Job Summary: We are looking for a Fullstack Developer with a backend (.NET) focus to orchestrate, validate, and integrate AI-generated code, ensuring solution quality and performance. Key Highlights: 1. Working in a modern AI-powered environment (Claude AI) 2. Focus on orchestration and validation of AI-generated code 3. Top 5% SME in Portugal and Happy at Work certified **Fox IT** is a Portuguese IT consulting company ranked for the 5th consecutive year among the top 5% SMEs in Portugal and, for the first time, within the national top 10 of the IT sector. Our mission is to bring a fairer approach to the IT market, promoting a more balanced exchange between us, our consultants, and our clients. Most recently, we received the Happy at Work certification, reinforcing our commitment to continuously value our people. We are seeking a **Fullstack Developer** with a strong **backend (.NET)** focus to work in a modern environment powered by Artificial Intelligence tools—specifically **Claude AI**. This role departs from traditional development models: the professional will be responsible not only for coding but, above all, for **orchestrating, validating, and integrating AI-generated code**, ensuring solution quality, consistency, and performance. **Responsibilities** * Develop and maintain applications focused on **.NET (backend)** * Integrate simple frontend components using **HTML, CSS, and JavaScript** * Use **Claude AI** to generate code blocks and accelerate development * Review, validate, and adapt AI-generated code * Ensure best practices in architecture and code quality * Coordinate and structure various application components * Collaborate with the team to define efficient technical solutions **Requirements** * Solid experience with **.NET (C\#)** * Basic/intermediate knowledge of **JavaScript, HTML, and CSS** * Problem-solving mindset and critical thinking * Ability to work with **AI tools in development** * Experience or interest in **AI\-assisted coding** (e.g., Claude, Copilot, etc.) * Strong organizational skills and system-level architectural awareness **Nice to Have** * Experience integrating APIs * Knowledge of software architecture (e.g., microservices) * Prior experience with AI tools in development * Autonomous, results-oriented profile **Work Model:** Availability for a hybrid model (2 days per week at our Lisbon offices). **What We Offer:** * 26 vacation days; * Health insurance; * €50 birthday bonus; * Extensive daily use of AI tools; * Flexibility and autonomy. Take the Leap—Join Us! Type of position: Full\-time Work location: Hybrid remote work in Lisbon