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Zürich, Switzerland
Sion, Valais, Switzerland
Full time
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6 months internship at 80 or 100% in a stimulating working environment, with the possibility of further opportunities at the end of the internship
Being involved in the scaling up of new recycling technologies
Making the first steps in the cleantech & sustainability industry
Being part of an international team in the heart of the Swiss Alps
Learning practical, on-the-job, business skills in the world of PET recycling
Gaining experience in technology to help boost plastic circularity
Support DePoly feedstock sourcing and suppliers development as well as operations and process optimization for strategic business projects.
1. Feedstock Sourcing & Supplier Development:
Research, evaluate, and directly engage potential PET waste suppliers (waste management companies, sorting facilities, collection networks, industrial partners with PET waste streams)
Own supplier relationships, negotiating terms, troubleshooting issues, and ensuring consistent demo plant feedstock supply
Build our supplier database with quality data, pricing, volumes, logistics requirements, and reliability metrics—the foundation for scaling feedstock supply
2. Operations Systems & Process Optimization:
Build standard operating procedures (SOPs) for feedstock handling, material flow, and inventory management that will scale beyond the demo plant
Create dashboards, tracking tools, and automated reporting to enable faster decision-making
Set up processes to track feedstock batches, volumes, material specifications, and full chain of custody—moving towards industry certification standards
3. Scale-up Preparation & Strategic Projects:
Build cost models for feedstock & logistics and supply reliability assessments; own the preparation of supplier negotiation materials and partnership frameworks that will support the scale up to 100x feedstock volumes
Work closely with R&D; and Engineering to connect feedstock specifications to process performance and economics, integrating supply chain insights into our technical development
Research waste classification requirements, transport regulations, and cross-border shipment rules while building relationships with logistics partners to establish our transport network
Must Have:
You work across disciplines and are curious to learn. You ask questions to understand how feedstock quality, supplier relationships, logistics, and costs connect to get to the right solution
You take ownership and work independently. You're comfortable with ambiguity, building structure from scratch, and driving multiple projects in parallel without needing constant direction
You have a commercial and partnership mindset. You understand trade-offs and supplier incentives when structuring agreements or making decisions
Strong communication skills in English for supplier negotiations and presenting to leadership; German, French or Spanish highly beneficial
You're reliable with details and documentation, but pragmatic about finding solutions with incomplete information. You figure things out and turn ideas into action
You're willing to get hands-on in operational settings—demo plant visits, handling materials, understanding the physical process
You have a Swiss working permit or are eligible to work in Switzerland
Nice to Have:
Academic background in environmental, chemical or process engineering, supply chain, or industrial management; or prior academic or professional experience in waste management, recycling, or chemical manufacturing
Experience with or curiosity about implementing AI tools in research, production, or procurement contexts
Is this a position for you? Send us your application!
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Monthey, Valais, Switzerland
Sion, Valais, Switzerland
Full time
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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.
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
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.
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
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
Is this a position for you? Send us your application!
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Sion, Valais, Switzerland
Monthey, Valais, Switzerland
Full time
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Un environnement de travail stimulant, diversifié et dynamique.
La possibilité d'évoluer et d'élargir vos horizons au sein de notre entreprise et d'apporter un réel changement.
Participez au développement et à la mise à l'échelle de nouvelles technologies de recyclage.
Afin d'atteindre nos objectifs ambitieux en matière de développement de notre technologie de recyclage du plastique, nous souhaitons agrandir notre équipe en recrutant un opérateur d'usine.
Faire fonctionner les équipements de l'usine, contrôler et assurer le bon déroulement du processus, et résoudre les problèmes éventuels dans les installations DePoly (Sion ou Monthey)
Manipuler et traiter les nombreux produits chimiques nécessaires au fonctionnement de l'usine.
Collaborer étroitement avec les équipes d'ingénierie et de R&D pour le développement de nouveaux tests de produits et l'optimisation des processus
Rédiger des rapports et des documents sur les performances des processus.
Organisation de l'expédition des marchandises avec le responsable des expéditions.
Organisation des livraisons externes et internes.
Vérification et mise à jour régulières de l'inventaire.
Prélèvement d'échantillons lors du fonctionnement de l'usine et réalisation d'analyses simples de contrôle qualité.
Réalisation d'interventions mineures de maintenance mécanique.
Supervision des sous-traitants externes lors des interventions de maintenance.
Opérateur/technicien en chimie titulaire d'un certificat fédéral de capacité d'opérateur en chimie ou d'un niveau équivalent, acquis grâce à une expérience dans un environnement comparable.
Au moins 2 ans d'expérience professionnelle dans un environnement industriel ou une solide base dans le secteur technologique.
