Max Professional Android App Developer | Kotlin & Jetpack Compose Expert

Hire an experienced Android developer who builds real apps that solve real problems. Specializing in Kotlin, Jetpack Compose & Material Design 3. From security camera systems to productivity tools - I turn ideas into polished, professional Android applications. Currently shipping EasyCCTV and Lists & Notes to thousands of users.

1
Published Apps
2
In Development
Max Cornett - Professional Android App Developer specializing in Kotlin and Jetpack Compose

About Me

From curiosity to creating apps that matter

I'm not here to tell you I've been coding since I was 5. What matters is this: I build real apps that solve real problems, and I ship them to real users.

My journey into app development started with a challenge - I wanted to create something people could hold in their hands and use every day. Now I'm developing Android and desktop applications using modern technologies like Kotlin, Jetpack Compose, and Material Design 3.

EasyCCTV turns Android phones into security cameras. Lists & Notes is a no-BS note-taking app that's actually free (no trials, no ads, no catch). Both are live, both are being used, and both are just the beginning.

I have programming experience across multiple languages - C/C++, Python, JavaScript, PHP - mostly at a hobbyist level until now. I first started programming at 12 years old when my father brought home an old 486 PC running MS-DOS with a handbook of MSBASIC. That curiosity never left. Now I'm channeling years of tinkering and experimentation into professional Android development, bringing that same problem-solving mindset to every project.

Currently studying: "Modern Java in Action" (audiobook) to deepen my understanding of functional programming concepts and modern Java patterns that directly enhance my Kotlin work. Clean architecture and MVVM: I follow best practices to ensure my code is maintainable, testable, and scalable. I believe in writing code that not only works but is also easy to understand and extend. Currently been listening to lots of good fragmented podscasts such as "Navigating the Compose Multiverse" "Kotlin Design Patterns And Best Practices" "The Cirtcuit - Compose driven architecture for Kotlin and android" to really tro to perfect my kotlin learning experience and try to learn it the correct way from the get go.

2+ Published Apps
5000+ Lines of Kotlin
100% Committed
Android developer Max Cornett working on mobile app development projects with Kotlin

Tech Stack

The tools and technologies I use to build great apps

Frontend Development

HTML5
CSS3
JavaScript
React
Vue.js

My Frontend Philosophy

I believe in creating intuitive, accessible, and performant user interfaces that provide exceptional user experiences. My approach focuses on modern web standards, responsive design, and progressive enhancement.

Specialties:
  • Responsive Web Design & Mobile-First Development
  • Single Page Applications (SPAs) with React & Vue.js
  • Modern CSS (Grid, Flexbox, Custom Properties)
  • JavaScript ES6+ & TypeScript
  • Web Performance Optimization
  • Accessibility (WCAG 2.1 compliance)

Featured Projects

Project A

Short project description goes here.

Tech • Stack
Project B

Short project description goes here.

Tech • Stack
Project C

Short project description goes here.

Tech • Stack

Backend Development

Node.js
Python
MongoDB
PostgreSQL
AWS

Server-Side Excellence

I architect robust, scalable backend systems that handle complex business logic while maintaining high performance and security standards. My focus is on clean code, efficient databases, and reliable API design.

Specialties:
  • RESTful API Design & GraphQL Implementation
  • Microservices Architecture
  • Database Design & Optimization
  • Cloud Infrastructure (AWS, Docker)
  • Server Security & Authentication
  • Performance Monitoring & Scaling

Featured Projects

Payment Processing API

Secure payment gateway handling $1M+ transactions

Node.js • PostgreSQL • Stripe
Inventory Management

Real-time inventory system for e-commerce platform

Python • Redis • WebSockets
User Analytics Platform

High-performance data processing and analytics API

Node.js • MongoDB • AWS Lambda

Android & Mobile Development

Android (Kotlin)
Jetpack Compose
Material Design 3
Room & SQLite
Camera2 API

Building Real Android Apps

I'm not claiming to be a 10-year veteran. What I am: actively shipping Android apps using modern tools and best practices. Kotlin is my language of choice. Jetpack Compose handles my UI. MVVM architecture keeps things clean.

Tech Stack & Expertise:
  • Kotlin - Primary development language
  • Jetpack Compose - Modern declarative UI framework
  • Material Design 3 - Following latest design guidelines
  • MVVM Architecture - Clean, testable code structure
  • Camera2 API - Advanced camera control (EasyCCTV)
  • Room Database - Local data persistence
  • Coroutines & Flow - Async operations done right
  • Networking - HTTP servers, REST APIs, MJPEG streaming

Real Apps I've Built

EasyCCTV

Security camera app with real-time MJPEG streaming

Kotlin • Compose • Camera2 • HTTP Server
Lists & Notes

Note-taking app with rich formatting and categories

Kotlin • Compose • Room • Material 3
Next Project

Currently exploring desktop apps with Compose Multiplatform

Kotlin • Compose Desktop • JVM

Cybersecurity

Web Security
Penetration Testing
Vulnerability Assessment
Security Auditing

Security-First Mindset

In today's digital landscape, security isn't optional—it's fundamental. I implement comprehensive security measures from the ground up, ensuring applications are protected against evolving threats while maintaining usability and performance.

