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Rachel (L.) S.

Expert Project Manager

Portland, United States

Experience

May 2025 - Oct 2025
6 months
United States

Expert Project Manager

Mercor.io Corporation

  • Managed multi-domain expert recruitment pipelines to staff and scale AI training projects.
  • Maintained performance dashboards to monitor key metrics, identify bottlenecks, and support quality outcomes.
  • Received hands-on LLM rubric training in task evaluation, prompt writing, and QA to enhance AI data quality.
Jan 2024 - Present
2 years
Portland, United States

Graduate Research Assistant, Agile and Adaptive Robotics (Hunt) Lab

Portland State University, Mechanical and Materials Engineering Department

  • Optimizing 3D FRESH bioprinting parameters for soft robotics applications.
  • Characterizing print and support material properties using microscopic techniques.
Apr 2022 - Jan 2025
2 years 10 months
Hillsboro, United States

Process Engineer II, Research and Development

Hitachi High-Tech America, Inc.

  • Developed an innovative pre-treatment process for a trilayer etch in advanced EUV lithography patterns, reducing line edge roughness by 59% and defectivity by 28% compared to incoming.
  • Confirmed process robustness via critical dimension measurements and electron microscopy imaging.
Jun 2020 - Apr 2022
1 year 11 months
Hillsboro, United States

Process Engineer I, Defects and Productivity

Hitachi High-Tech America, Inc.

  • Conducted design of experiment scale up tests on Hitachi dry etch tools to simulate customer defects.
  • Optimized chamber in-situ cleaning chemistries by performing optical emission spectroscopy evaluations, surface scans, wafer etch rates, and composition analysis.
Jun 2019 - Aug 2019
3 months
Des Plaines, United States

Research and Development (New Materials/Energy Storage) Intern

Honeywell UOP

  • Screened membranes, electrodes, and solution formulations for redox flow batteries utilizing half-cell, H-cell, and resistivity testing.
  • Analyzed data and developed criteria to compare membranes and electrodes.
May 2018 - Aug 2018
4 months
Mount Vernon, United States

Material Science Intern

SABIC Innovative Plastics

  • Completed a second source qualification of an acrylic impact modifier by applying various thermal, impact, and analytical tests.
  • Developed a diagnostic method to prevent discoloration of an aqueous chemical used in the production of resin.
Aug 2017 - May 2020
2 years 10 months
Terre Haute, United States

Undergraduate Chemical Engineering Researcher, Chenette Lab

Rose-Hulman Institute of Technology, Chemical Engineering Department

  • Monitored the degradation byproducts of polypropylene, polyethylene, and polystyrene after exposure to UV light to simulate plastic degradation in an aquatic environment.
Aug 2017 - May 2020
2 years 10 months
Terre Haute, United States

Undergraduate Chemistry Researcher, DeVasher Lab

Rose-Hulman Institute of Technology, Chemistry Department

  • Created an Organic Chemistry undergraduate laboratory for the synthesis of unique cyclohexadiene tautomers.
  • Defined the novel Claisen Dieckmann condensation reaction mechanism experimentally and computationally.

Languages

English
Advanced
Spanish
Intermediate

Education

Portland State University

Ph.D., Materials Science Focus · Mechanical Engineering · Portland, United States

Portland State University

M.S. · Materials Science and Engineering · Portland, United States

Rose-Hulman Institute of Technology

B.S. · Chemical Engineering and Chemistry · Terre Haute, United States

Certifications & licenses

Semiconductor Materials And Manufacturing Certificate

Portland State University

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