Product Developer

JOB DESCRIPTION Experienced Product Developer

A Product Developer at Reju is responsible for designing, developing, and optimizing innovative products that align with sustainability and energy transition goals. This role involves collaborating with cross‑functional teams to transform concepts into market‑ready solutions, ensuring technical feasibility, quality standards, and customer requirements are met. The position requires strong problem‑solving skills, creativity, and a deep understanding of product lifecycle management within the energy and wellness sectors.

• Design polymerization trials for recycled polyester, ensuring process efficiency and product quality.
• Perform R&D fiber and melt spinning trials at pilot and commercial facilities and develop appropriate technical specifications.
• Collaborate with industry partners to develop POY, DTY, FDY, and staple yarn spinning processes and products.
• Collect, analyze, and document experimental data, prepare detailed reports and technical documentation.
• Identify opportunities for process improvements, cost reduction, and sustainability enhancements.
• Improve process and product quality based on customer and partner feedback.
• Ensure compliance with safety, environmental, and quality standards during all testing activities.
• Stay updated on advancements in polymer chemistry, recycling technologies, and fiber production.

• Experience in polymerization processes, preferably with recycled or bio‑based polymers.
• Minimum 8 years of experience, with strong understanding of polymer chemistry.
• Hands‑on experience with melt spinning processes at pilot or industrial scale.
• Ability to analyze R&D and production data, draw conclusions, and act on a path forward.
• Proficiency in data analysis, process modeling, and laboratory equipment operation.
• Excellent problem‑solving skills and ability to work independently and collaboratively.
• Strong communication skills for technical reporting and cross‑disciplinary teamwork.

Once receiving your application, a recruiter performs an initial check between your skills and qualifications with our stated requirements prior to a detailed and focused review by the hiring manager. We expect to take up to a few weeks to perform that review. You will hear from us, if we feel your skills and experience are a match, and we want to organize interviews and meet you physically or virtually depending upon the location.

To have an overview of the recruitment process, please visit our dedicated webpage here.

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