iOS Developer

At 300 Software, we believe technology isn’t a luxury — it’s what separates companies that remain stuck in operational chaos from those that scale with strategy and consistency.

We build custom software that solves real business problems, with global clients, lean senior teams, and a culture built on trust, ownership, and results.
We’re looking for an iOS Developer who is strong with Swift, architecture patterns, and modern mobile engineering practices for one of our clients in Spain. This means that you need to be able to communicate in either English or Spanish.

This professional will work on a large-scale mobility platform used daily by thousands of users , helping evolve native apps, improve performance, and implement new features with real impact.

This role is 100% remote and fully integrated with an international team.

Must-Have Skills Strong experience with Swift
Solid understanding of iOS frameworks (Core Data, Core Animation, etc.)
Experience with VIPER architecture
Experience with Moya / Alamofire
Experience with RxSwift
Experience with REST/JSON APIs
Experience with offline storage, threading, and performance tuning
Understanding of Apple design guidelines
Git
Nice to Have Objective-C experience
CI/CD for mobile
Automated tests
Experience in apps with high usage volume