Chemist

Greene Resources; Durham (NC); On-site; USD 48,000 - 62,000; Full time

Job summary

Greene Resources is seeking a skilled Chemist in Durham, NC for on-site, full-time contract work focused on EPA drinking water methods.

You will develop, optimize, and validate analytical methods in an accredited lab, ensuring data integrity and regulatory compliance while leading method transfers and supporting audits.

Qualifications

• Bachelor’s degree in chemistry or a related field is required.
• Experience in method development, validation, and routine analysis in an environmental lab.
• Experience operating under a Quality Management System (QMS) is preferred.

Responsibilities

• Develop, optimize, and implement analytic methods for drinking water contaminants per EPA methods.
• Design and execute method validation studies (MDLs, precision, accuracy, linearity, robustness).
• Determine MDLs, reporting limits, and QC acceptance criteria.
• Prepare reports and support documentation for certification and audits.
• Troubleshoot GC-MS and LC-MS/MS issues and mentor staff.

Skills

GC-MS

LC-MS/MS

EPA drinking-water methods

Data integrity

QA collaboration

Documentation

Education

Bachelor’s degree in chemistry or related field

Tools

GC-MS

LC-MS/MS

SOP development

Job description

Position: Chemist

Location: Durham, NC (Onsite)

Pay: $35 to $45/hour

Type: Full-time; Contract

Schedule: Monday - Friday, 8:00am to 5:00pm

Greene Resources is seeking a Chemist to join a growing and dynamic team!

The Chemist is responsible for developing, optimizing, validating, and implementing EPA drinking water and UCMR analytical methods in an accredited laboratory. This role ensures methods and data packages meet regulatory requirements and internal quality standards through robust QC, documentation, and defensible data review (e.g., chromatograms, mass spectra, confirmation criteria, and audit trails). The Chemist leads method transfer to routine operations, troubleshoots GC-MS and LC-MS/MS issues, supports proficiency testing (PT) and audit readiness, and partners with QA, project managers, and lab leadership to deliver accurate, compliant results.

Essential Duties

Primary Responsibilities

• Develop, optimize, and implement analytical methods for organic contaminants in drinking water testing using the EPA Standard Methods
• Apply data integrity and defensibility principles, including independent data review, chromatogram and mass spectral review, ion ratio/confirmation criteria, and audit trails for data changes.
• Design and execute method validation studies in accordance with EPA standard methods (e.g., MDLs, precision, accuracy, linearity, range, and robustness).
• Determine method detection limits (MDLs), reporting limits, and quality control acceptance criteria.
• Prepare and maintain comprehensive reports and support documentation for certification and audit purposes.
• Evaluate method performance and implement improvements to enhance sensitivity, accuracy, and efficiency.
• Provide training and technical support to routine laboratory staff on the validated methods.
• Develop and update standard operating procedures (SOPs) and quality documentation.
• Troubleshoot complex analytical and instrumentation issues across GC-MS and LC-MS-MS.
• Ensure all methods comply with EPA requirements for drinking water analysis.
• Support internal and external audits, including responses to findings and corrective actions.
• Collaborate with QA staff, project managers, and laboratory leadership on method implementation and compliance strategy.

Qualifications

• Education: Bachelor’s degree in chemistry, analytical chemistry, or related field (required).

Work Experience

• 2-5+ years of experience in an environmental laboratory.
• Demonstrated experience in method development, validation, and routine analysis.
• Experience operating under a Quality Management System (QMS).

Technical Expertise (Required)

• GC-MS, e.g., VOCs, SVOCs, disinfection byproducts: Triazine pesticides and their degradation products, phenols
• LC/MS/MS, e.g., pharmaceuticals and personal care products, pesticides and fungicides, urea pesticides, carbamate pesticides, cyanotoxins, pesticides and their degradation products, Disinfection By-Products (DBPs)
• Demonstrated experience implementing EPA drinking‑water analytical methods (not just running them), including method setup, optimization, validation/verification, QC development, and documentation.
• Hands‑on experience with EPA drinking‑water methods, including a significant subset (≥50%) of the following methods:
• LC‑MS/MS – Drinking Water: EPA Method 542, EPA Method 562, EPA Method 559, EPA Method 531, EPA Method 538, EPA Method 540, EPA Method 535, EPA Method 549, EPA Method 521, EPA Method 525, and EPA Method 1694.
• GC‑MS – Drinking Water: EPA Method 523, EPA Method 515, EPA Method 527, EPA Method 528, EPA Method 525, and EPA Method 524.

Technical Expertise On Other Lab Techniques (nice-to-have)

• Experience with sample prep techniques, EG, SPE, LLE (liquid - liquid extraction).
• HPLC/UV detector, UPLC-PDA.
• HPLC/UV detector, UPLC-PDA – Drinking Water: EPA Method 555, EPA Method 532, and EPA Method 550.

Skills & Abilities

• Communicate effectively with the team regarding method readiness, risks, timelines, and regulatory expectations.
• Organize samples for storage and retrieval in secure locations.
• Maintain a strong safety culture and comply with laboratory environmental health and safety requirements.
• Comply with our client's goals to maintain a high standard of professionalism and respect.
• Ability to multitask and work with minimal supervision while collaborating cross‑functionally.
• Excellent documentation skills.
• Strong attention to detail and data integrity.
• Proficiency with MS Word, Excel, Outlook, and PowerPoint.

Physical/Mental Demands

• Remaining in a stationary position for long periods of time.
• Operating a computer and laboratory instrumentation.
• Thinking, learning, and concentrating effectively, and frequently communicating with other people, both within and outside of our client's workplace.
• Frequently moving about inside and traveling between offices and laboratories.
• Frequently conducting equipment inspections.
• Ability to handle the stress associated with meeting frequent, multiple, and tight deadlines.
• Consistent demonstration of mental stability and ability to have regular, reliable, and predictable attendance.

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