Senior Full-Stack Engineer, 15+ years. Currently acting CTO at a small US startup, where I lead a team of 10 and still ship production code every week.
The work I keep coming back to is the unglamorous kind. Payment flows that must not lose money, event pipelines where a wrong number turns into wrong revenue reporting, and queries that fall over at peak load. 15 of those years were remote with US-based teams, from Europe.
Open to senior and lead engineering roles, remote or in Valencia.
- TypeScript and Node.js, NestJS, Express, Python and FastAPI
- React, Next.js, React Native
- PostgreSQL, ClickHouse, MongoDB, Redis, Kafka
- AWS and Google Cloud, Docker, CI/CD, observability, cloud cost control
- Payments and risk, Apple Pay, Google Pay, KYC, fraud prevention, analytics
- LLM features in production, AI agents, AI-assisted engineering workflows
SaaS Production Readiness Review Toolkit, a methodology for stage-appropriate technical reviews of early products. It is a public method, not a client case study and not a compliance audit.
Most of my commercial work is private or client-owned, so it is not here.
I also take independent engagements reviewing the technical state of a SaaS platform and deciding what to fix first. Architecture and code reviews, infrastructure cost analysis, production readiness, AI-agent setup.