Front-end Software Engineer

About

Swan is Europes embedded banking specialist. We empower software companies to embed banking features like accounts cards and payments directly into their products under their own processes over 1.5 billion in monthly transactions for more than 150 companieslike Pennylane Indy Agicap Libeo and Lucca. Founded in 2019 the company has received growth capital from leading investors such as Lakestar Accel Creandum Bpifrance and Eight Roads. Swan is a principal member of Mastercard and a licensed financial institution regulated by the French banking authority (ACPR).

Our mission

Banking belongs in business software

Many software companies already serve small businesses incredibly well: helping them send invoices run payroll manage inventory and more. Theyre on a mission to become the central hub for managing every aspect of business life.

But when it comes to financial workflows theres still a gap. Too many critical tasks like managing cash flow tracking payments or reconciling accounts happen outside the software across spreadsheets email threads banking portals.

Its a missed opportunity. Business software shouldnt just record financial activity it should run it.

To learn more about us: About Swan ; Our story.

Job description

Swan is building the future of embedded banking in Europe. We empower companies to seamlessly integrate banking features into their products through our modern GraphQL API pre-built front-end components and comprehensive administration tools. As we scale to serve thousands of businesses and millions of end-users were looking for talented engineers who want to craft exceptional user experiences that developers and end-users love.

Your mission

As an Front-End Software Engineer youll be an autonomous contributor within our focused front-end teama center of excellence across our 70 engineering organization. Youll work hands-on building and refining the visual face of Swans platform across two critical surfaces:

1. Swans Component Library: The ready-to-use front-end components that our partners integrate directly into their productsenabling them to build banking experiences without starting from scratch

2. Swans Interfaces: The dashboards and tools that thousands of developers and millions of end-users interact with daily

This is a role for engineers ready to own features end-to-end from design discussions through production deployment. Youll collaborate closely with product designers backend engineers and product managers while growing your technical expertise in a demanding high-impact environment. Youll have the opportunity to shape how companies build financial experiences contribute to our open-source component ecosystem and grow toward senior engineering roles.

Your responsibilities

Feature Ownership & Delivery (35%)

• Own features end-to-end across both the component library and internal interfaces from technical design through production deployment and monitoring

• Work autonomously on projects with limited uncertainty delivering value on time

• Reduce scope intelligently when needed to meet deadlines without compromising quality

• Handle unexpected complications without derailing timelinesyoure resourceful and pragmatic

• Deliver consistently building trust with your team through reliable execution

Component Library Development & Maintenance (15%)

• Build and maintain reusable components that are intuitive flexible and maintainableyour users are other developers

• Ensure backward compatibility and handle breaking changes gracefully with clear migration paths

• Write comprehensive documentation including usage examples props API accessibility guidelines and integration guides

• Provide developer support by triaging issues reviewing partner implementations and improving DX based on feedback

• Optimize for bundle size and performancepartners integrate your components into their production apps

Technical Execution & Code Quality (25%)

• Write production-grade React TypeScript and GraphQL code thats clean maintainable and well-tested

• Provide insightful code reviews and approve PRs independently helping elevate the entire team

• Write comprehensive tests (unit integration visual regression accessibility) covering edge cases and critical user paths

• Design reliable components considering failure modes edge cases and varied integration contexts

• Implement security and performance best practices ensuring interfaces are fast accessible and secure

• Propose refactoring to reduce technical debt and improve maintainability across both codebases

Collaboration & Communication (10%)

• Collaborate effectively across teams to solve complex problems spanning front-end backend and partner integrations

• Explain technical concepts clearly to non-technical stakeholders (product design QA) and to partner developers

• Gather feedback from partners using the component library and translate it into improvements

• Provide timely constructive feedback to peers in code reviews and design discussions

• Participate in technical interviews evaluating candidates and representing our engineering culture

Production Operations & Continuous Improvement (15%)

• Monitor component usage and performance across partner implementations

• Create meaningful dashboards and alerts for the services you own

• Participate in on-call rotation responding to incidents affecting both our product and partner integrations

