Jeffrey Benjamin Brown
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Jeffrey Benjamin Brown Email & Phone Number

The Technological Advisor to the Director at DIAN Dirección de Impuestos y Aduanas Nacionales
Location: Colombia, Colombia, Colombia 10 work roles 4 schools
1 work email found @precisionhealtheconomics.com LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

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Current company
DIAN Dirección de Impuestos y Aduanas Nacionales
Role
The Technological Advisor to the Director
Location
Colombia, Colombia, Colombia
Company size
1618 employees

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Jeffrey Benjamin Brown is listed as The Technological Advisor to the Director at DIAN Dirección de Impuestos y Aduanas Nacionales, a company with 1618 employees, based in Colombia, Colombia, Colombia. AeroLeads shows a work email signal at precisionhealtheconomics.com and a matched LinkedIn profile for Jeffrey Benjamin Brown.

Jeffrey Benjamin Brown previously worked as Chief Technical Officer at Observatorio Fiscal and Open Source Semantic Web Developer at Independent. Jeffrey Benjamin Brown holds A.B.D. (Discontinued Ph.D.), Economics from Michigan State University.

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{first_initial}{last}@precisionhealtheconomics.com
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About Jeffrey Benjamin Brown

(Hablo español con fluidez, pero no quiero escribir lo siguiente dos veces.)===== Some Professional Highlights =====Since January 11th, 2024, I have been the technological advisor to the director of Colombia's tax authority, the DIAN. I investigate and patch security holes in enormous legacy systems, provide DevOps solutions (automating data engineering and machine learning processes), and advise on architectural, data science and security questions.I spent the six years before that as Chief Technical Officer for theObservatorio Fiscal[1], a non-profit that researches and forecasts the economic effects of policy in Colombia. I led software development, data engineering and systems administration, and shared responsibilities for economic and statistical analysis and writing. I built our open-source tax microsimulation model of Colombia[2], and its public web interface[3].At the US Congressional Budget Office[4], during the 2008 financial crisis, I built a model to forecast foreclosure rates.In 2021, I cofounded a cryptocurrency trading company. We made just enough money to cover our high regulatory costs. It was a learning experience.I have around a decade of experience teaching mathematics, statistics and economics.===== Some Open-Source Activities ====I am the author of Hode, the Higher-Order Data Editor[5], an open-source hypergraph database, search engine, query language and editor for semantic data, written in Haskell.I co-developed Semantic Synchrony[6], an open-source distributed knowledge graph server and editor, and wrote its documentation.I am also the author of Montevideo, a suite of real-time music applications written in Haskell. Montevideo provides a language for creating musical patterns, a microtonal synthesizer for the open-source {monome[8] grid controller, and facilities for ear-training and exploring the mathematics of higher equal divisions of the octave.[1] http://www.ofiscal.org[2] https://github.com/ofiscal/tax.co[3] http://www.ofiscal-puj.org/microsim/run_make/manual_ingest[4] https://www.cbo.gov/[5] https://github.com/JeffreyBenjaminBrown/hode}{Hode[6] https://github.com/synchrony/smsn/wiki[7] https://github.com/JeffreyBenjaminBrown/montevideo[8] https://monome.org

Listed skills include Statistics, Stata, Econometrics, Data Analysis, and 18 others.

Current workplace

Jeffrey Benjamin Brown's current company

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DIAN Dirección de Impuestos y Aduanas Nacionales
Dian Dirección De Impuestos Y Aduanas Nacionales
The Technological Advisor to the Director
bogota, distrito especial, colombia
Website
dian.gov.co
Employees
1618
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10 roles

Jeffrey Benjamin Brown work experience

A career timeline built from the work history available for this profile.

The Technological Advisor To The Director

Current
Dian Dirección De Impuestos Y Aduanas Nacionales

Bogotá, Capital District, Colombia

Advise on questions of cyber security and development operations. Investigate and modify large legacy systems. Automate data science and machine learning pipelines.

Jan 2024 - Present

Chief Technical Officer

Observatorio Fiscal

Bogotá, Colombia

The Observatorio analyzes the historical effects of policy, and predict future ones. We also provide explanations of laws and procedures intelligible to non-experts. Our work is open source and aimed at the public; we have no clients. We resemble the Congressional Budget Office in the US, except younger, smaller, and funded by Universidad Javeriana rather.

Dec 2017 - Jan 2024

Open Source Semantic Web Developer

Independent

Los Angeles

Semantic Synchrony[1] is an open-source knowledge graph server with an Emacs front-end. To my knowledge it is unique: a nonlinear word processor, a knowledge editor that requires no programming experience. I am contribute to most of, and started some of, the projects in Semantic Synchrony. I also manage documentation and outreach for it. Some of my.

Apr 2014 - Jan 2020

Analyst

Precision Health Economics

Los Angeles, CA

PHE produces health economics outcomes research. I was a computer programmer, and sometimes a statistician.We harmonized health and economic data from hospitals, insurers, government agencies and other sources, across changes in language and format. From the harmonized output we generated and analyzed statistics and regressions. We used SAS, Stata, R.

Oct 2012 - Apr 2014

Research Consultant And Tutor, In Economics, Mathematics, Statistics And Computer Science

Michigan State University

Lansing, MI

For undergraduate and graduate students, in person and through video conference.

Aug 2010 - Nov 2012

Instructor, Principles Of Microeconomics

Michigan State University

East Lansing, MI

Handled all aspects of lectures, communication, administration and grading, for two intense six-week courses, each of more than 80 students.

