Available to hire
I’m Zahra Zarei, a software engineer and mobile developer who loves turning ideas into scalable, high-performance apps with clean, intuitive user experiences. I specialize in Android (Kotlin, Java) and also work with iOS development, plus cross-platform frameworks like Flutter to share code across Android and iOS.
I’m currently studying Cyber Security at TAFE SA, which strengthens my approach to secure coding and data protection. I enjoy tackling complex challenges, integrating apps with IoT and cloud services, and collaborating with cross-functional teams to deliver meaningful, reliable, and user-friendly products.
Language
Javanese
Advanced
Work Experience
Software Developer (Freelance) at Self-employed / Freelance
September 1, 2024 - PresentDesigned and developed Android applications for clients, focusing on clean architecture (MVVM/MVI), Kotlin, and modern Android SDK components. Delivered cross-platform prototypes using Kotlin Multiplatform and Flutter to support both Android and iOS with shared codebases. Integrated APIs, cloud services, and third-party SDKs to enable secure data exchange, offline-first capability, and real-time features.
Senior Android Engineer (Remote) at Hichapp Limited
September 1, 2024 - October 14, 2025Led Android app development with a focus on clean architecture and performance. Boosted active users by 40% in 1-2 months through UX improvements, onboarding, and gamified features. Integrated image, text, and video polls with real-time interactions. Championed best practices, unit testing, and open-source integrations. Collaborated with design, product, and backend teams for seamless delivery. Mentored junior developers and nurtured a high-performing engineering culture.
Senior Software Engineer at Noxel GmbH
February 1, 2019 - October 14, 2025Modernised a food-tech platform by building scalable Android solutions using clean architecture. Improved performance and UX, contributing to a 20% increase in average order value. Optimised third-party integrations to reduce processing costs. Led app testing, optimisation, and delivery pipeline improvements. Collaborated with cross-functional teams to streamline development. Mentored junior developers and promoted continuous tech innovation.
Mobile Developer at TAPSI
June 1, 2017 - October 14, 2025Built and maintained high-performance, user-focused mobile apps for urban mobility. Led cross-team efforts to align features with market and user needs. Refactored legacy components, improving load times by 35% and reducing crashes. Streamlined team delivery using Agile practices and ensured code quality and timely releases through structured collaboration. Researched trends to implement innovative, competitive features.
Android Developer at Tookan Tech
March 1, 2016 - October 14, 2025Developed and optimised the Takhfifan Android app for a smooth, responsive user experience. Focused on user-centric design and performance across diverse deal categories. Boosted deal conversion rates by 25% through purchase flow optimisation and geotargeting. Collaborated with cross-functional teams to align features with business goals. Integrated third-party APIs and libraries for faster and scalable development.
Android Developer at Digikala
July 1, 2015 - October 14, 2025Built scalable, high-performance Android apps supporting millions of monthly users. Delivered new features through cross-functional collaboration with design, product, and backend teams. Improved checkout completion rate by 30% via payment flow optimisation and caching strategies. Wrote clean, testable code and set up CI pipelines for maintainability and faster delivery. Participated in code reviews and mentored peers to promote engineering best practices.
Junior Android Developer at SOIT
July 1, 2014 - October 14, 2025Developed a tablet-based inventory app focused on performance and operational reliability. Enhanced real-time data sync and UI design to boost usability in warehouse settings. Reduced inventory errors and improved audit speed through performance tuning and debugging. Led team code reviews and helped define consistent coding standards. Collaborated across teams to deliver features that improved client satisfaction.
PHP Developer at SOIT
September 1, 2013 - October 14, 2025Built scalable PHP modules to enhance CRM data handling and workflow automation. Translated business needs into technical solutions through cross-functional collaboration. Improved performance and stability via rigorous testing and secure API integrations. Streamlined project delivery using Git and best coding practices.
Software Developer at Freelance
September 1, 2024 - PresentDesigned and developed Android applications for clients, focusing on clean architecture (MVVM/MVI), Kotlin, and modern Android SDK components. Delivered cross-platform prototypes using Kotlin Multiplatform and Flutter to support both Android and iOS with shared codebases. Integrated APIs, cloud services, and third-party SDKs to enable secure data exchange, offline-first capability, and real-time features.
