Environmental Compliance Qc Lab

Sergio Zarate Montes De Oca

*** ******** *** **, *******, GA 30312 513-***-**** **********@*****.*** LinkedIn Profile

OBJECTIVE

Environmental Engineer QC Lab Analyst

Data-driven QA/QC professional with 3+ years at Nexus Circular, where I evaluated feedstock for a circular advancement recycling facility. Converted waste plastics (PE, PP, PS) into pyrolysis oil for reuse by major refiners (Exxon, Shell) as crude oil. As the primary lab QA/QC lab tech I tested 1,000+ polymer feedstocks, ensured 100% environmental compliance, and improved production quality. Multitasking pro with Lean Six Sigma certification. Seeking to parlay skills to EHS, Environmental Compliance, Lab Analyst roles to safeguard operations and promote sustainability. Experience using Agilent Chem Station (LIS) 3 years

WORK EXPERIENCE

Nexus Circular-First commercial-scale advancement recycling facility converting plastics to oil Atlanta, GA

Laboratory Quality and Control Analyst Oct 2022 – April 2025

Conducted bench-scale pyrolysis experiments to evaluate polymer compatibility, resulting in a 20% increase in successful material integration and enhancing overall product quality of oil output

Partnered with Feedstock Sourcing team to analyze acceptance proficiency of incoming polymers by identifying key contaminants affecting the intake and offtake processes; findings improved acceptance rate by 35%.

Conducted daily analytical tests of pyrolysis oil/wax for 20+ chemical parameters (N, Si, Cl, etc), to maintain high production quality.

Initiated ~3+ corrective actions/month by alerting operations of said deviations, cutting client rejections by 15%.

Optimized scrubber efficiency by testing pH daily and adjusting caustic dosing to reduce production shutdown time.

Conducted EPA-mandated stormwater inspections during rain events.

Carbon Management and Sequestration Center

Columbus, OH

Student Assistant

Oct 2019 - May 2022

Handled administrative tasks, including creating lecture notes and PowerPoint presentations for the center's head.

Assisted in lab experiments focusing on carbon dioxide storage in soil.

Managed and organized the master publication list to categorize all publications.

Battelle Memorial Institute

Columbus, OH

Critical Care Decontamination Disinfectant Technician

Jun 2020 - Aug 2020

Loaded and unloaded containment chambers with used N-95 masks to provide cleaned masks to essential workers.

Acted as shift leader when required, ensuring operational efficiency.

Calibrated gas detecting instruments daily to ensure accurate readings.

EDUCATION

The Ohio State University

Columbus, OH

Bachelor of Science in Environmental Engineering

September 2019-May 2022

SKILLS & INTERESTS

Community Involvement: Trees Atlanta (supporting local greenway management). Kate’s Club (supporting kids who have experienced a death of someone close to them)

Skills: Autodesk Inventor, AutoCAD, Laboratory Analysis, Data Analysis, Bilingual: Spanish and English, Yellow Belt Lean Six Sigma, Gas Chromatography and Mass spectrometry, Pour Point Testing, Ion Combustion Plasma, Combustion Ion Chromatography, Total Nitrogen and Sulfur, Reid Vapor Pressure, Carpet Making, Skateboarding, History & Civics

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