The Architecture Review Checklist for Inheriting Legacy Systems
A practical checklist for assessing stability, architecture, developer velocity, and operational risk when you inherit a legacy SaaS system.
I build the invisible systems that move money, food, and opportunity across East Africa.
10+ yrs Staff+ level
500K+ Users Impacted
Laravel & cloud architecture
When 500,000 people pay a merchant, track a harvest, or grow a business on platforms I’ve architected, they never think about the infrastructure underneath — and that’s the point. I’m Kennedy Mutisya, a Nairobi-based CTO & Staff Engineer. For 10+ years I’ve turned the hardest problems SMEs and enterprises face — unreliable systems, traffic they can’t handle, growth they can’t sustain — into platforms that quietly work at scale.
Expertise
The tools I reach for when the problem is real
01 / 04
Languages & Frameworks
- PHP
- Laravel
- Livewire
- TypeScript
- Vue.js
- Python
02 / 04
Cloud & Infrastructure
- AWS
- Docker
- Kubernetes
- Terraform
- CI/CD
- Nginx
03 / 04
Data & Messaging
- PostgreSQL
- MySQL
- Redis
- RabbitMQ
- Elasticsearch
- Event-Driven Systems
04 / 04
Architecture & Leadership
- System Design
- Domain-Driven Design
- Observability
- Technical Strategy
- Team Leadership
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