May 2011 - Aug 2011

Teaching Assistant, Economics Department

Michigan State University

East Lansing, MI

Taught economics, statistics and math on behalf of the economics department. Twice for a semester led a team of eight or more teaching assistants for a large (1100+) microeconomics class.

Aug 2006 - Aug 2011

Economic And Econometric Consultant For Dr. (Of Economics) Lisa Cook

Michigan State University

East Lansing, MI

Provided economic and statistical feedback for her working papers.

Aug 2009 - Dec 2009

Summer Associate, Macroeconomic Analysis Division

Congressional Budget Office

Washington, DC

Wrote software to forecast state-level foreclosure rates in a regression framework. Scraped some of the data from other federal agencies' websites.

May 2009 - Aug 2009
Team & coworkers

Colleagues at DIAN Dirección de Impuestos y Aduanas Nacionales

Other employees you can reach at dian.gov.co. View company contacts for 1618 employees →

ML Maria Laura Maria Laura Colleague at Dian Dirección De Impuestos Y Aduanas NacionalesBogota, D.C., Capital District, Colombia, Colombia View → AM Ana Maria Agudelo Echeverri Ana Maria Agudelo Echeverri Colleague at Dian Dirección De Impuestos Y Aduanas NacionalesColombia, Colombia View → MC Marisol Céspedes Quevedo Marisol Céspedes Quevedo Colleague at Dian Dirección De Impuestos Y Aduanas NacionalesCapital District, Colombia, Colombia View → SP Santiago Palacios López Santiago Palacios López Colleague at Dian Dirección De Impuestos Y Aduanas NacionalesMedellín, Antioquia, Colombia, Colombia View → LM L Miguel P L L Miguel P L Colleague at Dian Dirección De Impuestos Y Aduanas NacionalesManizales, Caldas, Colombia, Colombia View → FR Fabian Rincon Santaella Fabian Rincon Santaella Colleague at Dian Dirección De Impuestos Y Aduanas NacionalesMedellín, Antioquia, Colombia, Colombia View → GI Gerardo Iván Pinzón Díaz Gerardo Iván Pinzón Díaz Colleague at Dian Dirección De Impuestos Y Aduanas NacionalesBogota, D.C., Capital District, Colombia, Colombia View → AS Alexander Salcedo Benavides Alexander Salcedo Benavides Colleague at Dian Dirección De Impuestos Y Aduanas NacionalesBogota, D.C., Capital District, Colombia, Colombia View → LA Laura Alejandra Gutierrez Vargas Laura Alejandra Gutierrez Vargas Colleague at Dian Dirección De Impuestos Y Aduanas NacionalesGirardot, Cundinamarca, Colombia, Colombia View → GF Gina Florez Gina Florez Colleague at Dian Dirección De Impuestos Y Aduanas NacionalesBogota, D.C., Capital District, Colombia, Colombia View →
4 education records

Jeffrey Benjamin Brown education

A.B.D. (Discontinued Ph.D.), Economics

Michigan State University

Activities and Societies: My dissertation committee included Jeff Wooldridge, Gary Solon and Peter Schmidt -- a dream team. DISSERTATION.

Master’S Degree, Economics

Michigan State University

B.A., Economics

California State University, Northridge

Graph Theory, Functional Analysis, Real Analysis And Measure Theory, Topology, Homology.

Budapest Semesters In Mathematics

Incredibly fun.

FAQ

Frequently asked questions about Jeffrey Benjamin Brown

Quick answers generated from the profile data available on this page.

What company does Jeffrey Benjamin Brown work for?

Jeffrey Benjamin Brown works for DIAN Dirección de Impuestos y Aduanas Nacionales.

What is Jeffrey Benjamin Brown's role at DIAN Dirección de Impuestos y Aduanas Nacionales?

Jeffrey Benjamin Brown is listed as The Technological Advisor to the Director at DIAN Dirección de Impuestos y Aduanas Nacionales.

What is Jeffrey Benjamin Brown's email address?

AeroLeads has found 1 work email signal at @precisionhealtheconomics.com for Jeffrey Benjamin Brown at DIAN Dirección de Impuestos y Aduanas Nacionales.

Where is Jeffrey Benjamin Brown based?

Jeffrey Benjamin Brown is based in Colombia, Colombia, Colombia while working with DIAN Dirección de Impuestos y Aduanas Nacionales.

What companies has Jeffrey Benjamin Brown worked for?

Jeffrey Benjamin Brown has worked for Dian Dirección De Impuestos Y Aduanas Nacionales, Observatorio Fiscal, Independent, Precision Health Economics, and Michigan State University.

Who are Jeffrey Benjamin Brown's colleagues at DIAN Dirección de Impuestos y Aduanas Nacionales?

Jeffrey Benjamin Brown's colleagues at DIAN Dirección de Impuestos y Aduanas Nacionales include Maria Laura, Ana Maria Agudelo Echeverri, Marisol Céspedes Quevedo, Santiago Palacios López, and L Miguel P L.

How can I contact Jeffrey Benjamin Brown?

You can use AeroLeads to view verified contact signals for Jeffrey Benjamin Brown at DIAN Dirección de Impuestos y Aduanas Nacionales, including work email, phone, and LinkedIn data when available.

What schools did Jeffrey Benjamin Brown attend?

Jeffrey Benjamin Brown holds A.B.D. (Discontinued Ph.D.), Economics from Michigan State University.

What skills is Jeffrey Benjamin Brown known for?

Jeffrey Benjamin Brown is listed with skills including Statistics, Stata, Econometrics, Data Analysis, Economics, R, Research, and Sas.

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