Dionisio Andres Castillo Lozano
Bogota
Summary
Professional Economist with strong commercial acumen, offering robust quantitative and qualitative skills in statistical and economic modelling. Proven track record of leveraging data-driven strategies to consistently exceed sales KPIs by over 30%, seamlessly combining business insights with technical execution. Proficient in R and Stata, while actively expanding capabilities in Python, SQL, and Tableau to pivot into financial data analytics. Open to relocate internationally; ready to learn, adapt, and grow in a dynamic setting.
Overview
1
1
Language
1
1
Certification
3
3
years of professional experience
Work History
RESEARCH ANALYST - ECONOMIC RESEARCHERINDEPENDENT / FREELANCER
GLOBAL
07.2023 - 02.2024
- Curated and cleaned large-scale economic datasets using Stata, R, and SQL to ensure data integrity for analysis.
- Executed quantitative research and econometric modelling to identify and report on statistically significant market trends, informing strategic decision-making.
- Synthesized technical data findings into structured research papers, translating statistical outputs into actionable insights for external stakeholders.
SALES SUPPORT ASSISTANT
IQOR
MEDELLIN
01.2024 - 09.2024
- I consistently met and exceeded sales targets on a daily, weekly, and monthly basis.
- Analysed call metrics and property profiles to effectively pitch American Home Shield (AHS) packages, resulting in increased sales opportunities.
- Managed and updated CRM software to track customer sales activities and maintain accurate records, supporting team efficiency and client relationship management.
- Resolved customer inquiries and complaints, enhancing customer satisfaction and retention.
SALES SUPPORT ASSISTANT
OTD AMERICAS
BOGOTA
09.2025 - Current
- Exceeded periodic sales target by 35%, by leveraging consultive sales techniques and delivering tailored made offers.
- Analayzed customer communication data and data-usage metrics to proactively identify up-selling opportunities.
- Delivered accurate product and plan information to prospective clients, systematically overcoming objections to increase new service activations and long-term retention.
Education
ECONOMIST - Economics,
UNIVERSIDAD EAFIT
MEDELLIN, COLOMBIA06-2019
Skills
- Data Science & AI Architecture: Python (pandas, NumPy), R, SQL, scikit-learn, PyTorch, TensorFlow, Keras
- Econometric & Time-Series Modeling: Stata/EViews/Time-Series Analysis / Linear & Non- Linear Regressions/ Economic Forecasting/ Statistical Testing
- Business Intelligence & Data visualisation: Tableau, Power BI, Seaborn, Matplotlib
- Advanced Excel modelling
- Analytical thinking
- Deep Learning Frameworks: PyTorch, TensorFlow, Keras
- Economic Research & Synthesis: Quantitative Research/ Technical Paper Writing/ Data Interpretation / Literature Reviews/ Policy & Trend Analysis
HOBBIES AND INTERESTS
Football, Running, Gym, Love for nature, Reading, Continous Learning / Self Improvement, Learning Languages, Urban Exploration, Volunteer Work, Professional Networking.
PUBLICATIONS
- How immigration can boost the japanese economy by mitigating the effects of population aging
- Castillo, D. (2020). How immigration can boost the Japanese economy by mitigating the effects of population aging. Online Journal Mundo Asia Pacifico, 9(16), 105–117. Retrieved from https://publicaciones.eafit.edu.co/index.php/map/article/view/6380.
Languages
English
Advanced
C1
Certification
- Econometrics: Methods and Applications | Expected: [Octuber, 2026]
- Provider: Coursera / Erasmus University Rotterdam
- Focus: Applied econometric modeling, data analysis, and Statistical techniques for real-world data sets.
Timeline
SALES SUPPORT ASSISTANT
OTD AMERICAS
09.2025 - Current
SALES SUPPORT ASSISTANT
IQOR
01.2024 - 09.2024
RESEARCH ANALYST - ECONOMIC RESEARCHERINDEPENDENT / FREELANCER
GLOBAL
07.2023 - 02.2024
ECONOMIST - Economics,
UNIVERSIDAD EAFIT