raigoza

Manually audited smart contract codebases and built test suites to prove vulnerabilities; found low and medium severity issues in open competitions at Sherlock. Applied AI-assisted analysis and formal verification using Certora to mathematically prove vulnerabilities.

Conducted competitive research and built a full content and marketing strategy from scratch for a US-based executive coaching client, operating fully remotely in English. Managed LinkedIn and Instagram channels, developed content calendars in Buffer, and produced editorial posts and video content aligned with the client’s personal brand. Built and sent a weekly newsletter via Mailchimp; tracked KPIs including email open rates, engagement rate, reach, and follower growth, delivering monthly performance reports.

Co-founded a long-term investment fund covering technology, biotech, and robotics equities plus cryptocurrency; responsible for stock picking, fundamental analysis, and portfolio communications. Produced a monthly research bulletin distributed by email to partners, covering portfolio performance, sector analysis, and investment thesis updates. Collaborated with a portfolio manager to build and maintain portfolio models including Sharpe ratio analysis and efficient frontier optimization.

Completed MA with Honours. Thesis project ‘Frustramatic’ explored the creation of a peso stablecoin on Ethereum during its proof-of-work era. Pioneered early blockchain research in the Colombian academic context, combining art, economics, and distributed systems.

Founded an award-winning jewelry brand that received the Lápiz de Acero in 2013, Colombia’s most prestigious industrial design award, and seed capital from the Medellín city hall. Led full product development: designed collections in Blender, built a proprietary microcasting system, and directed 3D printing production, training team members in modelling and fabrication. Directed brand identity end to end: briefed and collaborated with a logo designer and communication specialist to define brand voice, art directed editorial and product photography with a professional photographer, and oversaw Instagram and website presence. Managed commercial partnerships with Museo de Arte Moderno de Medellín (MAMM) and Museo de Antioquia; led business pivot from brass to silver and gold with revised quality control to minimize returns.

Designed jewelry collections for the company and international clients; gained deep hands-on expertise in metal casting, production processes, and quality finishing.