A company in the railway infrastructure sector is seeking a **Project Assistant**, with a focus on administrative control, project management, and government tenders. **Requirements:** * Mechatronics Engineering (degree holder). * Maximum age: 35 years. * Minimum 5 years of experience in administrative coordination of infrastructure projects. * Proven experience in government tenders. * Intermediate English (minimum 50%). * Experience in railway or large-scale projects is desirable. **Main Responsibilities:** * Administration and control of railway projects. * Preparation and monitoring of documentation for government tenders. * Budget, contract, estimation, and physical\-financial reporting control. * Coordination with internal departments and government agencies. * Schedule tracking and contractual compliance. **We Offer:** * Salary of $20,000 to $25,000 net per month. * Biweekly payments. * Statutory benefits. * Life insurance. * Job stability and participation in strategic projects. * Professional development in high-impact projects. **Work Location:** * Colonia del Valle, Mexico City