1 to 25 of 30 Jest Jobs

Java Fullstack developer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Knutsford, Cheshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£280 - £318 per day
Docker Strong experience in AWS services such as Lamda, Step function and IAM Proficiency in unit testing (Junit 4/5), Karma or Jest, code quality metrics & BDD and TDD approaches. Strong knowledge of relational databases (ideally MS SQL server DB) Strong communication, problem-solving and critical thinking skills with ...

Frontend React Developer

Hiring Organisation
Explore Group
Location
City of London, London, United Kingdom
libraries (e.g., Redux, Zustand). Solid experience integrating front‐end apps with RESTful APIs, (GraphQL is a bonus). Experience with testing frameworks (e.g., Jest , React Testing Library ). Comfortable with CI/CD pipelines, version control ( Git ), modern build tools and an eye for performance optimisation. Strong understanding ...

Full Stack Developer

Hiring Organisation
Erin Associates
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
TypeScript Strong REST API development skills Experience with C# in enterprise environments Knowledge of CI/CD, cloud infrastructure, and Azure DevOps Experience with Jest or Vitest Join a collaborative, agile team developing data-rich, user-friendly enterprise applications. Erin Associates Ltd acts as an Employment Agency for this vacancy. ...

Mid-Level Developer – £45,000-£55,000 – Leeds City Centre (Hybrid)

Hiring Organisation
Reed
Location
Leeds, West Yorkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £55,000 per annum, Inc benefits
Next.js Use modern JavaScript (ES6+), hooks, state management, and functional components Testing, Collaboration & Best Practices Write unit, integration, and functional tests using PHPUnit and Jest Follow PSR-12, SOLID principles, and clean code practices Participate in code reviews, sprint planning, and architecture sessions Collaborate closely with other developers, product teams ...

Junior Java Developer

Hiring Organisation
Qualient Technology Solutions UK Limited
Location
Shirley, West Midlands, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Lambda, API Gateway, S3, DynamoDB, Step Functions, Apigee) Proficiency in AngularJS, Jenkins, Karate, Node 10, Groovy, Bash, Typescript. Knowledge of Gherkin, Cypress, Jest Tooling: Gitlab, Jenkins, CloudFormation, Maven, Docker, Fortify on Demand, SonarQube AWS DevOps Engineer certification or above. Understanding of software development lifecycle. Ability to apply secure coding practices. ...

Junior Java Developer

Hiring Organisation
Qualient Technology Solutions UK Limited
Location
Solihull, West Midlands (County), United Kingdom
Employment Type
Permanent, Contract
Lambda, API Gateway, S3, DynamoDB, Step Functions, Apigee) Proficiency in AngularJS, Jenkins, Karate, Node 10, Groovy, Bash, Typescript. Knowledge of Gherkin, Cypress, Jest Tooling: Gitlab, Jenkins, CloudFormation, Maven, Docker, Fortify on Demand, SonarQube AWS DevOps Engineer certification or above. Understanding of software development lifecycle. Ability to apply secure coding practices. ...

Lead Software Engineer (MongoDB / Node.js / JavaScript)

Hiring Organisation
Adria Solutions
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£75,000
wider JavaScript/TypeScript ecosystem Express.js and/or Fastify RESTful API design AWS or similar cloud platforms Microservices architecture Testing frameworks (Vitest, Jest, Mocha, etc.) CI/CD pipelines & DevOps practices GitHub workflows Observability tools (e.g., DataDog) Docker/Kubernetes Tech Stack Youll Be Working With Node.js, JavaScript/ ...

Java Developer

Hiring Organisation
Experis
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
£80,000
Node 10, Typescript. - Tooling: Gitlab, Jenkins, Maven, Docker, Fortify on Demand or similar, SonarQube or similar - Cypress/Selenium, BDD-Gherkin --> Karate/Cucumber, Jest * Demonstrable evidence of leading and mentoring teams, combined with strong stakeholder management and an ability to communicate effectively at all levels within an organisation. * Able ...

Senior Frontend Engineer

Hiring Organisation
AudienceProject
Location
London Area, United Kingdom
understanding of state management, component architecture, and performance optimisation techniques. Experience integrating with RESTful APIs and/or GraphQL. Experience implementing testing strategies (e.g., Jest, React Testing Library, Cypress or similar). Familiarity with CI/CD pipelines and modern development workflows. Excellent English communication skills. Strong collaboration skills ...

Senior Front-End Developer React - Remote

Hiring Organisation
Reed
Location
Newcastle Upon Tyne, Tyne and Wear, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £62,000 per annum, Inc benefits
scalable front-end architecture Experience with API integration, cloud platforms, and CI/CD workflows Writing unit tests Modern front end testing frameworks like Jest Ability to mentor colleagues and collaborate effectively Strong understanding of performance, security, and modern engineering patterns Desirable Skills Docker and container-based development Backend ...

Senior Software Engineer, Frontend

Hiring Organisation
Travelex
Location
City of London, London, United Kingdom
React Experience with design systems, component libraries and Storybook Familiarity with state management libraries Experience with the testing pyramid and tools such as Vitest, Jest, Playwright Strong understanding of non-functional requirements (e.g. Accessibility, Security & Performance) Understanding of CI/CD practices and deployment pipelines Proficient with Git version control ...

Full Stack Developer (Typescript/NodeJs)

Hiring Organisation
mezzeIQ
Location
City Of Bristol, England, United Kingdom
meet project needs Useful experience Node.js React/React Native MySQL/PostgreSQL Typescript Serverless/Lambda Version control - Git AWS cloud/CDK Jest HTML/CSS/JS/SASS AI/ML EDI Manufacturing software (ERP) While the above knowledge and skills are preferred, we are open ...

