Hi, Im Rizwan Riaz, a Computer Science expert with 5+ years of experience in OOP, DSA, Databases (SQL + NoSQL), and Operating Systems.
What I Can Help You With
- OOP: classes, inheritance, polymorphism, encapsulation
- DSA: arrays, linked lists, stacks/queues, trees, graphs, heaps, sorting/search, dynamic programming
- Databases: relational (MySQL, PostgreSQL) and NoSQL (MongoDB), data modeling, query optimization
- Operating Systems: processes, threads, scheduling, memory management, file systems, concurrency
- Code solutions, bug fixes, assignments, project guidance, exam prep
Why Choose Me
- Proven track record 5+ years experience with high client satisfaction
- Delivered dozens of projects and tutoring sessions in these areas
- Clear explanations, well-commented code, and timely delivery