26 to 50 of 153 Jest Jobs in the UK

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 ...

Software Engineer

Hiring Organisation
Hackajob Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
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 Please ...

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 ...

Software Engineer

Location
Manchester, England, United Kingdom
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 Role ...

Senior Java Developer

Location
Manchester, England, United Kingdom
with relational and non-relational databases such as Oracle and PostgreSQL. Strong focus on automated testing (unit, integration, UI) using frameworks such as JUnit, Jest, Selenium, Cucumber Studio, and Allure. Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related field. Personal Attributes Essential: Strong critical thinking ...

Principal Software Engineer

Hiring Organisation
Hackajob Ltd
Location
Gloucester, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
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 ...

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 ...

Lead Full-Stack Software Engineer

Hiring Organisation
TPXImpact Holdings Plc
Location
United Kingdom
Employment Type
Permanent
Salary
£85,000
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, XUnit) and best practices for ensuring code quality. DevOps Practices: Expertise in DevOps, particularly around automating deployment, monitoring, and scaling applications. Communication: Able to confidently ...

Senior Full Stack Engineer - Vialto Rewards -

Hiring Organisation
Vialto Partners
Location
London, UK
Employment Type
Full-time
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 ...

Principal Software Engineer / Senior Full-Stack Software Engineer

Location
Manchester, England, United Kingdom
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 ...

UI / NextJS Developer

Hiring Organisation
DNS Info Ltd
Location
Glasgow, Glasgow City, City of Glasgow, United Kingdom
Employment Type
Contract
Contract Rate
£350 - £450/day Inside IR35
Redux, Zustand, Context API or similar state-management frameworks. Experience with Next.js SSR, SSG and ISR. Experience with Front End testing frameworks such as Jest, React Testing Library or Cypress. Experience with CI/CD and cloud-based application deployment. Understanding of web performance optimization and accessibility standards. Experience Level ...

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 ...

Principal Software Engineer

Location
Manchester, England, United Kingdom
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) Benefits & Work Culture Benefits: Contributory Pension Scheme (up to 10.5% company contribution) 6 times salary ‘Life Assurance’ with pension 25 days holiday (increasing with ...

Full-Stack Engineer

Hiring Organisation
Wheely
Location
London, UK
Employment Type
Full-time
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 ...

Full Stack Developer

Location
Greater London, England, United Kingdom
modern React patterns Commercial experience building and consuming REST APIs Working knowledge of backend technologies (Node.js, Ruby) Solid understanding of frontend testing (Vitest, Jest) Understanding of clean code within both OOP and FP Experience with PostgreSQL and SQL optimization Proficiency with Git and modern CI/CD practices Understanding ...

Senior AI Consultant - Agentic AI & Generative AI

Location
Brighton, England, United Kingdom
environments. Strong Python (3.10+), TypeScript, JavaScript (ES6+), SQL and Bash. Front-end: React.js, Next.js (App Router & Server Components), Tailwind CSS, ShadCN UI, Redux, Zustand, Jest, Cypress plus AI product UX patterns such as streaming, review loops, provenance/citations, long-running tasks and error recovery. Back-end: Django (5.x+ ...

Senior Frontend Developer

Hiring Organisation
Rullion Managed Services
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700/day
Components Material UI (MUI) Radix UI Framer Motion Custom Design Systems APIs & Data GraphQL REST APIs Contentful CMS React Hook Form Zod Testing Vitest Jest Testing Library Playwright Storybook MSW Axe/Pa11y DevOps & Infrastructure AWS Terraform GitLab CI Vercel OpenTelemetry Sentry New Relic Please note: Should your application ...

Principal Software Engineer

Hiring Organisation
Hackajob Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
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 ...

Principal Engineer

Location
Greater London, England, United Kingdom
driven systems in the cloud, and of running an engineering team or squad previously.* Test-Driven Development: Very familiar with testing frameworks such as Jest and Pact.* Architecture & Problem Solving: Able to architect a system that scales, handles high throughput and integrates seamlessly with a complex ecosystem.* CI/ ...

Senior AI Consultant - Agentic AI & Generative AI

Hiring Organisation
Deerfoot Recruitment Solutions
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
environments. Strong Python (3.10+), TypeScript, JavaScript (ES6+), SQL and Bash. Front-end: React.js, Next.js (App Router & Server Components), Tailwind CSS, ShadCN UI, Redux, Zustand, Jest, Cypress plus AI product UX patterns such as streaming, review loops, provenance/citations, long-running tasks and error recovery. Back-end: Django (5.x+ ...

Contract - Senior CXE Engineer - Amazon Connect

Hiring Organisation
INNOVATIVE TECH PEOPLE LTD
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
primary tool and CloudFormation or Terraform where customer environments require them Build and maintain CI/CD pipelines (GitHub Actions) and automated test suites: Jest/Vitest unit tests, Playwright E2E and API tests, and integration tests against live Connect instances Follow phased rollout patterns for production contact centers where ...

Frontend Software Engineer

Location
Hunmanby, England, United Kingdom
sharing types where practical Testing and quality Write and maintain automated tests across the testing pyramid: unit and component tests (for example Vitest or Jest with React Testing Library) and end‐to‐end tests (for example Playwright) Use API mocking (for example Mock Service Worker) to test components and flows ...

Senior Consultant - Agentic AI / Generative AI

Location
Manchester, England, United Kingdom
projects demand.* Languages & Frameworks: Python (3.10+), TypeScript, JavaScript (ES6+), SQL, Bash · Frontend: React.js, Next.js (App Router & Server Components), Tailwind CSS, ShadCN UI, Redux, Zustand, Jest, Cypress.* Build AI product UX patterns (streaming, review loops, provenance/citations, long-running tasks, error-recovery* Backend: Django (5.x+), DRF, FastAPI, Pydantic, Celery, Django ...

Senior Consultant - Agentic AI / Generative AI

Location
Glasgow, Scotland, United Kingdom
projects demand.* Languages & Frameworks: Python (3.10+), TypeScript, JavaScript (ES6+), SQL, Bash · Frontend: React.js, Next.js (App Router & Server Components), Tailwind CSS, ShadCN UI, Redux, Zustand, Jest, Cypress.* Build AI product UX patterns (streaming, review loops, provenance/citations, long-running tasks, error-recovery* Backend: Django (5.x+), DRF, FastAPI, Pydantic, Celery, Django ...

Senior Consultant - Agentic AI / Generative AI

Location
Newcastle upon Tyne, England, United Kingdom
projects demand.* Languages & Frameworks: Python (3.10+), TypeScript, JavaScript (ES6+), SQL, Bash · Frontend: React.js, Next.js (App Router & Server Components), Tailwind CSS, ShadCN UI, Redux, Zustand, Jest, Cypress.* Build AI product UX patterns (streaming, review loops, provenance/citations, long-running tasks, error-recovery* Backend: Django (5.x+), DRF, FastAPI, Pydantic, Celery, Django ...