iOS Inside #005 – Write like a senior, grow like a pro

Hey dev!
You know that piece of code that works but feels off? Or worse — the one that’s "fine" but you know it could be way better?

This drop is for you.

We’re diving into how senior iOS devs think, write, and structure code — and how those small changes bring huge gains.

Plus:

• Fresh Xcode tips to boost your daily flow

• A glance at the iOS job market in 2025 — top companies and how to stand out

• And a new segment we’re excited about:

From “Just Works” to “That’s Clean!” — real refactoring examples

Let’s go.

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Refactoring like a senior: clarity comes first

Let’s kick it off with a simple example you’ve probably written before.

Common version

if user.isLoggedIn == true {
    if let name = user.name {
        print("Hello, \(name)")
    }
}

It works. But we can do better.

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Senior-level version

guard user.isLoggedIn, let name = user.name else { return }
print("Hello, \(name)")

Why this is better:

• No nested conditionals

• guard handles early exits, making the happy path obvious

• More concise, easier to scan

Clean code often doesn’t need comments — its structure tells the story.

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Refactoring in action: the classic form validation

Let’s level up. Here's a function we’ve all written at some point:

Common version

func validateForm(email: String, password: String) -> Bool {
    if email.isEmpty || !email.contains("@") {
        print("Invalid email")
        return false
    }

    if password.count < 6 {
        print("Password too short")
        return false
    }

    return true
}

It works. But it couples UI feedback with logic, and doesn’t scale well.

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Senior version

enum FormValidationError: Error, CustomStringConvertible {
    case invalidEmail
    case shortPassword

    var description: String {
        switch self {
        case .invalidEmail:
            return "Invalid email"
        case .shortPassword:
            return "Password too short"
        }
    }
}

func validateForm(email: String, password: String) -> Result<Void, FormValidationError> {
    guard email.contains("@") else {
        return .failure(.invalidEmail)
    }

    guard password.count >= 6 else {
        return .failure(.shortPassword)
    }

    return .success(())
}

In use:

switch validateForm(email: inputEmail, password: inputPassword) {
case .success:
    submit()
case .failure(let error):
    showAlert(message: error.description)
}

Why this version is better:

• Logic is reusable and testable

• UI and logic are separated

• Easy to add new validation rules

• Scales naturally as your app grows

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Xcode tips that’ll make your life easier

You probably use ⌘ + Shift + O, but these tips go deeper:

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1. ⇧ + ⌘ + J — Reveal in Project Navigator

Instantly shows your current file in the navigator.
No more scrolling through folders to locate it manually.

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2. Control + ↑ — Switch between code and storyboard/XIB

Useful if you're still on UIKit. Fast and seamless.

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3. Create folders as groups

Right-click in the navigator and select New Group with Folder.
Keeps things tidy without messing up file structure.

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4. ⌘ + Option + Control + G — Highlight all occurrences

Put your cursor on a variable, run this shortcut, and see all matches in your file.
Perfect for focused refactors.

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5. Custom snippets with Tab trigger

Drag any reusable block into the Snippet Library and assign a keyword.
Use ⇥ (tab) to trigger it while typing.

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The iOS job market in 2025: where the action is

The demand for iOS devs is still strong — but the bar is higher.
Companies want devs who write clean code, think long-term, and understand product.

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Companies to watch in Brazil:

• Nubank – scalable architecture, strong engineering culture

• iFood – high UX standards and automation

• QuintoAndar – modern stack, clean code

• Wildlife Studios – game industry engineering excellence

• Gympass – international teams, strong mobile focus

• XP Inc. – tech as strategy, fast-paced teams

• Innvo Financial Tech – growing consultancy with major financial clients and a strong tech culture

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Global leaders:

• Shopify – modularization and SwiftUI pioneers

• Airbnb – scalable architecture, strong tooling

• Spotify – open-source culture and mobile focus

• Apple – obvious, but competitive

• Revolut – fintech edge with code cleanliness

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What they look for:

• Modern Swift (5.9+, Swift 6.0)

• Experience with SwiftUI

• Understanding of architecture

• Testable, readable, maintainable code

• Clear communication with product and design

• Git, Xcode, CI/CD knowledge

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How to stand out:

• Keep your GitHub active

• Write posts (even short ones) about what you learn

• Share your thought process, not just your stack

• Understand async/await, Swift Concurrency, TCA, modularization

• Contribute to open source or build your own libs

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More than syntax, companies are hiring for clarity, intent, and decision-making.

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Wrap-up: write like a senior, grow with intention

What separates senior devs from the rest isn't just code — it's clarity, consistency, and adaptability.

This drop showed you how to:

• Refactor real code for better structure and reuse

• Use the Xcode to speed up your daily workflow

• Understand where the iOS market is going and how to move with it

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Coming up next:

In iOS Inside #006, we’re diving into:

• Swiftly 1.0

• Real-world productivity for iOS teams

• A surprise new section featuring community-driven code

Thanks for reading. Until next time:

Build. Refactor. Grow. Share.

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