- MBR Technology / Wastewater Treatment / Hybrid Working -A leading company in the water treatment and environmental technology sector is currently recruiting a Wastewater Treatment Engineer specialising in Membrane Bioreactor (MBR) technology.

The role will support the design, development, and optimisation of wastewater treatment solutions, including process engineering, plant design, technical feasibility studies, and system performance optimisation.

The successful candidate will work closely with international engineering teams, external technical partners, and customers.

The adecuado candidate should have practical wastewater treatment engineering experience and strong technical knowledge of MBR technology.

Main Responsibilities

Conduct technical analyses and feasibility studies for industrial and municipal wastewater treatment projects

Design, size, and optimise Membrane Bioreactor (MBR) wastewater treatment plants and systems

Perform process calculations, hydraulic assessments, and technical evaluations

Develop technical specifications, process flow diagrams (PFDs), and engineering documentation

Evaluate wastewater characteristics and treatment requirements to optimise system performance

Provide technical support for MBR system integration, installation, commissioning, and operation

Troubleshoot wastewater treatment processes, membrane performance, and system efficiency issues

Coordinate with external engineering consultancies, equipment suppliers, technical partners, and customers

Ideal Candidate

Bachelor's or Master's degree in Environmental Engineering, Chemical Engineering, Process Engineering,



or a related technical discipline

At least 3 years'

experience in wastewater treatment engineering, process design, or technical project development

Strong technical knowledge of MBR technology, including biological treatment processes and membrane filtration systems

Experience in wastewater treatment plant design, sizing, process calculations, and technical feasibility assessments

Understanding of BOD, COD, TSS, nitrogen removal, and membrane filtration performance

Experience in technical troubleshooting, process improvement, and wastewater treatment plant performance assessment

Fluency in Spanish and English, both spoken and written

AutoCAD knowledge and Portuguese language skills are advantageous

Willingness to travel for site inspections, technical assessments, and project-related activities

Conditions

Location:Catalonia, Spain

Working Style:hybrid, 3 days a week in office, 2 days working from home

Salary:competitive, depending on experience

Job Type:permanent, full-time

Working Hours:Monday to Friday, 9:*:00, travel for business needed for up to 50% of working time

Start:ASAP

*All applicants for the Wastewater Treatment Engineer position must have the right to work in Spain without any restrictions as the Company is not able to offer visa support.

*We regret that we cannot accept applications from Working Holiday, Graduate or Student visa holders.

If your application is successful, you will be contacted within two business days.

We regret that due to the high volume of applications we receive we cannot provide feedback on individual CVs.

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