Job Summary We are looking for a Fullstack Developer to help build a mobile membership card solution that enables users to receive, store, and access digital membership cards seamlessly—similar to how ticketing platforms deliver passes directly to a user’s phone wallet.

In this role, you’ll work across the stack using React (frontend), .NET (backend), and SQL Server, contributing to a streamlined system that generates and distributes digital cards via email or SMS. While the product includes a mobile component, it will not require a traditional mobile app, focusing instead on lightweight, accessible experiences.

This is a great opportunity for someone who enjoys building practical, user-focused solutions with simple yet impactful functionality.

HOW WE WORK We are a remote-first, cross-functional team focused on building high-quality software through collaboration, agility, and innovation. Our development approach emphasizes:

✅ Daily commits to ensure rapid iteration and continuous improvement.

✅ Autonomous problem-solving, with a bias toward action.

✅ Honest and constructive feedback, fostering a culture of learning.

✅ Agile methodology, with short, incremental development cycles.

WHO YOU ARE You enjoy building clean, efficient systems that solve real-world problems without unnecessary complexity.

You’re comfortable working across the full stack and can move between frontend and backend tasks with ease.

You prefer pragmatic solutions over over-engineering and thrive in environments with straightforward requirements.

You’re adaptable and can work with evolving clarity, especially in early-stage or loosely defined projects.

You’re collaborative but capable of working independently with minimal oversight.

You have a strong sense of ownership and take pride in delivering reliable, production-ready features.

WHAT WE OFFER ? USD Salary Compensation

? 100% Remote Work - For now only in LATAM

? Exciting, Diverse Projects – Work on impactful,



real-world solutions.

? Career Growth Opportunities – Expand your fullstack expertise across projects.

? Supportive & Agile Team Environment – Collaborate with experienced engineers.

?? Team Building Activities – Be part of a community that values connection and collaboration.

WHAT YOU’LL DO

- Build and maintain backend services using C# and .NET Core.

- Develop frontend features using React.

- Design and work with SQL Server, including queries, stored procedures, and data management.

- Build and consume RESTful APIs.

- Work within Azure environments to support application development and deployment.

- Develop functionality to generate and distribute digital membership cards.

- Integrate email/SMS workflows to deliver cards to users.

- Collaborate through Agile/Scrum practices, Git, and Pull Request processes.

- Support testing, troubleshooting, and continuous improvement.

- Collaborate with engineers and stakeholders to deliver practical, scalable solutions.

- Contribute to large-scale migration projects when applicable.

WHAT YOU BRING

- 4+ years of experience as a Fullstack Developer.

- Strong hands-on experience with C# and .NET Core.

- Strong experience with React.

- Solid experience with SQL Server, including querying, stored procedures, and data management.

- Experience building and consuming RESTful APIs.

- Experience working in Azure environments.

- Experience with Agile/Scrum methodologies and Git-based Pull Request workflows.

- Understanding of responsive or mobile-friendly design principles.

- Strong problem-solving skills and ability to deliver simple, effective solutions.

- Experience with large-scale migrations is a plus.

- Familiarity with email/SMS integrations or notification systems is a plus.

READY TO APPLY? If you’re a Fullstack Developer who enjoys building practical, streamlined solutions and working across modern web technologies, we’d love to hear from you. Apply now and help us deliver seamless digital experiences ?

📌 Fullstack developer (.NET/REACT) (Ciudad de México)
🏢 Winmill Software
📍 Ciudad de México