Senior iOS Developer

Engineering & Development
|
Senior
Senior
Montenegro
Serbia
|
Montenegro
Serbia
open
May 15, 2026

About the company

First Line Software works with some of the world's top businesses and organizations across industries such as healthcare, real estate, data engineering, warehouse automation, retail digitalization, mobile app development, and e-commerce. Our projects are as diverse as our people — and we believe in building software through collaboration, transparency, and shared success.

The project and your role

We are looking for a Senior iOS Developer to join an existing, experienced mobile team working on a long-term project. You will contribute to the development of a native iOS application, collaborating closely with other engineers to build high-quality, scalable, and maintainable features using the latest Apple technologies.
‍

‍Key Responsibilities

  • Design, develop, and maintain high-quality native iOS features using Swift
  • Build and evolve UI components using SwiftUI and/or UIKit
  • Collaborate with the existing iOS team to ensure code quality, consistency, and best practices
  • Participate in code reviews and contribute to architectural decisions
  • Work closely with backend engineers, designers, and product to deliver end-to-end solutions
  • Identify and resolve performance bottlenecks and technical debt
  • Contribute to the continuous improvement of the development process and team standards

‍

Your skills

Requirements

  • 5+ years of experience developing native iOS applications
  • Strong proficiency in Swift
  • Solid hands-on experience with SwiftUI and UIKit
  • Deep understanding of iOS frameworks, design patterns (MVVM, Clean Architecture, etc.), and Apple's Human Interface Guidelines
  • Experience integrating RESTful APIs and working with asynchronous programming
  • Familiarity with version control systems, particularly Git
  • Strong communication skills and ability to work effectively in a distributed, collaborative team

Nice to Have

  • Experience with Combine or Swift Concurrency (async/await)
  • Knowledge of CI/CD tools for iOS (Fastlane, Xcode Cloud, Bitrise)
  • Familiarity with unit testing and UI testing (XCTest, XCUITest)
  • Experience with native components such as CoreLocation, CoreData, Push Notifications, or similar

‍

What we can offer

  • Our modern stack projects are the right mix of exciting and challenging
  • Gain access to our diverse range oftraining programs, courses, and certifications;
  • Choose your work style -remote, on-site or hybrid in one of our stunning offices. We offer the freedom of flexible working hours.
  • Enhance your language skills with our corporate English classes
  • Work from anywhere and explore the world with our Workation program

‍

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Our Hiring Process

Getting started with us

Here's what you can expect when you send us your application

Step 0

Tech Talent Hunt

Be scouted or apply for your role

Step 1

Meeting & Connecting

Our first step to building lasting relationships

Step 2

Uncovering Potential

Your HR interview

Step 3

The Code Challenge or Technical Interview

It's time to show what you can do best!

Step 4

Client’s Interview

Demonstrating expertise to our future partners

Final

The Last Piece of the Puzzle

Job offer to finalize our tech team

Join our team of innovative thinkers

Apply now!

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First Line Software, 2025

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