1 to 25 of 51 Jest Jobs

Head of Software Engineering - 2 Days London City/3 Remote

Hiring Organisation
ZENZO DIGITAL LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
Stack: Frontend HTML5, CSS3, JavaScript (ES6+), TypeScript React.js (preferred), Angular, or Vue.js Responsive design (Bootstrap, Tailwind), state management (Redux, Context API) Front-end testing (Jest, React Testing Library, Cypress) Backend C#, ASP.NET Core/.NET 6+ RESTful and GraphQL APIs Entity Framework Core, LINQ Authentication & authorisation (OAuth2, JWT, Azure ...

Senior Engineer

Hiring Organisation
&Dine
Location
Greater London, England, United Kingdom
handling, loading states Performance – bundle optimisation, code splitting, rendering strategies Accessibility & UX – semantic HTML, responsive design, usability best practice Testing – unit and component testing (Jest, Vitest, Testing Library, Cypress/Playwright) Version control – Git workflows, PR reviews, and collaboration Back-end Experience with some of the following, or a strong ...

Staff Full Stack Engineer

Hiring Organisation
Addition
Location
England, United Kingdom
scale, simplifying complex architectures. Understanding of CI/CD and DevOps principles (Azure DevOps experience ideal). Strong background in testing frameworks such as Jest, Playwright or Cypress. Collaborative leadership style with a passion for mentoring and continuous improvement. Experience working with micro frontends or Nx, and partnering closely with ...

Frontend React Developer

Hiring Organisation
Explore Group
Location
England, 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 ...

Lead Java Developer

Hiring Organisation
Pyramid Consulting, Inc
Location
Glasgow City, Scotland, United Kingdom
knowledge of SQL/MySQL Experience with JavaScript Exposure to frontend technologies: React JS, Redux, HTML5, CSS3 Familiarity with frontend testing tools such as Jest Strong problem-solving and communication skills Ability to work onsite, 5 days a week Why Join? Long-term contract with a global banking leader High ...

Full Stack Engineer

Hiring Organisation
Redimeer
Location
England, United Kingdom
/CloudFormation/Pulumi are okay) CI/CD (preferably Github Actions, Gitlab pipelines and ArgoCD are okay) Experience with testing frameworks, e.g. Jest, Playwright Nice to have (in order of importance) Kubernetes (very nice to have), Microservice, Tailwind/ShadCN, AWS serverless expertise (Lambda/S3/API Gateway ...

Software Engineer, Frontend

Hiring Organisation
Travelex
Location
England, United Kingdom
/REST APIs Knowledge of the web platform, including HTML, CSS and Browser APIs Experience with the testing pyramid and tools such as Vitest, Jest, Playwright Understanding of CI/CD practices and deployment pipelines Proficient in using version control systems (Git) Nice to have: Experience with design systems ...

Senior Software Engineer - Pensions, ISA and Investments

Hiring Organisation
Hargreaves Lansdown
Location
Bristol, UK
Employment Type
Full-time
TypeScript with React on the front end, IaC, CI/CD Experience with unit, integration, and end to end testing tools and practices (e.g. Jest, Cypress, Backstop). Enjoys upskilling others in a team - you prioritise sharing knowledge Experience with integration and onboarding 3rd party vendors, meeting with vendor engineering ...

Full stack developer

Hiring Organisation
Stackstudio Digital Ltd
Location
Warwick, Warwickshire, West Midlands, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £480 to £500 per day
Experience Front End Skills React (including good knowledge of hooks) SWR for working with external REST APIs Next.js Styled Components HTML, Modern JavaScript & CSS Jest Back End Skills C# ASP.NET Core (v8+) Entity Framework Core (v8+) xUnit SQL Azure Data Factory (nice to have) GitHub Actions (nice to have) Terraform ...

Lead Front-End Developer

Hiring Organisation
Picture More
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £80,000 per annum
design and component architecture. Git and modern front-end workflows. Attention to detail and a problem-solving mindset. Desirable skills: Testing tools such as Jest, React Testing Library, or Cypress Build tools like Webpack or Vite Accessibility best practice knowledge Why this role? Hybrid working from a prime Liverpool Street ...

