1 to 25 of 59 Jest Jobs in the UK

IntelliJ IDEA, GitLab, Docker. Strong experience in AWS Lambda, AWS Step Functions, AWS IAM. Proficiency in unit testing (JUnit 4/5), Karma or Jest, and familiarity with BDD/TDD. Strong knowledge of relational databases (MS SQL Server preferred). Strong communication, problem solving, and critical thinking skills. Experience ...

Modern JavaScript (ES6+), HTML5 and CSS3. State management libraries such as Redux or Context API. REST APIs and asynchronous programming. Testing frameworks such as Jest and React Testing Library. Git and collaborative development workflows. Agile/Scrum delivery environments. CI/CD pipelines and modern software engineering practices. Desirable experience ...

Knowledge of state management tools such as Redux or Zustand Strong focus on performance, accessibility, and user experience Experience with testing frameworks such as Jest, Cypress, or Playwright Familiarity with Git and CI/CD practices Desirable Skills Experience with Next.js Exposure to AI-powered features or API integrations Knowledge ...

Nice to Have Event-driven architecture experience (Kafka, async patterns) Observability tools (Prometheus, Grafana, ELK) Frontend security (OAuth2, JWT) Automated testing frameworks (Cypress, Playwright, Jest) Design systems and tooling (Storybook, Figma) Experience in financial services, fintech, or payments environments Reasonable Adjustments: Respect and equality are core values to us. ...

like React Native, AngularJS, Angular2, VueJS, SocketIO, Backbone, KnockoutJS, Svelte, and Bootstrap. Software testing tools – A good working knowledge in testing code using Mocha, Jest, Unit-tests, TDD, Karma, VCS, and Selenium (base). ...

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 ...

scale, simplifying complex architectures. Understanding of CI/CD and DevOps principles (Azure DevOps experience ideal). Strong background in testing frameworks such as Jest, Playwright or Cypress. Collaborative leadership style with a passion for mentoring and continuous improvement. Experience working with micro frontends or Nx, and partnering closely with ...

similar server-side JavaScript/TypeScript environments REST APIs, ideally with Express, Nest.js or similar MongoDB and/or relational databases Unit testing with Jest or similar Working in a CI environment Clear communication and the ability to work well in a collaborative development team Useful experience AI-assisted development ...

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 ...

HTML5, CSS3 and SCSS Responsive and mobile-first development experience REST API and/or GraphQL integration experience Testing experience using tools such as Jest, React Testing Library, Cypress or Playwright Experience working with Git-based version control and CI/CD pipelines Strong knowledge of frontend performance optimisation ...

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 ...

Code (Terraform, Ansible) Data & Search Technologies Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Testing & Quality Unit testing and automation Testing frameworks (e.g. Mocha, Jest, Cypress) Delivery & Collaboration Experience working in an Agile delivery team Use of code repositories (e.g. GitLab); familiarity with branching strategies, pull requests and merge processes ...

Code (Terraform, Ansible) Data & Search Technologies Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Testing & Quality Unit testing and automation Testing frameworks (e.g. Mocha, Jest, Cypress) Delivery & Collaboration Experience working in an Agile delivery team Use of code repositories (e.g. GitLab) familiarity with branching strategies, pull requests and merge processes TPBN1 ...

Experience in building accessible compliant user interfaces (WCAG). Proven ability in delivering thorough unit level test coverage using common testing frameworks such as Jest or Mocha. Experience integrating with a wide range of technical systems including database technologies (SQL or NoSQL), caching tools such as Redis and API Microservices ...

Code (Terraform, Ansible) Data & Search Technologies Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Testing & Quality Unit testing and automation Testing frameworks (e.g. Mocha, Jest, Cypress) Delivery & Collaboration Experience working in an Agile delivery team Use of code repositories (e.g. GitLab); familiarity with branching strategies, pull requests and merge processes ...

deployment pipelines using tools like Azure DevOps or GitHub Actions. Testing Standards: Experience with unit testing frameworks (xUnit/NUnit) and frontend testing tools (Jest/Cypress) as part of standard development practices. The permanent role for a Software Engineering Lead (Full Sack) will pay a salary range ...

TypeScript (Node.js, React), MongoDB & Postgres. We use AWS for our cloud services and our infrastructure is managed with Kubernetes and Terraform. We test with Jest and Cypress, and monitor our systems with Prometheus, Grafana and Sentry. We embrace building with AI to help us deliver faster and better ...

OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Unit testing/automation and use of testing frameworks (e.g. Mocha, Jest, Cypress) We appreciate you may not be an expert in every area above - we can support with training and development in some areas! Please ...

OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Unit testing/automation and use of testing frameworks (e.g. Mocha, Jest, Cypress) We appreciate you may not be an expert in every area above - we can support with training and development in some areas! Please ...

OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Unit testing/automation and use of testing frameworks (e.g. Mocha, Jest, Cypress) We appreciate you may not be an expert in every area above - we can support with training and development in some areas! Please ...

YAML, Terraform, CloudFormation, Bash/Zsh, and modern tooling (VSCode, GitHub, Vite, Rollup, tsx, npm). Proficiency with unit, integration, and E2E testing (Vitest, Jest, Cypress, Playwright). Skilled in mocking, dependency isolation, refactoring, and peer review. Understanding of accessibility, performance, load, and security testing. Experience building and maintaining ...

OpenShift) Infrastructure as code (Terraform, Ansible) Relational databases (e.g. PostgreSQL) Elasticsearch/OpenSearch Unit testing/automation and use of testing frameworks (e.g. Mocha, Jest, Cypress) We appreciate you may not be an expert in every area above – we can support with training and development in some areas. Please apply ...

deployment pipelines using tools like Azure DevOps or GitHub Actions. Testing Standards: Experience with unit testing frameworks (xUnit/NUnit) and frontend testing tools (Jest/Cypress) as part of standard development practices. The permanent role for a Software Engineering Lead (Full Sack) will pay a salary range ...

scalable application patterns. Experience integrating RESTful APIs and backend services. Experience building performant, accessible and responsive user interfaces. Strong experience with automated frontend testing (Jest, React Testing Library, Playwright or Cypress). Experience with CI/CD pipelines and cloud‐hosted frontend deployments. Excellent communication skills with the ability ...

team. This is non‐negotiable. Rigorous engineering standards – fluency with Git-based workflows, trunk-based development, CI/CD (ideally GitHub Actions), comprehensive testing (Jest, React Testing Library, Playwright), and a genuine commitment to accessibility, performance and secure-by-default coding. Technical leadership without the title – a track record ...