Blockchain & dApp development


Website dApp (React with ethers.js) and smart contracts (Solidity) to conduct an auction of ERC-20 tokens.

Gloom logo

Web & API development


Website (React) and RESTful API (Node.js / Express / MongoDB) to crowdsource the city's best events.

Chicha app screen shots

Financial advisory

Venture capital investment advisory

Financial modeling, analysis, advisory and negotiation on a convertible note angel investment.

financial growth illustration

Browser game development

Light Cycles

A game inspired by the movie Tron built using vanilla JavaScript, CSS and HTML (including Canvas).

Light Cycles preview

Financial valuation

Real Estate Portfolio Valuation

Leadership of a team performing financial valuation of real estate portfolios comprising 200 properties.

Real estate portfolio valuation preview
See more work


I hold the Certified Ethereum Developer (ConsenSys) and Chartered Financial Analyst designations. My skills include:

  • Technology: Blockchain, Solidity, JavaScript, MongoDB, React, Node.js, Express, CSS, HTML
  • Process: scrum, product development, sketching, prototyping
  • Business: financial analysis, valuation, M&A, digital marketing, business development, negotiation

Based in Barcelona, I'm from the US, speak English and Spanish fluently and can get by in French and Catalan.

© 2021 — Designed & developed by Marguerite Roth