Mid-Level Full Stack Developer (React + .NET)

Description

Job Summary: We are looking for a Mid-Level Full Stack Developer to enhance an international production platform, with autonomy and real impact. Key Highlights: 1. Working on an international platform with real impact on thousands of users 2. Full Stack development (React and .NET) in a production environment 3. Opportunity for professional growth on a live and challenging product Tech6 Group has 28 years of market experience, delivering national and international projects and building robust, scalable solutions across various industries. We seek a Mid-Level Full Stack Developer with hands-on production experience to evolve a live platform used daily by thousands of users in the United States. This role is ideal for professionals who already work autonomously, possess strong technical confidence to handle end-to-end development, and wish to grow professionally within a live-product context delivering real impact. **Your day-to-day responsibilities** * Develop and enhance front-end (React) and back-end (.NET) features * Design and consume REST APIs * Work with relational databases, including querying, tuning, and optimization * Fix bugs and continuously improve applications * Participate in code reviews to ensure code quality and standardization * Collaborate with other developers, product teams, and partner areas * Follow software development best practices to ensure sustainable and reliable code **Mandatory Requirements** * Practical experience as a Full Stack Developer * Real-world React experience * Experience with C# and .NET * Knowledge of REST API development and consumption * Relational database experience * Git proficiency * Strong communication skills and ability to work effectively in a team **Nice-to-Have (non-eliminatory)** * Experience with automated testing * CI/CD knowledge * Cloud experience (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 — a platform already in production and used daily by thousands of people. This includes: * Code with real impact * Continuous enhancement of existing features * Technical responsibility aligned with mid-level expectations Work model: Hybrid, based in Florianópolis. On-site attendance occurs on days coordinated with the team (approximately 1–2 times per week). If you are already a mid-level developer with practical React and .NET experience and seek growth in a stable, challenging, and impactful project, we want to meet you.