Majid Hassan

S

Senior iOS Engineer, Klarna - UIKit · Core Data · Combine

Klarna
Madrid, Spain · CET (UTC+1)
9+ years experience
IE Business School
English, Spanish
Messaging unavailable

Overview

Based in Madrid. I work on iOS apps at Klarna. Grew the iOS team from 4 to 16 engineers. Amateur photographer; mostly street and food.

Good reasons to reach out
  • Speaking or podcast invitations
  • Second opinions on Combine decisions
Please don't message about
  • Unpaid work or spec projects
  • Requests to fix your code for free

Prefers short, specific messages

Skills
UIKitCore DataCombineXCTest

Experience

  1. Senior iOS Engineer
    Oct 2023 - Present
    Klarna · 3 yr · Full-time · Madrid, Spain
    • Mentored 14 engineers through their first promotion.
    • Rebuilt onboarding in SwiftUI and lifted day-one retention 3%.
    • Shipped 24 launches on the iOS team without a rollback.
  2. iOS Engineer
    Nov 2021 - Oct 2023
    LVMH · 1 yr 11 mo · Full-time · Madrid, Spain
    • Shipped a rewrite that took build times from 30 minutes to under 6.
    • Rebuilt onboarding in SwiftUI and lifted day-one retention 3%.
  3. iOS Engineer
    Oct 2019 - Nov 2021
    Celonis · 2 yr 1 mo · Contract · Madrid, Spain
    • Moved 87% of iOS traffic off a legacy monolith without a customer-facing incident.
    • Shipped 27 launches on the iOS team without a rollback.
  4. iOS Engineer
    Oct 2017 - Oct 2019
    Maersk · 2 yr · Full-time · Madrid, Spain
    • Moved 84% of iOS traffic off a legacy monolith without a customer-facing incident.

References

No references yet.

Education

  1. IE Business School
    MBA, Business Administration
    2016 - 2018
  2. École Polytechnique
    Ingénieur, Electronics and Communication
    2012 - 2016

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