sa.stacksimplified.com

Become a Solution Architect.
One Acme Corp payments story.

The fast, simplified path to becoming a seasoned Solution Architect and a cards & payments domain expert. Three connected tracks follow one company — Acme Corporation, an Indian cards & payments company — as you learn to architect its platform, master the payments domain, and apply microservices patterns.

Scenario-driven. Trade-off aware. Quick, Seasoned & Simplified.

Three Connected Tracks

🏛️
The craft · start here

Solution Architect

Think, decide, and communicate like a seasoned SA: drivers → requirements → quality attributes → trade-offs → design. Well-architected pillars, HA/DR, security & PCI-DSS, data, cost, and evolutionary architecture — applied to Acme.

Intro + 22-chapter planStart →
💳
The domain · India

Cards & Payments

Become a payments domain expert: the four-party model (issuer, acquirer, network, switch), UPI & RuPay, NPCI & RBI, PCI-DSS & tokenization, authorization, clearing & settlement, reconciliation, and fraud — India-focused.

Intro + 21-chapter planStart →
🧩
The patterns

Microservices

Microservices done right (and when NOT to): decomposition, sync vs async, saga, CQRS & event sourcing, transactional outbox & idempotency, API gateway, and resilience — every pattern with a concrete Acme payments example.

Intro + 20-chapter planStart →

🧠 How the three tracks fit together (no confusion)

📚 One company, one story, end to end

Every track follows the same Acme Corporation journey, so the learning connects. Understand the payments domain Acme lives in, architect its next-generation platform against real drivers and constraints, and implement it with the right microservices patterns — the way it happens in a real cards & payments company.

Understand the domain Architect the platform Apply the patterns Evolve & operate