1 to 25 of 59 Jest Jobs in London

FullStack Developer

Hiring Organisation
DNS Info Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450/day
Have Financial Services or Banking domain experience Experience with event-driven architectures Kafka or RabbitMQ Terraform or Infrastructure as Code Unit testing frameworks (PyTest, Jest) Qualifications Bachelor's degree in Computer Science, Information Technology, or related field. 5+ years of software development experience. Excellent communication and stakeholder management skills. Preferred ...

Python/React Developer

Hiring Organisation
Mphasis
Location
London, UK
Employment Type
Full-time
Have Financial Services or Banking domain experience Experience with event-driven architectures Kafka or RabbitMQ Terraform or Infrastructure as Code Unit testing frameworks (PyTest, Jest) Qualifications Bachelor's degree in Computer Science, Information Technology, or related field. 5+ years of software development experience. Excellent communication and stakeholder management skills. Preferred ...

Fullstack Developer

Hiring Organisation
Opus Recruitment Solutions
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £650/annum
accessibility, security, and user experience Experience working in regulated environments such as Insurance, Financial Services, Banking, or FinTech Experience with automated testing frameworks including Jest, Cypress, or Playwright Familiarity with Git-based workflows and CI/CD pipelines Desirable Skills Experience delivering solutions within the Insurance sector Exposure to policy ...

typescript developer for authentication platforms

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
such as OAuth 2.0 and JWT Experience using Git, CI/CD tools such as GitHub Actions, and writing unit and integration tests with Jest Familiarity with security principles including IAM, encryption and networking, alongside observability tools such as OpenTelemetry, Honeycomb or Grafana Nice to have: Exposure to identity ...

Senior Software Engineer – Client Identity (Backend)

Hiring Organisation
Vanguard
Location
London, United Kingdom
Salary
£ 100 K
Code (CloudFormation or CDK/Terraform) Strong Git practices and CI/CD experience (GitHub Actions or similar) Experience writing unit and integration tests (Jest) Nice to Have Experience with identity, authentication, or MFA systems Familiarity with Kong API Gateway or similar Exposure to Aurora PostgreSQL or DynamoDB Knowledge ...

Full Stack Developer

Hiring Organisation
Arc IT Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
work with a variety of technologies. You’ll ideally have experience with some of the following, or be open to learning: JavaScript: React, Node, Jest, Cypress Ruby (non-Rails environment) – nice to have AWS: EC2, ECS, Lambda, S3, SQS Databases: MongoDB & PostgreSQL They are looking for someone who is: Proactive ...

Fullstack Java Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
based architecture and design systems. Must have experience using continuous delivery toolsets and following Test-Driven Development (TDD) practices with test automation frameworks (e.g., Jest), experience with Git and CI/CD, experience with Mulesoft is essential. Anypoint Studio, Anypoint Exchange, API Manager, Runtime Manager. Experienced in developing integrations using ...

Software Engineer III- Front End- Web- JPM Personal Investing- Mid Level

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
problem-solving skills. Proactive communicator with owned assignments. Ability to manage time effectively and meet realistic deadlines. Experience with testing frameworks such as Jest or RTL. Understanding of build tools such as Webpack, Vite, Parcel. Understanding of Pre-processors such as SASS, CSS Modules, JS Compilation. Understanding of CI/ ...

React Product Engineer

Hiring Organisation
Avanti
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £75,000 per annum
production Good DevOps and CI/CD knowledge Docker experience Commercial cloud experience with AWS, Azure or GCP Strong automated testing experience, including Jest/Mocha and ideally Cypress, BrowserStack or similar Excellent JavaScript fundamentals Strong communication and problem-solving skills Experience with TypeScript, SaaS/startups, generative AI APIs ...

Senior Backend Engineer x3

Hiring Organisation
IO Associates
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
tech stack includes: Node.js, TypeScript & JavaScript AWS (ECS, Lambda, CDK, SNS, SQS, DynamoDB, X-Ray) PostgreSQL/SQL REST APIs & JSON web services Jest, Git, GitHub Flow CI/CD and modern engineering best practices You'll be a great fit if you enjoy writing clean, maintainable code, mentoring others ...

Full-Stack Engineer

Hiring Organisation
Wheely
Location
London, United Kingdom
Salary
£ 80 K
managers such as npm/pnpm).Experience with automated testing, such as end-to-end tests (Playwright, Selenium), UI/Component tests (e.g. using Jest), or snapshot tests.STEM (technical) degree.Our current stack: Go microservices, shrinking Ruby monolith, Node.js, TypeScript, React, React Query, Vite, MongoDB, PostgreSQL, RabbitMQ, GRPC, Thrift, Redis ...

