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Technical Project Engineer

Monthey - Plant, Sion - Office
Full-time
Permanent employee

Your mission

Technical Project Engineer
Help Scale the Next Generation of Plastic Recycling Technology
Your Mission
As a Technical Project Engineer , you will lead cross-functional technology development projects from early-stage R&D through industrial implementation and manufacturing scale-up.
You will act as the technical and project coordination lead across multiple initiatives, working closely with R&D, engineering, production, quality, suppliers, and external partners to transform innovative concepts into scalable industrial solutions.
This role is ideal for a technically strong generalist who enjoys connecting people, driving execution, and bringing complex industrial technologies to life.
Your Responsibilities
  • Lead technical assessments related to conceiving, designing, prototyping, validating, and scaling new technology and product concepts
  • Translate market requirements, business objectives, and customer needs into clear, quantifiable, and scalable engineering specifications
  • Coordinate multidisciplinary teams across R&D, engineering, production, and quality functions
  • Drive the development and validation of technical solutions from laboratory testing through pilot and commercial-scale manufacturing
  • Support the transfer of technologies and process designs from R&D into industrial implementation
  • Define project priorities, timelines, deliverables, and resource allocation aligned with company objectives
  • Coordinate suppliers, manufacturing partners, and external engineering contractors throughout the development lifecycle
  • Act as a central technical point of contact for internal and external stakeholders
  • Ensure projects progress efficiently toward technical and commercial milestones
  • As applicable, mentor or guide associate engineers, technicians, and quality staff

Your profile

Your Profile
  • Graduate degree in Chemical Engineering, Process Engineering, Mechanical Engineering, Industrial Engineering, or related disciplines
  • 5–8+ years of experience in industrial, manufacturing, engineering, or technology-driven environments
  • Experience coordinating technical development or industrial projects involving multiple stakeholders
  • Strong project and partner management experience in fast-paced, value-driven environments
  • Exposure to product development, process development, equipment development, or technology scale-up projects
  • Experience working with suppliers, manufacturers, or engineering contractors is highly desirable
  • Comfortable managing projects across a matrix organization without direct authority
  • Strong analytical thinking and problem-solving capabilities
  • Ability to adapt quickly to changing priorities and evolving project needs
  • Collaborative, hands-on, and execution-oriented mindset
  • Fluent in English; French is a plus
  • Have a Swiss working permit or be Eligible to work in Switzerland 

Why us?

We are an award-winning Swiss cleantech company transforming the future of plastic recycling.
Founded in 2020, we are a fast-growing team of ambitious scientists, engineers, and innovators dedicated to solving one of the world’s biggest sustainability challenges. After successfully building and optimizing our pilot plant, we are now scaling toward industrial deployment while continuing to advance our proprietary recycling technologies.
Joining us means becoming part of a highly collaborative and entrepreneurial environment where your work will directly contribute to the development and commercialization of breakthrough recycling technologies.
What We Offer
  • A dynamic, international, and mission-driven environment
  • High ownership and autonomy from day one
  • Flexible working hours and hybrid work options
  • Opportunity for rapid professional growth
  • Direct involvement in scaling cutting-edge industrial technologies
  • The chance to make a tangible environmental impact

About us

DePoly is a Swiss cleantech company, specializing in advanced recycling of PET and Polyester plastics. Recognized as 2024 Technology Pioneer by the World Economic Forum and winner of the Top 100 Swiss Startup Award in 2024, second place in 2025, we challenge the status quo and strive for excellence, with a shared passion for making a positive impact by tackling the global plastic problem. Founded in 2020, we are a team of young, dynamic dedicated entrepreneurs, scientists and operators who are committed to solving the plastic problem.