Senior Android Engineer
Rahul Singh.
Platform Architecture & Performance.
15 years of engineering. 10+ years building Android platforms at scale — serving millions across creator commerce, healthcare, telecom, IoT, and fintech.
About Me
I'm a Senior Android Engineer with 15 years of software engineering experience, 10+ of which are focused exclusively on Android platform development.
At LTK, I owned the architecture of a creator-commerce Android app serving 40M+ monthly shoppers, delivering a high-performance video platform and achieving an 80% reduction in cold-start time.
Before LTK, I delivered production-grade Android systems for enterprise clients including Medtronic, AT&T, KeyBank, Milwaukee Tool, Motorola, and Tyco — across healthcare, telecom, fintech, and IoT domains.
I specialize in clean architecture, Jetpack Compose, performance optimization, and leading end-to-end platform initiatives in Agile teams.
Career Highlights
Skills
Languages
Android & Mobile
Architecture & Patterns
Networking & APIs
Databases
Testing
Tools
Analytics & Monitoring
Experience
Senior Software Engineer I – Android Platform
LTK
June 2022 – Feb 2026
Global creator-commerce platform — $5B+ annual retail sales, 40M+ monthly shoppers.
- ▸Video Platform (Daily Drops): Rewrote short-form video system with Jetpack Compose + ExoPlayer. 0 bugs UAT. Near-zero crashes.
- ▸Cold-Start Optimization: Reduced load time by 80% (8–10s → <1s) on Dynamic Landing Pages.
- ▸App Rating Recovery: Analyzed Play Store reviews via Python. Sustained 4.0+ rating for 11/12 months.
- ▸Creator Discovery: Swipe-based matchmaking with animated transitions in Jetpack Compose + MVVM.
- ▸Feature Flag Modernization: Removed ~70% of obsolete flags. Improved release reliability across teams.
Senior Software Engineer – Android
Client Engagements
2015 – 2022
Enterprise Android apps for Medtronic, AT&T, Milwaukee Tool, Motorola, Tyco, KeyBank, R/GA.
- ▸Medtronic (MyCareLink Heart): BLE-enabled remote patient monitoring in a regulated healthcare environment.
- ▸AT&T (ZenKey, FirstNet): Secure SSO and identity integration for large-scale telecom platforms.
- ▸Tyco (iStarService BLE): Sole Android engineer — built BLE device communication app from scratch.
- ▸KeyBank: Secure mobile banking features with high reliability requirements.
- ▸Milwaukee Tool (OneKey): Tool and inventory management platform with theft-prevention features.
Software Engineer – Banking & Financial Systems
Accenture — JPMorgan Chase / Bank of America
2011 – 2015
Large-scale payment & banking platforms including SEPA and SWIFT integrations.
04. What's Next?
Get In Touch
Open to senior Android engineering roles and platform architecture opportunities. Feel free to reach out — I'd love to connect.
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