Hritesh Sonawane.
I build security systems. Cryptography, identity, infrastructure.
Notes
Security
- 0128 lessons
AI security engineering
How AI systems are attacked and how they are defended, from the first threat model to a running agent.
- 0221 lessons
Application security
Identity, permissions, untrusted input, and the mistakes that turn an API into an attack surface.
- 0322 lessons
Infrastructure security
Workload identity, secrets, isolation, and the trust decisions underneath a running service.
- 0420 lessons
Cryptography
Keys, signatures, and encryption, connected to the assumptions that make them useful.
Systems and AI
- 0563 lessons
Systems design
Invariants, failure, concurrency, scale, and data, then the same discipline applied to systems built around models: interfaces, retrieval, agents, evaluation, and AI infrastructure.
- 0630 lessons
Machine learning systems
From gradients to clusters: the mathematics of training, transformers, GPU architecture and performance, and training at scale.
- 0724 lessons
Inference engineering
How large models are served: prefill and decode, KV cache memory, batching, quantization, serving engines, vLLM internals, and running inference in production.