06. / Proof of Work

Writing

Technical writing on distributed systems, backend engineering, and the thinking behind reliable software at scale. Articles are in progress — coming soon.

Financial Systems

FintechIdempotencyPostgreSQL

Designing Idempotent Payment Flows

What idempotency really means in financial systems, why it is harder than it looks, and the patterns that make it tractable in production environments.

8 minDraft

Distributed Systems

Distributed SystemsCAP TheoremConsistency

Consistency vs. Availability: Decisions That Actually Matter

The CAP theorem is commonly cited and rarely applied correctly. A practical examination of when consistency should win, when it should yield, and how to reason about the tradeoff in concrete systems.

10 minDraft
KafkaDistributed SystemsStreaming

Kafka Consumer Group Design for Ordered Processing

Partition assignment, rebalancing, and the nuances of maintaining ordering guarantees across consumer groups in production Kafka deployments.

8 minDraft

System Design

KafkaEvent-DrivenArchitecture

When Event-Driven Architecture Pays Off

Event-driven design is not universally better than request-driven. Here is how to identify the workload characteristics that make each approach the right choice.

7 minDraft

Backend Engineering

PostgreSQLPerformanceDatabase

Schema Design for High-Throughput Write Workloads

How write amplification, index overhead, and lock contention shape schema decisions when throughput is the primary constraint.

9 minDraft

Engineering Philosophy

State MachinesDesign PatternsCorrectness

State Machines as a First-Class Engineering Tool

Why modeling domain logic as explicit state machines eliminates an entire class of bugs, and how to implement them without over-engineering.

6 minDraft

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