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iOS Developer

Rounds

Rounds

Software Engineering
Poland
Posted on Sep 22, 2025

iOS Developer

  • Engineering
  • Poland
  • Senior
  • Full-time

Description

iOS Developer

[Freelance, Full-time, Remote GMT+0/GMT+4]

SNEAK PEEK

⇨ Location: Remote, GMT+0/GMT+4

⇨ Interview process: HR interview ⇨ take-home challenge ⇨ technical discussion ⇨ final interview ⇨ offer

⇨ Contact: For questions please reach out to: hr@rounds.com

WHO ARE WE?

At Rounds, we believe in harnessing the power of cutting-edge technology to drive business success. Our transformative, machine-learning technology identifies and optimizes mobile assets, while our team of experts, with their unparalleled human capital and business acumen, provides the strategic direction and support to turn mobile assets into profitable businesses. Together, we are revolutionizing the mobile industry. Learn more about us at www.rounds.com.

THE ROLE

We are looking for a highly experienced iOS developer passionate about iOS development to help build and scale our iOS apps portfolio. In this role, you will assist our R&D team in creating, coding, testing, and maintaining various iOS apps using the latest technologies, including AI tools. You will work closely with other team leads, developers, and QA testers, using the Agile methodology and a quality-first approach.

Hiring manager: Roie Shimon Cohen, iOS Team Leader

[https://www.linkedin.com/in/roie-shimon-cohen-77a6a025/]

RESPONSIBILITIES:

  • Collaborate with cross-functional teams to define app specifications, design, and architecture
  • Implement best practices in app development, UI/UX, and coding standards
  • Monitor app performance, troubleshoot issues, and optimize for efficiency.

Requirements

WHAT ARE WE LOOKING FOR?

Must-have:

  • 5+ years of experience developing iOS apps
  • Experience with UIKit and SwiftUI
  • Proficiency in Swift
  • Expertise in multithreading and memory management
  • Familiarity with commonly used iOS components and libraries
  • Solid understanding of mobile advertisement and IAP
  • Proven track record of developing apps released on App Store (100,000+ downloads)
  • Knowledge of Agile methodology: Kanban
  • Excellent communication skills in both written and verbal English

Nice-to-have:

  • Experience with Objective-C
  • Experience with Flutter

HOW DO WE WORK?

We are a distributed team of more than 150 people, all working remotely and communicating partially synchronously (we usually overlap with our teams for 5 hours daily and are free to work on some of the tasks whenever it suits us best). We value open communication, proactivity, and work/life balance and we measure our freelancers on performance, rather than on the time spent on the job.

WHAT’S IN IT FOR YOU?

  • Fully remote work model
  • Flexible full-time working hours
  • Competitive pay, based on skills and experience
  • Opportunity to grow together with the company & take ownership from day 1

INTERESTED?

Our recruitment process consists of the following steps:

HR interview: ~45 min.

Take-home challenge (around 4 hours of work)

Technical discussion with our Hiring Manager and Senior iOS Developer: ~60 min.

Final interview with our VP of R&D Mobile & Hiring Manager: 30 min.

Get in touch at hr@rounds.com. We’d love to hear from you!