Portfolio — 履歴書
モスタファ・マフムード — モバイルアプリエンジニア
High Performance Systems & Elegant Mobile Ecosystems.
Dedicated Software Engineer specialized in Flutter, Dart, Go (Gin), Rust, and Kotlin (Spring Boot / Android native). Crafting high performance, concurrent, and scalable solutions with a focus on technical excellence and user experience.
What I
Do.
Four focused offers. Each one ends with a concrete deliverable and docs, not slides.
Mobile Apps
Flutter apps with native Kotlin bridges when needed, clean architecture and store-ready builds.
Backend Systems
Backends with Go (Gin) or Kotlin (Spring Boot): REST APIs, auth, SQL & NoSQL data, caching, and Docker deploys.
Packages & Perf
Dart/Go/Rust helpers with bench scripts and clear limits documented.
Mentoring
Flutter roadmaps and code review for student teams.
Shipped
Work.
Not only GitHub libraries. Apps with store constraints and backend APIs with measured behavior. Private work is marked as private-demo.
Tadamon
Scan a product, get a clear on-device answer.
Problem — Shoppers needed a fast check without uploading photos.
Role — Flutter dev — Objectbox + Firestore sync, ML Kit scanning
Lothga Tablet
Kids tablet shell with guarded content.
Problem — Private client app, not on GitHub. Needed one shell for many games plus parental controls.
Role — Flutter dev — shell, audio, local DB
GDGoC Benha API
Events, attendance, and roles API.
Problem — Community app needed events, attendance, and roles without Firebase lock-in.
Role — Backend — Gin API, Postgres, Docker
GoPix Service
Image pipeline behind the GoPix CLI.
Problem — Batch conversion needed checksums and parallel workers with clear errors.
Role — Go dev — workers, formats, CLI
Motivational Quotes
Shake the phone, get a quote with native feel.
Problem — Needed real sensor-driven interaction, not just a button.
Role — Flutter + Kotlin — platform channels, accelerometer
Move App
Browse movies with cached, smooth lists.
Problem — Movie browsing needed caching, smooth images, and crash reports.
Role — Flutter dev — Hive cache, Dio, Sentry
Code
Libraries.
Packages with bench scripts and documented limits. Numbers live in each repo, not in headlines.
Quantum-Crypto
Post-quantum crypto suite for Flutter: NIST ML-KEM (FIPS 203) and ML-DSA (FIPS 204) over a Rust core. Bench numbers in the repo.
Waffle-DB
Local vector database for Flutter: Rust + HNSW indexing, 1536+ dimension embeddings with KNN search. Bench numbers in the repo.
Flutter-Dicom
DICOM parsing and medical image rendering for Flutter, with a Rust core and GPU shaders. Benchmarks are linked in the repo.
Network-Reachability
Network monitoring with multi-target probing and DNS resolution via a native core. Usage and limits are documented in the repo.
FP-Growth
FP-Growth frequent-pattern mining. The 1M-transaction run (~1.46s) is the repo bench setup, not a general guarantee.
Radix_Plus
In-place Radix Sort implementation for Dart and Flutter, providing significant speed improvements over standard sorting for number lists.
Yaru.dart
Type annotations, deprecation cleanup, and dependency upgrades for pub.dev compatibility.
Toastification
Cut unused dependencies to shrink APK/AAB bundle sizes.
Musicpod
Full Arabic localization with RTL layout support, zero LTR regressions.
Tools of
The Trade.
No buzzword bingo. Every item below is used in the work you just scrolled past — or the proof coming next.
Mobile
モバイル- Flutter
- Dart
- Kotlin
- Android Native
- BLoC
- Objectbox
- Hive
Backend
バックエンド- Go
- Gin
- Spring Boot
- REST
- JWT
- Postgres
- SQLite
- Docker
Native Core
コア- Rust
- FFI
- GPU Shaders
- ML Kit
- Platform Channels
Tooling
道具- Git
- Linux
- Docker
- CI/CD
- Sentry
- Dio
Daily
Drivers.
The tools behind the work above — write, ship, observe, and what is being explored next.
Write
書く- Flutter
- Dart
- Kotlin
- Go
- Rust
Ship
出荷- Git
- Linux
- Docker
- CI/CD
Observe
観測- Sentry
- Bench scripts
- Dio
- JWT
Exploring
探求- ML-KEM / ML-DSA
- HNSW search
- GPU shaders
Professional
Experience.
Leading the Flutter track: roadmap, workshops, and code review for student teams.
Built the 'LothgaTablet' app shell: core structure, audio, and local data.
Focusing on Software Engineering, Algorithms, and AI.
The
Path.
Every step below is documented somewhere above — experience, work, or credentials.
- 2022
Started CS
Began Computer Science at Benha University — software engineering, algorithms, AI.
- 2024
First client app
Built the LothgaTablet shell: core structure, audio layer, and local database.
- 2024
Led Flutter track
Became Head of Flutter at GDGoC Benha — roadmap used by 200+ students.
- 2024
Shipped Tadamon
On-device product scanning with cloud sync — open source.
- 2025
Backends + packages
Go APIs with Docker deploys, plus Dart packages with Rust cores and bench scripts.
- 2026
Graduation
Final year — closing the degree while staying open for apps, backends, and package work.
Right
Now.
A snapshot, not a promise — updated as the work shifts.
Flutter track at GDGoC Benha — roadmap, workshops, and the community app V2.
Final stretch of the CS degree at Benha University (2022 – 2026).
Go backends and Dart packages with bench scripts and documented limits.
Apps, backends, and package work. Replies within 48h.
Brief to
Handover.
Same rhythm every time. You always know what comes next and what you receive.
Brief
Scope, platform, and what done looks like. Fixed deliverable list.
Build
Thin slice first: working app or endpoint, then iterate.
Measure
Bench, latency, and edge cases. Numbers go in README.
Harden
Errors, empty states, and store/API docs. Then handover.
Fair
Questions.
The answers clients usually need before the first call.
Yes — open for new opportunities: apps, backends, and package work. Replies within 48 hours.
Certifications
& Achievements.
Head of Flutter
The Complete Flutter Development Guide
The Complete Dart Development Guide
Art
Gallery.
B2B Visual Analysis
B2B Visual Keyword
B2B Visual Hub
BFCAI Identity
Brand New Generation
BNG Keyword Analysis
Sarada Visual Art
Chainsaw Man Makima
Demon Slayer Art
Sensei 106 Persona
Digital Soul 14
Ethereal Background
Free Palestine Art
Honor Gallery Logo
Ice Coffee Team
Japan Coffee Logo
Japanese Girl Portrait
JJK Fight Scene
JJK Sensei Concept
Mostafa Mahmoud Logo
Naruto Style Art
Night Light Concept
Nightscape 14
Pizza Girl Illustration
Red Night Concept
Sakura Petals
Sensei Spy Identity
Sensei Art Archive 44
