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
Learning to sell in public, on camera
Eleven years writing software and running teams. Selling and leading in public is the part I am worse at, so I am learning it out loud. A new video every week, in Spanish.
Now
What I'm doing
A new video every week ↗
I publish in Spanish about learning to sell and lead, with the real numbers and the parts that go badly.
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. 800+ stars, 2k+ installs.
