Innovation Process Engineer (m/f/d) - Reju

Technip Energies Abu Dhabi
Frankfurt am Main
JOB DESCRIPTION

At Reju, you join a purpose-led company helping to build the Circular Textile System.

Our purpose is to transform textile waste into a valuable resource and accelerate the transition to a circular textile industry. Joining Reju means combining purpose with action in a company where people are trusted to take ownership, move fast, and create meaningful impact.

Reporting to the Head of Process Development & Scale-up, the Innovation Process Engineer will play a key role in improving Reju's existing recycling technologies while shaping the next generation of process solutions. This position combines hands-on process optimization at the Frankfurt demonstration plant with the development of future process concepts in collaboration with leading technology partners, engineering companies, and research institutions.

Innovation Process Engineer (m/f/d) unlimited contract

Why Reju? - We offer:
  • Meaningful work with global environmental impact and the opportunity to help shape a truly circular textile industry.
  • Significant ownership and influence over key technology and scale-up decisions.
  • An entrepreneurial culture built on trust, transparency, collaboration, and accountability .
  • The opportunity to collaborate with an international, multidisciplinary team united by a shared purpose and ambition.
  • Professional development and career growth opportunities as Reju continues to grow.
  • Flexible ways of working with a strong focus on outcomes and impact.
  • Competitive compensation and performance-based rewards.
  • The chance to contribute to one of the most advanced chemical recycling technologies driving textile circularity.
Your responsibilities will include:
  • Become a technical expert in Reju's current recycling processes through hands-on work at the Frankfurt demonstration plant, identifying and implementing opportunities for process optimization, improved operability, and increased efficiency.
  • Lead and support development projects aimed at transforming key batch operations into continuous industrial processes, with particular focus on extraction, crystallization, precipitation, solid-liquid separation, and related unit operations.
  • Collaborate with external partners, technology providers, universities, and engineering companies to evaluate, test, and scale innovative process technologies for future commercial plants.
  • Design, execute, and analyze laboratory, pilot, and demonstration-scale trials, translating results into process improvements and technology development roadmaps.
  • Support technology scale-up activities by developing process concepts, mass and energy balances, engineering data packages, and technical recommendations for future facilities.
Your profile:
  • Master's degree or PhD in Chemical Engineering, Process Engineering, Industrial Chemistry, or a related discipline.
  • Minimum 3 years of industrial experience in process development, process engineering, pilot plant operation, scale-up, or technology development; experience with solid-liquid systems, crystallization, extraction, precipitation, or polymer-related processes is highly desirable.
  • Strong understanding of chemical process design and scale-up principles, with the ability to bridge laboratory findings and industrial implementation.
  • Demonstrated experience working with external partners, research organizations, engineering contractors, or equipment suppliers.
  • Fluent English is mandatory; German is considered a strong advantage.
Are you curious?

Then we look forward to receiving your detailed application documents, stating your salary expectations and possible starting date to Michelle Cascante.

Reju

#LI-MC2
Veröffentlicht am 2026-07-24

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