us and you’ll find a different ...

Full Stack Developer

Location
Manchester, England, United Kingdom
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 ...

Full Stack Developer

Location
Belfast City District, Northern Ireland, United Kingdom
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 ...

Senior Full Stack Engineer, Observability

Location
United Kingdom
TailwindCSS or similar utility-first frameworks), responsive layout, and practical accessibility (WCAG), including color-blind-safe palettes and accessible charts.-Automated frontend testing with Jest and React Testing Library, including visual regression testing for charts and dashboards.-AI-enabled development:-Practical, regular use of AI coding assistants and agents (e.g. ...

Frontend Developer (Vue.js & React)

Location
Greater London, England, United Kingdom
Livewire Knowledge of Next.js or Nuxt.js Experience with WebSockets and real-time applications Understanding of web accessibility (WCAG) standards Experience with testing frameworks (Jest, Vitest, Cypress) Familiarity with UI/UX design principles Experience building interactive interfaces and modern UIs Competitive salary based on experience Latest development equipment and tools ...

Frontend Architect - React AI

Location
Slough, England, United Kingdom
reactive programming paradigms Architecture: Strong understanding of micro-frontends and Single Page Applications (SPA) Testing: Hands-on experience with React Testing Library/Jest for unit and integration testing UI Automation (Good to Have): Exposure to frameworks like Playwright or Cypress Desired Experience Experience working on financial services or trading ...

Frontend Architect - React AI

Location
City Of London, England, United Kingdom
reactive programming paradigms Architecture: Strong understanding of micro-frontends and Single Page Applications (SPA) Testing: Hands-on experience with React Testing Library/Jest for unit and integration testing UI Automation (Good to Have): Exposure to frameworks like Playwright or Cypress Desired Experience Experience working on financial services or trading ...

React.js Developer

Location
City Of London, England, United Kingdom
Familiarity with code versioning tools such as Git Preferred Skills Experience with TypeScript Familiarity with server-side rendering Knowledge of testing frameworks such as Jest or Mocha Experience with continuous integration/continuous deployment (CI/CD) pipelines What We Offer ZERO micromanagement. At Fogsphere, developers work independently under ...