1 to 25 of 122 Jest Jobs in the UK

Full-Stack Developer

Location
Tipton, England, United Kingdom
through platforms like GitHub or GitLab. Testing and Debugging: Write and maintain unit tests, perform debugging, and ensure cross-browser compatibility. Use tools like Jest, Mocha, or similar for testing. Deployment and Continuous Integration/Continuous Deployment (CI/CD): Implement automated deployment pipelines using tools like Jenkins, GitLab ...

Senior Software Developer ( SC Cleared )

Location
Greater London, England, United Kingdom
Strong experience with CI/CD pipelines (GitLab preferred) and automated build/test processes Experience in automated testing using modern frameworks (e.g., Jest for Node.js applications) Strong Agile delivery experience with ability to collaborate in multi-disciplinary teams Desirable Skills: Holding Active SC Clearance or Held Active clearance ...

Software Engineer

Location
Bristol, England, United Kingdom
similar. Strong debugging, root‐cause analysis and resolution of production issues. Familiarity with unit, integration and end‐to‐end testing tools (e.g. Jest, Playwright). Experience integrating and onboarding 3rd‐party vendors, defining patterns and abstracting APIs. Understanding of microservices and RESTful API development (structuring, documentation, versioning, testing, stubbing/ ...

Fullstack Engineer

Hiring Organisation
Randstad Digital
Location
Manchester, North West, United Kingdom
Employment Type
Contract
Contract Rate
£55 - £65 per hour
Code, GitHub Copilot, Codex) to generate, test, and refactor code. Testing & Quality: Unit/Integration testing across the stack (JUnit, Mockito, React Testing Library, Jest). Experience monitoring system health (SLIs/SLOs). Qualifications & Experience 7+ years of professional full-stack development experience. Background working in product-oriented, retail ...

Full Stack Developer - Java/TypeScript /Angular

Location
Greater London, England, United Kingdom
Services, AKS, and storage. Experience developing and consuming APIs and managing data exchange between systems. Familiarity with CI/CD pipelines, testing frameworks (JUnit, Jest, Cypress), and Git workflows. Awareness of secure coding practices, authentication (OAuth/OIDC), and identity management. Strong collaboration and problem-solving skills in multidisciplinary teams. ...

Full Stack Developer

Location
Greater London, England, United Kingdom
Services, AKS, and storage. Experience developing and consuming APIs and managing data exchange between systems. Familiarity with CI/CD pipelines, testing frameworks (JUnit, Jest, Cypress), and Git workflows. Awareness of secure coding practices, authentication (OAuth/OIDC), and identity management. Strong collaboration and problem-solving skills in multidisciplinary teams. ...

Full Stack Developer

Location
City of Westminster, England, United Kingdom
Grafana). Containerization : Docker and Kubernetes. APIs : REST, GraphQL, OpenAPI. Databases : SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis). Testing : Unit and functional testing (Jest, Cypress, Mocha). Soft Skills Strong communication skills for technical and non-technical stakeholders. Ability to work in fast-paced, complex environments. Proactive problem-solving ...

Principal Engineer (Software Engineering/Devops)

Location
Greater London, England, United Kingdom
MongoDB. We use AWS for our cloud services and our infrastructure is managed with K8s, Terraform, Github Actions and Jenkins. We test with Jest and Cypress, and monitor our systems with Prometheus, Grafana and Sentry. What We Offer Remote-first culture with an office in London Bridge (optional) Competitive salary ...

Frontend Developer (Design Systems)

Hiring Organisation
scrumconnect ltd
Location
Taunton, Somerset, United Kingdom
Employment Type
Permanent
Salary
GBP 55,000 - 60,000 Annual
Figma, particularly Dev Mode. Experience calling APIs and working with RESTful microservices. Hands-on experience with Azure DevOps YAML pipelines, automated testing (for example Jest, Cypress or Playwright) and DAST tools. Experience delivering services to the Service Standard in complex government environments. A clear communicator, able to explain technical progress ...

Senior Full-Stack Software Engineer (Java & React / Javascript / Angular)

Location
Oxford, England, United Kingdom
open to discussing and honing approaches for our team to improve our working practices.· Have experience of test-driven development and mocking libraries (Jest, Mockito)· Have experience with creating and updating technical documentation using collaborative tools (Jira and Confluence)· Real-world experience of Agile practices and execution (Scrum, Kanban ...

