Thoughts on AI product management, quantitative finance, and building at scale.
The 28-Second Bounce
A new user signed up, opened the app, and left 28 seconds later without adding a single contact. Here's why I instrumented the funnel before touching the redesign — and what I shipped.
June 2026Context Engineering Is the Job Now
Running a fleet of AI agents only works if the context is ordered. My setup — one fact per memory file, an index that loads every session, and chats scoped by topic — is what keeps parallel agentic work fast instead of chaotic. The payoff compounds.
June 2026Choosing Not to Scale
The most underrated engineering decision is removing the reason you needed to scale in the first place, instead of adding infrastructure or spend. A note on solving by subtraction.
June 2026Running AI Agents Like a Team
Running multiple AI coding agents in parallel, each owning a slice, while the human reviews and integrates. The bottleneck moves from building speed to clarity of specification and judgment.
June 2026When to Build a Focused Product on Top of a Generic AI Agent
Generic AI agents can do almost anything. That is exactly why a focused, opinionated product can still win the specific job. A product-strategy note, with Scout as the example.
June 2026The WASP Framework: From Challenge to AI MVP in One Week
A hypothesis-driven methodology for building AI products at enterprise speed. Three phases: Challenge Scoping, Problem Space, Solution Space.
May 2026Zero Integration Bugs: How I Built an API Contract Platform for My Teams
Auto-generated test cases from API schemas. Frontend and backend agree on contracts from day zero.
2025Building a B2B SaaS from Scratch: The Pepino Brand Story
Co-founded a Digital Asset Management SaaS. Closed 7 marketing agencies including Credo and BBK Foundation.
2025AI AutoQA at the Coach Summit: Presenting to 80+ Enterprise Leaders
Presented AI AutoQA at enterprise summits in Barcelona and Seville.
2025Scaling QA with AI: From <1% to 100% Coverage
How a European telecom operator transformed QA operations with AI calibration at scale, reaching 82% accuracy while analyzing every customer interaction.
December 2024Micro-SaaS Sold to Factorial: Building ERP Integrations
Built a micro-SaaS that automated Italian ERP integrations for Factorial's HR platform. Sold the product to Factorial.
2024FlexRent: From Zero to 600 Members and Angel Investment
Founded a room exchange platform for digital nomads. Pitched at South Summit, Warsaw, DES. Featured on TV.
2023137% Engineering Velocity: Transforming Delivery at an HR Fintech
Redesigned delivery processes at Hastee, increasing engineering output 137%. Led 13 engineers across 3 teams.
2023DES Malaga: Pitching to Investors at the Digital Enterprise Show
Pitched FlexRent at one of Europe's largest digital transformation events.
2023Radio Interview: Technology and Entrepreneurship
Radio interview discussing technology, entrepreneurship, and innovation.
2023On Stage at South Summit: Europe's Leading Startup Conference
Main stage pitch at South Summit, one of Europe's top startup conferences.
2023Featured on TV: Discussing Tech Innovation on Hola Andalucia
Television appearance on 101 TV Malaga's tech segment.
2023Video Interview: Product Vision and Startup Execution
In-depth interview on product vision, market strategy, and startup execution.
2023Pitching at Warsaw Startup Stage
International startup pitch competition in Warsaw, Poland.
2023Why We Pivoted a $2M Trading Engine to Microloans
The story of how Xcapit evolved from 400%+ returns to UNICEF-backed financial inclusion. What I learned about building products that matter.
2022400% Returns: How Bayesian Optimization Tuned Our Trading Strategies
Gaussian Process-based hyperparameter optimization for algorithmic trading. Featured in Cronista and CriptoNoticias.
2020Building AI Before ChatGPT: Custom ML at a UNICEF-Backed Fintech
Neural networks, genetic algorithms, and Bayesian optimization built from scratch with a team of 5 PhDs. Before the LLM revolution.
2020Reducing Data Requests to Zero: Building a Self-Serve Analytics Bot
Discord bot that democratized data access across the company. Eliminated 100% of ad-hoc data requests.
2020Building an FX Arbitrage Engine: How I Automated a Trading Desk
Multi-threaded Python system that exploited FX pricing inefficiencies at Argentina's largest broker. Led to promotion to Head of BI.
201921 Scrapers, 20% Market Share: Building a Competitive Intelligence Engine
How I built 21 real-time scrapers (including mobile app emulators) to monitor every competitor in the Argentine FX market.
2017From 5 Hours to Zero: Automating a Trading Desk's Post-Market Operations
Python-based automation that eliminated 5+ hours of daily manual work for a 5-person team. The evolution from VBA to full ETL pipelines.
2016Dealing with Heteroscedasticity
Technical article on statistical modeling and handling non-constant variance in financial data.
2019