Hafiz Zainal

S

Senior Engineering Manager at Mercari · UIKit, Combine

Mercari
Singapore · SGT (UTC+8)
12+ years experience
Waseda University
English, Mandarin
Open to work
Messaging unavailable

Overview

I lead iOS apps at Mercari in Singapore. Reduced cloud spend on iOS by 19% in two quarters. Before that: ANZ and Samsung Electronics. Learning woodworking.

Good reasons to reach out
  • Roles in iOS apps
  • Second opinions on Swift decisions
Please don't message about
  • Crypto token projects
  • Agency or outsourcing pitches

Replies between meetings, usually same day

Skills
CombineUIKitCore DataSwift
Open to workLooking for a role
closes in 3 months

Open to iOS Engineer roles at seed wealth management companies

Target roles
IOS Engineer
Level
Mid
Industries
Climate tech, B2B SaaS
Work mode
On-site
Available
90 days notice
Work authorization
Open to relocating
What I'm looking for
Early-stage company (Series A) where iOS apps is core to the product.
Not interested in
Contract-only roles

16 years in iOS apps. Strongest at Core Data and Combine. Available immediately.

Singaporecore dataswiftcombine
Open

Experience

  1. Senior Engineering Manager
    Jun 2023 - Present
    Mercari · 3 yr 4 mo · Full-time · Singapore
    • Moved 84% of iOS traffic off a legacy monolith without a customer-facing incident.
    • Wrote the Core Data service that now handles 22 million requests a day.
    • Built the experimentation framework 20 product teams use to ship changes safely.
  2. Engineering Manager
    Sep 2021 - Jun 2023
    ANZ · 1 yr 9 mo · Contract · Singapore
    • Grew the iOS team from 5 to 19 engineers.
    • Reduced cloud spend on iOS by 22% in two quarters.
  3. Engineering Manager
    Mar 2018 - Sep 2021
    Samsung Electronics · 3 yr 6 mo · Full-time · Singapore
    • Grew the iOS team from 3 to 16 engineers.
    • Built the experimentation framework 20 product teams use to ship changes safely.
  4. Engineering Manager
    Apr 2016 - Feb 2018
    Lazada · 1 yr 10 mo · Full-time · Singapore
    • Rebuilt onboarding in SwiftUI and lifted day-one retention 9%.
    • Wrote the Core Data service that now handles 8 million requests a day.
  5. iOS Engineer
    Feb 2015 - Apr 2016
    SEEK · 1 yr 2 mo · Full-time · Singapore
    • Shipped 28 launches on the iOS team without a rollback.

References

No references yet.

Education

  1. Waseda University
    BA, Information Technology
    2005 - 2009

Details

Compensation expectations
What they are targeting for their next role.
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Direct contact details
Direct email and a scheduling link.
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