Freelancer profile translated to English.
Back to original languageAbout Hamza
Senior iOS Developer and Technical Lead with over 7 years of experience in building enterprise mobile solutions for international brands like Christian Dior. Proven experience in managing multidisciplinary teams of over 6 developers and delivering applications used by over 500,000 users in the luxury, telecommunications, and energy sectors.
Specialist in Swift 5, SwiftUI, GraphQL, and Clean Architecture, with strong expertise in performance optimization and Agile development. Recognized for driving up to 40% performance improvements and for the ability to transform complex business needs into reliable, scalable, and high-performing mobile applications.
French
Fluent
English
Fluent
Arabic
Native or bilingual
Can work on-site
Paris (up to 50km), Lyon (up to 10km), Marseille (up to 10km), Nantes (up to 10km), Strasbourg (up to 10km)
Experience
- Christian DiorSenior iOS Developer & Technical LeadLUXURY GOODSMay 2022 - Today (4 years and 1 month)Paris, FranceDiorStar - Global CRM Platform for Luxury Retail OperationsLed iOS development for an enterprise CRM platform deployed in over 200 international Dior boutiques, enabling sales advisors to manage high-value customer relationships and optimize luxury retail operations through innovative mobile technology solutions.
- Directed the migration to Clean Architecture serving over 200 global boutiques, reducing development time by 30% and enabling rapid feature deployment to support Dior's expansion into new markets.
- Spearheaded the SwiftUI modernization initiative that enhanced the user experience for luxury retail advisors, resulting in a 25% improvement in customer interaction efficiency and positive stakeholder feedback.
- Architected a real-time CRM/Clientelling POS system with dynamic customer segmentation, enabling personalized luxury shopping experiences and contributing to increased conversion rates.
- Optimized application performance through GraphQL/Apollo integration, achieving a 40% reduction in load times and improving advisor productivity during peak hours.
- Designed an intelligent push notification system that enhanced customer engagement strategies, supporting omnichannel marketing initiatives and Dior's customer retention goals.
- Built real-time analytical dashboards enabling data-driven business decisions, providing executives with insights into sales performance and customer behavior.
- Managed and mentored a cross-functional development team of 6 developers using Agile methodologies, ensuring consistent sprint deliveries and knowledge transfer across technical and business domains.
- 1TechSenior iOS DeveloperTECHApril 2021 - May 2022 (1 year and 1 month)Number2Go - International Virtual Phone Number Platform:Designed and developed a comprehensive iOS communication platform enabling global users to purchase and manage international virtual phone numbers, integrating Twilio's advanced capabilities to serve the telecommunications market with seamless cross-border communication solutions.
- Built an end-to-end communication platform featuring messaging, voice calls, and contact management, empowering users to establish a virtual presence in over 50 countries and supporting business expansion goals.
- Implemented advanced analytics integration with AppsFlyer, Amplitude, and Qonversion, providing the product team with user behavior insights that informed feature prioritization and increased user retention by 20%.
- Created a premium user experience with SwiftUI and custom animations that differentiated the product in the competitive telecommunications market, contributing to positive App Store ratings and user acquisition.
- Developed a robust internationalization system using the Crowdin SDK, enabling global market expansion and localization for over 15 languages, supporting the company's international growth strategy.
- Optimized App Store presence through a comprehensive ASO strategy and keyword optimization, improving organic discoverability and reducing customer acquisition costs for the marketing team.
- Architected real-time push notifications and messaging infrastructure that increased user engagement by 35% and supported customer success team retention initiatives.
Analytics & Growth:AppsFlyer, Amplitude, Qonversion, WonderPush, App Store Optimization, Acquisition - Proxym GroupiOS DeveloperSOFTWARE PUBLISHINGFebruary 2018 - May 2021 (3 years and 3 months)Sousse, TunisiaMulti-Industry iOS Applications - Enterprise & Consumer Solutions:Developed innovative iOS applications across the energy, telecommunications, electric mobility, and connected health sectors, delivering scalable solutions for enterprise clients and consumer markets while collaborating with cross-functional teams to translate complex business requirements into intuitive mobile experiences.
- DEWA Smart App: Delivered the official Dubai Electricity and Water Authority app with the AI assistant "Rammas" to over 500,000 active users, supporting Dubai's smart city initiatives and digital transformation goals.
- Wattsy Electric Mobility: Built a comprehensive charging station booking platform with integrated payment systems, supporting sustainable transportation infrastructure and contributing to the UAE's clean energy objectives.
- MyBackCoach Connected Health: Created an IoT integrated health monitoring app for Thuasne, enabling remote patient monitoring and supporting digital health transformation in the medical device industry.
- Salama Magazine AR Education: Developed an innovative augmented reality educational app for children featured at GITEX Technology Week 2019, showcasing cutting-edge mobile AR capabilities to an international tech audience.
- Architected complex enterprise integrations with IoT devices, payment gateways, and government systems, ensuring seamless data flow and compliance with regional regulatory requirements.
- Maintained exceptional App Store ratings across diverse industry verticals through user-centric design and rigorous quality assurance, contributing to positive client relationships and business development opportunities.
Recommendations
Be the first to recommend Hamza
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Software engineer, Computer and Information Sciences and Support ServicesHigher Institute of Applied Sciences and Technology of Sousse - ISSAT Sousse2019Software engineer , Computer and Information Sciences and Support Services
- Preparatory cycle (MPI), Computer ScienceHigher Institute of Applied Sciences and Technology of Sousse - ISSAT Sousse2015Preparatory cycle (MPI), Computer Science