• Investigate production issues independently including debugging issues in partner implementations

• Handle deployments and rollbacks autonomously coordinating breaking changes with affected partners

Youre a great match if:

Technical Excellence

• You have 2-5 years of professional software development experience with demonstrated growth and increasing autonomy

• Youre highly skilled in React TypeScript and GraphQLthese are your daily tools not aspirations

• You write clean tested maintainable code and care deeply about code quality

• You 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)

• Youre comfortable with Git workflows CI/CD pipelines and modern development tooling

• You understand responsive design accessibility (WCAG) and performance optimization

Component Library & Developer Experience (Highly Valued)

• Youve built or contributed to reusable component libraries or design systems

• You understand component API design principles (composition flexibility sensible defaults)

• You think about developer experience as a product: intuitive APIs clear documentation helpful error messages

• Youre 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 consumers

• You care about bundle size tree-shaking and performance in library contexts

• Youve 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 cases

• You understand distributed systems fundamentals (async communication event-driven patterns error handling)

• Youre 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 degradation

• Youre curious about how front-end connects to backend (APIs GraphQL queries/mutations real-time subscriptions)

Collaboration & Ownership

• You take ownership of features from concept to production thinking about user impact and business value

• You balance product work with platform workunderstanding when to build for Swan vs. when to build for partners

• You communicate proactively about status blockers and technical decisions

• You can explain technical concepts to different audiences: engineers product managers and partner developers

• Youre comfortable working across the stack when needed (debugging backend issues understanding database queries)

• You can work with limited supervision and handle ambiguity without losing momentum

Passion for Craft

• You have a strong UX/UI sensibility and care about the details that make interfaces delightful

• You 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 team

• Youre passionate about building great products whether through personal projects open-source contributions or professional work

• You have professional-level English (Swan is an international team)

Our Ideal Teammate

• Empathetic: You understand your team users and stakeholders

• Skilled: You combine technical depth with growing leadership abilities

• Frank: You communicate directly and value honest feedback

• No ego: We love to challenge each other and we leave our egos at the door

Bonus Points (Not Required)

• Experience with design systems (Radix Shadcn Material-UI Ant Design) or building component libraries from scratch

• Familiarity 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 systems

• Experience 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)
  

About Swan

Perks of being a Swanee:

• Our hybrid remote policy offers the best of both worlds: a great office setting and the flexibility to work remotely with at least 3 days each month in our Parisian office.

• Relocation package available (If you want to settle in Paris)

• Holidays : 25 days RTT

• Meal Vouchers: We provide a Swile card to cover your meals on work days.

• Transport: Monthly mobility package for accordance with the company agreement for sustainable mobilities you can now use your mobility package to pay for alternative commuting modes.

• Health insurance (mutuelle): Alan. This is Swans health and welfare insurance.

• Sports: Thanks to our partnership with Classpass and Gymlib you can enjoy advantageous discounts on subscriptions. They offer a wide range of sports activities as well as wellness activities.

• Well-being support: access to Moka Care for mental health and wellness.

• Offsite: Once a year we gather to reconnect deep-dive into big topics and relax.

• This isnt a perk it should be the rule but diversity and inclusion are important at Swan. Were working hard to get better every day.

Our values:

Swans core values guide our actions daily. Individually they may seem obvious but together they form a unique culture.

Simplicity: Leonardo Da Vinci said: simplicity is the ultimate sophistication. If somethings convoluted or confusing we work extra hard to break it down. - Making complex things simple is what we do.

Long Term: We always play the long game whether its to support our partners in their growth journey or make tangible commitments to climate action.

Excellence: We are a team of experts who consistently go all out to create pixel-perfect banking services and exceed our partners expectations whatever it takes.

Be Human: We believe in the power of kindness and the importance of acting with integrity. But embracing our humanity extends beyond interpersonal interactions it means caring about greater issues that affect our planet.

You can find out more about our culture.

Recruitment process

• A 30-min video call with our Talent Acquisition Manager to get to know you understand your career expectations and answer your questions

• CTO Interview

• System Design Interview

• Peer Interview with Product/Product Design