Senior Carbon Modeler - Remote, Scale Validation Pipelines

Varaha; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Varaha is seeking a Senior Carbon Modeler to advance the modeling science behind our agricultural carbon projects. You will drive calibration, validation, and uncertainty quantification for VM0042 projects, turning ad-hoc scripting into reproducible, version-controlled pipelines that work across geographies.

You will defend model selection and uncertainty treatment in PDDs, monitoring reports, and reviewer responses, while coordinating with the India-based science team and leading the

Qualifications

• You have authored or co-authored a Model Validation Report end-to-end and submitted under Verra, Gold Standard, or similar registry.
• You have real calibration and parameterization experience with DayCent, DNDC, DSSAT, or similar.
• Strong grasp of VM0042 and VMD0053 methodologies, and where structural validation ends and back-modeling begins.
• Proficient Python and Git for production pipelines; comfortable handling geospatial data.
• MS or PhD in soil science, agronomy, biogeochemistry, environmental science, or related field.
• Comfortable working remotely with consistent overlap with an India-based team; travel as needed.

Responsibilities

• Run VMD0053-compliant calibration, validation, and uncertainty quantification for VM0042 projects.
• Write Model Validation Reports and respond to VVBs and evaluator queries including Corrective Action and Clarification Requests.
• Design and build Python-based modeling pipelines versioned in Git for cross-region use.
• Defend model choices and uncertainty treatment across PDDs and monitoring reports.
• Help set technical standards as the modeling team scales.

Skills

Model Validation Reports

Python Programming

Uncertainty Quantification

Soil Carbon Modeling

Calibration & Validation

Git Pipelines

Geospatial data

Education

MS or PhD in soil science / agronomy / biogeochemistry / environmental science

Tools

Python

Git

DayCent

DNDC

DSSAT

Job description

Varaha is seeking a Senior Carbon Modeler to advance the modeling science behind our agricultural carbon projects. You will drive calibration, validation, and uncertainty quantification for VM0042 projects, turning ad-hoc scripting into reproducible, version-controlled pipelines that work across geographies.

You will defend model selection and uncertainty treatment in PDDs, monitoring reports, and reviewer responses, while coordinating with the India-based science team and leading the