Material Scientist
Location: Tallinn, Estonia (On-site)
Employment Type: Full-Time
Start Date: August 2025
Your Impact
As a Material Scientist at Jälle Technologies, you’ll drive the development and optimization of our recycled materials.
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.
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.
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.
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