Summary: Seeking a Senior Full Stack .NET Developer to lead the design and evolution of internal applications, combining hands-on development with technical leadership. Highlights: 1. Lead software development projects and provide technical guidance. 2. Design, develop, test, and document new applications and enhancements. 3. Mentor and train team members, driving technical decisions. **Company Description** SGS is the world’s leading company in inspection, verification, testing, training, and certification. It is recognized as the global benchmark for quality and integrity, with over 95,000 employees and a network of more than 2,400 offices and laboratories around the world. **Job Description** We are seeking a **Senior Full Stack .NET Developer** to lead the design and evolution of key internal applications. This role combines hands‑on development with technical leadership—ensuring best practices, architectural consistency, and high‑quality delivery across the team. Responsibilities * Lead software development projects and provide technical guidance to the team. * Design, develop, test, and document new applications and enhancements to existing systems. * Apply software engineering principles to ensure scalability, maintainability, and performance. * Integrate software components into complete, functional systems. * Conduct quality assurance through verification plans, testing, and debugging. * Provide post‑implementation support, troubleshoot issues, and drive continuous improvements. * Maintain and update technical specifications, documentation, and system functionality. * Ensure compliance with project plans, internal standards, and industry best practices. * Mentor and train team members or end‑users when required. **Qualifications*** 7\+ years of experience in software development, including experience in senior or technical leadership functions. * Deep expertise in **C\#, ASP.NET, WebAPI**, and relational data models. * Strong command of **JavaScript** and frontend frameworks. * Advanced experience with **SQL Server**, performance optimization, and database design. * Experience defining and integrating technical solutions end\-to\-end. * Familiarity with **Azure** and CI/CD workflows in **Azure DevOps**. * Ability to mentor developers, lead discussions, and drive technical decisions. * Lead and manage software development projects, including coordination of technical teams.Design, develop, test, and document new applications and enhancements to existing systems. **Additional Information** * Permanent contract. * Work modality (to be defined). * One family day off per semester. * Birthday day off. * Training programs and professional growth opportunities. * Availability for travel, including potential international trips depending on project needs. * Competitive salary. * Additional **economic benefits** aimed at employee well‑being and talent retention. * **Among other benefits**