Location: Paris (Central)

Remote: Hybrid (up to 3 days/week)

Apply at: [email protected]

Marble is a fintech infrastructure startup backed by top-tier VCs and Hexa (eFounders). We are building a next-generation open-source decision engine that empowers banks, payment providers, and marketplaces to fight fraud effectively.

We are a small, focused team based in central Paris. After successfully launching our first 20+ customers into production, we are expanding our founding team. We are looking for a builder who cares about product quality and user experience to help us take our platform to the next level.

You will join as a core member of the engineering team, working hand-in-hand with our Founding Front-End Lead. Your primary goal is to build and polish the client-facing application that our customers use daily—specifically the Rule Builder and Case Management dashboard.

This is a unique opportunity to work on a modern stack (Remix/React) while being mentored by senior industry experts.

Build & Ship: Develop new features for our dashboard using React, Remix, and TypeScript. You will turn designs into clean, reusable code.

Collaborate: Work closely with the Back-End team to ensure our APIs serve the needs of the Front-End, and partner with the Founders to refine the product experience.

Own your Quality: You take pride in what you ship. You write tests, fix bugs, and ensure the UI looks and feels professional.

Learn & Grow: You will gain exposure to the full software lifecycle in a startup—from database design to deployment pipelines—and have the space to grow into a senior role.

Our Tech Stack: Go, TypeScript, PostgreSQL, React + Remix, GitHub Actions.

Experience: You have 2 to 5 years of experience building web applications (or equivalent high-intensity experience, e.g., excellent bootcamp + 1.5 years active dev work).

Tech Stack: You are comfortable with TypeScript and React. You understand hooks, state management, and component lifecycles.

Product Sensibility: You care about the "why." You don't just write code; you want to build a tool that helps users solve real problems.

Eye for Detail: You notice when a button is misaligned or an animation feels clunky. You value a polished user interface.

Communication: You value transparency. You are comfortable writing down your thoughts and asking for help when you get stuck.

Language: Fluent in English (Oral and Written). French is a plus but not required.

Experience with Remix or Next.js.

Interest in server-side topics (Go, SQL) – we are happy to teach you!

Experience or interest in Fintech/Payments.

We are a team: We are ambitious, but we leave our egos at the door. We support one another to get the job done.

We value clarity: We prefer a simple, working solution over a complex, perfect one.

We are flexible: We care about output, not hours. We offer a hybrid setup to help you balance deep work and collaboration.

We share ownership: As an early employee, your voice matters in shaping both the product and our company culture.

Competitive Salary: €45,000 – €60,000, based on experience.

Equity: Significant BSPCE (Stock Options) package—you are part of the success you build.

Remote: Up to 3 days remote per week.

Health: Top-tier health insurance (Alan or similar).

Food: Meal vouchers (Swile/Ticket Restaurant).

Gear: Latest MacBook Pro and equipment of your choice.

Intro Call (30 min): Chat with Pascal (CTO) to get to know each other and discuss the role.

Product/Culture Call (30 min): Chat with Arnaud (CEO) to understand the vision and team dynamics.

Take-Home Challenge (3-4h): A practical React exercise (no whiteboard algorithms!).

Review & Debrief (1h): We walk through your code together to understand your thinking.

Research shows that women and underrepresented groups often only apply to jobs if they meet 100% of the qualifications. If you feel you have the core skills (React/TS) and the drive to learn the rest,

please apply! We are looking for potential, not just a checklist.