LENIN ZARATE DIAZ

• Full lifecycle project leadership in multidisciplinary construction projects.
• Scope, schedule, and cost control using earned value methodology.
• Led the technical and commercial bidding process, coordinating with engineering and procurement teams to deliver comprehensive project estimates. Detailed engineering review and quality assurance.
• Contract administration and invoice validation.
• Risk monitoring and mitigation strategies.
• Coordination between client, contractors, and inspection teams.
• Construction

• Supervised contractor compliance regarding technical specifications and safety standards in production station construction.
• Monitored physical vs. scheduled progress, identifying critical path deviations to implement corrective actions.
• Reviewed and approved 'As-Built' documentation and mechanical completion dossiers.
• Review of calculation reports and technical specifications.
• Inspection and Test Plan (ITP) verification.
• Pre-commissioning and commissioning matrix compliance.

• Supervised contractor compliance regarding technical specifications and safety standards in production station construction.
• Monitored physical vs. scheduled progress, identifying critical path deviations to implement corrective actions.
• Reviewed and approved 'As-Built' documentation and mechanical completion dossiers.
• Review of calculation reports and technical specifications.
• Inspection and Test Plan (ITP) verification.
• Pre-commissioning and commissioning matrix compliance.

• EPC contract management and control.
• SAP work order management and invoicing.
• Cash flow monitoring and budget control.
• Procurement coordination and contractor evaluation.
• Coordinated multi-disciplinary teams for the delivery of surface facilities and piping systems.
• Supervised workshop fabrication of static equipment, pressure vessels, and pump skids procurement

Lead for static equipment and piping installation; interaction with auditing/inspection (interventoría) to ensure technical scope compliance, progress measurement (work progress reports), technical deviations, and review of construction procedures and technical documentation.

Project control (scope, time, cost, and other project areas) to meet client contractual terms.

Supervision and interconnection of equipment assembly; commissioning of auxiliary systems.

Technical personnel management and leadership of piping & mechanical teams for site meetings and committees.

Commissioning support and final project delivery to the client (including protocols, as-built drawings, and final reports).

• Fire protection system design and implementation under NFPA standards.
• Technical-commercial proposal development.
• Detailed engineering and commissioning supervision.
• Performed stress and thermal analysis using specialized software (AutoPipe, Caesar II) to ensure structural integrity.
• Development of Techno-Economic Proposals

• Specialized Engineer in the design of fire suppression and detection systems under NFPA standards.
• Lead Assembly Engineer for networks, equipment, and piping of fire protection systems in process plants, ensuring compliance with scope, cost, and schedule.
• Client Management & Quality Leadership: Validated construction procedures and technical documentation for welding and construction under ASME .
• Commissioning & Startup: Provided support for the pre-commissioning and commissioning of fire protection systems.