🧠Lessons I Learned While Working on a Large-Scale iOS Project
Over the past several months, I’ve been working as an iOS Developer on a large-scale fintech application built entirely with UIKit. It’s a complex and fast-moving project with strict requirements — and it’s taught me a lot.
Here are a few lessons I took away from the experience.
🔍 1. Clarity Beats Cleverness
When working in a large team, writing “smart” code doesn’t help anyone. Readability, predictability, and naming conventions matter more than one-liners or tricky patterns.
What helped:
- Writing explicit, easy-to-understand logic
- Avoiding unnecessary abstraction
- Adding brief but useful inline comments
🎯 2. Focus on the User Flow, Not Just the Screen
In larger apps, it's easy to get stuck on building individual screens. But the user doesn't care about screens — they care about how things connect. Understanding full flows and edge cases early helped avoid a lot of rework later.
🔄 3. UIKit Still Delivers (When Organized Well)
Yes, SwiftUI is shiny. But UIKit is battle-tested, and with the right structure, it's perfectly capable — especially in production-scale apps.
- Reusable components and view models saved time
- Keeping screens lean and responsibilities clear made features easier to extend
- Layout tools like SnapKit improved iteration speed
🚀 4. CI/CD = Developer Happiness
Automation changed the way we release. With build tools, versioning, and internal distributions streamlined, I spent less time on repetitive tasks and more time solving actual problems.
🤝 5. Communication > Code
The biggest time-saver? Not a shortcut or a library — just asking the right question early.
Whether it’s about a feature spec or an API change, good communication prevents bad assumptions.
Final Thought
Big projects can be intimidating. But with clean UIKit, a bit of automation, and solid teamwork, they're manageable — and even enjoyable.
đź“© me@batuhangun.day
Let’s build something worth shipping.