Vishwajeet Singh
@vishwajeetsingh4
Senior iOS engineer who built VWO's iOS and React Native SDKs, shaping public APIs and integration documentation for enterprise clients.
IndiaWhat I'm looking for
At Wingify, I architected and built VWO's Feature Management & Experimentation SDKs for iOS and React Native, so enterprise clients could run feature flags and experiments in their mobile apps. I also designed a consistent public API and wrote integration documentation to make adoption simpler for client developers.
At Nintee, I joined the founding team and helped shape product direction from zero. I built and iterated on a habit-building app through experiments, analytics and user feedback, and prototyped LLM-powered features to explore where AI could improve the product.
After Nintee pivoted to education, I rapidly built and shipped product prototypes with React Native and Expo, validating ideas with real users. At Owltail, I led iOS development of its podcast player app, delivered features and App Store releases, and used app analytics to inform product decisions.
At Worksdelight, I delivered multiple client iOS projects and adopted React Native to extend the team's cross-platform offering. Earlier, at Apptunix, I built client apps in Swift and Objective-C and integrated third-party SDKs and backend APIs. I'm returning after a planned career break and seeking senior iOS or mobile SDK roles.
Experience
Work history, roles, and key accomplishments
Mobile Engineer
Wingify
May 2024 - Jul 2025 (1 year 2 months)
Architected and built VWO's Feature Management & Experimentation SDKs for iOS and React Native, designing a consistent public API and writing integration documentation. Collaborated with backend, product, and customer-facing teams to ship SDK features.
Mobile Engineer (Founding Team)
Nintee
Aug 2022 - Apr 2024 (1 year 8 months)
Joined as a founding team member to shape product direction, built a habit-building app using data-driven iteration, and prototyped LLM-powered features. After pivoting to education, rapidly shipped multiple product prototypes with React Native and Expo.
Lead iOS Engineer
Owltail
Aug 2020 - Mar 2022 (1 year 7 months)
Led iOS development of a podcast player app, owning feature delivery and App Store releases. Drove redesign of mobile and web apps, and turned app usage data into new feature ideas for the product roadmap.
iOS Developer
Worksdelight
Jul 2018 - Aug 2020 (2 years 1 month)
Delivered multiple client iOS projects in parallel, planning milestones and sprints to meet deadlines. Acted as main technical point of contact for clients and adopted React Native for cross-platform development.
Junior iOS Developer
Apptunix
Feb 2017 - Jul 2018 (1 year 5 months)
Converted to full-time after a 6-month training programme and shipped first iOS app to the App Store. Built iOS apps in Swift and Objective-C for clients across various sectors, integrating third-party SDKs and backend APIs.
Education
Degrees, certifications, and relevant coursework
Ropar, Punjab, India
Bachelor of Technology, Electronics & Communication
2011 - 2015
Bachelor of Technology in Electronics & Communication from 2011 to 2015.
Tech stack
Software and tools used professionally
Availability
Location
IndiaAuthorized to work in
Salary expectations
Job categories
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