Ink Formulation Engineer: Lab-to-Scale Innovation

eLstar Dynamics; Eindhoven; On-site; EUR 65,000 - 90,000; Full time

Job summary

eLstar Dynamics seeks a hands-on Test & Ink Formulation Engineer to drive ink development, lab-scale work, and qualification testing for our smart glass systems. You will lead test plans, characterize materials, and support the transition from lab formulation to scalable production.

You will collaborate across disciplines including electronics, mechanics, and manufacturing, ensuring reproducible results, compliant documentation, and robust test protocols.

Qualifications

• Bachelor's or higher degree in chemistry, materials science, chemical engineering, or related field.
• Experience with developing and executing structured test plans and qualification protocols.
• Hands-on lab mentality: enjoy working in the lab, running experiments and solving problems practically.
• Fluency in English (Dutch a plus).

Responsibilities

• Test engineering: develop and execute test plans, qualification protocols, reliability tests, and structured experiments to validate ink performance.
• Ink formulation and development: create, refine and optimize electrophoretic inks, dispersions, and additives from concept to validated formulation.
• Material characterization: perform measurements such as viscosity, particle size, zeta potential, stability, ageing, and optical properties.
• Hands-on lab work: prepare batches, run experiments, analyze failures, and implement improvements.
• Process development: scale formulations from lab to pilot production, ensuring consistency, reproducibility, and manufacturability.
• Documentation and compliance: maintain formulation records, test reports, chemical safety documentation, and release files.
• Stakeholder alignment: collaborate with electronics, mechanics, manufacturing, suppliers, and project management.

Skills

Test engineering

Ink formulation

Material characterization

Lab work

Process development

Documentation

Stakeholder alignment

Education

Bachelor's degree in chemistry, materials science, chemical engineering or related field

Job description

eLstar Dynamics seeks a hands-on Test & Ink Formulation Engineer to drive ink development, lab-scale work, and qualification testing for our smart glass systems. You will lead test plans, characterize materials, and support the transition from lab formulation to scalable production.

You will collaborate across disciplines including electronics, mechanics, and manufacturing, ensuring reproducible results, compliant documentation, and robust test protocols.