Senior Fullstack Engineer (Go/React)

Location
Leeds, England, United Kingdom
e.g. OpenTelemetry, Prometheus) Comprehensive testing across unit, integration and functional layers, including Go's built‐in testing tooling and frontend testing frameworks such as Jest or React Testing Library Go modules and dependency management Go performance fundamentals, including profiling with pprof, memory management and garbage collection behaviou Technical Excellence & Craft ...

Senior Fullstack Engineer (Go/React)

Location
Manchester, England, United Kingdom
e.g. OpenTelemetry, Prometheus) Comprehensive testing across unit, integration and functional layers, including Go's built‐in testing tooling and frontend testing frameworks such as Jest or React Testing Library Go modules and dependency management Go performance fundamentals, including profiling with pprof, memory management and garbage collection behaviou Technical Excellence & Craft ...

Senior Fullstack Engineer (Go/React)

Location
City of Edinburgh, Scotland, United Kingdom
e.g. OpenTelemetry, Prometheus) Comprehensive testing across unit, integration and functional layers, including Go's built‐in testing tooling and frontend testing frameworks such as Jest or React Testing Library Go modules and dependency management Go performance fundamentals, including profiling with pprof, memory management and garbage collection behaviou Technical Excellence & Craft ...

Senior Fullstack Engineer (Go/React)

Location
Greater London, England, United Kingdom
e.g. OpenTelemetry, Prometheus) Comprehensive testing across unit, integration and functional layers, including Go's built‐in testing tooling and frontend testing frameworks such as Jest or React Testing Library Go modules and dependency management Go performance fundamentals, including profiling with pprof, memory management and garbage collection behaviou Technical Excellence & Craft ...

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

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/ ...

Web: Full Stack Tech Lead

Location
Greater London, England, United Kingdom
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 ...

Full Stack Software Engineer

Hiring Organisation
Acacia Green Technologies
Location
EC2M, Broad Street, Greater London, United Kingdom
Employment Type
Permanent
Helm; support CI/CD pipelines, container registries and environment configuration. Create unit, integration, API and end-to-end tests using tools such as Jest, Playwright and Postman; make testing part of delivery rather than a final step. Use AI-assisted development tools, including the Claude extension, to accelerate development ...

Senior Software Engineer - Investment Growth

Location
West of England, England, United Kingdom
other languages, such as PHP or Java, would also be beneficial. Experience with unit, integration, and end-to-end testing tools and practices (e.g. Jest, Cypress, Backstop, Playwright). Experience with CI/CD and Trunk Based Development. Experience with observability tools and practices, including monitoring, logging, and tracing ...

Full Stack Developer

Location
Greater London, England, United Kingdom
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. Experience with Azure DevOps is a plus. Familiarity with ...

Frontend Developer (Design Systems)

Location
Taunton, England, United Kingdom
Figma, particularly Dev Mode. Experience calling APIs and working with RESTful microservices. Hands‐on experience with Azure DevOps YAML pipelines, automated testing (for example Jest, Cypress or Playwright) and DAST tools. Experience delivering services to the Service Standard in complex government environments. A clear communicator, able to explain technical progress ...

Software Engineer III - Markets CRM - LDN

Location
Greater London, England, United Kingdom
technologies, especially AWS (Amplify, S3, Lambda) Experience with front-end build tools and bundlers (Webpack, Babel, npm, Yarn) Experience with testing frameworks and tools (Jest, React Testing Library, Cypress) Collaborate on UI/UX design and translate design mockups into code Understand accessibility (a11y) and web performance best practices Experience ...

Principal Software Engineer

Hiring Organisation
Raytheon
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Unit testing and automation Testing frameworks (e.g. Mocha, Jest, Cypress) Experience working in an Agile delivery team Use of code repositories (e.g. GitLab); familiarity with branching strategies, pull requests and merge processes We appreciate ...

Principal Software Engineer

Location
United Kingdom
Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Unit testing and automation Testing frameworks (e.g. Mocha, Jest, Cypress) Experience working in an Agile delivery team Use of code repositories (e.g. GitLab); familiarity with branching strategies, pull requests and merge processes We appreciate ...

Principal Software Engineer

Location
Greater London, England, United Kingdom
Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Unit testing and automation Testing frameworks (e.g. Mocha, Jest, Cypress) Experience working in an Agile delivery team Use of code repositories (e.g. GitLab); familiarity with branching strategies, pull requests and merge processes Benefits: £: Competitive ...

Principal Software Engineer

Location
Kingswood, England, United Kingdom
Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Unit testing and automation Testing frameworks (e.g. Mocha, Jest, Cypress) Experience working in an Agile delivery team Use of code repositories (e.g. GitLab); familiarity with branching strategies, pull requests and merge processes We appreciate ...