Jose Carlos Rivas

SECTOR 02 · CASE STUDIES

Work

Selected systems, written up properly: the problem, the constraints, what shipped, and what it taught me.

  1. RealEstateAPI — property search at production scale

    Operating RealEstateAPI's property-data platform serving tens of millions of requests a week — pagination correctness, latency regressions, and billing systems that have to be right.

  2. HiLo — a journaling app my family actually uses

    A daily highs-and-lows journal with private family circles. Flutter + Supabase, shipped to iOS and the web in a single sprint.

  3. Kleos — persistent memory for AI agents

    An open-source memory substrate: semantic recall, decay and reinforcement, and inter-agent messaging, backed by Elasticsearch.