Materials Engineer
London, United KingdomMaterials Engineer£35k–£45kPosted Jun 1, 2026
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Materials
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Shellworks London
Materials Engineer
Help us build a world without plastic pollution by championing new product development at Shellworks. Join a fast-moving team making a real environmental impact.
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📍 London, N4🏛️ 4 days in our office, 1 day from home (choose from Tue–Thu)💰 £35-45k per annum + equityAbout ShellworksAt Shellworks, we’re on a mission to make plastic waste a thing of the past. We’re creating a new generation of materials - sustainable, high-performing, and designed to disappear. By reimagining how materials are made, we’re tackling one of the world’s most urgent environmental challenges.About The RoleAs part of our fast-paced, collaborative environment, you'll have the opportunity to make a tangible impact on the planet while growing your expertise. If you're passionate about using your engineering skills to solve complex challenges and create a better future, this is the perfect role for you.Key ResponsibilitiesSupport the development, optimisation and scale-up of our materials across compounding, extrusion, injection moulding, blow moulding and film processing.Orchestrate and evaluate trials at partner sites, providing actionable, data-driven feedback to bridge materials science with equipment manufacturers and co-packers. Exploring and testing alternative manufacturing techniques to expand product capabilities.Proactively identify process inefficiencies and conduct root cause analysis on material failures or processing defects, driving continuous improvement across internal pilot lines and external manufacturing sites.Design and execute robust, repeatable lab-scale experiments to evaluate material formulations, utilizing multivariate data analysis to establish clear cause-and-effect relationships before moving to scale-up.Build internal prototyping and pilot capability, helping shape our processing infrastructure.Work with suppliers on new materials, including incoming material analysis, testing and qualification.As a member of a dynamic team, you won’t just stay in your lane. You’ll jump in...