Computer Science Student
Computer Science Student
KAREEM
SULTAN
KAREEM SULTAN
Backend Engineer & Software Engineer
Backend Software Engineer and 3rd-year CS student at Ain Shams University (CGPA 3.6+). I build scalable RESTful APIs and full-stack systems — shipped Hirely (live job board) and Coachify (AI voice coach) to production.
Former Technical President leading 250+ engineers across 7 committees. Ranked 2nd / 130+ teams (Top 3%) in Ain Shams OS Competition. Featured on national TV for tech innovation.
National TV Interview
Technologies
Projects
A selection of technical projects showcasing skills in systems programming, mobile development, and full-stack applications.
Hirely — Job Board
Full-stack job board with 15+ REST endpoints, JWT auth & RBAC (job seeker / company / admin), rate limiting, bcrypt, and a React frontend with live search — deployed on Vercel + Render.
View Project
Coachify — AI Voice Coach
Real-time AI coaching app: voice conversation via Gemini 2.5 Flash audio streaming, screen sharing with automatic frame capture, and on-demand syntax-highlighted code generation.
View Project
Operating Systems
Built virtual memory, page-fault handling, LRU/Optimal/Clock replacement, kernel/user heap allocators, Priority Round Robin scheduler, and shared memory IPC — ranked 2nd / 130+ teams (Top 3%).
View Project
Full-Stack Shopping App
.NET REST API backend with Firebase Firestore; BLoC state management; Google Sign-In, cart, orders, real-time stock tracking, dark mode, and multi-language support.
View Project
Gym Management System
Full gym & padel club management system: user/staff management, scheduling, subscriptions, workout tracking, analytics — optimised with Hash Maps & Priority Queues.
View Project
StudyOS — Student Platform
Modular student productivity platform: courses, notes, habits, reminders & tasks in one centralized academic OS. Clean layered RESTful API architecture built for scale.
View ProjectExperience
Professional experience in software development, technical leadership, and education.
01
01
Zedny Inc
Product Owner Intern
12/2025 - 02/2026 | Mokattam, Cairo
Worked on site daily, collaborating with developers, designers, and QA to deliver software features.
- Authored PRDs with 20+ acceptance criteria per feature
- Managed 40+ Jira backlog tasks across sprints
- Aligned engineering, design & QA through Agile ceremonies
02
02
Support
Flutter Instructor
11/2024 - 12/2025 | Cairo, EG
Authored and delivered an advanced Flutter curriculum (BLoC, REST APIs, UI/UX) to top engineering students.
- Designed & delivered curriculum to 100+ engineering students
- Won 1st Place — Ain Shams Flutter Competition
- Mentored students into technical leads & peer instructors
03
03
RoboTech
Technical President
10/2024 - 10/2025 | Cairo
Directed 7 committees (AI/ML, IoT), building a pipeline that turned students into national competition winners.
- 3× 1st Place — Al-Azhar National Engineering Competitions
- Led 7 committees (AI/ML, IoT, CV) with 250+ members
- Featured in national TV interview on tech innovation
Technical Skills
A comprehensive skill set built through university coursework, personal projects, and real-world experience.
Mobile Development
Cross-platform apps with Flutter & Dart: BLoC state management, Firebase, Google Sign-In, real-time sync, dark mode, multi-language — shipped to production.
IoT & Embedded
Arduino, ESP8266/ESP32, Computer Vision (OpenCV), sensor networks — built and deployed real IoT systems and led an ASU university IoT competition.
Backend Services
RESTful APIs with Node.js, Express & .NET: JWT auth, RBAC, rate limiting, bcrypt, PostgreSQL, MongoDB — deployed on Vercel + Render.
Systems Programming
C/C++ — OS kernel, virtual memory, page replacement (LRU/Optimal/Clock), heap allocators, Priority RR scheduler. Ranked 2nd / 130+ teams.
Problem Solving
Competitive programming: algorithms, data structures, dynamic programming, graph theory, and bit manipulation — consistent contest performer.
Technical Leadership
Led 250+ engineers across 7 committees. Mentored 100+ students. 3× national 1st place. Featured on national TV. Agile sprint delivery.