Senior Scientist - Ion Exchange

Kunin; Chattanooga (TN); On-site; USD 90,000 - 160,000; Full time

Job summary

A critical mineral technology firm is seeking an Ion-Exchange Scientist in Chattanooga, TN. The role involves leading the synthesis and functionalization of ion-exchange resins and optimizing column testing programs. Candidates should have a PhD in Chemical Engineering or related fields and at least 5 years of relevant experience. Compensation ranges from $90,000 to $160,000 with benefits and equity. Flexibility for extended hours during critical projects is required.

Qualifications

• 5+ years of experience in resin chemistry and hydrometallurgical separations.
• Proficient in polymerization and functionalization with control over properties.
• Experience with analytical testing methods such as SEM, BET, and FTIR.

Responsibilities

• Lead ion-exchange resin synthesis and functionalization activities.
• Develop and execute optimization protocols for column testing programs.
• Collaborate on joint development programs with ligand development partners.

Skills

Ion-exchange chemistry expertise

Analytical and physical testing

Modeling skills with software

Education

PhD in Chemical Engineering, Polymer Science, or Polymer Engineering

Tools

MetSim

HSC Chemistry

OLI Studio

PHREEQC

Job description

WHO WE ARE

Kunin Technologies is revolutionizing the critical mineral supply chain by implementing advanced separation technologies to capture value from overlooked resources.

Metals are everywhere—in solar panels, smartphones, electric vehicles—but as ore grades plummet globally, traditional extraction methods are failing. China dominates critical minerals markets by developing superior separation technologies that extract value from materials American mines discard as waste.

Utilizing Kunin Technologies’ breakthrough mass manufacturable nano-separation systems, significantly more value can be produced from each resource, reducing waste, and unlocking domestic critical mineral production.

MISSION FOR YEAR 1

Kunin is commercializing a novel ion-exchange media form factor and system design that decouples kinetics from pressure-drop, unlocking orders of magnitude improvements in throughput compared to resin-in-columns systems.

• To make IX as easy as RO.
• Define novel selective elution sequencing and train configurations for multi-species partitioning.
• Release dynamic customer unit operation cost estimation tooling from internally developed CFD Multiphysics digital twins.

WHAT YOU’LL LEAD

• Ion-exchange resin synthesis, functionalization, and conditioning tied to kinetic and selectivity objectives.
• Modelling of resin backbone composition-dependent dimensional stability.
• Lead novel resin form factor qualification and stress testing protocols.
• Column testing programs optimizing mass transfer, breakthrough, regeneration, and leakage control.
• Develop novel selective elution strategies from first principles and translating to multi-species partitioning in multi-column series or parallel pilot systems.
• Lead joint development programs with novel ligand development partners.
• Execute the manufacturing scale-up of novel ion-exchange resin media.

WHO YOU ARE

• PhD in Chemical Engineering, Polymer Science, or Polymer Engineering.
• Ion-exchange scientist with at least 5 years in resin chemistry, column science, and hydrometallurgical separations.
• Practitioner of polymerization, functionalization, and conditioning with measured control of crosslinking, porosity, swelling, and mechanical strength.
• Experimentalist fluent in analytical and physical testing — SEM, BET, FTIR, ICP-OES/MS, TGA/DSC.
• Modeler skilled in equilibrium, speciation, and kinetic frameworks using MetSim, HSC Chemistry, OLI Studio, PHREEQC.

COMPENSATION

This role will pay $90,000 - $160,000, benefits, and equity.

ADDITIONAL REQUIREMENTS

• Must be willing to relocate to Chattanooga, TN.
• Flexibility for extended hours during critical project phases.