51 to 75 of 124 Jest Jobs in the UK

UI Developer- Contract

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
React, Redux, Styled Components, Apollo GraphQLUX and visual design skills are a plusThe development stack includes: TypeScript, React, Redux, Styled Components, Apollo GraphQL, Webpack, Jest, Cypress and Prettier. Familiarity with these technologies is a plus. My client is based London. ...

Senior Fullstack Developer

Hiring Organisation
Version 1
Location
London, UK
Employment Type
Full-time
Python, contributing to the design, build, and support of scalable and secure full-stack web applications using FastAPI. Experience in Unit Testing with Jest Experience with GraphQL with React for efficient data fetching and state management is preferred. Consume and integrate RESTful APIs to efficiently connect frontend applications with backend ...

Frontend Engineering Associate Manager (GenAI experience)

Location
Greater London, England, United Kingdom
experience with modern React patterns (hooks, context, state management) Experience with frontend testing strategies and tools (unit, integration and end-to-end), e.g., Jest/Vitest, React Testing Library, Playwright/Cypress Accessibility-first delivery (WCAG), including semantic HTML and assistive technology testing Web performance optimisation and profiling, including Core ...

Fullstack Software Engineer II, Rebates

Location
Boston, England, United Kingdom
Microsoft SQL Server, or Azure Cosmos DB. Azure DevOps, Docker, Kubernetes, Helm, or other Azure services. Databricks, Delta Lake, or data‐intensive financial calculations. Jest, React Testing Library, Playwright, or JUnit. Why This Role Matters at Conga Rebates is one of the core capabilities Conga brings together across pricing, quoting ...

Java Developer Integrated Financial Crime (IFC)

Location
Glasgow, Scotland, United Kingdom
pipelines (e.g., Jenkins, GitLab CI) and containerisation technologies (e.g., Docker, Kubernetes). Knowledge of unit testing and integration testing frameworks (e.g., JUnit, Mockito, Jest, React Testing Library). This role will be based in Glasgow. Our Work Experience is the combination of everything that's unique about us: our culture ...

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 ...

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 ...

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 ...

Software Engineer - Integration

Location
Manchester, England, United Kingdom
working in an event-driven, microservices architecture Familiarity with relational databases (PostgreSQL) and NoSQL stores (DynamoDB) Experience writing unit and integration tests (we use Jest) Working knowledge of CI/CD practices Nice to Have: Experience with AWS AppSync or GraphQL API development Python scripting in a data or pipeline ...

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 ...

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 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 ...

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. ...

Senior JavaScript Engineer

Location
West of England, England, United Kingdom
very familiar with: TypeScript React Redux (or other state management) CSS (we use SCSS modules) Accessibility practices (WCAG) Testing frontend code (unit testing, e.g. Jest/bun test/vitest; e2e testing, e.g. Cypress or Playwright) Mentoring or supporting the growth of other engineers Bonus if you are familiar with ...

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 ...

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 ...

Front End Developer (Node.js/Angular/AWS)

Location
Newcastle upon Tyne, England, United Kingdom
Front End applications using Angular and TypeScript Write clean, maintainable and well-tested code using modern engineering practices Build and maintain automated tests using Jest Contribute to CI/CD pipelines using GitLab CI/CD Support cloud-native deployments using AWS and container technologies Participate in architecture discussions, code … improve application performance, scalability and reliability Strong commercial experience developing applications with Node.js Experience building REST APIs using Express.js Experience writing automated tests using Jest Experience using GitLab CI/CD Understanding of Agile software delivery Experience working with Git Experience with some of the following technologies would be advantageous ...

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 ...

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 ...

Product Engineer

Hiring Organisation
Consortia
Location
London, UK
Employment Type
Full-time
data development Flask and FastAPI React with Typescript and Vite AWS services including ECS, Lambda and event-driven architectures Postgres React Query Jest, React Testing Library and PlaywrightThis role is particularly well suited to an individual who naturally considers the broader product impact of their work and enjoys collaborating closely ...

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 ...