Rajan Singh
Rajan Singh

Staff iOS Engineer and Mobile Platform Lead

Actively looking · Member since 7 Nov 2026
Location
Lucknow, India
Desired salary
Unspecified
Work preference
Remote Only / Full Time
Experience level
Lead

About

Professional summary

I am a Staff iOS Engineer and Mobile Platform Lead with more than 10 years of experience building consumer mobile products at scale. My expertise spans iOS architecture, SDK design, design systems, real-time streaming, observability, release engineering, and engineering leadership.

I have led mobile platform initiatives supporting large product organizations, including Procore's mobile components and design system used by 18 product teams across more than 150 countries. I have managed cross-functional engineering and QA teams, driven roadmaps, resolved dependencies, and established scalable governance for SDKs, feature flags, and releases.

My experience includes high-concurrency OTT and interactive live-event systems at SonyLIV, where I built reusable real-time communication layers using MQTT and LightStreamer. I have delivered mobile experiences serving millions of concurrent users while maintaining strong crash-free-session and release-quality metrics.

I specialize in Swift, UIKit, SwiftUI, Swift concurrency, Kotlin Multiplatform, Clean Architecture, VIPER, mobile performance optimization, and observability. I build systems that turn production telemetry into actionable engineering workflows through tools such as Honeycomb, Crashlytics, LaunchDarkly, CI/CD automation, and AI-assisted triage.

I am currently the founder and lead engineer of Divya Yatri, a bilingual pilgrimage-planning platform. I independently own product strategy, design, content, engineering, search optimization, and travel-service operations for the platform.

Skills

38 capabilities

Tech stack & tools

Working toolkit

Analytics

Application Hosting

Collaboration

Design

Development

Languages & Frameworks

Experience

Career history

Founder and Lead Engineer Divya Yatri Private Limited

Founded and independently built Divya Yatri, a family-focused pilgrimage discovery and planning platform for India. Own product strategy, UX, content, engineering, launch, and operations end to end.

Delivered 260 detailed temple guides with English and Hindi localization, producing more than 520 indexed pages with bilingual URLs, sitemap support, and Open Graph sharing. Built installable mobile-first devotional utilities including festival guides, an aarti collection, and a Hindu calendar.

Expanded the platform into bookable travel services by launching a chauffeur-driven cab booking service in Lucknow for airport transfers, sightseeing, and outstation travel, including fleet listings and self-service booking management.

Staff Software Engineer and Mobile Platform Lead Procore Technologies

Led a team of 8, comprising 6 iOS/Android engineers and 2 QA professionals, delivering 100% on-time releases across 8 consecutive sprints. Owned quarterly roadmaps, backlog refinement, and cross-team dependency resolution for platform components used by 18 product teams.

Led the mobile Design System across iOS and Android, standardizing components, theming, and accessibility patterns. Architected a cross-platform Telemetry SDK that streamed crash rates, launch time, frame drops, and ANRs to Honeycomb, reducing regression detection time by approximately 70%.

Built an autonomous AI-assisted triage pipeline using Cursor AI, App Store Connect, Play Console, Crashlytics, and Honeycomb data. Improved telemetry controls, feature-flag lifecycle governance, Kotlin Multiplatform analytics, SDK promotion workflows, and CI/CD reliability.

Senior Software Developer Sony Pictures Networks India (SonyLIV)

Architected the KBC Interactive SDK for live-TV viewer participation at approximately 2 million concurrent users, synchronized to broadcast through MQTT. Reused the same design for Shark Tank India without modifications.

Designed a reusable LightStreamer real-time communication layer sustaining approximately 800,000 concurrent connections, with reconnection and graceful-degradation behavior. Led a cross-functional team of 12, including 9 iOS engineers and 3 QA professionals, serving tens of millions of monthly active users.

Improved iOS cold-start time by approximately 18%, reduced the Hybrid SDK bundle by 12 MB, drove an MVVM-to-VIPER migration across around 40 modules, and managed approximately 24 zero-incident App Store releases.

Senior Associate Lead Nagarro

Led architecture reviews for six enterprise iOS projects and established scalable design patterns for mobile development.

Mentored five senior engineers on modular architecture and engineering practices, increasing design-review pass rates by approximately 40%.

Senior Software Developer App Street Software

Owned critical iOS modules end to end across 10 consumer application releases. Delivered more than 20 production features while maintaining a 99.4% crash-free rate.

Built features using UIKit, Core Location, HealthKit, and WatchKit for consumer mobile applications.

iOS Developer 3Embed Software Technologies

Built and shipped six consumer iOS applications serving more than 100,000 users across on-demand and marketplace verticals.

Implemented Stripe payments, FCM push notifications, MQTT real-time messaging, and Core Data offline-first workflows.

.NET Developer Mentor Infotech Solutions

Started professional software engineering career building .NET applications with REST API and Firebase integrations.

Transitioned into iOS engineering after completing the PG-DAC Advanced Computing program at CDAC Pune in 2016.

Education

Learning history

CDAC Pune

PG-DAC, Advanced Computing, Advanced Computing

Completed the Post Graduate Diploma in Advanced Computing program.

Gautam Buddha University

B.Tech, Computer Science Engineering

Completed a Bachelor of Technology in Computer Science Engineering.

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