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# Fullstack Software Engineer - Global Billing Platform

- **Company:** Alan Sa.
- **Location:** Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Business Logic, C Sharp (Programming Language), Python (Programming Language), PostgreSQL, Oop Languages, ReactJS, Flask (Web Framework), Backend, React Native
- **Published:** July 31, 2026
- **Apply:** https://eurojobs.com/jobs/9883525/apply

## About the Role

* 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 seamlessly with internal systems and external payment platforms.
 * Automate workflows and billing schedules at scale for companies of all sizes.
 * Ensure invoices are accurate, reliable, and easy to manage for internal and external users.
 * Collaborate closely with product, design, and operations to maintain a unified, high-quality platform experience.

Why this role is special:

 * Solve technically challenging problems in a mission-critical, high-scale platform.
 * Shape the architecture of Alan's core financial systems and long-term product strategy.
 * Impact millions of members and clients, powering hassle-free experience.
 * Join a team obsessed with craftsmanship, scalability, and operational excellence.
 * Work in an environment where your ideas, designs, and decisions drive tangible outcomes.

Your playground

 * 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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- [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock)
- [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape)
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