Senior iOS Engineer & Technical Lead with 5+ years of experience shipping 9+ apps and architecting scalable enterprise SDKs and high-performance consumer applications. Specializing in concurrent systems, offline-first architecture, and complex third-party integrations. Proven technical leader who optimized core engines to reduce data usage by 35% and server costs by 20% through payload and caching optimizations, while guiding distributed teams to deliver 99.9% crash-free releases.

Kirlos Yousef

Senior iOS Engineer & Technical Lead with 5+ years of experience shipping 9+ apps and architecting scalable enterprise SDKs and high-performance consumer applications. Specializing in concurrent systems, offline-first architecture, and complex third-party integrations. Proven technical leader who optimized core engines to reduce data usage by 35% and server costs by 20% through payload and caching optimizations, while guiding distributed teams to deliver 99.9% crash-free releases.

Available to hire

Senior iOS Engineer & Technical Lead with 5+ years of experience shipping 9+ apps and architecting scalable enterprise SDKs and high-performance consumer applications. Specializing in concurrent systems, offline-first architecture, and complex third-party integrations. Proven technical leader who optimized core engines to reduce data usage by 35% and server costs by 20% through payload and caching optimizations, while guiding distributed teams to deliver 99.9% crash-free releases.

See more

Experience Level

Intermediate

Language

Amharic
Advanced

Work Experience

Senior iOS Engineer & Technical Lead at IoMob (The Internet of Mobility)
January 1, 2025 - Present
Led iOS architecture and roadmap, translating product goals into scalable iOS architecture. Built an iOS core SDK and high-performance mobile apps, collaborated with distributed teams to deliver 99.9% crash-free releases. Implemented automated CI pipelines and standardized code review processes.
iOS Engineer at IoMob - The Internet of Mobility
January 1, 2024 - January 1, 2025
Led delivery of an enterprise-grade iOS app for a Barcelona-based mobility platform; contributed to PCI-compliant payments integration with Stripe, reducing checkout times through optimized CI and pre-fetching.
iOS Engineer at IoMob - The Internet of Mobility
January 1, 2021 - January 1, 2024
Engineered the core iOS Mobility SDK used by Ford and Renault; implemented protocol-oriented architecture to normalize data from 10+ providers, reducing integration time to under 2 days. Launched BrightBike real-time bike-sharing with offline-first maps and local receipt generation to support low-connectivity environments.

Education

B.S. at University of Debrecen
January 1, 2017 - January 1, 2020

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Media & Entertainment, Transportation & Logistics

Experience Level

Intermediate

Hire a App Developer

We have the best app developer experts on Twine. Hire a app developer in Debrecen today.