Front End Engineer
Vor 3 Tagen
We are looking for a Front-End Developer (React / React Native) for a 6 Month Contract based in North Sydney (2 days a week in the office). We’re looking for a highly skilled Front-End Developer with deep experience across React and React Native to join a major design system uplift and component modernization program. This is a 6-month contract based in Sydney, working closely with UX, Product, and Engineering teams to improve consistency, performance, and scalability across web and mobile platforms. The client is a leader in their field and looking for someone to help define their mobile space. What You’ll Be Doing Platform & Design System Work Audit and analyse existing React/React Native components. Identify duplication, anti-patterns, styling drift, and coupling issues. Benchmark performance (Lighthouse, Web Vitals, React Profiler, RN perf tools) and accessibility (axe). Ensure full parity between Figma and code (tokens, variants, states). Participate in design–dev reviews and provide technical feasibility insights. Clarify component behaviour, props, interactions, and edge cases. Refactor & Build Refactor components into modular, composable, typed structures (TypeScript). Implement/strengthen design tokens and theming (light/dark modes, brand variants). Build comprehensive Storybook stories that reflect all Figma states/variants. Replace legacy styling with modern CSS-in-JS or utility-first patterns. Ensure visual and behavioural consistency across web and React Native. Testing & Quality Add unit/integration tests using Jest, React Testing Library, Cypress. Use Storybook for visual regression and design reviews. Integrate linting, formatting, and type checks into CI (ESLint, Prettier, TypeScript). Accessibility & Internationalisation Ensure ARIA correctness, keyboard navigation, semantic structure. Validate screen reader and gesture support on mobile. Ensure WCAG 2.1 AA compliance across all components. Documentation & Enablement Document components and patterns in Storybook/Docs. Create contribution guidelines, coding standards, and migration notes. Partner closely with UX/Product on specs and acceptance criteria. What You Bring 5+ years experience building UI with React and React Native (iOS + Android). Strong proficiency with React 18+, TypeScript, ES6+. Skilled with modern component architecture, hooks, context, and state management (Redux, Zustand, Recoil). Advanced CSS expertise: Flexbox, Grid, custom properties, selectors. Experience with Styled-JSX (highly advantageous). Confident configuring Webpack (via react-app-rewired), Babel, Sass/CSS preprocessors. Expert-level SASS (mixins, variables, modular architecture). Strong design system experience — tokens, component specs, Figma collaboration. Storybook (web) and Expo/Storybook (RN). Testing experience with Jest, React Testing Library, Detox. Accessibility best practices (WCAG 2.1 AA). Performance profiling/optimisation for both web and RN. Comfortable with CI/CD (Bitbucket/GitHub/GitLab), branching strategies, code reviews. Strong communication and documentation skills — able to clearly explain complex UI concepts. Comfortable collaborating in Figma, Miro, Confluence. If interested please apply or email ********@siriustechnology.com.au Be careful - Don’t provide your bank or credit card details when applying for jobs. Don't transfer any money or complete suspicious online surveys. If you see something suspicious, report this job ad . #J-18808-Ljbffr
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