Skip to content
View Halexoh's full-sized avatar

Block or report Halexoh

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
Halexoh/README.md

Haderson Alexander Osorio - Halexoh

Data Analyst & Biological Engineer - Medellin, Colombia to Nordrhein-Westfalen, DE

Turning industrial and operational data into decisions that actually change numbers. 8+ years in coatings, chemicals & technical sales - Applying that domain depth to data roles in Germany.


Tech stack

Languages      Python (Pandas, NumPy, Scikit-learn, Matplotlib, Seaborn)
               SQL, R, DAX
BI & Reporting Power BI, Streamlit, Jupyter Notebook
Data Tools     Excel (advanced), Google Sheets, Minitab, DuckDB, SQLite
Cloud & Other  AWS (AI Practitioner), Git

Featured projects

Brazilian E-commerce Analytics

EDA + ML analysis on 94,000+ orders from the Olist dataset. Key finding: delivery delay is the #1 driver of low review scores. Delivered actionable logistics recommendations backed by feature importance analysis. Python Scikit-learn Seaborn Pandas EDA Classification


Paint R&D Versioning App

Streamlit app for industrial paint formulation versioning and comparison. Calculates PVC, solids content, and pigment/resin ratio. Python Streamlit SQLite Industrial Chemistry


Work highlights

Role Company Impact
Technical Manager Pinturas Prolac -12% production costs via multivariate analysis
Tech Service Specialist Andercol - AkzoNobel Power BI KPI dashboards, LATAM data integration
Account Manager Barentz Market analysis, import DB, pricing strategy
Junior Researcher UNAL - Colciencias Statistical analysis in R, biological datasets

Certifications

  • Mathematics for Machine Learning Specialization - Imperial College London / Coursera - Feb 2026
  • AWS AI Practitioner - Amazon Web Services - 2026
  • SQL Intermediate - HackerRank - May 2026
  • Goethe-Zertifikat B2 - Goethe-Institut - Aug 2023

Languages

Spanish native · English C1 · Deutsch B2 (Goethe-Zertifikat)


Currently

  • Work authorization: Genehmigung zur Fuehrung der Berufsbezeichnung Ingenieur per IngG NRW, Bezirksregierung Arnsberg, in progress
  • Open to Data Analyst / Data Scientist roles in Germany and EU — remote or on-site
  • Preparing for German C1

💼 Freelance Services

Available for data analysis, EDA, and visualization projects → Fiverr


LinkedIn HackerRank

halexoh@gmail.com


DE - Profil auf Deutsch

Datenanalyst & Bioingenieur - Medellin, Kolumbien nach Nordrhein-Westfalen

Industrielle und operative Daten in Entscheidungen uebersetzen, die Zahlen wirklich veraendern. 8+ Jahre in Beschichtung, Chemie und technischem Vertrieb.


Technisches Profil

Sprachen       Python (Pandas, NumPy, Scikit-learn), SQL, R, DAX
BI & Reporting Power BI, Streamlit, Jupyter Notebook
Datenwerkzeuge Excel (fortgeschritten), Minitab, DuckDB, SQLite
Cloud          AWS (AI Practitioner), Git

Ausgewaehlte Projekte

Brasilianische E-Commerce-Analyse

EDA und ML-Analyse von 94.000+ Bestellungen aus dem Olist-Datensatz. Wichtigste Erkenntnis: Lieferverzoegerungen sind der entscheidende Treiber niedriger Bewertungen. Python Scikit-learn Seaborn Pandas Klassifikation


Versionierungsanwendung fuer Lacke

Streamlit-App zur Versionierung industrieller Lackformulierungen. Berechnet PVK, Festkoerpergehalt und Pigment-/Harzverhaeltnis. Python Streamlit SQLite Industriechemie


Berufserfahrung - Highlights

Stelle Unternehmen Ergebnis
Technischer Leiter Pinturas Prolac -12% Produktionskosten durch multivariate Analyse
Spezialist Techn. Service Andercol - AkzoNobel Power BI KPI-Dashboards, LATAM Datenintegration
Account Manager Barentz Marktanalyse, Importdatenbanken, Preisstrategie
Wissenschaftlicher Mitarbeiter UNAL - Colciencias Statistische Analyse in R

Aktuell

  • Genehmigung zur Fuehrung der Berufsbezeichnung Ingenieur gem. IngG NRW, Bezirksregierung Arnsberg, in Bearbeitung
  • Offen fuer Datenanalyst / Data Scientist Stellen in Deutschland — remote oder vor Ort
  • Vorbereitung auf Deutsch C1

Popular repositories Loading

  1. data-science-portfolio data-science-portfolio Public

    Portfolio of end-to-end data science and machine learning projects, including data analysis, modeling, and business insights using Python, SQL, and visualization tools.

    Jupyter Notebook

  2. Halexoh Halexoh Public

  3. brazilian-ecommerce brazilian-ecommerce Public

    EDA and ML analysis of 100K+ orders from Olist. Key finding: delivery delay is the #1 driver of low review scores.

    Jupyter Notebook

  4. paint-rnd-app paint-rnd-app Public

    Streamlit app for versioning and comparing industrial paint formulations. Calculates technical parameters: solids, PVC, pigment/resin ratio.

    Python

  5. certificates certificates Public

    Professional certifications: SQL, Machine Learning, AWS and more

  6. consumo-electrico consumo-electrico Public

    Aplicación web para registrar y analizar el consumo eléctrico por cuenta de servicio

    HTML