At Paul Marlex, we are looking for a Construction Estimator to join the team of an international company specialised in solutions and infrastructure for Data Centre projects.

The role will be responsible for preparing accurate and competitive cost estimates and project budgets, working closely with Project Managers, Quantity Surveyors and Sales teams in an international environment.

Key Responsibilities

- Review enquiry documentation, drawings and specifications to understand project requirements.
- Determine quantities from drawings and Bills of Quantities where applicable.
- Prepare cost estimates, analysing materials, labour, equipment, subcontractors and other project costs.
- Request and assess quotations from suppliers and subcontractors.
- Prepare and update project estimates and commercial offers.
- Support the preparation of tender documentation and provide relevant technical and commercial information.
- Prepare re-quotes and provide supporting information when required.
- Participate in post-tender meetings where necessary.
- Support the Sales and Quantity Surveying teams across Spain and Portugal with commercial and technical information.
- Work closely with Project Managers, Quantity Surveyors and Sales Directors throughout the estimation process.
- Use SAP and Excel for cost analysis, project information and reporting.
- Review and interpret technical drawings using AutoCAD and/or Revit.




- Collaborate with international stakeholders, communicating regularly in English.
- Travel occasionally within Spain and Portugal depending on project requirements.

What are we looking for?

- Degree in Engineering, Construction, Architecture, Project Management or a related field.
- Around 4–6 years of professional experience in construction estimation, cost estimation, tendering or similar roles.
- Experience in a construction, contracting or industrial/MEP environment.
- Solid experience in cost estimation, budgeting and preparation of commercial offers.
- Experience with mechanical installations and piping will be highly valued.
- Good knowledge of SAP; experience with Salesforce is a plus.
- Advanced Excel skills, including pivot tables and data analysis.
- Functional knowledge of AutoCAD and/or Revit for reviewing and interpreting technical drawings.
- Strong commercial awareness and ability to work with both technical and commercial stakeholders.
- Fluent Spanish and English, both written and spoken.
- Willingness to travel occasionally within Spain and Portugal.
- Valid driving licence.

If you are looking for a role where you can combine cost estimation, construction and commercial interaction within an international environment, we would be happy to hear from you.

📌 CONSTRUCTION ESTIMATOR (San Sebastián de los Reyes)
🏢 Paul Marlex
📍 San Sebastián de los Reyes