Choose Between Microservices and Modular Monolith for a Scale-Up
Overview
What this challenge is about.
Audit a Rails codebase and survey squads to choose between microservices and modular monolith. Deliver a decision memo and 90-day plan. Get a verifiable certificate.
The scenario
The scale-up (around 700 dental practices, EUR-only billing) cannot afford an 18-month microservices migration that doesn't pay back — and cannot afford to be paralyzed by a 'should we?' debate either.
The Brief
What you'll do, and what you'll demonstrate.
Recommend monolith vs modular monolith vs microservices for a 50-person engineering org with evidence from the codebase, team topology, and scaling pressures.
Earning criteria — what you'll demonstrate
- Use git co-change analysis to find bounded contexts in a Rails monolith
- Apply Team Topologies (Stream-aligned, Platform, Enabling, Complicated-Subsystem) to architecture decisions
- Compare microservices vs modular monolith vs status quo with evidence
- Write a decision memo that survives engineering scrutiny and gets sign-off
Program Fit
Where this fits in your program.
Sharpens the same skills your degree expects you to demonstrate.
Software Architecture
Master · Software Engineering
Strong alignment
This challenge maps to Software Architecture at the Master level. It sharpens the same practical skills your coursework expects — but in a real industry context with actual constraints and deliverables.
Skills
Skills you'll demonstrate.
Each one shows up on your verified credential.
- Architecture Decision
Apply architecture decision to solve real industry problems and demonstrate production-level capability.
- Team Topologies
Apply team topologies to solve real industry problems and demonstrate production-level capability.
- Modular Monolith
Apply modular monolith to solve real industry problems and demonstrate production-level capability.
- Microservices
Apply microservices to solve real industry problems and demonstrate production-level capability.
- Codebase Analysis
Apply codebase analysis to solve real industry problems and demonstrate production-level capability.
- Decision Memo
Apply decision memo to solve real industry problems and demonstrate production-level capability.
Careers
Career paths this challenge builds toward
Completing this challenge demonstrates skills that transfer directly to these roles: