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Sivakumar Portfolio
Case Study · Mobile Commerce · Founding Team · 2013 to 2019

TinySurprise
E-Commerce Gifting

Started as a product intern building mobile apps and grew into an APM role over six years at the founding team. Built India's personalised gifting platform from zero. Along the way: a Walmart-inspired design pattern that killed conversion, a routing logic problem that looked like a logistics failure, and a redesign that unlocked 3x YoY growth.

Founding TeamMobile Commerce4.2 ★ · 50K+ MAU
Role
Product Intern (mobile apps) → Product Engineer → Associate PM
Rating
4.2 stars · Google Play
Peak
50K+ MAU · 45% YoY growth
50K+
Monthly active users
YoY seasonal order growth
90%
24-hour fulfilment
from 55% baseline
+60%
retention improvement
post redesign
4.2 ★
Play Store rating
The Design That Killed Conversion

The original design followed a pattern inspired by Walmart's less-cluttered 2009 UI experiment to minimal product display, heavy on category navigation, slow to surface recommendations. Intent: reduce overwhelm. Result: users couldn't find what they wanted and didn't convert.

The first version also put the 3-question onboarding (occasion → recipient → location) as a gate before any browsing to asking for context before giving value. Users installed, reached the recommendation screen, and dropped.

What the data showed: Drop rates were concentrated on the recommendation screen, not at install. Users were completing onboarding but not converting on recommendations. The flow asked for too much too early. In an earlier experiment with a simplified homepage to similar to Walmart's reduced-SKU experiment to we also saw 30 orders in 3 months: strong press, weak conversion. The pattern was clear: simplicity without relevance doesn't convert.

Original Design to Lukewarm Reception
v1  to  original design

v1 to original design

v1  to  category flow

v1 to category flow

v1  to  recommendation screen

v1 to recommendation screen

Redesign to Browse-first, Filter-second

The fix: Flip the information architecture. Home screen leads with curated gift recommendations. The 3-question flow becomes a personalisation filter you invoke when you want precision to not a mandatory gate. Visuals-first, price-prominent, occasion-tagged browsing.

v2  to  redesigned home

v2 to redesigned home

v2  to  gift browse

v2 to gift browse

v2  to  occasion filter

v2 to occasion filter

v2  to  personalised results

v2 to personalised results

The Fulfilment Problem to Not a Logistics Issue

Standard hypothesis: logistics partners weren't reliable. My hypothesis after mapping delivery failures by pin code and time-of-day: the routing logic was sending orders to the wrong partner for the wrong zone at the wrong time. Urban pin codes have wildly different lead times depending on traffic corridors and time-of-day to we were treating them as identical. The fix: time-slot-based routing system, lead time logic by zone. 24-hour fulfilment went from 55% to 90% without changing a single logistics partner.

Results

The lesson: When a metric looks like an external dependency problem, map it before assuming. The routing logic was the problem. The logistics partners were doing exactly what the system told them to do.