Rajkumar S.
Sr. iOS Developer
Rajkumar is a pixel-oriented mobile developer with over a decade of rock-solid experience building mobile applications natively using Swift/Objective-C and React Native.
He is a self-starter with a strong emphasis on pixel-perfect designs and clean, highly performant logic implementations. He understands coding practices (SOLID, DRY, KISS) and SDLC and has a keen interest in mobile development.
He is a valuable asset to any team as he can suggest brilliant solutions from his professional perspective.
Main expertise
- Mobile 10 years
- iOS 10 years
- Objective-C 10 years
Other skills
- Firebase 5 years
- REST API 4 years
- Figma 4 years
Selected experience
Employment
Independent Contractor
Freelance - 5 years 9 months
- Worked as an independent contractor/principal iOS engineer for multiple early-stage startups based in USA, Europe & India.
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Responsible for architecture, development, delivery, and maintenance of mobile applications using Swift & react-native.
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Collaborated with product, backend, and design teams to define & design cutting-edge features.
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Startups he has consulted;
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MyYogaTeacher
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Medit
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Marsplay
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Unlu
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Calm Sleep
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Godly.cloud
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Heyo
Technologies:
- Technologies:
- Mobile
iOS
Swift
React Native
Redux.js
TypeScript
UIKit
CoreData
Firebase
VSCode
Solutions Architect (iOS)
Punchh Inc. - 3 years 1 month
- Created native (Objective-C & Swift) Punchh framework, which is used in over 200 white-labeled applications with over 5 million overs.
- https://punchh.com
Technologies:
- Technologies:
- Mobile
iOS
Objective-C
Swift
React Native
UIKit
CoreData
Firebase
Sr. iOS Developer
Dot Squares - 1 year 7 months
- Interacted with clients in understanding their requirements, conceptulised robust and scalable solutions and developed business & enterprise mobile apps.
Technologies:
- Technologies:
iOS
Swift
iOS Developer
Konstant Info Solutions - 9 months
- Worked as a part of development team building iOS applications using Objective-C.
Technologies:
- Technologies:
iOS
Objective-C
Education
MSc.Computer Applications
Sikkim Manipal University · 2010 - 2012
BSc.Computer Applications
Jai Narain Vyas University · 2007 - 2010
Portfolio
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