Mangusta Capital logoMangusta Capital Externship via Extern

Arianna Barbero, emerging designer and maker

I'm early in my career, building practical experience and a portfolio that shows what I can do.

Work samples

A selection of personal and learning projects that demonstrate my developing skills, thought process, and what I can deliver as I gain experience.

  • Portfolio Optimization & Investment Management
    Portfolio Optimization & Investment Management

    Optimized a multi-asset portfolio across U.S. equities, bonds, and Treasury bills using mean-variance optimization and utility analysis, achieving a 1.28 model-implied Sharpe ratio under investor risk constraints. Constructed and evaluated a 5-stock active equity portfolio benchmarked against the S&P 500 ETF (IVV), applying CAPM, alpha/beta estimation, covariance analysis, and risk-adjusted performance measures to support security selection and allocation.

  • Harvard Business Publishing – Working Capital Simulation
    Harvard Business Publishing – Working Capital Simulation

    Reduced simulated credit-line utilization by 81%, from $2.875M to $557K, by optimizing receivables, supplier terms, financing decisions, and working-capital deployment while maintaining growth. Evaluated customer, product, and expansion decisions using NPV, DSO, cash conversion cycle, and margin analysis, generating simulated results of $2.039M EBIT, $1.142M net income, and $1.223M free cash flow.

About me

I'm early in my career, building practical experience and a portfolio that shows what I can do.

I am Arianna Barbero. I am at the start of my career and building my skills and portfolio while preparing to begin professional work.

Externships

Mangusta Capital Deal Sourcing & Startup Analysis Externship

In progress

Experience

Private Tutor for High School Students · Jan 2023 – July 2023

Childcare Provider for Children with Disabilities · Jan 2022 – Aug 2023

Server

Sushiko · June 2022 – Dec 2022

Education

Hult International Business School | Cambridge, MA

Master of Science in Finance (STEM)

Hult International Business School | London, UK

Bachelor of Business Administration in Finance

Skills

Learning-orientedPersonal project workDesign thinkingProblem solvingPortfolio development

Portfolio Optimization & Investment Management

Optimized a multi-asset portfolio across U.S. equities, bonds, and Treasury bills using mean-variance optimization and utility analysis, achieving a 1.28 model-implied Sharpe ratio under investor risk constraints. Constructed and evaluated a 5-stock active equity portfolio benchmarked against the S&P 500 ETF (IVV), applying CAPM, alpha/beta estimation, covariance analysis, and risk-adjusted performance measures to support security selection and allocation.

View all work

Harvard Business Publishing – Working Capital Simulation

Reduced simulated credit-line utilization by 81%, from $2.875M to $557K, by optimizing receivables, supplier terms, financing decisions, and working-capital deployment while maintaining growth. Evaluated customer, product, and expansion decisions using NPV, DSO, cash conversion cycle, and margin analysis, generating simulated results of $2.039M EBIT, $1.142M net income, and $1.223M free cash flow.

View all work

Sustainable Investing Business Challenge

Constructed a 12-stock sustainable equity portfolio across three sectors for a simulated institutional mandate, integrating ESG screening, fundamental analysis, and portfolio construction into security selection. Developed and presented the investment thesis, portfolio positioning, rebalancing criteria, and risk-monitoring framework, incorporating ESG reviews and portfolio-level risk controls.

View all work

CarbonCycle Business Strategy Simulation

Developed a cross-functional growth strategy spanning pricing, R&D, digital marketing, operations, and international expansion, increasing simulated demand 158% and capturing 29% market share. Scaled the simulated business to $11.5M revenue and $3.1M net income through pricing, investment, and market-expansion decisions.

View all work

✅ Verified by Extern · ⏱️ In progress

Mangusta Capital Deal Sourcing & Startup Analysis Externship

Join a new VC fund launched by a former SoftBank Vision Fund leader and backed by the Ray-Ban/Oakley family to identify high-potential Vertical AI startups. Gain hands-on experience sourcing deals, analyzing markets, and writing compelling investment memos.

Investment AnalysisEntrepreneurship

Overview

The externship involved sourcing deals and analysing early-stage Vertical AI startups for a newly launched VC fund. The work reviewed market signals, assessed startup teams and business models, and produced written investment analyses. Deliverables included an investment memo draft for a selected opportunity.

Mangusta Capital Deal Sourcing & Startup Analysis Externship

What I've accomplished

I produced a vetted shortlist of three Vertical AI startups, each documented with company profiles, funding details, team size, industry categorization, and source links.

Project breakdown

I read Mangusta Capital’s thesis, used AI and databases to find three startups that fit the vertical AI/fintech focus, and compiled their key data (website, funding, team size, sector, last round) into a shared spreadsheet.

Google Sheets
Access

During the externship I collected public filings and press sources, then synthesized a Company Overview covering profile, fundraise history, and market positioning, producing a single deliverable hosted at the submitted URL.

View all work