Systems, Products & Execution

Case Studies & Research

Practical breakdowns of AI products, operational platforms, automation systems, payment reliability, and the engineering decisions behind startup execution.

Featured OutlineField Notes

Designing AI Agents

A practical view of agent boundaries, planning loops, memory, and evaluation in production.

12 min readRead outline
AI systems architecture visualization.
Distributed systems architecture illustration.

Distributed Systems

Systems

Event-Driven Architectures

A blueprint for decoupled services, async workflows, and operational clarity across teams.

10 min read
Startup infrastructure product interface.

Leadership

Strategy

Building Startup Infrastructure

Infrastructure decisions that keep early teams fast without creating avoidable future drag.

9 min read
VERO2026 platform interface.

Fintech

2026

VERO2026 AI-Native UPI Sandbox Platform

Designing a sandbox UPI network with virtual accounts, double-entry ledger accounting, event-driven services, and AI financial intelligence.

11 min read
Data Structures and Algorithms pattern-first repository.

Algorithms

Practice

Beyond LeetCode: Pattern-First DSA

A structured, pattern-first approach to Data Structures and Algorithms focusing on understanding, intuition, and tradeoff analysis over memorization.

8 min read

Building systems that survive real users.

I write about the decisions behind AI products, distributed services, automation, startup delivery, and technical leadership.

sayandeeppurkait789@gmail.com
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Also available on LinkedIn and GitHub.