Description

Senior Software Engineer and Independent Consultant with 12+ years of experience, including 9+ years at Amazon (Retail, Advertising, AWS S3). Specialized in Java, Kotlin, Spring Boot, and AWS, with deep expertise in scalable system design, cloud architecture, and data-intensive platforms (Spark, Hadoop). Proven track record in building greenfi eld systems, modernizing legacy platforms, and optimizing performance, cost, and reliability.

Industry field of expertise

Languages

English
Native or bilingual
Arabic
Native or bilingual
German
Conversational

Workplace preferences

Can work on-site

Berlin (up to 50km)

Freelance
Independent Software Engineering Consultant
DIGITAL AND IT
September 2025 - Today (10 months)
Berlin, Germany
• Delivering consulting and development services with a focus on backend architecture, cloud migration, and performance optimization. Applying 12+ years of experience (including 3.5 years at AWS S3) to help clients modernize legacy systems, build scalable microservices, and implement best practices in cloud-native engineering.

https://moworks.dev
Java Kotlin Apache Spark Spring boot Amazon Web Services
Amazon Web Services
Senior Software Development Engineer
DIGITAL AND IT
January 2022 - May 2025 (3 years and 4 months)
Berlin, Germany
• Worked in the AWS S3 org – Intelligent-Tiering storage class & S3 metering team.
• Served as subject matter expert and mentor for dataset builds on Spark and EMR, driving major improvements in reliability, speed, and cost efficiency.
• Reduced dataset build runtime and costs by orders of magnitude, enabling faster and more scalable data processing across the org.
• Designed and implemented new product features, including authoring detailed technical design documents and cross-team reviews.
Amazon Web Services Java Kotlin Typescript Apache Spark
Amazon Dev. Center Germany
Software Development Engineer
DIGITAL AND IT
July 2019 - January 2022 (2 years and 6 months)
Berlin, Germany
• Worked in the Amazon retail/e-commerce org – Gift Finder team
• Implemented new customer-facing features and enhanced the reliability, availability, and speed of the Gift Finder website.
• Developed machine learning automation for personalized gift suggestions and product recommendations.
• Led a complete redesign of the back-end and front-end systems of the internal admin management portal, improving usability and operational efficiency.
E-commerce Machine learning React.js API Spring boot

Check out Mohamad's experience

Be the first to recommend Mohamad

Help this freelancer shine by sharing your experience working together.

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

Baptiste Duhen

Fullstack developer

4.6

(4)

Amed Hamou

Senior Lead Developer

(2)

Audrey Champion

Web developer

4.3

(3)

Signup to reveal

B.Sc. Computer Engineering
The American University in Cairo
2014
Awarded with The U.S.-Middle East Partnership Initiative (MEPI) Tomorrow’s Leaders Scholarship & graduated with summa cum laude / mit Auszeichnung

Mohamad A.

Senior Software Engineering Consultant (Ex-Amazon)

About Mohamad

Experience

Recommendations

These freelancer profiles also match your criteria

Education

Skill set

Categories