Software Developer

Hiring Organisation
Reed
Location
Wellington, Somerset, England, United Kingdom
Employment Type
Full-Time
Salary
£41,000 - £51,000 per annum, Inc benefits
accessibility basics (WCAG). Back-end expertise in .NET (C#), asynchronous programming, and dependency injection. Quality-focused with experience in unit testing (Jest/NUnit or similar) and code review. Knowledge of RESTful API design, OpenAPI/Swagger, and NoSQL databases. Excellent collaboration skills, with experience working closely with product ...

Technical Lead - TypeScript / Node.js

Hiring Organisation
Adria Solutions Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
£60000 - £80000/annum
/TypeScript ecosystem Express.js and/or Fastify RESTful API design and distributed systems AWS or similar cloud platforms Microservices architecture Testing frameworks (Vitest, Jest, Mocha, etc.) CI/CD pipelines and DevOps best practices GitHub workflows Observability and monitoring tools (e.g., Datadog) Docker and Kubernetes Tech Stack ...

Technical Lead - TypeScript / Node.js

Hiring Organisation
Adria Solutions
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£80,000
/TypeScript ecosystem Express.js and/or Fastify RESTful API design and distributed systems AWS or similar cloud platforms Microservices architecture Testing frameworks (Vitest, Jest, Mocha, etc.) CI/CD pipelines and DevOps best practices GitHub workflows Observability and monitoring tools (e.g., Datadog) Docker and Kubernetes Tech Stack Youll ...

Front End Developer

Hiring Organisation
Eligo Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
applications. Knowledgeable in performance optimisation techniques to improve load speeds and search engine rankings. Experienced in writing unit and integration tests using tools like Jest and React Testing Library to ensure robust functionality. Desirable Skills Understanding of modern frontend tools and workflows. Knowledge of state management libraries such as Redux ...

Full Stack Developer - .NET/C# - Angular

Hiring Organisation
Planet Recruitment
Location
Bristol, United Kingdom
Employment Type
Permanent
Salary
£40000 - £50000/annum
will also demonstrate proficiency with: * Front end: Angular, responsive UI, accessibility basics (WCAG) * Back end: .NET (C#), asynchronous programming, dependency injection * Quality: Unit testing - Jest/NUnit or similar, code review * APIs & data: RESTful design, OpenAPI/Swagger, NoSQL databases * Ways of working: Collaborating with product/platform/developers ...

Full Stack Developer - .NET/C# - Angular

Hiring Organisation
Planet Recruitment
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Permanent
Salary
£40000 - £50000/annum
will also demonstrate proficiency with: * Front end: Angular, responsive UI, accessibility basics (WCAG) * Back end: .NET (C#), asynchronous programming, dependency injection * Quality: Unit testing - Jest/NUnit or similar, code review * APIs & data: RESTful design, OpenAPI/Swagger, NoSQL databases * Ways of working: Collaborating with product/platform/developers ...

Full Stack Developer

Hiring Organisation
ARC IT Recruitment Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
They work with a variety of technologies. Youll ideally have experience with some of the following, or be open to learning: JavaScript: React, Node.js, Jest, Cypress Ruby (non-Rails environment) nice to have AWS: EC2, ECS, Lambda, S3, SQS Serverless Databases: MongoDB & PostgreSQL They are looking for someone ...

Front-End Engineer React / TypeScript

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£0 per annum
skills React, TypeScript, Redux/Redux Toolkit; Next.js (nice-to-have). Accessibility-first (WCAG 2.x), semantic HTML, ARIA, design tokens. Strong testing habits: Jest, React Testing Library, Cypress/Playwright. UI quality: performance profiling, code-splitting, hydration, SSR/ISR (Next.js). Responsibilities Deliver modular, well-tested SPA components ...

Frontend Developer

Hiring Organisation
Adria Solutions
Location
Greater Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
create user-friendly interfaces. Continuous Learning: Embrace a culture of continuous learning and innovation. Your Profile: Technical Skills: Experience in React Native, Typescript, Jest & Detox, and Node.js. Communication Skills: Convey complex problems to team members. Agile and Lean Principles: Experience with agile and lean ways of working. ...

Front End Developer

Hiring Organisation
Hays
Location
Barnstaple, Devon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£45,000
hands-on with JavaScript and at ideally exposure to the Vue.js framework. TypeScript experience is desirable, but a mix of Tailwind, CSS, Sass, Less, Jest would be okay. Exposure to Python/PHP, Node.js or a general aptitude to pick up new languages will stand out. You must have experience ...

Front-End Developer Vue, JavaScript, Python, No VISAs

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Barnstaple, Devon, England, United Kingdom
Employment Type
Full-Time
Salary
£35,000 - £45,000 per annum
hands-on with JavaScript and at ideally exposure to the Vue.js framework. TypeScript experience is desirable, but a mix of Tailwind, CSS, Sass, Less, Jest would be okay. Exposure to Python/PHP, Node.js or a general aptitude to pick up new languages will stand out.You must have experience working ...

JavaScript Developer

Hiring Organisation
SCALERS GROUP LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
Experience Required Strong commercial experience with JavaScript (Vanilla) Solid understanding of Node.js Familiarity with state management libraries like Redux Proficient with testing frameworks (e.g., Jest, Mocha) Experience working in AWS cloud environments ...

Frontend Engineer (React Native) X 2

Hiring Organisation
Adria Solutions
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£50,000
environment. Proficient with ES5 & ES6 & Typescript Knowledge of authentication & authorization mechanisms with OAuth2, JSON Web Token etc. Experience with test frameworks & tools such as Jest, Detox, Jasmine, and Appium. Able to work with different layouts and ability to develop complex UI with design standards. Working knowledge of consuming third-party ...