WH
<Walid Hossain>
//senior ios software engineer
//about
senior ios engineer with 10+ years of experience building and scaling consumer and enterprise mobile applications for millions of users. expert in swift, swiftui, and modular architecture — with a proven track record of driving data-driven product improvements through a/b experimentation. i bridge technical execution with product strategy in high-scale, cross-functional environments.
//work experience
nov 2022 – present
Zalando SE
//ios engineer
Loyalty Platform · Berlin, Germany
- Engineered the Loyalty Banner, achieving a double-digit percentage increase in entry-point traffic.
- Authored Technical Solution Design docs, ensuring 99.9% crash-free sessions for new rollouts.
- Designed and executed multiple major A/B experiments; converted variants into core features.
- Partnered with Product & Analytics to align experiments with bi-weekly release cycles.
- Managed Feature Flag configurations for phased rollouts during high-traffic sales events.
jan 2022 – oct 2022
nSales A/S
//sr. ios engineer
Dhaka, Bangladesh
- Developed a SwiftUI-based retailer framework powering 30+ enterprise apps, reducing time-to-market ~40%.
- Refactored legacy modules to support latest iOS versions, significantly reducing technical debt.
jan 2017 – dec 2021
Brain Station 23
//lead engineer
Dhaka, Bangladesh
- Owned architecture of UCB Unet (Mobile Banking) & nVision Mobile (B2B Sales).
- Led a team of iOS engineers, standardizing review processes and reducing PR turnaround time.
2010 – 2016
Earlier Career
//mobile dev
Mobile Application Developer / Senior Software Engineer
- Delivered diverse consumer apps and games with a focus on UI/UX fluidity and cross-platform components.
//technical skills
iOS Core
Growth & Data
Practices
Tools
//connect