Xavier Mas Leszkiewicz
Software architect and engineering lead. Distributed systems, data platforms and cloud.
Dubai, UAE · Spanish/EU citizen
11 years shipping in production. Telefónica (IPTV data across two continents), Elliptic (blockchain forensics), General Motors (serverless systems), eDreams (ML in production).
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Track record
Proof, not promises
2 continents, 1 pipeline
Telefónica
Merged Spain and LATAM IPTV event infrastructure into a single terabyte pipeline serving millions of households (Python, Kafka, MongoDB).
15-person product team
Elliptic
Led feature delivery as second-in-command on Elliptic's blockchain investigation product. Graph-based cross-chain forensics, used by institutional compliance analysts.
100% serverless
General Motors
Designed and built GM's alert and notification system with TypeScript, API Gateway, Lambda and DynamoDB. Architected for bursty traffic, with no servers to manage.
Channel
What engineering school never taught me, on camera
Eleven years writing software. Meetings, managers, getting paid and selling are the part nobody taught me. I learned it the hard way and I explain it as a system. One short video a day, in Spanish.
Now
What I'm doing
A short video every day ↗
I publish in Spanish about the part of the job nobody teaches engineers: meetings, managers and getting paid. Mistakes included.
Plan AI
Open-source meeting assistant for software teams. It turns a recorded meeting into tickets, specs and diagrams.
Plan AI
From meeting to shipped tickets
Bot-free meeting recorder that runs a local pipeline over transcripts and emits Jira tickets and architecture diagrams. Electron, BullMQ, Qdrant. Open source on GitHub.
