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# Fullstack Software Engineer - Core Billing Platform

- **Company:** Alan
- **Location:** Eu, France (Remote available)
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Business Logic, C Sharp (Programming Language), Python (Programming Language), PostgreSQL, Oop Languages, ReactJS, Flask (Web Framework), Reliability of Systems, Backend, React Native
- **Published:** May 21, 2026
- **Apply:** https://fr.indeed.com/viewjob?jk=0ddf13023004543a

## About the Role

Do you have experience in React Native?, * We are looking for software engineers of all experience levels, ideally with backend / full-stack experience.

 * Passionate about navigating complex business logic and system dependencies.
 * Experienced with scalable, resilient platform design.
 * Well-versed in OOP languages (Python, Java, C#).
 * Fluent in English (French is a plus but not required).
 * Curious, self-starting, humble, collaborative, and eager to grow.

## Description

* Build the core billing engine: process thousands of transactions daily with precision and reliability.
 * Design modular, reusable billing primitives and abstractions that scale across products and regions.
 * Integrate with payment gateways, partner APIs, and internal systems.
 * Automate billing schedules and workflows across multiple countries.
 * Ensure system reliability, accuracy, and operational excellence.
 * Collaborate with product, design, and operations to create a unified platform., * Stack: Python/Flask, React, React Native, PostgreSQL.
 * What you'll do: ship scalable, reliable systems and build the backbone of Alan's billing operations.
 * Impact: your work directly unlocks new services, countries, and exciting deals. It then supports their reliable operation.


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