AI ESG Portfolio Scoring Developer

Quelion Intelligence

Remote · $100k – $130k / year · Full-time · Posted 4 months ago

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About the role

ESG scoring is broken. Most providers use the same reported data, apply the same methodologies, and produce scores with a 0.61 correlation to each other — meaning two equally reputable providers often give the same company vastly different scores. Our clients are asset managers making billion-dollar allocation decisions who want something better. We're building an alternative scoring engine that combines disclosed data, NLP analysis of company filings, satellite-derived operational data (energy use, land use, emissions), and controversy signals from news and NGO reports. The goal is a score that's more predictive of real-world ESG outcomes than anything on the market. You'll join a team of three data scientists building this engine. Your specific focus is the data integration and scoring model layer: building pipelines that ingest and normalize heterogeneous ESG data sources, developing composite scoring models with transparent methodology, and creating the audit trail that lets clients see exactly why a company received a given score.

Fully remote.

Responsibilities

Build data pipelines integrating disclosed ESG data, satellite signals, and news sources
Develop composite ESG scoring models with documented, auditable methodology
Implement score decomposition that explains individual factor contributions
Create normalization frameworks for comparing companies across sectors and regions
Build monitoring for data source availability and score stability over time
Collaborate with investment analysts to validate scoring against real-world outcomes

Requirements

3+ years in data science or analytics with ESG, sustainability, or financial data experience
Strong Python and SQL skills for data integration and analysis
Experience with composite scoring or rating methodologies
Comfort working with heterogeneous, often low-quality external data sources
Understanding of ESG frameworks: GRI, SASB, or TCFD