Permanent Jest Jobs in London

1 to 25 of 49 Permanent Jest Jobs in London

Full Stack Developer + Web3

Greater London, England, United Kingdom
Bamg Sports
of applications, handling large datasets efficiently. Collaborate with the team to design and implement robust APIs using GraphQL and RestAPI. Conduct thorough testing using Jest and similar tools to ensure code quality and reliability. Contribute to the architecture and design of Web 3 solutions, leveraging Polygon, NFTs, and other related … science, Software Engineering, or a related field (or equivalent experience). Strong expertise in TypeScript, JavaScript, RestAPI, Vue, Vite, TypeORM, Prisma, Git, NestJS, SQL, Jest, and GraphQL. Experience with Cloud Tech and serverless technologies, with GCP as necessary and AWS is an advantage. Previous experience working with Web3 technologies, particularly more »
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Senior Full Stack Developer

South East London, London, United Kingdom
ADLIB Recruitment
experience working with Node.js and React.js with a deep understanding of both. 3+ years experience developing code with TypeScript. Experience of automated testing (Playwright, Jest or similar). Comfortable with autonomy and ability to learn quickly. Excellent communication and happy to be on site twice a week. A mix of more »
Employment Type: Permanent
Salary: £85,000
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Senior Full Stack Engineer

london, south east england, United Kingdom
FINESSE
cross-platform mobile app development. Design: Experience with prototyping tools (Miro, Figma, Sketch) for rapid iteration of new designs and ideas. Testing: Testing frameworks (Jest, Mocha, Jasmine), Selenium, Cypress, TDD and BDD approaches to ensure code quality and application performance Familiarity with e-commerce best practices, including SEO, payment gateway more »
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Senior Consultant-Full stack development with React, NodeJS & AWS

London Area, United Kingdom
Infosys
architect scalable and reusable components and understand component lifecycle in React. State Management deep RESTful APIs and GraphQL Knowledge of testing frameworks such as Jest, Enzyme, Playwright etc. Continuous Integration/Continuous Deployment (CI/CD): Understanding of CI/CD pipelines and deployment strategies for React applications. Personal Excellent more »
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Senior Consultant-Full stack development with React, NodeJS & AWS

london, south east england, United Kingdom
Infosys
architect scalable and reusable components and understand component lifecycle in React. State Management deep RESTful APIs and GraphQL Knowledge of testing frameworks such as Jest, Enzyme, Playwright etc. Continuous Integration/Continuous Deployment (CI/CD): Understanding of CI/CD pipelines and deployment strategies for React applications. Personal Excellent more »
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Senior Software Engineer

london, south east england, United Kingdom
Hybrid / WFH Options
BPP
and cloud technologies such as Typescript, React, Node.js, Next.js & AWS. You will be an expert in test driven development practices using frameworks such as Jest, Cypress and React Testing Library. You will be passionate about fostering an inclusive environment, supporting the learning and growth of a diverse group of engineers. more »
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Full-Stack Developer

london, south east england, United Kingdom
Hybrid / WFH Options
Tata Consultancy Services
of building CI/CD pipelines using Jenkins. Experience working with deployment tools like UCD. Hands on experience writing Unit Tests using frameworks like Jest, JUnit etc. Good to have: Strong troubleshooting skills across the entire application stack. A sound understanding of architecture principles and best-practice deployment patterns. Experience more »
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Junior Frontend Developer

London Area, United Kingdom
Hybrid / WFH Options
Texcel
Skills in 💡: JavaScript, React.js, TypeScript, HTML, and CSS. Practices 🏆: Familiarity with web development best practices. Tools 🧪: Exposure to automated testing tools and frameworks like Jest and Playwright. Control 🔄: Experience with git and deployment workflows. Skills 💬: Excellent communication and problem-solving abilities. Extra Points For: Server-Side Rendering 🌐: Knowledge of SSR more »
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Junior Frontend Developer

london, south east england, United Kingdom
Hybrid / WFH Options
Texcel
Skills in 💡: JavaScript, React.js, TypeScript, HTML, and CSS. Practices 🏆: Familiarity with web development best practices. Tools 🧪: Exposure to automated testing tools and frameworks like Jest and Playwright. Control 🔄: Experience with git and deployment workflows. Skills 💬: Excellent communication and problem-solving abilities. Extra Points For: Server-Side Rendering 🌐: Knowledge of SSR more »
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PHP/Wordpress WebDeveloper

london, south east england, United Kingdom
Hybrid / WFH Options
Global Relay
standards and principles like dependency inversion (SOLID etc). Worked in an Agile environment Web Service API integration Unit testing with Mocha, Jasmine/Jest, React Test What you can expect: At Global Relay, there’s no ceiling to what you can achieve. It’s the land of opportunity for more »
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Full Stack Engineer

london, south east england, United Kingdom
Initi8 Recruitment
non-technical colleagues. Key Technologies you will encounter: JavaScript, React, ES6, HTML, CSS, REST APIs .NET, C#, MS SQL Material UI, Entity Framework, Highcharts, Jest SVN/Git, IIS 5+ years of professional front-end development experience The Salary, Location, Process Salary Range: £65,000 - £80,000 (based on experience more »
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JavaScript Developer

