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Mahmoud Qassem

@mahmoudqassem

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Junior Java backend developer focused on building robust, secure RESTful services.

Egypt

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What I'm looking for

I seek backend roles focused on building secure, scalable APIs with collaborative Agile teams, opportunities to learn, mentor, and work with cloud storage and databases.

I am a junior Java backend developer with a strong foundation in data structures, algorithms, and backend engineering using Java, Spring Boot, and SQL/NoSQL databases. I have built and optimized Spring Boot services, implemented JWT/Spring Security, and designed production-style document management features integrating MongoDB, PostgreSQL, and AWS S3.

I contributed to Agile teams, raised code reliability with unit testing (JUnit) and SOLID design, and delivered measurable performance improvements like a 30% API response-time gain. I am a quick learner, collaborative mentor, competitive programmer, and motivated to grow in backend engineering roles.

Experience

Work history, roles, and key accomplishments

Full Stack Java Intern

Atos

Aug 2025 - Nov 2025 (3 months)

Built and optimized Spring Boot services for an Angular application, improving API response times by 30% and implementing Spring Security with JWT; developed document management modules supporting file storage, metadata, and versioning across MongoDB, PostgreSQL, and AWS S3.

Java Spring Boot Spring Security JWT MongoDB PostgreSQL Junit RESTful API Design S3

Program Instructor

iSchool

Oct 2024 - Nov 2024 (1 month)

Delivered hands-on workshops for grades 4–6 that improved students' IT and communication skills and increased classroom engagement through structured activities.

Instruction Curriculum Design Classroom Management Communication Skills Mentorship

Mentor and Instructor

IEEE & ICPC Minya

Sep 2021 - Nov 2023 (2 years 2 months)

Trained and guided students in algorithms and competitive programming, preparing multiple teams for regional and national contests and improving problem-solving performance.

Algorithms Competitive Programming Problem Solving Technical Training Mentorship

Education

Degrees, certifications, and relevant coursework

Minya University, Faculty of Engineering

Bachelor of Science, Computer and Systems Engineering

2019 - 2024

Grade: Excellent with Honors (3.6)

Activities and societies: Graduation project (Excellent); involvement in IEEE & ICPC Minya communities mentoring and competitive programming activities.

Completed a B.Sc. in Computer and Systems Engineering with Excellent with Honors (GPA 3.6) and an excellent graduation project.