Senior Java Developer

Hiring Organisation
Square One Resources
Location
Bournemouth, Dorset, United Kingdom
Employment Type
Contract
Contract Rate
£409/day
define, design, and ship new features. Some hands on knowledge on React JS, Redux, HTML5, CSS3 Some exposure to frontend testing tools like Jest Ensure the performance, quality, and responsiveness of applications. Identify and correct bottlenecks and fix bugs. Maintain code quality, organization, and automation. Implement security and data protection ...

Full Stack Engineer

Hiring Organisation
Uniting Ambition
Location
Manchester, England, United Kingdom
North West office . Nice-to-have: Docker/Kubernetes, Terraform/ARM, Identity/Auth (OAuth2/JWT), front-end testing (Jest, RTL), fintech/healthcare/B2B SaaS experience. Why join us? Competitive salary £45k–£60k + performance bonus Hybrid working: flexible remote + collaboration days ...

Senior Front-End Developer - React

Hiring Organisation
Reed
Location
Whitley Bay, Tyne and Wear, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £62,000 per annum, Inc benefits
developers, and stakeholders to deliver user-centric products Integrate APIs and manage CI/CD pipelines Write robust unit tests using tools like Jest Contribute to architectural decisions and technical strategy Support continuous improvement and innovation across the development lifecycle Essential Skills: Expert-level proficiency in HTML, CSS, JavaScript Strong ...

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 ...

Full Stack Engineer / Full Stack Developer

Hiring Organisation
Gamma Telecom Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
applications using frontend frameworks, such as React, Angular Good knowledge of HTML/CSS (3+ years) Experience using JavaScript unit & e2e test frameworks (eg. Jest, Playwright) Experience deploying code using CICD pipelines. Experience working with and mentoring junior engineers. Development knowledge of public cloud service, ideally AWS Kubernetes (not essential ...

Software Engineer

Hiring Organisation
Gamma Telecom Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
applications using frontend frameworks, such as React, Angular Good knowledge of HTML/CSS (3+ years) Experience using JavaScript unit & e2e test frameworks (eg. Jest, Playwright) Experience deploying code using CICD pipelines. Experience working with and mentoring junior engineers. Development knowledge of public cloud service, ideally AWS Development knowledge ...

Senior UI Developer

Hiring Organisation
McGregor Boyall Associates Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
such as React or Vue.js Proven experience building institutional trading tools within financial markets FX trading systems experience highly advantageous Experience with testing frameworks (Jest, Cypress, etc.) and CI/CD pipelines Strong focus on performance optimisation and UI responsiveness Confident working directly with front-office stakeholders Bachelor's degree ...

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/ ...

Frontend Developer - Vue.js- Remote - £45,000 - £54,000 DOE

Hiring Organisation
Reed
Location
Newcastle Upon Tyne, Tyne and Wear, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £54,000 per annum, Inc benefits
planning large stylesets Experience with Webpack or similar build tools Responsive design & mobile-first development Working with REST APIs within microservices Writing frontend tests (Jest, Vue Testing Library or similar) Understanding of modern UI/UX patterns and frameworks Desirable: Cloud experience Familiarity with TDD Knowledge ...

Java AWS Developer

Hiring Organisation
Infoplus Technologies UK Ltd
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
£80,000
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. ...

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 Front-End Developer React - Whitley Bay - Hybrid 1 day per week from office

Hiring Organisation
Reed
Location
Whitley Bay, 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 (Front end)

Hiring Organisation
Viasat
Location
Dublin, Ireland
Employment Type
Permanent
Salary
EUR 125,000 - 150,000 Annual
What will help you on the job Key Skills Experience developing applications using React Native combined with TypeScript (required) Experience with Test Automation with JEST Experience building web or mobile applications using modern JavaScript (ES6+) Experience with native build processes including deploying apps to App/Play Store Experience integrating ...

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 React Developer

Hiring Organisation
Spectrum IT Recruitment
Location
Staines, Surrey, United Kingdom
Employment Type
Permanent
Salary
£70000 - £75000/annum
prerequisite Good software engineering principles eg Version control/Git, issue tracking, documentation etc Node.js Front end development tools and libraries like jest, rollup etc Experience with connected devices Web/UX design appreciation Figma or similar Full stack software development If you are seeking a role of this nature ...