RF.
Available for work

Hey, I'm Roberto Fajardo

5+ years of experience. Data & AI Engineer and Statistician. Specialized in building scalable cloud infrastructure, predictive models, and end-to-end data pipelines for complex financial and AI systems.

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Work Experience

Data Scientist & Data Hub Specialist

Banco Sabadell

September 2024 - Present

Model Optimization: Promoted to Data Scientist after leading the renewal of the internal manager scoring model, increasing portfolio allocation precision by 15%.
Performance: Validated complex credit risk models and optimized SQL/SAS data workflows, reducing data processing latency by 30%.
AI Automation: Developed custom AI agents to enhance credit model explainability, supporting risk analysts and significantly reducing query resolution latency.

Co-Founder & Tech Advisor

Orwee

March 2023 - Present

Infrastructure: Designed and deployed a full-stack cloud architecture (AWS) supporting a real-time ETL system that processes 50M+ on-chain data points.
Product Innovation: Developed a custom dashboard for advanced opportunity discovery, enabling real-time monitoring of key on-chain data for 500+ active users.
Advanced Analytics: Implemented Python-based ML algorithms to identify yield-optimization opportunities and funding-rate arbitrage across multiple chains.

Data Engineer

ChainTaxFlow (Freelance)

February 2025 - June 2025

On-Chain Tracking: Engineered an on-chain data methodology to track complex Liquidity Pools transactions, increasing fiscal reporting accuracy by 95%.
AI Automation: Deployed a scalable cloud backend infrastructure integrated with an AI agent for regulatory queries, reducing manual review time by 60%.

Data Analyst

Albeit Capital

October 2022 - August 2024

Process Automation: Automated 80% of recurring operational and reporting workflows via Python-based ETL pipelines, increasing team efficiency by 40%.
Data Visualization: Architected interactive strategic dashboards (Power BI/Metabase) to track 10+ DeFi protocols, driving C-level investment decisions.

Data Scientist

Plutus (Freelance)

November 2023 - January 2024

Quantitative Modeling: Designed comprehensive token longevity simulations (5+ year outlook) using Python to guarantee protocol sustainability under extreme market volatility.
Value Capture: Modeled economic incentives across user segments, increasing projected staking retention metrics by 20%.

Co-Founder / Marketing Specialist

E-Agency (Freelance)

September 2020 - September 2022

System Automation: Developed custom web solutions and automated core workflows using CRM integrations to scale client business operations.
Data Analytics: Implemented advanced web tracking (Google Analytics) and automated A/B testing infrastructure to optimize data-driven advertising campaigns.

Projects

Orwee - 360º DeFi Tool

A comprehensive DeFi terminal for decentralized finance analytics. Features include a Liquidity Pools Explorer, portfolio tracking, and Funding Rate Arbitrage, processing over 50M data points to deliver real-time institutional insights.

Python AWS Cloud On-chain Analytics FastAPI

Learning Heroes Crypto Analytics

Developed a centralized dashboard to track KPIs and core metrics used during classes, providing students and instructors with a single source of truth for crypto market analysis.

ETL Pipelines PostgreSQL REST APIs Data Integration

Gliquid ALM

Design of an Automated Liquidity Manager (ALM) algorithm based on Bollinger Bands and Keltner Channels. Strategy simulation engine with on-chain subgraph data extraction and time-series analysis.

Quantitative Modeling Python Time-Series Backtesting Engines

R2R Liquidity Pools Vaults

Asset Management strategy for Liquidity Pools Vaults. Liquidity research and automated flows to optimize yield performance on on-chain positions.

Asset Management Liquidity Pool Vaults Research

DeFi Antipasivo & Galaxy

Development of custom Dashboards for crypto educational academies. Real-time analysis of market opportunities and on-chain tools for students and investors.

Education Dashboards Analytics

Education

Big Data Master's Degree

European University

2022 - 2023

Statistics Bachelor's Degree

Complutense University

2018 - 2022

Certifications & Badges

Microsoft Azure AI

Microsoft

Data Engineering

Snowflake

Claude Code in Action

Anthropic

IBM

Machine Learning with Python

IBM

Docker Foundations

Docker

Claude Platform 101

Anthropic

Programming Specialization

SAS

Applied Statistics Specialization

SAS

Digital Marketing

Meta

Skills & Tech Stack

Software & Technologies

  • Languages & Frameworks: Python (Pandas, NumPy, Scikit-Learn, TensorFlow, PyTorch), SQL, SAS, R.
  • Data Engineering & Cloud: AWS, Docker, dbt, Airflow, Snowflake, ETL Pipelines, CI/CD, n8n, FastAPI, REST APIs, GitHub.
  • AI & Automation: AI Agents & LLM Integration, LangChain, RAG, Workflow Automation, Machine Learning.
  • Databases: MySQL, NoSQL, Large-Scale Relational Databases.
  • BI & Visualization: Power BI, Tableau, Metabase.

Core Professional Attributes

  • Quantitative Problem-Solving & Capital Markets Knowledge.
  • Risk Management & Financial Compliance.
  • Quantitative Research & Backtesting Engines.
  • Entrepreneurial Mindset & Autonomous Remote Work.

About me

My name is Roberto Fajardo. I am a statistician with a strong entrepreneurial drive and a passion for transforming raw, fragmented data into production-grade infrastructure and automated systems that scale.

Throughout my career, I have bridged two worlds: validating complex credit risk models within traditional institutional banking (Banco Sabadell) and architecting cutting-edge data solutions for fast-paced fintech and decentralized environments. As a co-founder of Orwee, I have designed cloud architectures and real-time ETL pipelines from scratch to power robust analytics platforms.

My goal is to solve high-stakes business problems by building resilient systems, ranging from real-time financial APIs and quantitative backtesting engines to deploying AI agents that simplify operational complexity.

Contact

Got a project in mind?

Tell me about your challenge. I will analyze your case and propose the most suitable solution for your company, from data architecture and backend development to predictive algorithms, advanced visualization, or AI agent integration.

Contact me