Jest Jobs in the City of London

19 of 19 Jest Jobs in the City of London

Frontend Developer - (M/F/D)

City of London, London, United Kingdom
Hybrid / WFH Options
ITC Infotech
Angular, React. Hands on experience in working with TypeScript. Demonstratable experience in working with and designing REST APIs Knowledge and experience in working with NodeJS Experience with Unit testing (Jest, Vitest). Solid understanding and experience in HTML 5 and CSS 3. Hands-on experience in developing pixel perfect CSS driven, table-less HTML for all new projects, following development More ❯
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UI MSAL Developer

City of London, London, United Kingdom
Tata Consultancy Services
Typescript, CSS, SCSS, SCSS modules. Hands on experience in Git. Strong Skills in React, Next.js, Redux, React Context API, and State management. Good understanding of the Testing frameworks e.g., Jest, React testing library, and Enzyme. Strong working experience in package Build tools e.g., Webpack and Rollup. Experienced in building and deploying micro-frontend applications. Has the flexibility and understanding to More ❯
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Software Engineering Manager - Unified Client Experience (UCX)

City of London, London, United Kingdom
Hybrid / WFH Options
Hargreaves Lansdown
innovation go hand-in-hand. Your Technical Toolkit React/React Native/TypeScript Swift (iOS)/Kotlin (Android) JavaScript/HTML/CSS Figma/Git Testing frameworks : Jest, Cypress, XCTest, Espresso CI/CD pipelines : GitHub Actions, CircleCI, Bitrise Cloud-native architecture : AWS, Docker, Kubernetes Observability tools Interview Process 3 Stage Interview Stage 1 - Discussion with our Hiring More ❯
Employment Type: Permanent, Work From Home
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Senior Full Stack Software Developer

City Of London, England, United Kingdom
Hybrid / WFH Options
Matched
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 ❯
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Principal Software Engineer - Unified Client Experience (UCX)

City of London, London, United Kingdom
Hybrid / WFH Options
Hargreaves Lansdown
Kotlin (Android) JavaScript/HTML/CSS RDBMS (Oracle, Sybase)/NoSQL (Document DB) AWS/Docker/Kubernetes CI/CD pipelines : GitHub Actions, CircleCI, Bitrise Testing frameworks : Jest, Cypress, XCTest, Espresso Observability tools : Prometheus, Grafana Interview Process 3 Stage Interview Stage 1 - Discussion with our Hiring Manager (30mins): A chance to talk with our Hiring Manager in more More ❯
Employment Type: Permanent, Work From Home
Salary: £90,000
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Full Stack Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
Bounteous
GraphQL, and WebSockets - Experience with Git, CI/CD pipelines, and cloud platforms (GCP) Nice to Have: - Experience with Docker and container orchestration (e.g., Kubernetes) - Familiarity with testing frameworks (Jest, Mocha, Cypress) - Knowledge of performance optimization and security best practices - Contributions to open-source projects or a strong GitHub portfolio Regards Anita More ❯
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Full Stack Engineer

City Of London, England, United Kingdom
Hybrid / WFH Options
Matched
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 ❯
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Junior Developer

City of London, London, United Kingdom
Hybrid / WFH Options
develop
Tech Stack Frontend Next.js (App Router, React Server Components) React + Zustand shadcn/ui + TailwindCSS Zod (for validation) Backend NestJS + TypeORM Redis + Bull/BullMQ Jest (for testing) Architecture & Infrastructure 100% TypeScript codebase pnpm monorepo Docker + Kubernetes SQL databases 🎯 Key Responsibilities Design, build, and maintain scalable full-stack features using TypeScript Develop intuitive, high-performance More ❯
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Senior Software Engineer, Frontend

City of London, London, United Kingdom
Hybrid / WFH Options
Travelex
fluency with TypeScript, Next.js and 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 Nice to have: Experience with More ❯
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Lead Software Engineer - Full Stack (FinTech)

City of London, London, United Kingdom
Twelve
such as: | **Backend & Core Services** | Python, NodeJS, TypeScript | | **Frontend** | React, TypeScript, styled-components | | **Data & Persistence** | PostgreSQL, MySQL, BigQuery | | **Cloud & DevOps** | AWS, GCP, Docker, Terraform, GitHub Actions/CircleCI | | **Testing** | Jest, React Testing Library, Cypress, pytest | Compensation: Highly competitive salary and equity package, corresponding with experience and impact. Work Model: A truly flexible hybrid environment that balances deep focus work (remote More ❯
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Senior Full Stack Engineer (Typescript + React)

City of London, London, United Kingdom
Oliver Bernard
of delivery in our technologies. Experience with React, TypeScript, HTML, CSS and web technologies. Commitment to maintaining high quality software through the use of automated testing tools such as Jest and Cypress/Playwright. Experience with backend TypeScript, e.g. Node JS, Nest JS and express. Familiarity with Git and version control. Experience with Agile development methodologies. A pragmatic, right-tool More ❯
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Full Stack Engineer

