Xavier Mas Leszkiewicz
Software architect & engineering lead - distributed systems, data platforms & cloud.
Dubai, UAE · Spanish/EU citizen
11 years shipping at scale - 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's IPTV event infrastructure into a single terabyte-scale 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 - TypeScript, API Gateway, Lambda and DynamoDB, architected for bursty traffic with zero servers to manage.
Now
What I'm building
Available for architecture & engineering leadership ↗
Leading architecture across four client engineering teams through BlueBerryBytes. Based in Dubai. Open to senior architecture and engineering leadership roles in the UAE, and to selected consulting engagements.
Building Plan AI
An open-source AI meeting assistant for software teams - from recorded meeting to scoped 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.
