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Principal Process Engineer - Membrane Development

Donaldson Company
relocation assistance, remote work
United States, South Carolina, Greenville
Oct 01, 2025

Donaldson is committed to solving the world's most complex filtration challenges. Together, we make cool things. As an established technology and innovation leader, we are continuously evolving to meet the filtration needs of our changing world. Join a culture of collaboration and innovation that matters and a chance to learn, effect change, and make meaningful contributions at work and in communities.

As a Principal Process Engineer in the Purilogics business unit at Donaldson Company, you will play a key role in advancing membrane-based chromatography products. You will lead the design, optimization, and scale-up of chemical synthesis processes critical to our product development as well as assist with the successful technology transfer from R&D to manufacturing. This role requires in-depth knowledge of chemical and engineering principles, hands-on technical expertise, and strong leadership in driving projects from early development through technology transfer. You will collaborate cross-functionally with R&D, manufacturing, quality, and supply chain teams to ensure robust, efficient, and cost-effective processes.Qualified candidates must be able to work an on-site schedule at our Greenville, SC office.

Role Responsibilities:

  • Lead chemical synthesis projects focused on membrane functionalization, including planning, execution, and reporting, while ensuring on-time delivery.
  • Design, optimize and scale up processes for new and existing products, with a focus on efficiency, reproducibility, and high quality.
  • Develop and execute experimental studies, analyze data, and generate recommendations for process improvements.
  • Design and establish test methodologies to support process development and validation
  • Prepare and review technical documentation, including protocols, reports, and process descriptions, and deliver presentations as needed.
  • Collaborate with R&D teams to transfer technologies into manufacturing, ensuring smooth scale-up and implementation.
  • Support troubleshooting of complex process issues and provide technical guidance to cross-functional teams.
  • Act as a technical lead by providing guidance and mentorship to emerging R&D scientists and engineers.
  • Communicate results and analyses effectively to stakeholders to support decision-making.
  • Support other operational activities as required.

TRAVEL: Up to 10%

Minimum Qualifications:

  • PhD and 3+ years of relevant industrial experience in chemical synthesis process development, scale-up, or manufacturing; advanced materials industry or 5+ years of relevant industrial experience in chemical synthesis process development, scale-up, or manufacturing; advanced materials industry and Master's degree in Chemical Engineering, Chemistry, Mechanical Engineering, Material Science, or related field.
  • Experience in scaling up wet chemical processes.
  • Experience with statistical analysis (e.g. ANOVA, t-test, capability analysis), DoE (Design of Experiments), and process modeling tools.
  • Proficient in MS Office: Outlook, Word, Excel, and PowerPoint

Preferred Qualifications:

  • Experience in collaborating with cross-functional teams while meeting strict deadlines.
  • Proven track record of leading projects and delivering results in a fast-paced environment.
  • Strong knowledge of chemical and physical principles applied to process engineering.
  • Knowledge of biology and chromatography technology
  • Adaptable to changing priorities and evolving business goals.
  • Excellent organizational skills; able to manage multiple projects and tests simultaneously while effectively planning and completing tasks.
  • Self-motivated and capable of executing assignments with minimal oversight.
  • Able to provide technical support to team members as needed
  • Quick to learn and adapt to new information and skills
  • Strong problem-solving skills and a hands-on approach to technical challenges.
  • Excellent communication and writing skills, with the ability to work effectively across multidisciplinary teams.
  • Comfortable working independently and as part of a team.
  • Experience with statistical and engineering software, e.g. Minitab, Matlab, AutoCAD

Relocation: This position is not eligible for relocation assistance.

Immigration Sponsorship Not Available:

  • Applicants for this position must be currently and legally authorized to work in the United States without the need for current or future sponsorship (e.g., H-1B, J-1, F-1, CPT, OPT, etc.).

  • Donaldson will not offer immigration sponsorship or assume sponsorship of an employment visa for this position.

  • International relocation or remote work arrangements outside of the U.S. will not be considered.

Key Words: Membrane, Scale up, Chromatography, Statistical Software

Equal Opportunity Employer, including Disability and Veterans

Employment opportunities for positions in the United States may require use of information which is subject to the export control regulations of the United States. Hiring decisions for such positions are required by law to be made in compliance with these regulations. Applicants for employment opportunities in other countries must be able to meet the comparable export control requirements of that country and of the United States.

Donaldson Company has been made aware that there are several recruiting scams that are targeting job seekers. These scams have attempted to solicit money for job applications and/or collect confidential information, Donaldson will never solicit money during the application or recruiting process. Donaldson only accepts online applications through our Careers | Donaldson Company, Inc. website and any communication from a Donaldson recruiter would be sent using a donaldson.com email address. If you have any questions about the legitimacy of an employment opportunity, please reach out to talentacquisition@donaldson.com to verify that the communication is from Donaldson.

Our policy is to provide equal employment opportunities to all qualified persons without regard to race, gender, color, disability, national origin, age, religion, union affiliation, sexual orientation, veteran status, citizenship, gender identity and/or expression, or other status protected by law.

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