Job Summary: Mason at Alstom, responsible for maintaining a clean and orderly worksite, preparing the work area, reviewing drawings, and executing concrete placement and finishing tasks. Key Responsibilities: 1. Collaborate in concrete receiving and Slipform paver operation. 2. Perform immediate finishing and touch-up work for final finishes. 3. Desirable experience in pavements, slabs, and railway construction projects. **Mason (3 vacancies)** **Master Mason \- Masons** ============================================================ ### **CONTACT INFORMATION** **Company:** Alstom **Economic Activity:** Electricity ### **DESCRIPTION** Main duties: \-Maintain the worksite clean, orderly, and free of elements that may cause incidents. \-Prepare the worksite by ensuring cleanliness, order, and proper arrangement of tools and materials. \-Review drawings and sketches, verifying levels, slopes, and layout axes. \-Form expansion joints, construction joints, and recesses by performing controlled cuts to depth and thickness as per design, specifications, and approved drawings. \-Collaborate in receiving concrete from mixer trucks and operating the Slipform paver, verifying slump and temperature. \-Place, distribute, and vibrate concrete according to the applied method (manual and/or automated), avoiding segregation and ensuring reinforcement cover. \-Screed, level, and control flatness using manual tools specific to the trade, correcting with a darby or trowel. \-Execute construction joints during pouring, maintaining clean edges and continuity of the slab. \-Seal joints where applicable, performing cleaning, primer application, backup cord placement, and sealant application per procedure. \-Apply curing membrane or coverings to prevent surface cracking. \-Perform immediate finishing and touch-up work: post-Appitrack finishes, corrections after formwork removal, edge definition, and repair of spalling or marks. \-Etc. Requirements: \-2 years of experience in civil works, participating in basic concrete placement, finishing, formwork, and reinforcement activities. Desirable experience in pavement and slab works, as well as railway construction projects. \-General knowledge of civil works, finishing, pavements, and general understanding of drawings related to railway track installation. At Alstom, we invite you to apply under Law 21\.690 on inclusion. Metropolitana, Santiago 14/04/2026 \- 12/05/2026 Confidential Full-time ### **REQUIRED QUALIFICATIONS** **Education Level:** **Experience:** 2 years ### **CHARACTERISTICS** **Contract Type:** Fixed-term Contract **Position Level Offered:** Other **Source of the Offer:** WEB **Professional Practice Opportunity:** No **Suitable for the following employment groups:** Persons with disabilities View job requirements