At Ecolab, we are looking for a Proposal Engineer to join our General High Tech (GHT) team, playing a key role in the development of technical and commercial proposals for industrial and high‑tech water treatment projects.
In this position, you will collaborate closely with General Contractors (GCs), EPCs, and internal stakeholders to define project scope, prepare detailed cost estimations, and ensure alignment with EPC/EPCM execution models. This role combines strong technical expertise with commercial insight, contributing directly to winning strategic projects and ensuring a seamless transition from proposal to execution.
Objectives
- The GHT Proposal Engineer is responsible for developing technical and commercial proposals in response to requests from General Contractors for industrial, high‑tech, and infrastructure water projects. The role has a strong emphasis on scope definition, BOQ preparation, cost estimation, and alignment with EPC / EPCM execution models.

Key Responsibilities
Proposal & Tender Management (GC‑Driven Requests)
- Analyze RFQs,



and technical specifications issued by General Contractors and EPCs.
- Work closely with CAM / BDM to define deadlines and scope of work expected by customers, clarify scope boundaries between process, packages, civils, piping, E&I;, and construction responsibilities.
- Coordinate with internal engineering disciplines to ensure full technical compliance.
- Prepare technical narratives, BOQ file (Bill Of Quantity), scope descriptions, and clarifications aligned with GC tender frameworks.

Costing Development
- Fill detailed JCT (Job Costing Tool) and link to Bills of Quantities (BOQs) files required by tenders related to process equipment, packages, and associated systems.
- Quantify equipment, materials, and services based on PFDs, P&IDs;, layouts, and tender specs.
- Build cost estimates for CAPEX and installation-related items, in coordination with procurement and engineering.
- Ensure BOQs are aligned with GC cost br

📌 Proposal Engineer (España)
🏢 Ecolab Deutschland
📍 España