Materials Scientist, Nanoparticle Sizing and Lot Release

OpenTrain AI, Inc.; United States; Remote; USD 55,000 - 138,000; Part time

Job summary

OpenTrain AI, Inc. is seeking a Materials Scientist to evaluate TEM/SEM micrographs, size nanoparticles, assess morphology, and support lot-release decisions.

This part-time contract emphasizes precise manual analysis without automated image-tools. Candidates must have advanced nanomaterial characterization skills, experience with particle size distribution, calibration, and QC reference protocols, plus strong written and verbal communication to document methods and recommendations.

Qualifications

• Advanced knowledge of nanomaterial characterization using TEM and SEM.
• Hands-on experience with nanoparticle sizing, particle size distribution analysis, and lot-release evaluation.
• Skill in manual image analysis, thresholding, calibration, and complex morphology interpretation.
• Understanding of quality-control standards and reference-material qualification protocols.
• Strong written and verbal communication, independent technical evaluation, and sound judgment without AI-based tools.

Responsibilities

• Evaluate TEM/SEM micrographs for nanoparticle size and morphology.
• Calibrate images manually and validate measurements against reference data.
• Establish and communicate lot-release acceptance criteria using QC standards.
• Write reports covering methods, findings, and material-qualification recommendations.
• Share technical judgments in project discussions and communicate decisions to stakeholders.

Skills

Nanomaterial characterization

TEM/SEM analysis

Particle sizing

Manual image analysis

Quality control standards

Technical reporting

Tools

TEM

SEM

Job description

Materials Scientist, Nanoparticle Sizing and Lot Release

Analyze TEM and SEM micrographs, measure nanoparticle size and morphology, and support lot-release decisions. This part-time contract pays $40 to $100 per hour and requires advanced nanomaterial characterization skills.

Remote Hourly · $40–$100/hr

$40–$100/hr

Compensation

Contract, part-time

Engagement

Remote

Location

Posted

Open in 52 countries

India + more

• Algeria
• Argentina
• Austria
• Bahrain
• Bangladesh
• Belgium
• Brazil
• Canada
• Chile
• Colombia
• Denmark
• Egypt
• France
• Germany
• Ghana
• Greece
• India
• Indonesia
• Italy
• Japan
• Jordan
• Kazakhstan
• Kenya
• Kuwait
• Kyrgyzstan
• Lebanon
• Malaysia
• Mexico
• Morocco
• Netherlands
• Nigeria
• Oman
• Pakistan
• Palestine
• Peru
• Philippines
• Portugal
• Qatar
• Saudi Arabia
• Singapore
• South Africa
• Spain
• Sri Lanka
• Switzerland
• Taiwan
• Thailand
• Tunisia
• United Arab Emirates
• United Kingdom
• United States
• Uzbekistan
• Vietnam

The work

You will evaluate nanomaterial data to support nanoparticle sizing, morphology assessment, and lot-release qualification. The work centers on careful manual analysis of TEM and SEM micrographs without automated or AI-powered image-analysis tools.

• Analyze TEM and SEM micrographs for nanoparticle size, morphology, and particle size distributions.
• Calibrate images manually, apply thresholding, and validate measurements against reference data.
• Establish and communicate lot-release acceptance criteria using reference cases and quality-control standards.
• Write reports covering methods, findings, and material-qualification recommendations.
• Share technical judgments in project discussions and communicate decisions clearly to stakeholders.

What it pays and takes

This is a part-time contract role for candidates with specialized nanomaterial characterization experience. The listing is open to candidates in the countries specified for the role.

• Pay: $40 to $100 per hour.
• Work type: Part-time contract.
• Location: Open to candidates in the listed countries across North America, South America, Europe, Asia, Africa, and the Middle East.
• Required: Advanced knowledge of nanomaterial characterization using TEM and SEM.
• Required: Hands-on experience with nanoparticle sizing, particle size distribution analysis, and lot-release evaluation.
• Required: Skill in manual image analysis, thresholding, calibration, and complex morphology interpretation.
• Required: Understanding of quality-control standards and reference-material qualification protocols.
• Required: Strong written and verbal communication, independent technical evaluation, and sound judgment without AI-based tools.
• Helpful: Background in materials science, scientific consulting, or laboratory-based analytical work.
• Prior AI experience is not required.

About AI training work

AI training is the human work behind systems that learn from examples, including reviewing images and other technical data. Specialists are paid for applying careful judgment and subject knowledge that helps make those examples accurate and useful.