Job Summary: Mid-Level Full Stack Developer to develop and enhance an international platform serving thousands of users, with a focus on React and .NET, contributing consistently to the evolution of production applications. Key Highlights: 1. Working on an international project with real impact for thousands of users 2. Developing front-end (React) and back-end (.NET) features 3. Technical and collaborative environment with constant knowledge sharing Tech6 Group has 28 years of market experience, delivering national and international projects and building robust, scalable solutions across various industries. We are seeking a Mid-Level Full Stack Developer to work on the development and enhancement of a platform used by thousands of users in the United States, focusing on React for the front-end and .NET for the back-end. This role is intended for professionals who already work in production environments, possess strong technical confidence to handle end-to-end development, and aim to consistently contribute to application evolution within a live product context. **Your day-to-day responsibilities will include:** * Developing new features and enhancing front-end (React) and back-end (.NET) applications * Building and consuming REST APIs * Working with relational databases, including querying, tuning, and optimization * Participating in code reviews to ensure code quality, standardization, and maintainability * Collaborating with other developers, product teams, and partner areas * Fixing bugs and continuously improving applications * Following software development best practices to ensure sustainable and reliable code **Tech Stack and Technologies Used:** * Front-end: React * Back-end: C# / .NET * APIs: REST * Database: SQL Server * Code Versioning: Git **Mandatory Requirements:** * Practical experience as a Full Stack Developer * Experience with React in real-world projects * Experience with C# and .NET * Knowledge of developing and consuming REST APIs * Experience with relational databases * Knowledge of Git * Strong communication skills and ability to work effectively in a team **Nice-to-Have (non-eliminatory):** * Experience with automated testing * Knowledge of CI/CD * Experience with cloud platforms (Azure or AWS) * Familiarity with architectural best practices and clean code principles **About the Project:** You will work on an international project targeting the U.S. market, supporting a platform already in production and used daily by thousands of people. This means: * Code with real-world impact * Focus on stability and continuous evolution * Technical decisions aligned with an operational product **What You’ll Find Here:** * A technical and collaborative environment * Constant knowledge sharing * Clear expectations regarding your role * Real-world projects with consistent challenges and technical responsibility appropriate for a mid-level professional If you’re already a mid-level developer with hands-on experience in React and .NET, and you’re looking to work on a stable, international project with tangible impact, we’d love to meet you.