Essber Roberto R.

I build AI agents, automations and live dashboards that pull data from your APIs, run machine learning on it and put the answers in front of your team, with no manual exports or spreadsheet work. Top Rated data scientist on Upwork since 2021: 43 jobs, 1.7K hours, 5.0 rating across 29 reviews and more than $100K earned. WHAT I DELIVER • AI agents and automations: LLM bots specialized for your business through prompt engineering, connected to your tools and data, handling repetitive workflows end to end. • API integration and data pipelines: I connect multiple APIs (API keys, authentication, scheduled pulls), clean and combine the data, and deliver reliable ETL pipelines on AWS or Linux servers. • Custom dashboards that go beyond Power BI and Tableau: live API data, built-in machine learning predictions, interactive maps and logic tailored to how you make decisions. • Machine learning in Python and R: time-series forecasting, failure prediction, fraud detection, classification and regression with XGBoost, TensorFlow and related tools. PROOF • Former Data Scientist and Compliance Analytics Deputy Manager at BCP (Banco de Crédito del Perú), Peru's largest bank, where I worked on fraud and compliance analytics (2018–2021). • MSc in Forest Ecology & Management, University of Freiburg (Germany). Forestry Engineer, UNALM (Peru), thesis rated Outstanding. • Upwork projects include a solar-site analysis tool deployed on AWS EC2, machine learning to predict diesel-engine failures, ETL and ML pipelines on AWS for an enterprise client, interactive Leaflet map apps, Tableau dashboards recreated in code (R/Shiny and Python), time-series forecasting, loan analytics and crypto trading-strategy backtesting. • In the words of a US client: "perhaps the best contractor I have ever hired." NICHES • Crypto and Bitcoin data: on-chain data, BRC-20, Runes, CBRC-20, trading-strategy backtesting and market monitoring. • Environmental and forestry data: MSc in forest ecology, ocean temperature and salinity modeling for a sustainable fisheries organization, and I manage my own 80-hectare natural forest in the Peruvian Amazon. HOW I WORK • Hourly contracts, fully remote from Peru (UTC-5, aligned with US business hours). • Async-friendly: clear written updates, documented code and a proper handover so your team can run what I build. • I start with the business question, propose the simplest solution that works and deliver in small, testable steps. • Fluent in English, Spanish (native) and German. If you have a process that should run by itself, data scattered across several APIs, or reporting that has outgrown Power BI or Tableau, invite me to your job or send a short description of what you need. I will reply with questions and a concrete first step. AI Agent Development, AI Automation, Large Language Model, Prompt Engineering, API Integration, Python, Machine Learning, Data Science, Dashboard, ETL Pipeline, Amazon Web Services, Time Series Analysis, R, Cryptocurrency, GIS