City of London, London, United Kingdom
Clarity (formerly Anecdote)
outcomes. AI-native builder : Cursor, v0 , Claude Code (and friends) are daily drivers for rapid prototyping and refactors. React + TypeScript mastery: component design, hooks, performance, testing (Vitest/Jest, Playwright). FastAPI expertise: async patterns, Pydantic schemas, pagination, auth (OAuth2/OIDC), rate-limits, background jobs. Elasticsearch fluency: mappings/analyzers (ngrams, synonyms), aggregations, filters, sorting, performance tuning. Cloud More ❯
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Senior Software Engineer (React/Node)

City of London, London, United Kingdom
Hybrid / WFH Options
Oliver Bernard
requirements: Commercial experience with their stack TypeScript, React, Next.js and Node.js Strong expertise in designing and maintaining scalable, high-performance web applications A good understanding of databases Experience using Jest and Cypress If you’re a Senior Software Engineer (React/Node) looking to work in a tech for good organisation, please apply. More ❯
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Senior Frontend Engineer (Product) - AI SaaS - London (Hybrid)

City of London, London, United Kingdom
Hybrid / WFH Options
Stax - Deeptech Talent
Partner with cross-functional teams to translate complex, ambiguous problems into elegant, scalable solutions. Tech Ecosystem React · TypeScript · Vite · Next.js · WebAssembly (DuckDB, WebGPU) · D3/visx · Storybook · Tailwind CSS · Jest · Cypress · Playwright What You Bring 8+ years building and evolving large-scale web applications. Proven track record in front-end architecture (modular codebases, micro-frontends, design systems, scalability). Strong More ❯
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Senior Software Engineer | Typescript | Fully Remote

City of London, London, United Kingdom
Hybrid / WFH Options
Wilson Brown
and Product development. Role Information: Salary : Up to £100,000 (DOE) + Equity Location : Fully remote (UK only) Stack : TypeScript, Next.js, React, Tailwind, Shadcn, Prisma, Postgres, Redis, GCP, OpenAI, Jest, Playwright You’ll join a remote first, high-trust engineering team working with a modern, cloud-native stack - with real influence over technical decisions from day one. This is a More ❯
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Full Stack Engineer, Senior

City of London, London, United Kingdom
Hybrid / WFH Options
Twelve
development experience. Proven experience in environments where GenAI is utilised in the development workflow Full Tech Stack: Backend & Data: Python, PostgreSQL, BigQuery, MySQL Frontend: TypeScript, React, styled-components Testing: Jest, React Testing Library, Cypress, pytest Cloud & Infra: AWS, GCP, ECS Fargate, Docker, Terraform, GitHub Actions This is a unique opportunity for an engineer who understands what best practice looks like More ❯
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Quality Assurance Automation Engineer

City Of London, England, United Kingdom
Sparta Global
Good communication skills and ability to work collaboratively. Desirable: Experience with BDD/TDD methodologies. Familiarity with API testing and tools such as Postman. Knowledge of testing frameworks like Jest or Mocha. What We Offer: A collaborative and supportive work environment. Flexible working arrangements (remote or hybrid). Career development opportunities and training support. A strong focus on work-life More ❯
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Angular Dev

City of London, London, United Kingdom
Hybrid / WFH Options
Bloc Recruitment
with code reviews, architectural decisions, and mentoring. What You Bring: 8+ years in software development, 5+ with Angular (v12+). Strong in Angular Material, Nx, NGXS/NgRx, RxJS, Jest/Cypress/Playwright. Solid grasp of CSS, UI design, accessibility, and cross-browser compatibility. Collaborative mindset and a focus on delivering real business impact. Bonus: Experience with GCP, FastAPI More ❯
Employment Type: Permanent, Work From Home
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Senior Software Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
Motilent
internal SDKs, DICOMWeb services, Keycloak authentication, and reporting/persistence APIs; guide configuration and deployment best practices across environments. Uphold engineering standards - code style and quality gates, localisation requirements, Jest unit coverage, Typedoc documentation, and CI-ready builds via Webpack/Docker. Provide technical leadership: mentor engineers through reviews, pairing, and architectural collaboration, while investing in practical logging, monitoring, and … overlays, viewport coordination). Deep knowledge of DICOM/DICOMWeb workflows, imaging metadata, multi-series coordination, and medical data privacy considerations. Tooling fluency: Webpack 5, npm scripts, Dockerised deployments, Jest testing, ESLint/Prettier automation, and scalable state management patterns. Secure OAuth/OpenID (Keycloak) implementations, robust API integration, resilient error handling, and localisation pipelines. Strong grasp of numerical methods More ❯
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Jest
the City of London
10th Percentile
£64,250
25th Percentile
£74,375
Median
£98,750
75th Percentile
£118,750