MICKIAS AMBAYE

Finance, data, and commodity trade between Boston and Addis Ababa

Coffee$259.15-0.56%🌱Soybeans$1,165.25-1.31%🌾Wheat$634.75-1.89%🛢️Crude Oil$93.88+1.87%🔥Natural Gas$3.17-0.38%🇪🇹ETB/USD$0.0063+0.32%

About.

Mickias Ambaye at the Specialty Coffee Expo

Mickias Ambaye

Boston, MA & Addis Ababa

Where I'm from

Addis Ababa, originally. Moved to Boston in 2021 for school and have been splitting time between the two cities ever since. The dual-country thing isn't a backdrop, it's most of why I think the way I do.

What I'm doing

Running finance for my family's coffee export business while working through the CQF in the evenings. The first explains why I started looking at risk seriously. The second is the part I find genuinely beautiful.

What I care about

Building things that work. A pricing model, a coffee shipment, a website. The satisfying ones are the ones where the math and the trade are the same problem from different angles.

Quantitative Research.

Derivatives pricing, risk modeling, and stochastic calculus

Pricing

Exotic Options Lab

Asian, barrier, lookback, and American-exercise options under GBM. Monte Carlo with control variates and Longstaff-Schwartz regression.

Numerics

Finite Difference Solver

BSM PDE on a grid: explicit, implicit, and Crank-Nicolson schemes, the CFL stability bound visualised live, and projected SOR for American exercise.

Markets

Pricing Where GBM Breaks

FX (Garman-Kohlhagen), rates (Vasicek, Hull-White), credit (Merton structural), and commodities (Schwartz). The four canonical replacements for lognormal equity.

Certificate in Quantitative Finance (CQF)

In Progress

Advanced program covering derivatives pricing, risk management, stochastic calculus, numerical methods, and machine learning in finance.

Advanced Option Pricing Models

An interactive pricing studio covering Black-Scholes-Merton, Heston stochastic volatility (via the Carr-Madan Fourier transform), and Monte Carlo simulation with antithetic variates. Live Greeks surfaces, 3D implied-volatility skew, and a companion review paper synthesising CQF Module 3.

DerivativesHestonFourierMonte Carlo

Financial Transmission Rights Pricing

Most option pricing models assume the underlying is a stock or a commodity. This paper takes the Black-Scholes framework and adapts it for Financial Transmission Rights, where the underlying is congestion risk on a power grid. Includes jump-diffusion models, seasonality adjustments, and interactive LMP charts.

DerivativesBlack-ScholesEnergy MarketsRisk Management

Advanced ML Trading System

Coming Soon

Implementation of methods from Lopez de Prado's Advances in Financial Machine Learning. CUSUM filters for event detection, triple barrier labeling, meta-labeling for signal confidence, purged K-fold cross-validation, and Kelly criterion for position sizing. Built in Python with XGBoost.

Quantitative FinanceMLPythonXGBoost

Analytics Portfolio.

Financial modeling, machine learning, and data-driven research

quant

Commodity Risk Lab

Live VaR backtesting (Kupiec POF + Christoffersen independence), stylized-facts diagnostics, and side-by-side Gaussian / Cornish-Fisher / Filtered Historical Simulation method comparison on six commodity tickers. Data pipeline: Supabase + daily GitHub Actions ETL.

Per-asset Kupiec POF + Christoffersen independence VaR backtest
Stylized-facts diagnostic (CQF Module 2.4) on the live returns series
Gaussian vs Cornish-Fisher vs FHS comparison with recommended method per asset
VaRRiskBacktesting
data-science

Spotify Popularity Time-Series Forecasting

Apply the same ARIMA / GARCH stack quants use for asset returns to a non-financial domain: track popularity on Spotify. Built on 586,672 tracks across 72 years (1950-2021). Includes a procedural Web Audio synthesiser that lets you hear what 'high energy, low valence' actually sounds like.

586,672 Spotify tracks, 1950-2021, real Kaggle dataset
auto.arima + EGARCH(1,1) on daily aggregated popularity
Per-genre ARIMA with stationarity testing and risk/reward analysis
RARIMAGARCH
applied

Coffee Futures Snowflake Warehouse

A production-style Snowflake data warehouse for coffee futures research. Galaxy schema (fact constellation) with 8 fact tables (~1.2M rows total) and 19 dimension tables stitched together from FMP, FRED, Open-Meteo, and the CFTC COT report. Designed to make a coffee thesis queryable in one join.

