Open source billing and usage metering for companies on usage-based pricing. Shipping product end to end, from the API layer to the UI, plus the AI tooling the team develops with: engineering loops, agentic workflows and reusable skills.
Domenico Falco
Senior Full-Stack Engineer
15 years shipping digital products.
Now building open source billing at Lago.
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Experience
8 roles · 15 years
Led multiple B2B and B2C teams of 4 to 5 engineers each, on platforms serving millions of users where nearly everything shipped behind an A/B test. Full-stack across the TypeScript ecosystem, from React and Next.js surfaces to NestJS and Express services on AWS.
Full-stack engineer within eBay's global Classifieds Group, on Italy's leading second-hand car marketplace. Built BFF APIs in Node.js and Java Spring Boot, plus the UI layer consuming them.
Consultant embedded in enterprise client teams, delivering digital products across multiple engagements in an agile, multi-country setup.
Built autoscout24.com, Europe's largest automotive classifieds platform, inside an agile team that was strongly data and test driven, with continuous delivery.
Built UI web components and maintained the Viabuy Prepaid MasterCard web application.
Complex web front-end projects at one of Germany's biggest digital agencies. Clients included Deutsche Bank, Postbank and more.
E-commerce and digital projects for major Italian and international brands: Ferrari, Maserati, Valentino Rossi, Jeep, Benetton, Coccinelle, De Cecco. Researched and codified the team's front-end practices.
AI & Developer Experience
The tooling I build to ship faster
Shipping daily without losing quality depends on the tooling a team works with, especially in the AI era. Part of my time goes to engineering loops, automated quality gates, agentic workflows running in isolation so tasks can run in parallel, and reusable skills tailored to the company they serve.
Side Projects
Built on my own time
Writing
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Contact
Let's connect
Want to chat about tech, open source or anything engineering? Drop me a line.