Senior Android Engineer (Remote) at Hichapp Limited
September 1, 2024 - October 14, 2025Led Android app development with a focus on clean architecture and performance. Boosted active users by 40% in 12 months through UX, onboarding, and gamified features. Integrated image, text, and video polls with real-time interactions. Championed best practices, unit testing, and open-source integrations. Collaborated with design, product, and backend teams for seamless delivery. Mentored junior developers and nurtured a high-performing engineering culture.
Senior Software Engineer at Noxel GmbH
February 1, 2019 - October 14, 2025Built scalable, maintainable Android solutions using clean architecture. Improved performance and UX, driving a 20% increase in average order value. Optimised third-party integrations to reduce processing costs. Led app testing, optimisation, and delivery pipeline improvements. Collaborated with cross-functional teams to streamline development. Mentored junior developers and promoted continuous tech innovation.
Mobile Developer at TAPSI
June 1, 2017 - October 14, 2025Driving seamless experiences in urban mobility (Ride-Hailing App). Built and maintained high-performance, user-focused mobile apps. Led cross-team efforts to align features with market and user needs. Refactored legacy components, improving load times by 35% and reducing crashes. Streamlined team delivery using Agile practices. Ensured code quality and timely releases through structured collaboration. Researched trends to implement innovative, competitive features.
Android Developer at Tookan Tech
March 1, 2016 - October 14, 2025Developed and optimised the Takhfifan Android app for a smooth, responsive user experience. Focused on user-centric design and app performance across diverse deal categories. Boosted deal conversion rates by 25% through purchase flow optimisation and geotargeting. Collaborated with cross-functional teams to align features with business goals. Integrated third-party APIs and libraries for faster and scalable development.
Android Developer at Digikala
July 1, 2015 - October 14, 2025Built scalable, high-performance Android apps supporting millions of monthly users. Delivered new features through cross-functional collaboration with design, product, and backend teams. Improved checkout completion rate by 30% via payment flow optimisation and caching strategies. Wrote clean, testable code and set up CI pipelines for maintainability and faster delivery. Participated in code reviews and mentored peers to promote engineering best practices.
Junior Android Developer at SOIT
July 1, 2014 - October 14, 2025Developed a tablet-based inventory app focused on performance and operational reliability. Enhanced real-time data sync and UI design to boost usability in warehouse settings. Reduced inventory errors and improved audit speed through performance tuning and debugging. Led team code reviews and helped define consistent coding standards. Collaborated across teams to deliver features that improved client satisfaction and engagement.
PHP Developer at SOIT
September 1, 2013 - October 14, 2025Built scalable PHP modules to enhance CRM data handling and workflow automation. Translated business needs into technical solutions through cross-functional collaboration. Improved performance and stability via rigorous testing and secure API integrations. Streamlined project delivery using Git and best coding practices.
Education
Bachelor of Software Engineering at Buali Sina University, Iran
January 1, 2005 - January 1, 2010Generative AI Nanodegree (Scholarship Program) at Udacity
December 1, 2024 - August 1, 2025Certificate IV in Cyber Security at TAFE, Adelaide
July 1, 2025 - October 14, 2025Bachelor of Software Engineering at Buali Sina University
January 1, 2005 - December 31, 2010Generative AI Nanodegree (Scholarship Program) at Udacity
December 1, 2024 - August 31, 2025Certificate IV in Cyber Security at TAFE SA
July 1, 2025 - October 14, 2025AWS She Builds Mentorship Program (Mentee) at AWS
September 1, 2025 - October 14, 2025Qualifications
Generative AI Nanodegree (Scholarship Program)
December 1, 2024 - August 1, 2025AWS She Builds Mentorship Program (Mentee)
September 1, 2025 - October 14, 2025Certificate IV in Cyber Security
July 1, 2025 - October 14, 2025Certificate IV in Cyber Security
July 1, 2025 - October 14, 2025AWS She Builds Mentorship Program (Mentee)
September 1, 2025 - October 14, 2025Generative AI Nanodegree (Scholarship Program)
December 1, 2024 - August 31, 2025Industry Experience
Software & Internet, Professional Services, Computers & Electronics
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