Experience

Tech Lead
Smartbroker 12/2023 – Present Berlin
  • Led technical direction and ownership for the Core domain across 4 Platforms iOS, Android, Web, and Backend teams.
  • Delivered platform-wide security and quality improvements, introducing DPoP authentication and AI-era development guardrails that reduced production defects by 92% and infrastructure costs by 20%.
  • Improved Core platform scalability and delivery speed through architecture modernization and Mobile DevOps adoption, increasing capacity by 4x and reducing merge cycle time by 40%.
Mobile Team Lead
Smartbroker 04/2022 – 12/2023 Berlin
  • Within the first 8 months, designed and launched a modular mobile platform architecture adopted across both iOS and Android.
  • Established the team’s technical foundations, delivery practices, and quality standards with no prior mobile infrastructure in place ‐ setting up 6 Mac-minis on-premise led to daily delivery to QA.
  • Cross-team feature delivery was blocked by missing shared Core domain tooling; led the Core domain and built SDKs adopted by 4 internal teams, directly accelerating delivery velocity.
Lead Mobile Engineer
NA-KD 07/2021 – 03/2022 Remote
  • Established NA-KD's mobile engineering function from the ground up, growing the team to 3 engineers, leading the modularization of a monolithic codebase into 13 modules, and doubling release frequency from bi-weekly to weekly without disrupting delivery.
Mobile Team Lead
Verimi 01/2020 – 06/2021 Berlin
  • Legacy mobile app generating 4 production incidents/month; led full re-architecture across iOS and Android ‐ dropping incidents to fewer than 1 every 2 months.
  • Systematically eliminated memory leaks and applied lazy-loading optimizations ‐ cutting crash rate by 88% and improving cold-launch time.
Senior Developer
Zalando SE 01/2019 – 12/2019 Berlin
  • Built the mobile foundation for Zalando's Merchant Operations 2020 initiative, enabling the expansion of merchant-facing services that supported significant business growth.
  • Engineered a custom Go CLI to migrate 40 TB of merchant data ‐ completing the Merchant Platform transition with zero downtime.
  • Navigated cross-functional dependencies across 6 internal teams to ship core iOS features ‐ streamlining workflows that directly impacted seller operations.
  • integrated Keycloak authentication and built PDF services in Scala Play and Spring Boot ‐ reducing on-call incidents from weekly to once every 3 months.
iOS Developer
Zalando SE 01/2016 – 12/2018 Berlin
  • Developed Movmnt iOS app and contributed to launching Zalando Beauty in 2 months;
iOS Developer
Shopbox ApS 02/2015 – 12/2015 Copenhagen
  • Delivered iOS POS app in 3 months (vs 6-month estimate) and grew the customer base from 2 to 200 merchants in 10 months through direct customer engagement.
Various Engineering Roles
Startups & Agencies 2005 – 2014 Cairo & Remote
  • Delivered mobile, web, and backend systems for clients including Pfizer, telecom operators, and an enterprise hospital ‐ mentoring 2 junior developers and shipping products across diverse technical domains.

Summary

Lead Engineer & Tech Lead with 20~ years across mobile and backend. Work best where product complexity is high, reliability matters, and teams need clear technical direction. Strong focus on iOS architecture, platform evolution, and helping engineers do their best work. Applying agentic engineering to streamline developer workflows and accelerate the software delivery lifecycle. Pioneered DPoP-based authentication at scale, eliminating token replay vulnerabilities without UX regression. Background spans fintech, ecommerce, SaaS, and startups. Based in Berlin with German work rights, open to Principal iOS Engineer and Tech Lead roles across Europe.

Education

BSc. Computer Science
Cairo University
Egypt

Skills

Swift SwiftUI UIKit KMP Agentic engineering CI/CD & automation Fastlane Mobile DevOps MVVM & VIPER Clean Architecture TDD Technical leadership Mentoring & hiring Ruby Bash macOS & Ubuntu REST & GraphQL SDLC

Languages

  • Arabic (Native)
  • English (C1)
  • German (B1)

Citizenships

  • Egyptian
  • German

Projects