Hi, I'm Siyao Zhang

I build AI systems
that solve real problems.

From content automation pipelines to economic forecasting models — I design AI workflows, ship products with vibe coding, and measure what actually works.

AI Workflow Design Vibe Coding Python & ML CN · JP · FR · EN
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Most people use AI as a tool. I design AI-native workflows — systems where multiple AI agents handle entire production chains end-to-end, from decision-making to execution to self-review. My content pipeline runs six specialised agents that took a debut Douyin video to 76,000+ views and consistently hit a 14.3% save rate (vs. 3% industry average). That's not prompting — that's systems design.

I'm an M2 economist at Panthéon-Sorbonne with a dual degree in Finance from UIBE Beijing. Economics gave me an empirical mindset — and right now, getting the most out of AI is itself an empirical science. You try things, measure what works, push boundaries, analyse the data, and iterate. That's how I approach everything: dispatch optimisation in Python, content hook experiments, or designing agent chains.

I work across four languages and three continents. I've coordinated 100+ volunteer programmes (including the 2022 Beijing Winter Olympics) and built a digital platform to 2,000+ subscribers. But what I'm really doing is building toward a future where one person with the right AI systems can outproduce an entire team — and I'm proving it with my own work first.

Currently

M2 Sustainable Development Economics
Université Paris 1 Panthéon-Sorbonne
Seeking Sept 2026 internships in AI product or growth

Focus Areas

AI automation systems · AI-native content production · Vibe coding products · Business × content paired strategy

Languages

Chinese — Native English — C1 Japanese — JLPT N2 French — Conversational

Things I've built

Each project started with a real problem — and turned into a system I actually use.

AI Consulting · Product 2026

This Website — Vibe Coded with AI

Personal project — Built entirely through conversation with Claude Code

Designed and shipped this portfolio site without writing code manually — the entire build happened through natural-language conversation with Claude Code. From layout decisions to responsive design to scroll animations, every element was directed through prompts, not a code editor.

Claude Code Vibe Coding HTML/CSS/JS Responsive Design
Research · Modelling 2025

Energy Demand Forecasting & Supply Optimisation

Deloitte Case Study — Supervised group project, Paris

Designed an end-to-end quantitative framework for South Africa's electricity system. Built and benchmarked six forecasting models (ARIMA through to TFT deep learning), then implemented a dispatch optimisation model minimising system cost under carbon, capacity, and contractual constraints.

Key finding: SARIMAX outperformed deep learning models (LSTM, TFT) on tail-risk metrics — simpler econometric models proved more robust under structural supply stress.
Python Pyomo LSTM TFT SARIMA Prophet
Research · NLP 2025

Robotics Exposure Index for European Labour Markets

Big Data for Development — Group research, Panthéon-Sorbonne

Built an exposure index measuring how susceptible European occupations are to robotics adoption, using Latent Semantic Analysis on patent and job description corpora. Found that middle-wage, routine-task occupations face the greatest automation risk — consistent with labour market polarisation theory.

Key result: A one standard deviation increase in robotics exposure is associated with a 7.2% decrease in mean hourly wages (β = −0.072, p < 0.001) across 34 European countries.
Python LSA NLP LightGBM SHAP OLS
Leadership · Platform 2021 – 2023

Digital Outreach Platform & Volunteer Operations

Independent Initiative — Beijing

Founded and managed a digital content platform that scaled to 2,000+ subscribers. Led coordination of 100+ volunteer programmes, including operations training for the 2022 Beijing Winter Olympics. Oversaw content strategy and stakeholder communications.

Content Strategy Operations Leadership
Research · Finance 2026

Healthcare Equity Research

Guosheng Securities — Beijing

Conducted quantitative analysis of pharmaceutical pricing and reimbursement policy. Contributed to analytical reports synthesising regulatory impact assessments for internal publication and client-facing research.

Excel Financial Modelling Policy Analysis

What I work with

AI Systems & Tools

I design systems where multiple AI agents handle entire workflows — from decision-making to execution to self-review.

Vibe Coding AI Workflow Design Agent Chain Architecture Context Engineering

Data & Engineering

Data is how I verify that AI systems actually work. Every experiment needs numbers instead of intuition.

Python Machine Learning SQL Econometrics Forecasting Data Analysis

Global Reach

Four languages mean smaller information gaps and real cross-border capability.

CN · JP · FR · EN Build in Public International Research Content Strategy

Where I've studied

2025 – 2026

M2 — Sustainable Development Economics

Université Paris 1 Panthéon-Sorbonne · Dual Degree in Finance, UIBE Beijing

Professional track. Coursework in Big Data for Development (image & text analysis in Python), Econometrics & Impact Analysis, International Climate, Industrial Development & Finance.

CSC Scholarship
2024 – 2025

M1 — Economics (PSME) — Development Track

Université Paris 1 Panthéon-Sorbonne

Overall grade: 14.3/20 (Bien) · Microeconomics: 19.1/20. Master's thesis on trade credit, risk sharing, and inventory financing — Stackelberg equilibrium analysis.

CSC Scholarship
2023 – 2024

Exchange Year — Waseda University

Tokyo, Japan

Full-year exchange during B.Sc. at the School of Commerce. Coursework conducted in English, covering economics and international relations.

JLPT N2 · School of Commerce
2020 – 2024

B.Sc. — Economics & Japanese (Dual Degree)

University of International Business and Economics (UIBE), Beijing

Dual degree combining economics with Japanese language and culture. Includes a one-year exchange at Waseda University, Tokyo.

Dual Degree

Let's connect

Seeking Sept 2026 internships in AI product or growth. Or just say hello — I'd love to hear from you.