Senior Software Engineer Front end

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

Summary At Swan we empower companies to embed banking features into their products via a modern API and prebuilt front-end this role you will be a key contributor to our Front-End team responsible for building and maintaining these crucial user interfaces. You will join a team focused on delivering intuitive and performant web applications and components leveraging cutting-edge technologies.

Your mission Join our Front-End team as a Senior Software Engineer where youll take technical ownership of major features and components that thousands of developers integrate into their products. Youll design and build interfaces for Swans dashboard onboarding flows web banking and strong customer authenticationall while working with modern technologies and collaborating closely with product design and backend teams.

Main Tasks

Build beautiful performant and accessible user interfaces that make embedded banking simple and delightful for developers and end-users.

Technical Ownership & Architecture (40%)

• Take technical ownership of complex front-end projects from design to production

• Lead architecture decisions for your features ensuring scalability performance and maintainability

• Design component APIs that are intuitive and reusable across Swans platform

• Make technical trade-offs balancing perfect solutions with pragmatic delivery

• Ensure operational excellence: Build in observability error handling and resilience

• Guide technical direction during planning and design reviews

Development & Code Quality (40%)

• Ship high-quality features across dashboard onboarding forms web banking and authentication flows

• Write clean maintainable code following TypeScript and React best practices

• Implement comprehensive testing: Unit integration and e2e tests with meaningful coverage

• Optimize performance: Core Web Vitals bundle size rendering efficiency GraphQL query optimization

• Conduct code reviews: Provide thoughtful teaching-oriented feedback to team members

• Reduce technical debt: Identify and systematically improve code quality

Collaboration & Leadership (20%)

• Partner with Product & Design: Transform complex requirements into elegant user experiences

• Collaborate with backend teams: Shape GraphQL API contracts understand data models

• Mentor engineers: Help L1/L2 engineers grow through pairing reviews and guidance

• Influence team practices: Propose improvements to workflows tooling and standards

• Lead design reviews: Guide architectural discussions and challenge assumptions constructively

• Share knowledge: Document decisions present at team meetings contribute to team learning

Your Tech Stack

Core Technologies (youll use daily):

• React 18 with hooks context and modern patterns

• TypeScript with strict mode and advanced types

• Storybook for component development and documentation

Tools & Practices:

• Testing: Vitest React Testing Library Playwright for e2e

• CI/CD: GitHub Actions automated deployments feature flags

• Observability: Grafana Cloud for performance APM and errors

• Design: Figma integration design tokens responsive/adaptive design

• Collaboration: Linear for project management Slack async-first communication
  
  

Preferred experience

Youre a great match if:

• You have 5 years of experience as a Software Developer with a strong focus on front-end engineering in product-driven environments and solid skills in React TypeScript and GraphQL.

• You bring a strong UX/UI sensibility write clean and maintainable code and stay up to date with the latest front-end technologies.

• Youre passionate about building great productswhether through open-source contributions personal projects or professional work in fintech BaaS or regulatory tech.

• Youre proactive curious and able to manage and prioritize your workload independently.

• You have a professional level of English (Swan is an international team).

• Our ideal teammate: Empathetic. Skilled. Frank. We love to challenge each other and we leave our egos at the door.

Bonus Points (Nice to Have Not Required):

• Background in fintech BaaS or regulatory tech

• Open-source contributions or technical writing

• Experience building native applications with React Native (iOS/Android)

• Interest in design systems and component library architecture

• Experience with internationalization (i18n) and localization

• Knowledge of Web Accessibility (WCAG) and assistive technologies

Its okay if you dont tick all the boxes dont let imposter syndrome prevent you from applying!

Swan is committed to providing a caring work environment for all employees regardless of age sex disability sexual orientation race religion or belief.

When it comes to recruitment were interested in your work experience skills and overall personality. Because diversity makes the workplace stronger and is necessary for Swans success we are intensifying efforts to incorporate concrete actions to help us improve in this area.

About Swan

Perks of being a Swanee:

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

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

• Holidays : 25 days RTT .

• Health insurance: 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. The offers are valid in several European cities as well as online.

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

• Hybrid Remote: 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.

• 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.

Salary Transparency Statement
In compliance with the EU Pay Transparency Directive (effective as of 2026) Swan is committed to fair and transparent compensation.

Salary Range: This position is classified as Level 3 in our Software Engineer grid. The salary range reflects our internal compensation structure and is based on market benchmarks for similar roles across Europe. For this position we offer a salary between 63.000 and 75.000 Euros gross per year.

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

• Technical Interview

• Peer Interview

• Last Round with our CTO