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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Ios Developer - **Company:** Malwarebytes - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Apple IOS, Apple Mac Systems, Apple Xcode, Cloud Computing, Software Quality, Continuous Integration, Software Debugging, Video Game Development, Virtual Private Networks (VPN), Model View ViewModel, Mobile Security, Ios Frameworks, Backend, Git, Reactive Programming, Code Restructuring - **Published:** July 28, 2026 - **Apply:** https://www.buscojobs.com.es/senior-ios-developer-en-madrid-ID-364757599 ## About the Role extensions.Use modern tools and technologies (Xcode Cloud CI / i OS 16+) while contributing to innovative prototypes and exploring emerging solutions.Help create a strong engineering culture by mentoring teammates, sharing knowledge, and driving continuous process improvement.Skills You'll Need To HaveSelf?driven and results?oriented with the ability to work independently and deliver high?quality work.Expertise in i OS development with a strong track record of delivering and maintaining high?quality apps.Proficiency in Swift and Swift UI with a solid grasp of declarative UI frameworks and modern i OS development approaches.Advanced knowledge of Rx Swift and functional reactive programming (FRP), with ability to navigate and contribute to complex reactive codebases.Experience with MVVM architecture and modern architectural patterns.Excellent problem?solving skills and focus on building scalable, secure, and user?friendly llaborative mindset and ability to work effectively across teams, including design, product, and security.Passion for innovation and adopting new tools, technologies, and best practices.Skills That Are Nice To HaveExperience managing dependencies and modular architectures using tools such as SPM or Cocoa Pods.Understanding and experience with background execution, multi?process interactions, and constrained environments like app extensions.Experience with CI/CD workflows, preferably with Xcode Cloud and Git Hub Actions.Perks & BenefitsOpportunity to make a positive impact on users and the llaborative work environment that supports growth, development, and well?prehensive medical, dental, and vision insurance coverage (subject to change by country/region). Employee Referral Bonus Program.Wellness programs. (Benefits and perks subject to change by country/region)Seniority LevelMid?Senior levelEmployment TypeFull?timeJob FunctionEngineering and Information TechnologyIndustriesComputer and Network SecurityLocationMadrid, Community of Madrid, SpainReferrals increase your chances of interviewing at Malwarebytes by 2x. ## Description Join to apply for theSenior i OS Developerrole atMalwarebytes.Here at Malwarebytes, we believe that when you're free from threats, you're free to thrive.It all started in **** with one person who needed help with a malware infection, and a community coming together to find solutions.A product was born to help people, and has since grown to remove malware, protect devices, and adapt to ever?changing prevention.About MalwarebytesMalwarebytes was founded by Marcin Kleczynski after he accidentally infected his parents' computer while downloading a video game as a teenager.His experience revealed the lack of a fully effective solution, so he built Malwarebytes to create protection that works when people need it most.Today, the digital threat landscape is complex, and Malwarebytes aims to keep protection powerful, simple, and ahead of attackers.Malwarebytes is looking forA passionate and experienced Senior i OS Developer to join our talented team.You'll help us build a cutting?edge mobile security app that millions use worldwide.You should thrive on solving complex problems and enjoy collaborating in a mission?driven environment.What You Will DoArchitect, develop, and maintain the Malwarebytes Mobile Security app, ensuring it remains technically robust, innovative, and user?friendly.Enhance and maintain key app features such as VPN, SMS and Call Kit extensions, Safari extensions, and integrate web and cloud?based features within a modular SPM llaborate closely with UX designers, product managers, backend engineers, and security researchers to deliver seamless and secure functionality.Develop high?performance, reliable, and scalable solutions while ensuring code quality through thoughtful implementation, debugging, and close collaboration with the QA team.Maintain and refactor shared internal frameworks to support stability and functionality across i OS and mac OS teams.Address complex technical challenges related to background execution, multi?process interactions, and constrained environments like app extensions.Use modern tools and technologies (Xcode Cloud CI / i OS 16+) while contributing to innovative prototypes and exploring emerging solutions.Help create a strong engineering culture by mentoring teammates, sharing knowledge, and driving continuous process improvement.Skills You'll Need To HaveSelf?driven and results?oriented with the ability to work independently and deliver high?quality work.Expertise in i OS development with a strong track record of delivering and maintaining high?quality apps.Proficiency in Swift and Swift UI with a solid grasp of declarative UI frameworks and modern i OS development approaches.Advanced knowledge of Rx Swift and functional reactive programming (FRP), with ability to navigate and contribute to complex reactive codebases.Experience with MVVM architecture and modern architectural patterns.Excellent problem?solving skills and focus on building scalable, secure, and user?friendly llaborative mindset and ability to work effectively across teams, including design, product, and security.Passion for innovation and adopting new tools, technologies, and best practices.Skills That Are Nice To HaveExperience managing dependencies and modular architectures using tools such as SPM or Cocoa Pods.Understanding and experience with background execution, multi?process interactions, and constrained environments like app extensions.Experience with CI/CD workflows, preferably with Xcode Cloud and Git Hub Actions.Perks & BenefitsOpportunity to make a positive impact on users and the llaborative work environment that supports growth, development, and well?prehensive medical, dental, and vision insurance coverage (subject to change by country/region).Employee Referral Bonus Program.Wellness programs.(Benefits and perks subject to change by country/region)Seniority LevelMid?Senior levelEmployment TypeFull?timeJob FunctionEngineering and Information TechnologyIndustriesComputer and Network SecurityLocationMadrid, Community of Madrid, SpainReferrals increase your chances of interviewing at Malwarebytes by 2x. ## Related Videos - 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