• Maintain and evolve the applications’ design system in partnership with developers and UX/UI designers • Design and implement complex interfaces using React.js, focusing on componentization, reuse, and performance • Take part in frontend architecture decisions (state management, folder structure, data fetching and caching strategies) • Conduct code reviews focusing on quality, readability, and best practices • Mentor less experienced developers, contributing to the team’s technical growth • Collaborate with designers to assess the technical feasibility of interfaces and interactions • Identify and resolve performance bottlenecks (rendering, bundle size, lazy loading) • Contribute to technical decisions regarding the team’s tools, libraries, and processes

• Develop complex, large-scale interfaces • Work directly with Vanilla JavaScript, without framework abstractions • Maintain and consume the Atlas design system (based on Web Components) • Integrate the frontend with backend services efficiently • Participate in technical and architectural decisions • Work on performance, observability, and quality • Ensure responsive implementations and product accessibility

• Act as a Fullstack Mobile Software Architect, designing and defining the complete solution, covering mobile frontend with Angular/Ionic and a BFF with Node/Nest, translating business requirements into technical criteria, design patterns, technical implementations and breaking down User Stories into detailed tasks; • Map and analyze the current project, identifying technical debt and proposing action plans for remediation; • Support developers in understanding the software architecture, aligning business rules, acceptance criteria, test scenarios and development requirements; • Lead and guide discussions during technical refinements, promoting clarity and alignment among team members; • Ensure compliance with pre-defined cloud architecture requirements; • Ensure an appropriate and sustainable documentation process for the projects under your responsibility; • Ensure and foster best practices for observability, testing, security and performance throughout the software lifecycle; • Define and evolve communication patterns between the mobile application and the BFF, ensuring clear API contracts, versioning and efficiency of calls; • Define and ensure the event tagging strategy for analytics, ensuring traceability, data quality and alignment with product and data teams.

• Build responsive, accessible, high-performance marketing websites using modern frameworks. • Develop and maintain reusable component libraries tied to design systems. • Implement SSR/SSG strategies to improve performance and SEO. • Integrate headless CMS platforms with scalable, component-based architectures. • Write clean, testable, well-documented code following best practices. • Debug and resolve production issues and participate in incident response. • Optimize sites for Core Web Vitals and overall performance. • Implement analytics, tracking, A/B testing, and personalization features. • Ensure accessibility compliance (WCAG 2.2 AA) and cross-browser/device compatibility. • Maintain unit, integration, and end-to-end tests. • Support CRO and experimentation initiatives. • Participate in code reviews and mentor junior developers. • Work closely with UX/UI designers to ensure accurate implementation. • Partner with marketing teams to implement technical SEO requirements. • Coordinate with analytics teams on tracking and instrumentation. • Contribute to documentation, coding standards, and architectural decisions.