Galaxy schema: 8 fact tables, 19 dimension tables, ~1.2M rows
ETL pipeline pulling FMP, FRED, Open-Meteo, and CFTC COT scraping
Date dimension with country-specific harvest seasons baked in
SnowflakeGalaxy SchemaETL
valuation

Eli Lilly DCF Valuation

DCF valuation of Eli Lilly (NYSE: LLY) using FCFF and FCFE with pipeline-adjusted revenue projections. Target price $627 against reference $579 with full scenario analysis and 9-peer relative valuation.

Pipeline-adjusted revenue projections ($33B → $95B, 2023–2027)
WACC = 5.79% via CAPM with 5-year monthly betas
Bull/Base/Bear scenario analysis across 6 drivers
DCFPharmaValuation
data-science

MNIST: MLP vs CNN

Technical comparison of a Multilayer Perceptron and Convolutional Neural Network on MNIST digit classification. Includes 3Blue1Brown-style architecture visualizations, convolution operation animations, and analysis of why spatial awareness matters.

99.29% CNN accuracy vs 97.92% MLP accuracy
Interactive neural network architecture visualizations
Step-by-step convolution operation animation
Deep LearningPythonTensorFlow
data-science

Customer Segmentation Clustering

K-Means and hierarchical clustering on mall customer data. Identifies 5 spending behavior segments with ARI = 0.942 agreement between methods. The unsupervised methodology generalises directly to regime detection and factor-cluster portfolio construction on the quant side.

K-Means and hierarchical clustering comparison (ARI = 0.942)
Interactive elbow method and silhouette analysis
5 customer segment profiles with marketing strategies
Machine LearningK-MeansClustering

Also worth a look

3 side projects
data-science

Urban Heat Island ML Explorer

Interactive satellite ML classification explorer covering Rio de Janeiro, Santiago, and Freetown. Classifies urban heat island zones using the features extracted by UHI-Pipe.

data-science

UHI-Pipe: Satellite Data Library

A Python package (published on PyPI) that extracts satellite imagery from Sentinel-2, Landsat-8, and Copernicus DEM, then computes 19 spectral indices including NDVI, NDBI, and land surface temperature. Outputs ML-ready DataFrames with parquet caching.

applied

Neon Survivor

Arena survival game in a single HTML file. All visuals drawn with Canvas, all audio synthesized with Web Audio API. 6 weapons, 6 passives, 6 evolutions, 7 enemy types, boss fights. Zero dependencies, instant load.

Experience.

Work I've done in finance, trade, and operations

Chief Financial Officer

2024 to Present · Washington, DC

Run the financial side of an Ethiopian-American specialty-coffee export business — pricing, risk, working capital, and the quant models that drive the buy/hold/sell calls.

  • Scaled exports to roughly $5M in annual revenue (about 30 containers in FY2025, over 50 cumulatively in two years) by driving pricing and inventory decisions grounded in data-driven margin and demand analysis
  • Build quantitative models for the business: an inventory-hold profitability model for buy/hold/sell timing, plus volatility forecasting of coffee prices, operational-demand forecasting, and tariff-impact modeling to guide pricing, procurement, and inventory decisions
  • Manage net working capital and cash flow across AP/AR for both Muda and its Ethiopian vendor (HAI), coordinating the financing and operational needs of an intercompany supply chain spanning the US and Ethiopia
  • Own banking relationships and trade finance (letters of credit) for international shipments; implemented Odoo ERP and represented the company at the Chicago and Boston specialty coffee expos to build buyer and supplier relationships

Operations & Business Development

Haileselassie Ambaye Industrial PLC (HAI)

2020 to 2021 · Addis Ababa, Ethiopia

Operations and business development across a diversified Ethiopian industrial group covering real estate, coffee, furniture, and consumer goods.

