1 to 25 of 132 Jest Jobs in the UK

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/ ...

Test Manager

Location
Swansea, Wales, United Kingdom
services. Hands-on experience with test automation frameworks across API, UI, and service layers (e.g., RestAssured, Postman/Newman, Cypress, Playwright, Selenium, JUnit, Jest). Experience integrating automated testing into CI/CD pipelines (GitHub Actions, Jenkins, Azure DevOps, GitLab CI). Strong understanding of non-functional testing, including performance ...

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. ...

Front-End Lead Software Engineer Thomson Reuters

Location
Greater London, England, United Kingdom
HTML5/CSS3 – Expert RESTful APIs – Advanced AWS – Intermediate to Advanced Git version control and CI/CD pipelines Docker containerization Automated testing frameworks: Jest, React Testing Library, Playwright Performance optimization and security best practices Core competencies Technical leadership and mentorship: guiding senior and junior engineers and setting standards ...

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 ...

Lead Software Engineer (Node)

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £525 per day + Inside IR-35
experience with Node.js API development using REST and OpenAPI Web application development using HAPI Database expertise across PostgreSQL , MongoDB , and Redis Unit testing with Jest and Lab Source control using Git Cloud platform experience in AWS and/or Azure Containerisation technologies including Docker , Kubernetes , and ECS CI/ ...

Full Stack Engineer

Location
Greater London, England, United Kingdom
Microservices architecture and messaging systems (Kafka, RabbitMQ) Cloud platforms (AWS, Azure, or GCP) and containerization (Docker, Kubernetes) Testing: JUnit and Mockito on the backend; Jest, React Testing Library, and Cypress or Playwright on the frontend Due to the volume of applications received, unfortunately we cannot respond to everyone. #J ...

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 ...

Lead Engineer

Location
Greater London, England, United Kingdom
based) and underlying services/apps including the databases that underpin them. Test-Driven Development - You're very familiar with testing frameworks such as Jest and Pact. Cloud & DevOps - You can build, deploy and run your systems end-to-end, with no manual configuration or intervention. We use Terraform ...

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 ...

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 ...

Lead Fullstack Software Engineer - Java, Springboot, Microservices

Hiring Organisation
TPXImpact Holdings Plc
Location
East London, London, United Kingdom
Employment Type
Permanent
Salary
£75,000
Automation : Implementing and maintaining continuous integration/continuous deployment pipelines to accelerate development cycles. Code Quality and Testing : Experience with automated testing frameworks (e.g., Jest, JUnit) and best practices for ensuring code quality. DevOps Practices : Expertise in DevOps, particularly around automating deployment, monitoring, and scaling applications. Communication : Able to confidently ...

Software Engineer - Investment Growth

Location
West of England, England, United Kingdom
related technologies (e.g. Kubernetes, Docker and serverless).* 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 to ensure system reliability ...

UI Frontend Lead engineer - AEM & AI

Location
London, United Kingdom
frontend CI/CD practices using GitHub Actions, Azure DevOps, Jenkins, or equivalent platforms. Establish unit, integration, and end-to-end testing strategies using Jest, React Testing Library, Playwright, or Cypress. Drive Core Web Vitals improvements, bundle optimization, caching, and rendering strategies. Establish frontend code quality, security, and observability standards. ...

UI Frontend Lead engineer – AEM & AI

Hiring Organisation
LANCESOFT LTD
Location
south east england, united kingdom
frontend CI/CD practices using GitHub Actions, Azure DevOps, Jenkins, or equivalent platforms. Establish unit, integration, and end-to-end testing strategies using Jest, React Testing Library, Playwright, or Cypress. Drive Core Web Vitals improvements, bundle optimization, caching, and rendering strategies. Establish frontend code quality, security, and observability standards. ...

Full Stack Engineer (Python, React and AWS)

Hiring Organisation
Brio Digital
Location
Leeds, West Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
tested at interview. React: * Strong hands-on React with TypeScript * Micro Frontends using Module Federation * Reusable components, state and API data handling * Testing with Jest, React Testing Library or Cypress * Accessibility and performance Python: * Strong hands-on Python building production services * APIs consumed by React front ends * Serverless Python ...

Frontend Developer (Design Systems)

Location
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 ...

UI Frontend Lead engineer - AEM & AI

Location
Charing Cross, South West London, United Kingdom
frontend CI/CD practices using GitHub Actions, Azure DevOps, Jenkins, or equivalent platforms. Establish unit, integration, and end-to-end testing strategies using Jest, React Testing Library, Playwright, or Cypress. Drive Core Web Vitals improvements, bundle optimization, caching, and rendering strategies. Establish frontend code quality, security, and observability standards. ...

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
Bradley Stoke, 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 ...

Mid-Level Software Developer

Location
United Kingdom
experience building web applications using React (or similar) with TypeScript, ideally with Next.js and component libraries such as Material UI, plus unit testing with Jest and React Testing Library. Front-end Technologies: Familiarity with HTML5, CSS3 and modern JavaScript/TypeScript, with a good understanding of responsive design principles, state ...

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 behaviour You’ll demonstrate ...

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 behaviour You’ll demonstrate ...

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 behaviour You’ll demonstrate ...