Capable de faire fonctionner et d'utiliser de manière autonome divers équipements et familiarisé avec les systèmes de contrôle des processus, une bonne base en chimie et une compréhension des polymères sont un plus.
Bien organisé et motivé, à l'aise pour travailler dans un environnement industriel au rythme soutenu, et doté de bonnes compétences en communication au sein de petites et grandes équipes.
Attitude proactive et positive. Adaptabilité, polyvalence et flexibilité
Capacité à travailler en équipe (horaires de jour ou travail en shifts)
Bonne connaissance du français et niveau intermédiaire en anglais
Maîtrise de Microsoft Office 365 (Excel et Word)
Maîtrise des outils de communication (e-mails)
Familiarité avec la chaîne de production (emballage, stockage, etc.)
Posséder un permis de travail suisse ou être autorisé à travailler en Suisse.
Connaissance des bonnes pratiques et de la sécurité dans l'industrie chimique
Is this a position for you? Send us your application!
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Sion, Valais, Switzerland
Full time
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6 months internship in a stimulating working environment
Being part of an international team in the heart of the Swiss Alps
Learning practical, on-the-job, chemical & process engineering skills
Become involved in the scaling up of new recycling technologies
Making the first steps in the cleantech & sustainability industry
As an intern in DePoly’s R&D Department, you will support ongoing activities in our PET plastic recycling laboratory. You will work alongside chemists and engineers to help design, develop, and optimise processes and equipment for scale-up to our commercial plant.
Work as a part of a multidisciplinary team of chemists and chemical engineers in a laboratory environment
Execute daily laboratory experiments and tasks under the guidance of lab supervisors
Support R&D and quality control projects, collaborating closely with scientists and engineers
Contribute to the optimisation of processes and unit operations for DePoly’s commercial PET recycling plant
Accurately document experimental procedures, results, and observations
Assist in data analysis and reporting to support decision-making and process improvements
Enrolled in a degree program in Chemistry, Materials Science, or Chemical Engineering
Hands-on experience in a wet chemistry laboratory
Proven ability to multitask by managing concurrent experiments while maintaining accuracy and efficiency in a fast-paced lab environment
Demonstrated strong sense of responsibility by strictly following laboratory protocols, accurate record-keeping, and safe chemical handling
Able to manage your own work and stay organised, while asking for guidance when needed
Curious and willing to learn, with a hands-on approach to picking up new responsibilities
Strong team player with good communication skills
Fluent in English; knowledge of French is a plus
Eligible to work in Switzerland (Swiss work permit or equivalent)
Nice to have: Familiarity with different analytical techniques such as UV-Vis, FTIR and NMR
Is this a position for you? Send us your application!
Nous sommes une entreprise à croissance rapide basée en Suisse. En tant que membre de DePoly, vous travaillerez dans une atmosphère multiculturelle, tout en faisant partie d'une entreprise émergente passionnante et primée.
Reconnue comme 2024 Technology Pioneer par le World Economic Forum, et lauréate du Top 100 Swiss Startup Award en 2024, nous défions le statu quo et visons l'excellence, avec une passion partagée pour avoir un impact!
La diversité est au cœur de la stratégie durable de DePoly. Nous sommes une équipe internationale venant des quatre coins du monde. Nous veillons en permanence à l'égalité des chances pour tous. Nous pensons que notre singularité et nos différences font notre force.
Nous vous offrons la possibilité de façonner un avenir plus durable et plus vert.
Découvrez de l'intérieur la vie à DePoly et apprenez à connaître vos futurs collègues.
Nous sommes toujours à la recherche de nouveaux talents pour nous rejoindre sur le chemin de la création d'un avenir meilleur pour les générations futures. Contactez-nous
Candidature ouverte
DePoly SA –
HQ
Rue de l'Industrie 23, 1950 Sion, Valais, Suisse
DePoly SA –
Showcase Plant
Route de l'Ile au Bois, 1870 Monthey, Valais, Suisse
La technologie de DePoly recycle les déchets PET sales et non triés en matières premières de qualité vierge.
Ces précurseurs du PET, le PTA et le MEG, sont utilisés par l'industrie pour produire de nouveaux plastiques sans avoir recours aux combustibles fossiles, tout en détournant des matériaux précieux des décharges et de l'incinération.
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This operation benefits from support from the European Union under the InvestEU Fund
DePoly’s technology recycles unsorted, dirty PET waste into virgin-grade raw materials. Those PET precursors, PTA and MEG, are used by the industry to produce new plastics without the need for fossil fuels, while diverting valuable materials from landfills and incineration.
DePoly SA
- HQ
Rue de l'Industrie 23
1950 Sion, Valais
Switzerland
DePoly SA
- Showcase Plant
Route de l'Ile au Bois
1870 Monthey, Valais
Switzerland
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