JBH
Jonatan Blank Hall

Jonatan Blank Hall

I build software for start-ups and businesses, and I measure what policy actually does.

Stockholm, Sweden · German and Mexican citizenship

Download CV Selected work
01

About

I run two ventures. Zero2Hero teaches students across Latin America, the United States and Spain — programming, Python, web development, machine learning, AI. BlankSoftware is where we practise what we preach: custom-made software for start-ups and businesses, and products of our own.

In parallel I work as a mathematician and economist on policy evaluation and decisions under uncertainty, and I am applying for doctoral study in statistics and machine learning, applied to health and development, for a 2027 start.

02

Ventures

Zero2Hero teaches people to build. BlankSoftware builds — for clients, and for ourselves.

We teach students across Latin America, the United States and Spain: programming, Python, web development, machine learning and AI. More than a thousand of them so far. Courses run live and asynchronously, and are built around work students can actually ship.

zero2hero.com.mx

Where we practise what we preach. We build custom-made software for start-ups and businesses, and we build products and solutions of our own — from the first conversation through to the server it runs on.

github.com/blankhall98
03

Trajectory

2023–2025 Lund, Sweden

Lund University

MSc (120 credits), Major: Economic Development

Programme in Economic Growth, Population and Development · Graduated June 2025

  • Econometrics II · Advanced Machine Learning · High-dimensional Data Analysis · Advanced Analysis of Economic Change · Institutions, Economic Growth and Equity · Consequences of Demographic Change · The State in the Development Process
2017–2023 Mexico City, Mexico

National Autonomous University of Mexico

BSc Applied Mathematics

Professional examination August 2023 · Mención Honorífica · average 9.60 / 10

  • Thesis awarded shared first place, Premio Francisco Aranda Ordaz 2025 (undergraduate theses), Asociación Mexicana de Estadística
  • Capstone — Quantitative Methods for HIV Analysis
Documents Degree certificate Prize
2023 Mexico City, Mexico

Mexican Center for Industrial Ecology (CMEI)

Intern — Data & Policy Analysis

  • Conducted data mining and web scraping with BeautifulSoup and Selenium to extract environmental policy data.
  • Built automated tools for environmental impact assessment in Python and R.
  • Collaborated on ecological modelling and contributed to national-level sustainability reporting.
Dr. Daniel Itzamna Ávila Ortega
2022 Mexico City, Mexico

FABLE Mexico

Intern — Environmental & Agricultural Modeling

  • Developed a platform converting crop production databases into georeferenced maps, so policy could target regions rather than whole states.
  • Integrated national datasets into GLOBIOM, the Global Biosphere Management Model, using Python, SQL and GIS tools.
  • Coordinated with IIASA researchers to support international modelling efforts.
Dr. Gordon McCord Dr. Fernanda Herrera
  • Spanish Native
  • English Fluent Certified
  • German Intermediate CEFR B1
  • French Intermediate CEFR B1
  • Swedish Basic
04

Research

Policy evaluation and decisions under uncertainty — whether a policy did what it set out to do, what its proxies can and cannot identify, and how to decide what to measure next when every evaluation is expensive.

2025 Master's thesis · Lund University · supervised by Dr Jutta Bolt

Evaluating the Long-Run Socio-Economic Effects of Conditional Cash Transfer Programs: The Case of Mexico

A long-run evaluation of Mexico's conditional cash transfer programme: whether decades of transfers moved the socio-economic outcomes they were designed to move, estimated with a cohort difference-in-differences design when the survey does not say who was enrolled.

Repository

2024 Master's thesis · Lund University · supervised by Andrés F. Palacio

Exploring the Economic Effects of Privatization: Short and Long-Term Perspectives from Chile and Argentina

Privatisation across key industries in Chile and Argentina, separating the short-run effects from what actually persisted.

Repository

2023 Bachelor's thesis · UNAM · Mención Honorífica · Premio Francisco Aranda Ordaz 2025, Asociación Mexicana de Estadística

Achieving the 17 Sustainable Development Goals within the 9 Planetary Boundaries

Whether the seventeen Sustainable Development Goals can be met without breaching the nine planetary boundaries — and what has to give if they cannot. Published as a public platform so the sources and reasoning stay available. Shared first place in the Mexican Statistical Association's 2025 national prize for undergraduate theses.

sdginpb.com Repository Prize
05

Selected work

Projects I started, led or built. Client names appear with permission.

2022— Founder & lead developer

Zero2Hero Platform

Course and mentoring platform: catalogue, enrolments, subscriptions and payments.

zero2hero.com.mx

2025 Architect & operator

blank_server

Self-hosted platform running every application I own or maintain — seventeen apps for thirteen projects, three of them taking payments.

2026— Lead developer · BlankSoftware

cv.doctor

Website platform for doctors and clinics: a profile site for each practice, a public medical directory, and a panel to keep both current.

cv.doctor

2025— Creator & developer · BlankSoftware

Blank CMS

Headless multi-tenant CMS: one deployment holds the content, media and analytics of five client websites and serves them through a public delivery API.

2025— Developer

Scrap360

Operations platform for a multi-branch scrap-metal yard: weighing notes, inventory, pricing, partner balances, cash reconciliation and reports.

2024— Backend developer · Latente

Wellness Center Administrative Dashboard

Booking, membership and payments backend for a wellness centre in Mexico City.

2026 Developer · Productos Buenísimos

WhatsApp CRM & AI Agent

A WhatsApp sales agent with a CRM behind it: orders, payment links, shipping, escalation to a human.

2026— Backend developer

Impulsera

Backend and editing panel behind the homepage of a Mexican non-profit: text, images and video published by its staff, and the sign-up form.

impulsera.org

2026— Creator & developer

Reino Ajolote

Mobile farming and conservation game set in Xochimilco: clean the canals, farm the chinampas, and bring the axolotls back.

2025 Developer

Clínica de Valle

Front end and backend for the Clínica de Valle project.

2024— Developer

PIA

Natural-language analysis of psychology sessions, for clinicians between appointments.

2025 Developer

Copas y Raíces

Tasting-experience platform: scheduling, ticketing and idempotent Stripe checkout.

2025 Developer

SyR Contadores

Client portal and document workflow for an accounting practice.

syrcontadoresmx.com

2023— Developer

Dr. Daniel Sierra

Practice site for a cardiologist specialising in cardiovascular imaging.

doctordanielsierra.com

2019— Founder

GoodHuman

A long-running project to nudge people toward positive-impact habits.

@goodhuman.project
06

Skills

Mathematics & Statistics

Statistical inference, stochastic processes, time series analysis, Bayesian statistics, dynamical systems, differential equations

Econometrics & Policy Evaluation

Difference-in-differences, instrumental variables, synthetic control, panel data and fixed effects, causal inference, impact evaluation

Machine Learning & AI

Regression and classification, forecasting, natural language processing, LLM applications and agents, LangChain, local LLMs, scikit-learn, TensorFlow

Programming

Python, R, SQL, JavaScript and TypeScript, HTML and CSS, Git

Software & Infrastructure

Flask, FastAPI, SQLModel, SQLAlchemy, React and Next.js, PostgreSQL, Docker, Dokku, self-hosted Linux servers