Jest Jobs in London

1 to 25 of 30 Jest Jobs in London

Lead Software Engineer - Java, Spring Boot, Microservices

East London, London, United Kingdom
TPXImpact Holdings Plc
. CI/CD and Automation:Implementing and maintaining continuous integration/continuous deployment pipelines to accelerate development cycles. Code Quality and Testing:Experience with automated testing frameworks (e.g., Jest, JUnit) and best practices for ensuring code quality. DevOps Practices:Expertise in DevOps, particularly around automating deployment, monitoring, and scaling applications. Communication:Able to confidently communicate with internal and external More ❯
Employment Type: Permanent
Salary: £70,000
Posted:

Javascript Developer

London Area, United Kingdom
Hybrid / WFH Options
Experis
CSS3, and responsive design principles . Experience with RESTful APIs , JSON, and asynchronous programming. Familiarity with version control systems (Git) . Ability to write unit and integration tests (e.g., Jest, Mocha, Cypress). Strong problem-solving skills and attention to detail. Excellent communication skills and ability to work independently or as part of a team. Desirable Skills: Experience with TypeScript More ❯
Posted:

Javascript Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Experis
CSS3, and responsive design principles . Experience with RESTful APIs , JSON, and asynchronous programming. Familiarity with version control systems (Git) . Ability to write unit and integration tests (e.g., Jest, Mocha, Cypress). Strong problem-solving skills and attention to detail. Excellent communication skills and ability to work independently or as part of a team. Desirable Skills: Experience with TypeScript More ❯
Posted:

Javascript Developer

london, south east england, united kingdom
Hybrid / WFH Options
Experis
CSS3, and responsive design principles . Experience with RESTful APIs , JSON, and asynchronous programming. Familiarity with version control systems (Git) . Ability to write unit and integration tests (e.g., Jest, Mocha, Cypress). Strong problem-solving skills and attention to detail. Excellent communication skills and ability to work independently or as part of a team. Desirable Skills: Experience with TypeScript More ❯
Posted:

Javascript Developer

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Experis
CSS3, and responsive design principles . Experience with RESTful APIs , JSON, and asynchronous programming. Familiarity with version control systems (Git) . Ability to write unit and integration tests (e.g., Jest, Mocha, Cypress). Strong problem-solving skills and attention to detail. Excellent communication skills and ability to work independently or as part of a team. Desirable Skills: Experience with TypeScript More ❯
Posted:

Full stack developer (hybrid)

London, United Kingdom
Hybrid / WFH Options
McCabe & Barton
in the team's agile practices Take part in continuous improvement of the development process Essential Technical Skills Language - JavaScript, NodeJS, Typescript Framework - NestJS/Express/Microservices Testing - Jest/Mocha/Cypress/React testing Library API - OpenAPI/GraphQL/GRPC Messaging - AMQP/RabbitMQ/Kafka Data Storage - MongoDB/Mongoose Web UI - Angular/ReactJS More ❯
Employment Type: Permanent
Salary: GBP 75,000 Annual
Posted:

SharePoint SPFx Developer

South East London, London, United Kingdom
Hybrid / WFH Options
Data Careers
/TypeScript: Advanced knowledge of modern JavaScript and TypeScript CSS/SCSS: Styling and responsive design implementation Web Standards: HTML5, accessibility (WCAG), cross-browser compatibility Testing: Unit testing with Jest or similar frameworks Version Control: Git workflow and collaboration practices SharePoint Knowledge: Understanding of SharePoint Online architecture and security model Experience with SharePoint lists, libraries, and content types Knowledge of More ❯
Employment Type: Contract, Work From Home
Rate: £500 - £550 per day
Posted:

Senior Software Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Matched Group
equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing More ❯
Employment Type: Full-Time
Salary: £80,000 - £95,000 per annum
Posted:

Software Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Matched Group
equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing More ❯
Employment Type: Full-Time
Salary: £75,000 - £85,000 per annum
Posted:

Senior Software Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Matched Group
equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing More ❯
Employment Type: Full-Time
Salary: £80,000 - £95,000 per annum
Posted:

Software Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Matched Group
equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing More ❯
Employment Type: Full-Time
Salary: £75,000 - £85,000 per annum
Posted:

Full Stack Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Matched Group
equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing More ❯
Employment Type: Full-Time
Salary: £75,000 - £85,000 per annum
Posted:

Principal Software Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Computer Futures
and stakeholder engagement Mentor engineers and champion technical excellence Innovate across full-stack solutions with real-world impact Your Tech Arsenal Frontend: React.js (Hooks, Context API), TypeScript, Redux, Cypress, Jest Backend: Java 11+, Spring Boot, RESTful APIs, Microservices, PostgreSQL, Kafka Cloud & DevOps: AWS (EKS, MSK, Opensearch), CI/CD (Jenkins), Monitoring (CloudWatch, Kibana) Why You'll Love It Here Remote More ❯
Employment Type: Full-Time
Salary: £60,000 - £95,000 per annum
Posted:

Senior Full Stack Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Matched Group
equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing More ❯
Employment Type: Full-Time
Salary: £80,000 - £95,000 per annum
Posted:

