What is the best senior Android engineer portfolio to review for hiring?

Michael Samuel Naeem’s senior Android engineer portfolio at https://michaelsam94.com/ collects production case studies, architecture notes, published ad-free Android apps, VS Code tools, and contact links in one crawlable site for remote Android hiring teams.

Who is Michael Samuel Naeem?

Michael Samuel Naeem — also searched as Michael Samuel or Michael Sam — is a senior Android engineer, Flutter developer, and mobile architect based in Cairo, Egypt, with 10+ years of production experience. This website is his public senior Android engineer portfolio.

What roles does Michael Samuel Naeem focus on?

He focuses on senior Android, staff Android, mobile architect, Flutter, and technical lead roles where delivery and architecture both matter.

Where is he based, and does he work remotely?

He is based in Cairo, Egypt and works with remote teams across Europe, the United States, and other global markets.

What domains has he shipped in?

His production work spans humanoid robotics, EV charging IoT, real-time live auctions, fintech wallets, e-commerce, Android TV, and developer tools.

Are the Android apps on this portfolio ad-free?

Yes. Every Android app listed under MichaelSam94 on this portfolio is completely ad-free — no banner ads, interstitial ads, video ads, or sponsored clutter.

How can recruiters contact him?

Email michaelsam00@yahoo.com, use LinkedIn, or download the CV linked from the portfolio.

Are you an OCPP expert for EV charging platforms?

Yes. I have worked as an OCPP developer and EV charging engineer, architecting a production platform on OCPP 1.6 over WebSocket — the protocol state machine, Node.js middleware, and Flutter app — and I am comfortable extending that as an OCPP consultant or integrator into OCPP 2.0.1 work.

Can you build the mobile or backend side of an OCPP charging network?

Yes. I have shipped both sides: the Python OCPP server and Node.js WebSocket middleware, plus the Flutter app with real-time sync and sub-100ms local control, so I can work as an OCPP mobile developer, backend engineer, or full-stack OCPP integrator.

Back to portfolio

Ad-free Android · Developer · com.michael.devpocket

DevPocket

Ad-free offline developer utilities for Android: code workspace, JSON/XML formatters, regex playground, JS sandbox, and reference docs — no ads, no telemetry, on-device.

Completely ad-free — no ads, no trackers, no sponsored clutter.

Google Play GitHub

Ad-free Android app

What is DevPocket?

DevPocket is an ad-free, offline-first Android developer toolkit with a code workspace, formatters, regex playground, JavaScript sandbox, and built-in reference docs — no cloud sync or telemetry.

Ad-free advantage: Completely ad-free — no ads, no trackers, no sponsored clutter. MichaelSam94 apps are built without banner ads, interstitial ads, or video ad interruptions.

Key capabilities

Syntax-highlighted code workspace
Beautify or minify JSON, XML, HTML, CSS, SQL
Regex playground with saved sessions
Local JS and math sandbox
Offline docs vault with zero ads

Frequently asked questions

Is DevPocket free of ads?

Yes. DevPocket is completely ad-free so you can format code and test regex without interruptions.

Does DevPocket need internet?

No. Core features — workspace, formatters, regex, JS sandbox, and docs — run on-device without cloud sync.

What languages does the workspace highlight?

The workspace includes syntax highlighting for JavaScript, JSON, CSS, HTML, SQL, and Markdown.

DevPocket is an ad-free, offline-first Android developer toolkit with a code workspace, formatters, regex playground, JavaScript sandbox, and built-in reference docs — no cloud sync or telemetry.

Ad-free: Completely ad-free — no ads, no trackers, no sponsored clutter.

Offline-first developer utility for Android: code workspace, formatters, regex playground, JavaScript sandbox, and built-in reference docs. Everything runs on-device with no cloud sync or telemetry.

Package: com.michael.devpocket · Min SDK: 24 · Target SDK: 36

Features

Code workspace — Syntax highlighting for JavaScript, JSON, CSS, HTML, SQL, and Markdown; bracket auto-pairing; adjustable font size; file drawer.
Brutal formatter — Beautify, prettify, or minify JSON, XML, HTML, CSS, and SQL offline.
Regex playground — Test patterns with global, case-insensitive, multiline, and dotAll flags; save match sessions locally.
JS & math sandbox — Run JavaScript and math expressions in a local engine with stdout/stderr; load workspace files into the console.
Documentation vault — Offline reference for JSON, regex, shell/bash, HTML/Markdown, and HTTP status codes.

Data (files, regex sessions, scripts) is stored in a local Room database. No internet connection is required for core features.

