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Job Summary: Serve as a technical reference in evolving a SaaS platform, contributing to architectural decisions and elevating the team's technical level. Key Highlights: 1. Evolution of a consolidated SaaS platform with direct business impact. 2. Work with modern technologies: React, .NET, REST APIs, and databases. 3. Opportunity to influence structural and architectural product decisions. **About the Project** You will serve as a technical reference in evolving a SaaS platform used daily by thousands of agents across the United States. It is a mature system with continuous operation and direct business impact. Here, the challenge is not "starting from scratch", but responsibly evolving the system, maintaining stability, and sustaining technical decisions that support scalability and continuity. Tech6 has 28 years of market experience, operating nationally and internationally. This is a real product context, with active customers, a structured roadmap, and consistent deliveries. We seek someone who contributes beyond execution: elevating the team’s technical level, participating in architectural decisions, and helping maintain long-term consistency. **What You’ll Do** * Develop and evolve front-end (React) and back-end (.NET) features in production environments * Design, build, and review REST APIs with a focus on performance and maintainability * Work with relational databases, including modeling, optimization, and impact analysis * Actively investigate and resolve production issues * Lead and qualify code reviews, promoting standards and best practices * Support technical decisions alongside the team and partner areas * Contribute to long-term architectural evolution and code sustainability **Requirements** * Minimum of 4 years of production Full Stack development experience * Advanced proficiency in React (component architecture, performance, patterns, and state management) * Solid experience with C# and .NET, applying principles such as SOLID and Clean Code * Ability to model, analyze, and optimize relational databases in high-volume scenarios * Experience with automated testing (unit and/or integration) * Experience with CI/CD practices **Nice-to-Haves** * Experience with Azure or AWS * Prior work on high-availability systems * Experience serving as a technical reference or mentor to other developers **Work Model** 100% remote (Brazil). We value clear communication, accountability for deliverables, and maturity to work autonomously. If you are already a senior developer seeking a stable environment with real technical challenges and room to influence structural product decisions, this is an opportunity to work with depth and consistent impact.
