I am an Android-focused software engineer with 7 years of experience, specializing in payment processing and POS solutions. I design and build robust Android applications using Java and Kotlin, and I have hands-on experience with payment protocols like ISO8583 and EMV, ensuring secure and compliant transactions. Currently, I lead Android development teams responsible for delivering high-performance mobile experiences handling millions of users. I enjoy solving technical challenges, mentoring engineers, and collaborating across teams to drive feature delivery and platform reliability.

Kareem Aridah

I am an Android-focused software engineer with 7 years of experience, specializing in payment processing and POS solutions. I design and build robust Android applications using Java and Kotlin, and I have hands-on experience with payment protocols like ISO8583 and EMV, ensuring secure and compliant transactions. Currently, I lead Android development teams responsible for delivering high-performance mobile experiences handling millions of users. I enjoy solving technical challenges, mentoring engineers, and collaborating across teams to drive feature delivery and platform reliability.

Available to hire

I am an Android-focused software engineer with 7 years of experience, specializing in payment processing and POS solutions. I design and build robust Android applications using Java and Kotlin, and I have hands-on experience with payment protocols like ISO8583 and EMV, ensuring secure and compliant transactions.

Currently, I lead Android development teams responsible for delivering high-performance mobile experiences handling millions of users. I enjoy solving technical challenges, mentoring engineers, and collaborating across teams to drive feature delivery and platform reliability.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate

Language

English
Fluent
Arabic
Fluent

Work Experience

Android Development TeamLead at Du
January 1, 2025 - Present
Lead the Android development team for the du mobile applications ensuring optimal performance for millions of users. Oversaw implementation of new features and managed technical challenges. Technologies used include Java, Kotlin, React Native, Google Pay, and Samsung Pay.
POS Mobile Development TeamLead at NeoLeap under Al-Rajhi Bank
December 31, 2024 - August 7, 2025
Developed POS infrastructure for Al-Rajhi Bank on multiple terminals such as PAX, Urovo, and Newland. Integrated and certified payment solutions with MADA network on both Socket & XML-NEXO level. Technologies used include Java, ISO8583, EMV, Socket Programming, ADVT, CDET, and NEXO.
E-Payment Front & End Development TeamLead at Etisalat (e&)
June 30, 2023 - August 7, 2025
Developed online gateways and POS payment applications on Sunmi and PAX devices for Etisalat's new business 'Super Pay'. Managed integration and certification with Bank Misr, and contributed to the creation of a super app featuring multiple services. Technologies used include Kotlin, Flutter, Java, ISO8583, EMV, Socket Programming, ADVT, and CDET.
Android Developer at Yallasolutions
December 1, 2018 - January 1, 2022
Create multiple applications for startups, corporates and governments that are serving millions of customers. Releasing and supporting tens of applications.
Android Development TeamLead at du
January 1, 2025 - Present
Lead the Android development team for the du mobile applications. Ensure optimal performance for millions of users. Oversee the implementation of new features and manage technical challenges. Technologies used: Java, Kotlin, React Native, Google Pay, Samsung Pay.
POS Mobile Development TeamLead at NeoLeap (under Al-Rajhi Bank)
December 1, 2024 - September 25, 2025
Developing POS infrastructure for Al-Rajhi bank on multiple terminals such as PAX, Urovo and Newland. Integrating and certifying with MADA network on both Socket & XML-NEXO level.
E-Payment Front & End Development TeamLead at Etisalat (e&)
June 1, 2023 - September 25, 2025
Developing both online gateways and POS payment applications on both Sunmi & PAX devices for Etisalat's new business (Super Pay) as well as integration and certification with Bank Misr. Creating Etisalat mobile platforms to create a super app that includes different services.
Android Developer at Hallasolutions
January 1, 2022 - September 25, 2025
Create multiple applications for startups, corporates and governments that are serving millions of customers. Releasing and supporting tens of applications.
Android Development Team Lead at du
January 1, 2025 - Present
Lead the Android development team for the du mobile applications, ensuring optimal performance for millions of users. Oversee the implementation of new features and manage technical challenges. Technologies used: Java, Kotlin, React Native, Google Pay, Samsung Pay.
POS Mobile Development Team Lead at NeoLeap (under Al-Rajhi Bank)
December 1, 2024 - September 25, 2025
Developing POS infrastructure for Al-Rajhi bank on multiple terminals such as PAX, Urovo and Newland. Integrating and certifying with the MADA network on both Socket & XML-NEXO level.
E-Payment Front & End development Team Lead at Etisalat (e&)
June 1, 2023 - September 25, 2025
Developed online gateways and POS payment applications on Sunmi & PAX devices for Etisalat's new business (Super Pay) as well as integration and certification with Misr Bank. Creating Etisalat mobile platforms to build a super app with multiple services.
Android Developer at hallasolutions
January 1, 2022 - September 25, 2025
Created multiple applications for startups, corporates and governments serving millions of customers. Released and supported tens of applications.

Education

Bachelor of Engineering at The German University in Cairo
July 1, 2013 - July 31, 2018
Bachelor of Engineering at The German University in Cairo
July 1, 2013 - July 1, 2018
Bachelor of Engineering at The German University in Cairo
July 1, 2013 - July 1, 2018
Bachelor of Engineering at The German University in Cairo
July 1, 2013 - July 1, 2018
Bachelor of Engineering at The German University in Cairo
July 1, 2013 - July 1, 2018
Bachelor of Engineering at The German University in Cairo
July 1, 2013 - July 1, 2018
Bachelor of Engineering at The German University in Cairo
July 1, 2013 - July 1, 2018
Bachelor of Engineering at The German University in Cairo
July 1, 2013 - July 1, 2018
Bachelor of Engineering in Mechatronics at The German University in Cairo
July 1, 2013 - July 1, 2018

Qualifications

Add your qualifications or awards here.

Industry Experience

Financial Services, Telecommunications, Software & Internet, Government, Professional Services, Media & Entertainment, Other, Retail, Computers & Electronics