12 of 12 Jest Jobs in London

delivery and a unified customer experience. 4. Governance, Security & Quality Ensure accessibility (WCAG 2.1), internationalization (i18n), and performance benchmarks are consistently met. Establish frontend testing strategy using tools like Jest, React Testing Library, Cypress, etc. Partner with security teams to implement secure-by-design frontends aligned with SaaS compliance needs (e.g., OWASP, SSO, GDPR). Required Qualifications Bachelor's or More ❯

directly influence trading performance. What You’ll Be Doing Building UIs with modern tech such as React, ES6, Node.js, TypeScript, GraphQL, SQL/NoSQL, Redux, CSS-in-JS, Webpack, Jest, Enzyme Delivering high-quality, well-tested, and maintainable code Collaborating with internal stakeholders to plan, coordinate, and gather feedback Contributing to the full product lifecycle, from concept to deployment Championing More ❯

IAM/Auth0). Deep understanding of SDLC, Agile delivery, and cross-functional collaboration (Product, UX, QA). Proficient in CI/CD, Docker, Git, and test frameworks like Jest and Cypress. Strong communication skills able to bridge technical and non-technical stakeholders. Experience with Jira for sprint planning and delivery tracking; familiarity with Figma for UI handoffs. Track record More ❯

API development Event Driven Architecture, Event Systems Messaging Queues WebSockets SQL, NoSQL DevOps - CI/CD, Docker, GitHub. Desirable skills: WebAssembly IaC AWS Cloud Development Kit Integration testing using Jest or similar NextJS This is an urgent vacancy so if you are interested then please apply quoting reference 102889. React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 More ❯

with a strong focus on React Native . Deep understanding of JavaScript/TypeScript , mobile performance optimization, and component-based architecture. Solid knowledge of mobile development workflows, debugging, testing (Jest, Detox), and CI/CD. Experience integrating RESTful APIs and third-party libraries. Strong communication and leadership skills, with a track record of mentoring developers and promoting coding standards. Nice More ❯

gRPC + protobuf, NATS, SQS Frameworks & Tools: Fiber, Express, Gin, Docker, AWS Amplify (plus) AWS Services: Lambda, ECS, ECR, RDS, CloudWatch, SQS, SNS, SES, Cognito, Redis, S3, CloudFront Testing: Jest, wire-mock, localstack Blockchain: Solana (Helius, Anchor framework, SPL token, Token 2022), Ethereum Monitoring: DataDog, CloudWatch Requirements 4+ years of backend development experience. Production experience with GoLang (preferred) and NodeJS. More ❯

visualisations at scale Mentor peers on accessibility and performance-first development Tech Ecosystem You’ll Shape Design Tokens · Figma API · Storybook · React · Web Components · TypeScript · Tailwind CSS · Vite · NextJS · Jest · Cypress · Playwright What You Bring 8+ years in large-scale web apps, 2+ in design-system architecture Strong perspective on tokens, theming, multi-brand support Mastery of React + TypeScript More ❯

visualisations at scale Mentor peers on accessibility and performance-first development Tech Ecosystem You’ll Shape Design Tokens · Figma API · Storybook · React · Web Components · TypeScript · Tailwind CSS · Vite · NextJS · Jest · Cypress · Playwright What You Bring 8+ years in large-scale web apps, 2+ in design-system architecture Strong perspective on tokens, theming, multi-brand support Mastery of React + TypeScript More ❯

visualisations at scale Mentor peers on accessibility and performance-first development Tech Ecosystem You’ll Shape Design Tokens · Figma API · Storybook · React · Web Components · TypeScript · Tailwind CSS · Vite · NextJS · Jest · Cypress · Playwright What You Bring 8+ years in large-scale web apps, 2+ in design-system architecture Strong perspective on tokens, theming, multi-brand support Mastery of React + TypeScript More ❯

visualisations at scale Mentor peers on accessibility and performance-first development Tech Ecosystem You’ll Shape Design Tokens · Figma API · Storybook · React · Web Components · TypeScript · Tailwind CSS · Vite · NextJS · Jest · Cypress · Playwright What You Bring 8+ years in large-scale web apps, 2+ in design-system architecture Strong perspective on tokens, theming, multi-brand support Mastery of React + TypeScript More ❯

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 ❯

and a salary up to £120k, this role combines technical leadership with hands-on engineering across a modern stack: AWS (Lambda, Step Functions, DynamoDB, Postgres, CDK), TypeScript, React, Next.js, Jest, Playwright, CI/CD and observability tools. You'll help establish and grow the Core Services team, building scalable architecture, developer tooling, and platform services that power multiple product squads. … to discuss. Engineering Manager, Software Engineering Manager, Technical Lead, Senior Full Stack Engineer, Staff Engineer, AWS Lambda, AWS Step Functions, AWS DynamoDB, AWS Postgres, AWS CDK, TypeScript, React, Next.js, Jest, Playwright, CI/CD, DevOps, Observability, Monitoring, SaaS, HRTech, Hybrid Jobs London, Remote, Scale-up, Scalable Architecture. More ❯