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Microservices Architecture Design & Development for Scalable B2B Systems FAQs

What is microservices architecture?

Microservices architecture decomposes an application into small, independently deployable services that communicate via APIs or events. It enables independent scaling and team autonomy but increases operational overhead.

When should I use microservices vs. a monolith?

A modular monolith is better for teams under 30 engineers. Microservices are justified when you need independent scaling, have massive team coordination issues, or must isolate data for regulatory reasons.

What is the strangler fig pattern?

It is the recommended way to migrate from a monolith. You incrementally extract functionality into new services behind an API gateway, eventually retiring the monolith piece by piece without a big-bang rewrite.

What is event-driven architecture?

A pattern where services communicate by publishing and consuming events (via Kafka/RabbitMQ) rather than making synchronous calls. It provides temporal decoupling and better resilience to downstream failures.

What is a service mesh and do I need one?

An infra layer for service-to-service communication (Istio/Linkerd). You need one when managing 10+ services or requiring complex traffic management and zero-trust security.

How do you debug distributed systems?

We implement the three pillars of observability: Distributed Tracing (to see request flow), Structured Logging (to retrieve logs via Trace ID), and Metrics (to monitor health).