Here at Malwarebytes, we believe that when you’re free from threats, you’re free to thrive. It all started in 2008 with one person who needed help with a malware infection, and a community coming together to find solutions. In that moment in time a product was born for all people, with a mission to rid the world of malware. Our product has since grown and evolved, from removing malware, to protecting devices, to ever-changing prevention.

About Malwarebytes Inc.

Malwarebytes began after our founder, Marcin Kleczynski, accidentally infected his parents’ computer while downloading a video game as a teenager. At the time, there was no product that could fully solve the problem, so he set out to build one. That early experience shaped our mission: to create protection that works when people need it most.
Since then, the digital threat landscape has only grown more complex. Attackers are faster, stealthier, and more sophisticated, while traditional solutions often overwhelm people with complicated tools and settings. At Malwarebytes, we believe protection should be both powerful and refreshingly simple because if security feels too hard to use, people will not use it. That is why our aspiration is always to stay one step ahead: cutting through the noise, stopping threats others miss, and delivering peace of mind in an unpredictable digital world. 

Malwarebytes is looking for..

a passionate and experienced Senior iOS Developer to join our talented team. This is an opportunity to make a global impact by contributing to a cutting-edge mobile security app used by millions worldwide. You’ll thrive here if you enjoy solving complex problems and collaborating in a mission-driven environment.

As a Senior iOS Developer, you will play a critical role in shaping the future of the Malwarebytes Mobile Security app, built with a SwiftUI-first approach and continuously evolving toward a more modern architecture. You’ll help drive the transition from RxSwift to Swift Structured Concurrency (async/await), improving performance, scalability, and developer experience across the codebase.

What You Will Do:

• Lead and contribute to the evolution of the app’s asynchronous architecture, transitioning from RxSwift to Swift’s Structured Concurrency (async/await) to improve code clarity, maintainability, and performance.
• Build the Malwarebytes Core Product iOS app
• Develop features including VPN, SMS/CallKit, Safari extensions, and cloud-based services within a modular SPM architecture.
• Write high-quality, scalable code, troubleshoot issues, and ensure strong app performance.
• Solve complex challenges involving background processing, app extensions, and multi-process environments.
• Work with modern iOS technologies and contribute to new product ideas and prototypes.

Skills You'll Need to Have:

• Strong experience with RxSwift and/or Combine, with exposure to or interest in Swift Structured Concurrency (async/await).
• Expert-level experience with Swift and SwiftUI, with SwiftUI as a core production UI framework.

• Solid iOS development experience with published production apps.
• Strong MVVM architecture experience.
• Experience building scalable, high-quality mobile applications.
• Strong debugging and problem-solving skills.
• Ability to work independently and take ownership.
• Experience collaborating with Product, Design, QA, and Engineering teams.

Perks & Benefits:

• A great work environment that supports growth, development, and well-being 
• Comprehensive medical, dental, and vision insurance coverage, subject to change by country/region
• Employee Referral Bonus Program
• Wellness programs 

An opportunity to do something great for yourself and the world 

(Benefits and Perks subject to change by country/region)