Senior QC Lab Chemist and S

Our teams provide trusted energy and environmental testing and measurement solutions that protect communities, support critical infrastructure, and safeguard the environment. We are seeking an experienced and highly technical Senior Chemist to join our environmental lab in Conroe, TX .

This is a great opportunity for a hands‑on analytical expert who can lead from the bench while helping drive laboratory performance. Reporting to the Lab Manager, the Senior Chemist will serve as a key technical partner and day‑to‑day resource for the laboratory team, taking ownership of complex methods, instrumentation, data quality, investigations, and technical problem‑solving.

The ideal candidate combines deep analytical expertise with the judgment, initiative, and communication skills needed to mentor others, resolve operational challenges, and support a fast‑paced, high‑volume laboratory.

What You’ll Do Serve as a senior technical resource, providing guidance, resolving technical escalations, and supporting workflow and turnaround priorities

Perform advanced trace metals analysis on environmental and QC samples in accordance with EPA methods and lab procedures

Review and validate analytical data, results, LIMS documentation, and QA/QC to identify instrument drift, matrix interferences, analytical discrepancies, and sample anomalies

Develop, validate, transfer, and optimize analytical methods, SOPs, work instructions, and controlled lab documentation

Train and mentor lab staff on analytical methods, instrumentation, SOPs, QA/QC, and troubleshooting

Operate and maintain ICP and ICP-MS instrumentation, including calibration, performance verification, maintenance, troubleshooting, and repair

Lead investigations involving nonconformances, method deviations, root cause analysis, and CAPA

Support audits, data integrity, ISO 17025, NELAC/TNI, and regulatory compliance

Partner with leadership to improve workflow, capacity, continuous improvement initiatives, and overall lab performance

Requirements What We’re Looking For Bachelor’s degree in Chemistry, Environmental Science, or a related scientific field

5+ years of progressive analytical lab experience in a regulated environment, including technical leadership, training, and mentorship

Advanced hands‑on experience with ICP and ICP-MS instrumentation, including operation, calibration, maintenance, and troubleshooting

Demonstrated experience with analytical method development, including validation/verification, transfer, optimization, and implementation

Strong knowledge of QA/QC, data integrity, CAPA, audit support, EPA methods, and TNI/NELAP requirements

Proficiency with Microsoft Office and LIMS

Work Schedule Full‑time, on‑site position

Flexibility to work overtime, including evenings or weekends, as needed to support operational demands

What We Offer Competitive hourly pay

Annual reviews with consideration for performance‑based increases

Medical, dental, and vision coverage

Employer‑paid life, AD&D, and disability insurance

Paid time off, sick leave, and paid holidays

Employee Assistance Program (EAP)

Tuition reimbursement and professional development support

Our Commitment to Diversity and Inclusion At SPL, we believe that a diverse team is a strong team. We make all employment decisions based on qualifications, merit, and business needs, without regard to race, color, religion, sex, gender identity or expression, sexual orientation, national origin, age, disability, veteran status, or any other legally protected characteristic. We are also committed to providing reasonable accommodations to applicants and employees with disabilities or for sincerely held religious beliefs, in accordance with applicable laws. If you need assistance or an accommodation during the application process, please let us know.