NAHTEC is an international engineering company headquartered in Austria, with a branch in Madrid. We specialize in the design, construction, and commissioning of high-efficiency biogas and biomethane plants.
Our mission is to integrate process engineering, digital innovation, and sustainability to accelerate Europe’s clean-energy transition.
To strengthen our growing Iberia team, we are seeking a Planning Engineer / Technical Planner with strong analytical skills, engineering mindset, and passion for renewable energy systems.
Your Responsibilities:
* Planning and design of biogas plants (new constructions and retrofits)
* Plan, design, and optimize biogas and biomethane plants, both new installations and retrofits/revamping.
* Creating flow diagrams, piping and instrumentation diagrams (P&IDs)
* Develop Process Flow Diagrams (PFDs) and Piping and Instrumentation Diagrams (P&IDs) in coordination with the rest of the project teams.
* Design and specification of technical components (e.G., agitators, pumps, gas systems, tanks)
* Perform technical coordination with suppliers, authorities, and internal project teams
* Support permitting and compliance processes, preparing all required technical and planning documentation.
* Technical support throughout the project from concept to commissioning
* Provide engineering support throughout the full project lifecycle, from conceptual design to commissioning and digital handover.
Your Profile:
* Degree or technical training in Process Engineering, Mechanical Engineering, Energy Systems, or Environmental Technology (or equivalent).
* Experience in planning, engineering, or execution of biogas, wastewater treatment, or other process plants is highly valued.
* Proficiency in CAD software (e.G., AutoCAD, Solid Works) and MS Office.
* Strong technical reasoning, structured working methods, and collaborative mindset.
* Spanish and good English required, German is an advantage.
* Independent and responsible working style.
We Offer:
* Work in an innovative, international company.
* Challenging projects in the field of renewable energy.
* Possibility to work from home.
* Competitive retribution, performance-based compensation, and clear development opportunities.
* Friendly and interdisciplinary team.
* Supportive, international team culture with strong technical mentorship.
Interested?
We are an equal opportunity employer - We look forward to meeting you!
Please send your application documents to