Process Engineer (Greenfield Projects)

ecolab· (ESP) Nalco Espanola, S.L.
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📍 ESP - Community of Madrid - MadridFull time

About this role

The Process Engineer is responsible for the development and execution of process engineering activities related to water treatment systems within greenfield industrial projects.

The role supports all project phases (FEL 1, FEL 2, FEED, and EPC), ensuring that water and wastewater systems are properly defined, designed, and integrated into the overall process.

The Process Engineer contributes to delivering technically robust and cost-effective solutions, focusing on water balance, treatment technologies, and compliance with environmental and process requirements. The role requires strong coordination with multidisciplinary teams and active participation in both design and execution phases.

Key Responsibilities

  • Support the development of process design for water and wastewater systems across all project phases (FEL, FEED, EPC).
  • Identify raw water requirements and characterize process effluents in coordination with process teams and clients.
  • Select and evaluate appropriate water treatment technologies to meet process and discharge requirements.
  • Develop and validate water balances, process schemes, and system configurations.
  • Perform process calculations and simulations to support equipment selection and system design.
  • Size key equipment such as storage tanks, treatment units, and utility systems.
  • Prepare and review process deliverables including PFDs, P&IDs, process design specifications (PDS), and technical reports.
  • Support the evaluation of water reuse and recycling strategies to optimize water consumption.
  • Ensure alignment between process design, environmental regulations, and project requirements.
  • Collaborate with internal disciplines (mechanical, electrical, civil, automation) and external partners.
  • Support procurement activities through preparation of technical specifications and review of vendor documentation.
  • Contribute to commissioning, start-up, and troubleshooting activities when required.

Typical Activities

  • Preparation of process documentation (BFD, PFD, P&ID, process notes).
  • Development of water balances and treatment concepts for industrial facilities.
  • Equipment sizing and process calculations.
  • Process simulation and performance validation.
  • Evaluation of treatment technologies (filtration, biological, chemical treatment, reuse systems).
  • Participation in technical meetings with clients, partners, and suppliers.
  • Support to tender preparation (technical scope definition, cost inputs, technical clarifications).
  • Contribution to design reviews and multidisciplinary coordination.
  • Occasional support to site activities, commissioning, and performance troubleshooting.

Qualifications & Experience

  • Bachelor’s or Master’s degree in Chemical Engineering, Process Engineering, or related discipline.
  • Proven experience in water treatment process engineering within industrial projects.
  • Experience in FEED and/or EPC project environments is highly desirable.
  • Strong understanding of water and wastewater treatment technologies.
  • Experience in preparation of process documentation (PFDs, P&IDs, technical reports).
  • Familiarity with process simulation tools and engineering calculations.
  • Experience working with international standards and environmental regulations is an advantage.
  • Exposure to project execution, commissioning, or site activities is a plus.

Core Competencies

  • Strong analytical and problem-solving skills
  • Structured and detail-oriented approach
  • Ability to work in multidisciplinary and international teams
  • Good communication and coordination skills
  • Proactive mindset with focus on practical solutions and delivery

What is the value of the business opportunities/pipeline and any key clients he will support?

The Process Engineer will support a portfolio of strategic greenfield projects within Ecolab’s European pipeline, focused on complex industrial water treatment systems and process integration. The role will additionally support from time to time to GHT and TWM.

The Process Engineer plays a key role in ensuring that water systems are properly designed and integrated within complex industrial projects.

By contributing to the definition and execution of robust process solutions, the role supports:

  • Reliable and compliant water and wastewater treatment systems
  • Optimization of water consumption and reuse
  • Improved project delivery through strong technical foundations
  • Enhanced competitiveness of Ecolab’s engineering solutions

Frequently Asked Questions

Is the salary disclosed for the Process Engineer (Greenfield Projects) position at ecolab?
The salary for this Process Engineer (Greenfield Projects) role at ecolab is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Process Engineer (Greenfield Projects) position at ecolab located?
This Process Engineer (Greenfield Projects) role at ecolab is based in ESP - Community of Madrid - Madrid. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Process Engineer (Greenfield Projects) role at ecolab full-time or part-time?
This is listed as a Full time position. It is posted as a Process Engineer (Greenfield Projects) role in the (ESP) Nalco Espanola, S.L. department at ecolab.
Which team or department does the Process Engineer (Greenfield Projects) at ecolab belong to?
This Process Engineer (Greenfield Projects) position is part of the (ESP) Nalco Espanola, S.L. department at ecolab. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Process Engineer (Greenfield Projects) position at ecolab?
Click the "Apply Now" button on this page. You will be redirected to ecolab's official application portal hosted on workday where you can submit your application directly.
When was the Process Engineer (Greenfield Projects) job at ecolab posted?
This Process Engineer (Greenfield Projects) position at ecolab was posted on Sep 19, 2026. Apply as soon as possible — early applications are often reviewed first.
Process Engineer (Greenfield Projects)
ecolab
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