Material Scientist
Location: Tallinn, Estonia (On-site)
Employment Type: Full-Time
Start Date: August 2025
Your Impact
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As a Material Scientist at Jälle Technologies, you’ll drive the development and optimization of our recycled materials.
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You’ll plan and run experiments to refine processing methods, analyze and characterize materials, and ensure they meet the quality needed for real-world use. Your insights will directly shape how we scale from lab to pilot production, making sure our processes are both effective and efficient.
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By owning your part of the development, you’ll help transform battery waste into valuable new resources—and build the foundation for a more sustainable, circular future.
About the position
What you'll do
As a Material Scientist at Jälle, you’ll be at the intersection of metallurgical recovery, carbon-based material development, and advanced characterization:
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Develop and optimize chemical and thermal processes to convert recycled graphite into graphene oxide (GO) and reduced graphene oxide (rGO).
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Design and run experiments involving hydrometallurgical leaching, precipitation, or selective metal separation from battery waste streams.
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Conduct physicochemical and structural characterization (XRD, Raman, BET, AAS) to evaluate purity, performance, and application potential.
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Explore structure–property relationships and tune materials for applications in supercapacitors, electrocatalysis, coatings, or conductive additives.
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Collaborate closely with a multidisciplinary R&D team, including chemists, engineers, and circular economy experts.
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Contribute to method development, patent filings, and customer-facing technical documentation.
What we're looking for
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M.Sc. or Ph.D. in Materials Science, Nanotechnology, Chemical Engineering, or a related field.
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Experience with carbon nanomaterials, battery materials, or advanced composites.
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Proficiency in material analysis techniques (SEM, Raman, XRD, BET, etc.).
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Strong problem-solving mindset, data-driven thinking, and a passion for clean technologies.
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Excellent communication skills in English; Estonian is a plus.
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Nice-to-have:
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Prior work in battery recycling, graphene production, or graphite processing.
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Experience in scaling up from lab to pilot-scale.
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Familiarity with life cycle assessment (LCA) or techno-economic analysis.
What we offer
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A rare chance to help commercialize groundbreaking materials science from lab to pilot scale.
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Competitive salary in a high-impact startup.
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A collaborative and ambitious team with deep expertise and a strong mission.
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The opportunity to leave a lasting mark on Europe’s circular materials ecosystem.
Jälle Technologies is on a mission to transform battery waste into next-generation materials. We’re developing breakthrough solutions to recover critical metals and upcycle battery waste from used lithium-ion batteries into a material with game-changing applications in energy storage, electronics, coatings, and more.
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Backed by deep scientific expertise, grant funding, and initial industry partnerships, we’re scaling our lab innovations into an industrial reality.
Send us your CV and a short motivation letter