01AI / ML / Research
Sentinel: an autonomous multi-agent AI system
Intent-routed specialist agents, with federated fine-tuning so the data never leaves
Personal project
4Specialist agents
Work
Systems Owais Barkati has designed and shipped, written up the way an engineer would want to read them: the problem, the constraints, the architecture, what was rejected along the way, and what the numbers did afterwards.
02Backend / Data
Broadcasting to 10 million concurrent users
A Kafka fan-out system that got the database out of the notification path
FyreGig · Backend Developer Intern
10M+Concurrent users supported
03Data / Backend
Sub-second MySQL to ClickHouse replication
A Debezium CDC pipeline feeding loan-risk dashboards without touching the source database
FyreGig · Backend Developer Intern
Sub-secondReplication latency
04Backend
Cutting an API from 10 seconds to 1.5
Why a recursive org-tree endpoint was slow, and what breadth-first traversal fixed
FyreGig · Backend Developer Intern
−85%Response latency
05AI / ML
The assistant on this site has no vector database
Why retrieval was the wrong answer for an 8,000-token corpus, and what replaced it
This website
~$0.0012Cost per cached turn