  • Fully restructured the corporate vehicle fleet from 87 units down to 0, negotiating sales, loan compliance, and ownership transfers to eliminate carrying costs, loan obligations, and operational overhead tied to depreciating assets
  • Coordinated third-party and bank-appointed asset valuations for loan renewals, and audited prefinancing agreements and construction/manufacturing milestones before financing was released, ensuring proper documentation and regulatory compliance
  • Ran market and competitor analysis to source cost-effective procurement and negotiate favorable supplier contracts

Earlier Roles

Architecture Intern

Bereket Tesfaye Consulting Architects

March 2020 to June 2020 · Addis Ababa, Ethiopia

Made 3D models and hand-carved designs for luxury apartments and office buildings.

Assistant Project Manager

Nayna Rotaract

February 2019 to February 2020 · Addis Ababa, Ethiopia

Helped raise money to build a primary and middle school for an orphanage.

Education.

Where I studied and what I focused on

Master of Science

Finance

Hult International Business School

Cambridge, MA · 2025GPA: 3.58

Focus Areas

DCF ValuationsPortfolio OptimizationFinancial ModelingValue at Risk (VaR) AnalysisStrategic Planning

Key Coursework

Portfolio ManagementFinancial AnalysisCorporate FinanceAlgorithmic Trading in Python

Master of Science

Business Analytics

Hult International Business School

Cambridge, MA · 2026GPA: 3.79

Focus Areas

Predictive Financial ModelingData-Driven ForecastingLinear Portfolio OptimizationMachine Learning

Key Coursework

Analytics and ForecastingData VisualizationStatistical ModelingAlgorithmic Trading in Python

Hult International Business School

Bachelor of Business Administration, Entrepreneurship (Minor: Finance)

Cambridge, MA

GPA: 3.6+

2024

Harvard University Extension School

Coursework, Finance, Computer Science & Security

Cambridge, MA

GPA: 4.0

July 2023

Certificate in Quantitative Finance (CQF)

Certificate, Quantitative Finance

Online

Current

In Progress

Skills & Tools.

What I work with day to day

Core Competencies

Proficiency across six domains

Quant Finance & Risk Math

Derivative pricing, VaR / ES backtesting, vol modeling, regime detection, and financial modeling

BSM / Heston / Greeks
88%
Monte Carlo + antithetic variates
90%
GARCH / EGARCH volatility
85%
VaR + Cornish-Fisher / FHS
92%
Kupiec + Christoffersen backtest
88%
CAPM / APM / WACC
92%
DCF + relative valuation
95%
Portfolio optimisation & fixed income
80%

Programming & ML

Python and R for quant work, TypeScript / React for analytics UIs, classical ML and deep learning

Python (NumPy, SciPy, pandas)
92%
R (forecast, rugarch, tidyverse)
82%
SQL (Snowflake, PostgreSQL)
90%
Advanced Excel / VBA
92%
XGBoost / Random Forest
85%
CNN / MLP (TensorFlow, Keras)
80%
K-Means + hierarchical clustering
85%
NLP + sentiment, time-series forecasting
82%
López de Prado financial ML
78%
Algorithmic Trading, Web Audio API, KaTeX, D3-style SVG

Data & Infrastructure

Snowflake galaxy schemas, Supabase live pipelines, GitHub Actions ETL, public data APIs

PostgreSQL / Supabase
90%
Snowflake
88%
MongoDB
70%
Power BI / Tableau
85%
Microsoft Fabric / Streamlit / Git
80%
Odoo ERP
82%
FMP · FRED · Open-Meteo · CFTC scraper · Bloomberg
Commodity markets (coffee, soy, wheat, sesame) · FX · Trade finance & LCs · English & Amharic fluent · Tigrigna native

Methodologies & Frameworks

Methods and frameworks I use in my projects

Black-Scholes-Merton / HestonCarr-Madan Fourier inversionMonte Carlo with antithetic variatesLongstaff-Schwartz regressionCrank-Nicolson FDMCornish-Fisher VaR + FHSKupiec + Christoffersen backtestEWMA + GARCH(1,1) / EGARCHHamilton Markov regime switchingauto.arima / Box-JenkinsGalaxy schema warehouse

Let's Connect.

If you want to talk about coffee, finance, data, or working together on something — reach out. I'm easy to get in touch with.