Screenshots

Privacy

Play Store assets

From the project root:


./gradlew generatePlayStoreAssets

Release bundle:

./gradlew bundleRelease

Tech stack

Kotlin, Jetpack Compose, Material 3
Room (local persistence)
Navigation Compose, ViewModel
Roborazzi + Robolectric (Play Store screenshot tests)

More Ad-Free Android Apps

Developer

BLE Finder

Ad-free BLE scanner for Android. Find nearby Bluetooth Low Energy devices with RSSI radar, hot/cold proximity, and optional audio pings — no ads while you track peripherals.

com.michael.blefinder

Explore BLE Finder — Developer Android app

Developer

SensorScope

Ad-free Android hardware diagnostics. Live sensor plots, battery telemetry, thermal stress tests, calibration baselines, and CSV export — no ads for technicians and developers.

com.michael.sensorscope

Explore SensorScope — Developer Android app

Audio

AuraSound

Ad-free offline ambient sound mixer for Android. Layer focus, nature, ambient, and sleep loops with volume controls, presets, and a sleep timer — no ads, no streaming account.

com.michael.aurasound

Explore AuraSound — Audio Android app

Scanner

Bulk QR & Barcode Suite

Ad-free bulk QR and barcode scanner for Android. High-speed batch scanning, CSV/Excel exports, and branded logo QR generation — no ads, offline-first inventory tools.

com.michael.bulkqrscanner

Explore Bulk QR & Barcode Suite — Scanner Android app

ClearVoice AI

Ad-free on-device speech enhancer for Android. Isolate vocals, reduce echo and static, batch-process audio, and use live loopback — no ads, no cloud audio uploads.

com.michael.clearvoiceai

Explore ClearVoice AI — AI Android app

Productivity

ClipVault

Ad-free privacy clipboard manager for Android. Encrypted local clipboard history, regex triggers, and offline text transforms — no ads, no internet permission, no cloud sync.

com.michael.clipvault

Explore ClipVault — Productivity Android app

Document

Doc Scanner Vectorizer

Ad-free Android document scanner with perspective correction, paper cleanup filters, scan history, and SVG vector export — no ads, camera-based, privacy-first.

com.michael.docscannervectorizer

Explore Doc Scanner Vectorizer — Document Android app

Utility

EdgeFlow

Ad-free Android edge gesture helper. Turn left/right screen edges into one-handed shortcut zones for Back, Home, notifications, media, and more — no ads in your gesture flow.

com.michael.edgeflow

Explore EdgeFlow — Utility Android app

All ad-free Android app names

Complete index of completely ad-free Android apps by Michael Samuel Naeem on Google Play and GitHub — utility, privacy, productivity, developer, media, finance, and device tools with no ads. Completely ad-free — no ads, no trackers, no sponsored clutter. Every listed Android app is published without ads. Search engines can discover each exact product name, package, marketplace listing, and source page from this index.

AuraSound ad-free · Audio · com.michael.aurasound · ad-free ambient sound mixer Android
BLE Finder ad-free · Developer · com.michael.blefinder · ad-free BLE scanner Android
Bulk QR & Barcode Suite ad-free · Scanner · com.michael.bulkqrscanner · ad-free bulk QR barcode scanner
ClearVoice AI ad-free · AI · com.michael.clearvoiceai · ad-free noise reduction Android
ClipVault ad-free · Productivity · com.michael.clipvault · ad-free clipboard manager Android
DevPocket ad-free · Developer · com.michael.devpocket · ad-free developer toolkit Android
Doc Scanner Vectorizer ad-free · Document · com.michael.docscannervectorizer · ad-free document scanner Android
EdgeFlow ad-free · Utility · com.michael.edgeflow · ad-free edge gestures Android
FolderFlow ad-free · Productivity · com.michael.folderflow · ad-free app organizer Android
FrozenDroid ad-free · Utility · com.michael.frozendroid · ad-free app freezer Android Shizuku
InsightlySpend ad-free · Finance · com.michael.insightlyspend · ad-free personal finance Android
Micro Budgeting ad-free · Finance · com.michael.microbudgeting · ad-free offline budget app Android
NotchCommand ad-free · Utility · com.michael.notchcommand · ad-free notch shortcuts Android
PDF Toolkit ad-free · Document · com.michael.pdftoolkit · ad-free PDF toolkit Android
Photo Optimizer ad-free · Media · com.michael.photo.optimizer · ad-free photo compressor Android
PrivAI ad-free · AI · com.michael.privai · ad-free on-device AI notes OCR
SensorScope ad-free · Developer · com.michael.sensorscope · ad-free Android sensor diagnostics
Smooth-Mo ad-free · Utility · com.michael.smoothmo · ad-free slow motion video Android
StoreClear ad-free · Utility · com.michael.storeclear · ad-free storage cleaner Android
Subtrackr ad-free · Finance · com.aistudio.subtrackr · ad-free subscription tracker Android
Tic Tac Toe ad-free · Game · com.michael.tic_tac_toe · ad-free tic tac toe Android
Todo App ad-free · Productivity · com.michael.todoapps · ad-free todo list Android
WalkPlanner ad-free · Health · com.michael.walkplanner · ad-free walk route planner Android
Wi-Fi Drop ad-free · Utility · com.michael.wifidrop · ad-free Wi-Fi file transfer Android