Fullstack Developer (Backend .NET Focus + AI-Assisted Development)

Description

Job Summary: We are seeking a Fullstack Developer with a backend focus (.NET) to orchestrate, validate, and integrate AI-generated code, ensuring solution quality and performance within a modern environment. Key Highlights: 1. Work with AI tools such as Claude AI 2. Strong backend focus with .NET and AI-assisted coding 3. Top-tier company among the top 5% of SMEs in Portugal and Happy at Work certified **Fox IT** is a Portuguese IT consulting firm ranked for the 5th consecutive year among the top 5% of SMEs in Portugal and, for the first time, in the national Top 10 of the IT sector. Our mission is to bring a fairer approach to the IT market, fostering 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 valuing our people. We are looking for a **Fullstack Developer** with a strong **backend (.NET)** focus to work in a modern environment powered by AI tools—specifically **Claude AI**. This role breaks from traditional development models: the professional will be responsible not only for programming but primarily for **orchestrating, validating, and integrating AI-generated code**, ensuring solution quality, consistency, and performance. **Responsibilities** * Develop and maintain applications with a focus on **.NET (backend)** * Integrate simple frontend components in **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 holistic system vision **We Value** * 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! Employment Type: Full-time Work Location: Hybrid remote work in Lisbon