Senior Full Stack Engineer – Vialto Rewards -

Hiring Organisation
Vialto Partners
Location
London, United Kingdom
Salary
£ 80 K
Framework, nHibernate) plus caching strategies; experience modeling compensation, payroll, and equity data is a strong plus. Strong testing discipline including TDD and BDD, xUnit, Jest or Mocha, CI/CD automation, and quality gates—especially for calculation engines requiring reconciliation and regression coverage. Experience building analytics and reporting with ...

Full Stack Developer Full Stack Developer

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Salary
£ 60 K
React, Node.js, Next.js, Nest.js and TypeScript.Experience with PostgreSQL and REST APIs.Exposure to Microsoft Azure and CI/CD pipelines.Knowledge of testing frameworks such as Jest, Playwright, Cypress or React Testing Library.A collaborative approach with excellent communication skills.Experience mentoring developers or leading technical initiatives.Nice to haveGraphQL.NET or SQL ServerStorybook or design ...

Full Stack Developer

Hiring Organisation
Sanderson
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £65,000 per annum
Nest.js and TypeScript. Experience with PostgreSQL and REST APIs. Exposure to Microsoft Azure and CI/CD pipelines. Knowledge of testing frameworks such as Jest, Playwright, Cypress or React Testing Library. A collaborative approach with excellent communication skills. Experience mentoring developers or leading technical initiatives. Nice to have GraphQL .NET ...

Sr Software Engineer

Hiring Organisation
Wellington Management
Location
London, United Kingdom
Salary
£ 100 K
other relevant enterprise technologies (e.g., Java, .Net)7+ years of demonstrated experience designing and developing complex web services using REST, TypeScript, JavaScript/NodeJS, Jest, Java, Python or related technologies5+ years of demonstrated experience designing and developing web applications using HTML5, CSS and modern UI frameworks such as React ...

Senior Fullstack Developer

Hiring Organisation
Version 1
Location
London, United Kingdom
Salary
£ 80 K
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 ...

Senior Software Engineer (Vue.js/TypeScript) - iGaming

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
design systems (e.g. Storybook) REST and GraphQL API integration Build tooling such as Vite or Webpack Automated testing with tools such as Vitest, Jest, Cypress or Playwright Responsive, accessible UI development (WCAG standards) CSS architecture (e.g. Tailwind, SCSS, CSS Modules) Git and modern software development workflows CI/CD pipelines ...

Senior Full Stack Engineer - Team Web

Hiring Organisation
Intercom
Location
London, United Kingdom
Salary
£ 80 K
performance optimization techniques and best practices for fast-loading, responsive websites.Experience in writing tests for front-end components, with familiarity in testing frameworks (e.g., Jest, Mocha, Cypress).Strong problem-solving skills and the ability to work independently and as part of a team.Bachelor’s degree in Computer Science, Software Engineering ...

Senior SRE

Hiring Organisation
Pigment
Location
London, United Kingdom
Salary
£ 80 K
ArgoCD, Istio, Vault, Github, Docker (for local development)Backend: Microservices written in C# ASP.NET Core 8 (running exclusively on Linux) & GolangFrontend: React + Typescript, Jest, Cypress, Vite...Who you areMore than knowledge of a specific cloud provider, language, or automation framework, we are looking for great engineering skills: the ability ...

Principal Front End Developer React - Consultancy

Hiring Organisation
Client Server
Location
London, United Kingdom
Salary
£ 100 K
with modern CSS techniques (Flexbox, Grid) and frameworks like SASS, Material UI and BootstrapYou have experience with Redux, Webpack and modern testing frameworks like Jest, Mocha or EnzymeYou have a thorough understanding of the software development lifecycle, and are familiar with DevOps, CI/CD pipelines and Containerisation (Docker/ ...

UI Developer- Contract

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 80 K
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. ...

Software Engineer - Backend - 12 Month Maternity Cover FTC

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Spring Boot in an AWS (Amazon Web Services) environment. Front‐end knowledge of React, Redux, TypeScript, Node.js, Next.js and SCSS, and testing with Jest, Enzyme, React testing library and Cypress. Orchestration of test and deployment processes using CircleCI with GitHub and Maven. Experience with Contentful and Elastic Path as content ...

Full-stack Lead Software Engineer — Application Owner

Hiring Organisation
Jobleads-UK
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 ...

Senior Engineer - Payments

Hiring Organisation
Jobleads-UK
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 Engineer - PayE

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
client-facing web applications. Backend Stack: Proficient with Python, FastAPI, PostgreSQL, Redis , and designing secure REST APIs . Frontend Stack: Proficient with TypeScript, React, Jest , and Storybook . Experience with Micro Frontends (MFEs) is a major plus. DevOps & Cloud: Hands-on experience with Docker, Kubernetes, Terraform , and AWS . Foundations ...