london, south east england, United Kingdom
BGC Group
ReactJS based Frontend development (other frameworks are fine, but willing to use react): Experience writing unit tests and integration tests for complex web applications (Jest, Puppeteer, Enzyme) Comfortable taking a static design and building it into a new application/feature. Comfortable working with git for source control and familiar more »
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Software Engineer

london, south east england, United Kingdom
ME+EM Ltd
to detail. ● An ability to explain technical concepts to non-technical audiences. Useful Experience: ● NextJS (app router, static rendering, turbo, mono-repo, Vercel) ● Typescript ● Jest ● Storybook (and Storybook testing) ● Playwright ● Contentful ● Algolia ● Datadog (or similar monitoring tools) ● GitHub actions ● Akamai ● GraphQL Employee Benefits: 33 days annual leave for full time more »
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Javascript Developer

london, south east england, United Kingdom
Hybrid / WFH Options
Oakwell Hampton
workshops What they are looking for: 4+ years of experience working with React, JavaScript and Typescript Exposure to automated testing tools and frameworks (e.g. Jest, Playwright) Experience with git and deployment workflows Proactive approach to work Excellent communication and problem-solving skills To learn more about the company and the more »
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Frontend Developer

london, south east england, United Kingdom
Eligible.ai
a class component. We use Sass modules for styling our components. We write our tests using React Testing Library, we’ve recently moved from Jest to Vitest as our runner and we’re expanding our Playwright coverage. We respond to Sentry monitoring and resolve issues as soon as possible. Benefits more »
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Senior Full Stack Engineer UK

london, south east england, United Kingdom
Hybrid / WFH Options
Purple Dot - The Pre-Commerce Company
data and building data-heavy features, or working on data warehousing and data analysis tooling. Experience managing large automated test suites, ideally tools like Jest and Cypress. Benefits £80k - £110k salary. £1000 per year to spend on your own holidays. £1000 per year to spend on your own learning and more »
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Sr. React Native developer

London Area, United Kingdom
Infoplus Technologies UK Limited
XCode, etc that are needed for cross platform development. • Any prior experience in setting up Native Bridge would be an additional advantage. • Experience with Jest or Mocha for unit testing. • Should have integrated with various backend systems using SOAP/REST Web Services and should be familiar with session management more »
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Sr. React Native developer

london, south east england, United Kingdom
Infoplus Technologies UK Limited
XCode, etc that are needed for cross platform development. • Any prior experience in setting up Native Bridge would be an additional advantage. • Experience with Jest or Mocha for unit testing. • Should have integrated with various backend systems using SOAP/REST Web Services and should be familiar with session management more »
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Senior React Native Engineer

London Area, United Kingdom
AMP People | Hiring Tech Leaders for Purpose Driven Companies | UK, US, Europe
and core concepts. Proficiency with type systems like TypeScript or Flow, and extensive knowledge of React and its ecosystem. Experience with Git, testing libraries (Jest/Enzyme/react-testing-library), and modern application stacks such as Redux, React Hooks, and React Navigation. more »
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Senior React Native Engineer

london, south east england, United Kingdom
AMP People | Hiring Tech Leaders for Purpose Driven Companies | UK, US, Europe
and core concepts. Proficiency with type systems like TypeScript or Flow, and extensive knowledge of React and its ecosystem. Experience with Git, testing libraries (Jest/Enzyme/react-testing-library), and modern application stacks such as Redux, React Hooks, and React Navigation. more »
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Senior React Native Engineer

London Area, United Kingdom
Hybrid / WFH Options
Travelex
Type systems like TypeScript or Flow Deep knowledge of React and the surrounding open-source ecosystem. Git, especially within teams Testing libraries and methods (Jest/Enzyme/react-testing-library) Modern mobile/web application stack: State management with React Context, Redux, React Hooks Build tooling (Webpack & Metro bundler more »
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Senior React Native Engineer

london, south east england, United Kingdom
Hybrid / WFH Options
Travelex
Type systems like TypeScript or Flow Deep knowledge of React and the surrounding open-source ecosystem. Git, especially within teams Testing libraries and methods (Jest/Enzyme/react-testing-library) Modern mobile/web application stack: State management with React Context, Redux, React Hooks Build tooling (Webpack & Metro bundler more »
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Backend Integration Lead

london, south east england, United Kingdom
Tata Consultancy Services
building application .net, core, MS-SQL, IIS. on experience of version control platforms such as GitHub. on experience writing Unit Tests using frameworks like Jest, JUnit etc. and fix SAST and DAST scans (Checkmark, Aqua, NexusIQ, SonarQube). Good to have: Strong troubleshooting skills across the entire application stack. A more »
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React Native Developer Lead

Greater London, England, United Kingdom
Wipro
XCode, etc that are needed for cross platform development. Any prior experience in setting up Native Bridge would be an additional advantage. Experience with Jest or Mocha for unit testing. Should have integrated with various backend systems using SOAP/REST Web Services and should be familiar with session management more »
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React Native Developer Lead

london, south east england, United Kingdom
Wipro
XCode, etc that are needed for cross platform development. Any prior experience in setting up Native Bridge would be an additional advantage. Experience with Jest or Mocha for unit testing. Should have integrated with various backend systems using SOAP/REST Web Services and should be familiar with session management more »
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Jest
London
10th Percentile
£59,750
25th Percentile
£64,375
Median
£80,000
75th Percentile
£107,500
90th Percentile
£111,250