Emplois actuels liés à Front-end Software Engineer - Paris - Swan

Front-end Software EngineerCDI — Paris, Bordeaux · Télétravail fréquent — Salaire : Non spécifiéPoste non localisable dans ce format; résumé: vous rejoindrez une équipe front-end autonome et contributionnelle, avec responsabilité sur les surfaces critiques de Swan.Le posteDescriptif du poste✨ Your missionAs an Front-End Software Engineer, you’ll be an autonomous contributor within our focused front-end team—a center of excellence across our 70+ engineering organization. You’ll work hands-on building and refining the visual face of Swan’s platform across two critical surfaces:Swan’s Component Library: The ready-to-use front-end components that our partners integrate directly into their products—enabling them to build banking experiences without starting from scratchSwan’s Interfaces: The dashboards and tools that thousands of developers and millions of end-users interact with dailyThis is a role for engineers ready to own features end-to-end, from design discussions through production deployment. You’ll collaborate closely with product designers, backend engineers, and product managers while growing your technical expertise in a demanding, high-impact environment. You’ll have the opportunity to shape how companies build financial experiences, contribute to our open-source component ecosystem, and grow toward senior engineering roles.✨ Your responsibilitiesFeature Ownership & Delivery (35%)Own features end-to-end across both the component library and internal interfaces, from technical design through production deployment and monitoringWork autonomously on projects with limited uncertainty, delivering value on timeReduce scope intelligently when needed to meet deadlines without compromising qualityHandle unexpected complications without derailing timelines—you’re resourceful and pragmaticDeliver consistently, building trust with your team through reliable executionComponent Library Development & Maintenance (15%)Build and maintain reusable components that are intuitive, flexible, and maintainable—your users are other developersEnsure backward compatibility and handle breaking changes gracefully with clear migration pathsWrite comprehensive documentation including usage examples, props API, accessibility guidelines, and integration guidesProvide developer support by triaging issues, reviewing partner implementations, and improving DX based on feedbackOptimize for bundle size and performance—partners integrate your components into their production appsTechnical Execution & Code Quality (25%)Write production-grade React, TypeScript, and GraphQL code that’s clean, maintainable, and well-testedProvide insightful code reviews and approve PRs independently, helping elevate the entire teamWrite comprehensive tests (unit, integration, visual regression, accessibility) covering edge cases and critical user pathsDesign reliable components considering failure modes, edge cases, and varied integration contextsImplement security and performance best practices, ensuring interfaces are fast, accessible, and securePropose refactoring to reduce technical debt and improve maintainability across both codebasesCollaboration & Communication (10%)Collaborate effectively across teams to solve complex problems spanning front-end, backend, and partner integrationsExplain technical concepts clearly to non-technical stakeholders (product, design, QA) and to partner developersGather feedback from partners using the component library and translate it into improvementsProvide timely, constructive feedback to peers in code reviews and design discussionsParticipate in technical interviews, evaluating candidates and representing our engineering cultureProduction Operations & Continuous Improvement (15%)Monitor component usage and performance across partner implementationsCreate meaningful dashboards and alerts for the services you ownParticipate in on-call rotation, responding to incidents affecting both our product and partner integrationsInvestigate production issues independently, including debugging issues in partner implementationsHandle deployments and rollbacks autonomously, coordinating breaking changes with affected partnersVoir plusProfil recherchéTechnical ExcellenceYou have 2-5 years of professional software development experience, with demonstrated growth and increasing autonomyYou’re highly skilled in React, TypeScript, and GraphQL—these are your daily tools, not aspirationsYou write clean, tested, maintainable code and care deeply about code qualityYou understand modern front-end architecture patterns (component composition, state management, data fetching strategies)You have experience with testing strategies (unit tests with Jest/Vitest, component testing, e2e with Playwright/Cypress, visual regression)You’re comfortable with Git workflows, CI/CD pipelines, and modern development toolingYou understand responsive design, accessibility (WCAG), and performance optimizationComponent Library & Developer Experience (Highly Valued)You’ve built or contributed to reusable component libraries or design systemsYou understand component API design principles (composition, flexibility, sensible defaults)You think about developer experience as a product: intuitive APIs, clear documentation, helpful error messagesYou’re familiar with library tooling (bundlers, tree-shaking, CSS-in-JS, TypeScript type generation)You understand versioning strategies and how to evolve public APIs without breaking consumersYou care about bundle size, tree-shaking, and performance in library contextsYou’ve written technical documentation for developers (not just end-users)Architecture & System Design (Growing Skills)You can design reliable components that work in varied integration contexts, considering failure modes and edge casesYou understand distributed systems fundamentals (async communication, event-driven patterns, error handling)You’re learning about system design trade-offs (consistency vs. availability, performance vs. maintainability, flexibility vs. simplicity)You understand common patterns like circuit breakers, retries with exponential backoff, and graceful degradationYou’re curious about how front-end connects to backend (APIs, GraphQL queries/mutations, real-time subscriptions)Collaboration & OwnershipYou take ownership of features from concept to production, thinking about user impact and business valueYou balance product work with platform work—understanding when to build for Swan vs. when to build for partnersYou communicate proactively about status, blockers, and technical decisionsYou can explain technical concepts to different audiences: engineers, product managers, and partner developersYou’re comfortable working across the stack when needed (debugging backend issues, understanding database queries)You can work with limited supervision and handle ambiguity without losing momentumPassion for CraftYou have a strong UX/UI sensibility and care about the details that make interfaces delightfulYou think about developer experience as a product itself (component APIs, documentation, ease of integration)You stay current with front-end technologies and bring new ideas to the teamYou’re passionate about building great products, whether through personal projects, open-source contributions, or professional workYou have professional-level English (Swan is an international team)❤️ Our Ideal TeammateEmpathetic: You understand your team, users, and stakeholdersSkilled: You combine technical depth with growing leadership abilitiesFrank: You communicate directly and value honest feedbackNo ego: We love to challenge each other, and we leave our egos at the doorBonus Points (Not Required)Experience with design systems (Radix, Shadcn, Material-UI, Ant Design) or building component libraries from scratchFamiliarity with component library tooling (Storybook, Chromatic, Ladle)Familiarity with bundler tooling (tsup, Rollup, Vite)Experience with monorepo management (Turborepo, Nx, pnpm workspaces)Understanding of CSS-in-JS solutions (Styled Components, Emotion, Vanilla Extract)Contributions to open-source component libraries or design systemsExperience with automated testing strategies (visual regression testing, contract testing, accessibility testing)Familiarity with fintech, embedded banking, or regulatory technology (PCI DSS, GDPR, strong customer authentication)Understanding of system architecture beyond front-end (databases, message queues, distributed systems)Experience working in product-driven environments with cross-functional teams (Product, QA, Security, Platform)Experience supporting external developers (developer relations, technical writing, community management)Voir plusDéroulement des entretiensA 30-min video call with our Talent Acquisition Manager, to get to know you, understand your career expectations and answer your questionsCTO InterviewSystem Design InterviewPeer Interview with Product/Product DesignEnvie d’en savoir plus ?Meet Alix Baggio, Software EngineerRencontrez David, Engineering Manager #J-18808-Ljbffr