Open to opportunities

Roberto Fajardo Duro

@robertofajardoduro

Data Engineer transforming on-chain and financial data into real-time analytics, risk intelligence, and strategic decision dashboards.

Spain

Message

What I'm looking for

I want to build real-time data infrastructure—ETL pipelines, dashboards, and ML-driven insights—for DeFi and financial institutions, turning fragmented on-chain/credit data into institutional-grade intelligence that improves risk and investment decisions.

I’m a Data Engineer and Strategic Analyst with 5+ years of experience in financial data architecture and risk engineering. As Founder & Data Engineer at ORWEE, I designed and deployed a full-stack AWS architecture supporting a real-time ETL system for 50M+ on-chain data points, and built a custom Lending Risk Dashboard for concentrated liquidity.

On the analytics side, I implement ML to identify yield-optimization opportunities and funding-rate arbitrage across multiple chains. Previously, at Bank Sabadell I led renewal of a manager scoring model (+15% allocation precision), optimized SQL/SAS workflows to reduce data processing latency by 30%, and ensured strict data integrity for regulatory reporting.

Experience

Work history, roles, and key accomplishments

Current

Founder & Data Engineer

Current

Orwee

Mar 2023 - Present (3 years 2 months)

Designed and deployed an AWS cloud architecture supporting a real-time ETL system for 50M+ on-chain data points. Built a Lending Risk Dashboard and implemented ML to identify yield-optimization and funding-rate arbitrage opportunities across multiple chains.

AWS Data Pipelines Machine Learning Dashboarding

Freelance Data Scientist

Plutus

Nov 2023 - Jan 2024 (2 months)

Automated 80% of recurring reporting with Python-based ETLs, improving operational efficiency by 40%. Created interactive Power BI/Metabase dashboards to support C-level decisions across 10+ DeFi protocols.

Python ETL Power BI Metabase Data Visualization SQL