Available to hire
I’m Boris Nikolić, a Senior Mobile Engineer passionate about building clean, scalable iOS apps and modular SDKs. I have 10+ years of experience delivering healthcare, fintech, and mobility solutions, with deep Swift/SwiftUI expertise and a working knowledge of Android and React Native.
I love Clean Architecture, testing, and maintainable software design, and I thrive in Agile teams collaborating with product, design, and QA to ship great user experiences. Remote-friendly, self-motivated, and used to leading iOS SDK development and cross-client white-label projects.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
English
Advanced
Serbian
Fluent
Bosnian
Fluent
Croatian
Fluent
Work Experience
Senior Mobile Developer at Primer
June 1, 2023 - PresentMobile Engineer on the Acceptance Team, building modular payment SDKs for merchant integration. Lead iOS SDK development using Swift and Swift Package Manager. Contribute to Android SDK (Kotlin) and React Native SDK when needed. Apply Clean Architecture and SOLID principles with MVVM patterns for scalable, testable codebase.
Senior iOS Developer at Doktor.se
January 1, 2021 - June 30, 2023Led development of white-label healthcare app serving thousands of users across Europe. Extracted common functionalities into reusable SDK shared among multiple clients. Prepared application for strict medical certification in Germany and Sweden. Collaborated closely with Product Owner to deliver features with optimal user experience.
Senior iOS Developer at Urban Connect AG
January 1, 2020 - January 31, 2021Integrated BLE smart locks for bikes, scooters, and cars in mobility platform. Implemented Clean Architecture and SOLID principles in legacy codebase, improving maintainability. Led app rebranding initiative in collaboration with design team.
Mobile Application Developer at Red-Black Tree
November 1, 2017 - January 31, 2021Developed multiple Digital Healthcare applications for various clients. Integrated BLE smart door locks and implemented XMPP chat protocol. Applied Clean Architecture and SOLID principles across all projects.
iOS Developer at Codetribe
January 1, 2016 - November 30, 2017Built real-time map-tracking delivery and ride-sharing applications. Integrated BLE medical devices for self-diagnosis features. Collaborated with Product team on feature development in Agile environment.
iOS Developer at BLGRD
February 1, 2015 - December 31, 2015Developed real-time tracking, meditation guide, and photo editing applications.
Frontend Web Developer at Freelance
April 1, 2012 - March 31, 2015Freelance web development for US-based clients.
Education
Professional Engineer of Electrical Engineering and Computer Science at Visoka ICT
January 1, 2011 - December 31, 2014Professional Engineer of Electrical Engineering and Computer Science at Visoka ICT
January 1, 2011 - December 31, 2014Qualifications
Industry Experience
Healthcare, Software & Internet, Financial Services, Professional Services, Transportation & Logistics
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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