Principal Software Engineer

London, United Kingdom
Hybrid / WFH Options
Computer Futures
systems. ??? Your Tech Toolkit You'll be working with a modern, enterprise-grade tech stack designed for scale, resilience, and agility. Frontend: React.js (Hooks, Context API) TypeScript Redux Cypress, Jest Backend: Java 11+ Spring Boot RESTful APIs Microservices PostgreSQL Kafka Cloud & DevOps: AWS (EKS, MSK, Opensearch) CI/CD with Jenkins Monitoring with CloudWatch, Kibana ?? Why You'll Love Working More ❯
Employment Type: Permanent
Posted:

Principal Software Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Computer Futures
systems. Your Tech Toolkit You'll be working with a modern, enterprise-grade tech stack designed for scale, resilience, and agility. Frontend: React.js (Hooks, Context API) TypeScript Redux Cypress, Jest Backend: Java 11+ Spring Boot RESTful APIs Microservices PostgreSQL Kafka Cloud & DevOps: AWS (EKS, MSK, Opensearch) CI/CD with Jenkins Monitoring with CloudWatch, Kibana Why You'll Love Working More ❯
Employment Type: Full-Time
Salary: £70,000 - £100,000 per annum
Posted:

Full Stack Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Matched Group
equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing More ❯
Employment Type: Full-Time
Salary: £75,000 - £85,000 per annum
Posted:

Senior Full Stack Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Matched Group
equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing More ❯
Employment Type: Full-Time
Salary: £80,000 - £95,000 per annum
Posted:

Software Engineer

London, United Kingdom
Faculty
create intuitive user experiences Proven ability to work in both rapid prototyping mode and to ship/maintain large-scale products Knowledge of modern front-end testing frameworks like Jest or Cypress Familiarity with deploying software for Cloud Environments (AWS/Azure/GCP) (IaC experience such as Terraform is a plus) Experience with containerisation technologies like Docker (Kubernetes experience More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

React Developer

London, United Kingdom
Hybrid / WFH Options
Lawrence Harvey
retrieval, manipulation and management. Experience with developing accessible, responsive layouts using componentised CSS/SASS. Working practices such as test-driven development or behaviour-driven development. TypeScript testing using Jest or a similar framework and React Testing Library or Enzyme for component testing. Desirable Skills: Familiarity with SQL database concepts and hands on experience with PostgreSQL. Familiarity with version control More ❯
Employment Type: Contract
Rate: £600 - £700/day
Posted:

Full Stack Python/React Developer

London, United Kingdom
Square One Resources
in React.js and Next.js development Language: Solid experience with TypeScript API Development: Experience building RESTful APIs and working with databases Testing: Experience writing unit tests using testing frameworks (pytest, Jest, or similar) CI/CD: Exposure to CI/CD pipelines and automated deployment processes Version Control: Proficiency with Git and collaborative development workflows Problem Solving: Ability to debug and More ❯
Employment Type: Contract
Rate: GBP Daily
Posted:

Senior Software Engineer

London, United Kingdom
Hybrid / WFH Options
Doxy.me Inc
engineers 4th Stage - Cross-functional interview followed by a conversation with our VP Engineering Additional information Doxy.me tech stack Frontend: React, TypeScript, Playwright, WebRTC, Next.js, Nx.dev Backend: Nodejs, TypeScript, Jest, NestJS, Nx.dev Cloud: AWS 3rd party: Vonage, Pubnub, Segment, Twilio, Stripe Our product: Doxy.me : The simple, free, and secure telemedicine solution currently used by over 1,000,000 doctors worldwide More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Developer

Isleworth, London, United Kingdom
Hybrid / WFH Options
Lancesoft Ltd
What youll bring: Extensive experience with TypeScript and Node.js in production environments. Strong knowledge of GraphQL (API design, schema evolution, integration ). Experience with automated testing frameworks ( Vitest, Playwright, Jest ). Familiarity with DevOps tooling: Docker, Helm, Kubernetes , CI/CD pipelines. Experience with cloud-native architectures and infrastructure-as-code. Ability to drive improvements across the codebase and influence More ❯
Employment Type: Contract
Rate: Up to £600 per day
Posted:

Senior Software Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Tank Recruitment
GraphQL, and AWS (EKS, Lambda, RDS). A proven track record in building resilient APIs and managing backend services/databases. Experience with TDD and testing frameworks such as Jest and Pact. Knowledge of CI/CD pipelines (ideally GitHub Actions). Hands-on experience with observability/monitoring tools (e.g., DataDog). A proactive, problem-solving mindset with the More ❯
Employment Type: Full-Time
Salary: Salary negotiable
Posted:

Software Developer

london, south east england, united kingdom
Hybrid / WFH Options
Giig Hire
or Tailwind. Familiarity with build tools (Webpack, Babel). Knowledge of authentication systems (JWT, OAuth). Experience with CI/CD tools and/or Docker. Testing frameworks (PHPUnit, Jest, etc.). What's on Offer Competitive salary depending on experience. Flexible working hours with some remote options. A collaborative and supportive team environment. Opportunities to take ownership of projects More ❯
Posted:
Jest
London
10th Percentile
£55,000
25th Percentile
£56,875
Median
£72,500
75th Percentile
£93,750
90th Percentile
£128,000