Staff Software Engineer

Shangeeth Sivan

Software Engineer by Profession - Problem Solver by Heart.

Kotlin,AI,Agents,Communities,Chaos.

Building systems. Building people.
Making Chennai unfairly ambitious.

Impact

Mobile Architecture & Scalability

Designed resilient Android architecture for high-traffic scenarios, improving stability, maintainability, and shipping speed.

Kotlin Multiplatform Adoption

Enabled practical KMP adoption paths to reduce repeated platform effort and align teams on shared business logic.

Experience

9+ years building mobile systems & products at scale.

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Current Role

Staff Software Engineer — Android

Poshmark · Full-time

Jul 2019 – Present · 7 yrs 2 mos

Chennai, India · Hybrid

Leading the Android engineering team at Poshmark, delivering mobile commerce experiences for over 80 million registered users and 50M+ app downloads. Directing mobile architecture, performance optimization, and cross-functional engineering initiatives across 6 progressive advancements.

Architected critical systems including live streaming auction capabilities (Posh Shows), global international expansion payment gateways (Cards, GPay), deep-link processing modernization, and CI/CD developer velocity improvements.

Android Architecture Technical Leadership Kotlin & KMP Posh Shows Live Auctions Payments & Scalability Team Mentorship

Impact

Mobile Architecture & Scalability

Designed resilient Android architecture for high-traffic scenarios, improving stability, maintainability, and shipping speed.

Kotlin Multiplatform Adoption

Enabled practical KMP adoption paths to reduce repeated platform effort and align teams on shared business logic.

Topmate

Book a call for mentorship, career guidance, architecture reviews, and agentic AI discussions.

I believe in building systems that scale, communities that grow, and people who think deeply.