Specialties:
  • OWASP Top 10 Vulnerability Assessment & Mitigation
  • Penetration Testing & Ethical Hacking
  • Security Code Review & Static Analysis
  • Authentication & Authorization Systems
  • Encryption Implementation & Key Management
  • Security Compliance (GDPR, HIPAA, PCI DSS)

Featured Projects

Banking Security Audit

Complete security assessment for fintech startup

Burp Suite • OWASP ZAP • Custom Scripts
Vulnerability Scanner

Automated web application security testing tool

Python • Selenium • Docker
Secure Chat Platform

End-to-end encrypted messaging application

Node.js • WebRTC • AES Encryption

Programming Languages

Languages I use for different types of development

Systems Programming

C/C++ Advanced
High-performance applications, System programming
Java Intermediate
High-performance applications, System programming
Rust Intermediate
Memory-safe systems, Web backends

Web & Application Development

Python Expert
Web development, AI/ML, Automation
JavaScript Expert
Frontend, Backend (Node.js), Full-stack
PHP Expert
Server-side development, CMS

Scripting & Automation

Bash/Shell Advanced
System administration, CI/CD, DevOps
PowerShell Intermediate
Windows automation, Azure management
Hobby Projects

Embedded & Hardware

Arduino C++ Intermediate
IoT projects, Sensor automation
Assembly Beginner
Low-level programming, Learning
VHDL Beginner
FPGA programming, Digital design

Why Kotlin? Why Now?

Strategic thinking about the future of app development

The Question Every Developer Asks

"What will be the big thing in the next 10 years? What's the next big step into the future?"

My Answer: Kotlin

Right now, I really believe in Kotlin. I had the opportunity to try it some time back, and the coding syntax is fairly unusual - it takes time getting used to. But it's so much neater once you do.

I decided to focus on Kotlin for a strategic reason: I have many years under my belt with C/C++ and similar syntax languages. So it made sense to take the time to learn Kotlin and see what it offers.

The Strategic Play

Sure, I could have just learned Java like everyone else. Here's the problem with that:

  • Java is easy for me - I can learn it very quickly since I know that kind of syntax in my sleep
  • Kotlin is unique - Its syntax is so very special that it really takes time to get into it
  • Better job prospects - I have a better chance of landing a job, even if I might be a bit slow at Java the first few weeks. I could spend those weeks on the job adjusting.
  • Can't do it in reverse - I couldn't have done the opposite. Starting with Java and learning Kotlin on the job would be much harder.

The Market Bet

It's a pretty niche market, sure. But I believe Kotlin will grow heavily with the incoming younger generations.

Google made Kotlin the preferred language for Android development. Companies are modernizing their codebases. The trajectory is clear - and I'm positioning myself ahead of the curve.

That's the kind of strategic thinking I bring to projects.

My Apps

Real applications solving real problems - built, shipped, and actively maintained

Coming Soon

Lists & Notes

Note-Taking Without the BS

A no-nonsense note-taking and list management app for Android. No trials, no ads, no hidden costs, no upsells. Just notes and lists that actually work. Free forever because that's what it should be.

Kotlin Jetpack Compose Room Database Material Design 3 MVVM

Key Features:

  • Quick note creation with auto-save
  • Smart lists with checkable items
  • Rich text formatting (bold, italic, bullets)
  • Organize with folders and categories
  • Fast search across all notes
  • 100% offline - all data stays on your device
Always Free
Zero Ads
Private

Development Progress:

November 2025: Core functionality complete! Currently in closed testing phase of development. Please contact me to be a beta-tester! Working on polish and testing before release. The Room database integration is smooth, and Jetpack Compose makes the UI incredibly responsive. Planning to add themes, export functionality, and maybe voice notes in future updates. Current focus: making sure the free promise is sustainable forever.

Next Project

Got ideas brewing. Desktop apps, productivity tools, maybe a game. The best part about being an app developer? You can build anything you imagine.

Hiring? Let's talk about bringing your app idea to life.

Start a Conversation

Development Blog

Thoughts, updates, and lessons learned while building apps

Building Lists and Notes: A Modern Android App with Jetpack Compose and MVVM

After searching everywhere for a simple, ad-free notes app that actually worked the way I wanted, I decided to build my own. Here's the complete story of developing Lists and Notes - a feature-rich Android application built with Jetpack Compose, Room database, and proper MVVM architecture.

Read More →

How to Hire an Android Developer in 2025: Complete Guide for Startups

Hiring the right Android developer can make or break your mobile app project. This comprehensive guide shows you exactly what to look for, questions to ask, and how much you should expect to pay.

Read More →

Building EasyCCTV: How I Built a Security Camera App with Kotlin & Camera2 API

From concept to Play Store: A detailed breakdown of how I built EasyCCTV, an Android security camera app using modern tech stack including Kotlin and Camera2 API.

Read More →

Why Work With Me

Straight talk about what you're actually getting

I Ship Real Products

Not concept art. Not prototypes that "almost work." Real apps that you can download right now and that actual people use. EasyCCTV is live. Lists & Notes is nearly there. Your project will get the same treatment.

Modern Tech, No BS

Kotlin, Jetpack Compose, Material Design 3, MVVM architecture. I use tools that make apps better, not buzzwords that make presentations prettier. Clean code matters. User experience matters more.

Clear Communication

You'll know where your project stands. No jargon unless you ask for it. Regular updates. Honest timelines. If something's harder than expected, you'll hear about it before it's a problem.

I Actually Care

These aren't just gigs. I'm building a portfolio, a reputation, and honestly? I love this stuff. Your app success is my app success. When users love what we build together, that's the whole point.

Reliable & Committed

I finish what I start. Deadlines matter. Quality matters. If I take your project, I'm seeing it through. No disappearing acts, no excuses. Just solid work until we hit "publish."

Growing, Not "Expert"

I'm not selling 20 years of experience I don't have. What I am: motivated, capable, and learning fast. Two apps shipped. More coming. That energy and hunger? It's worth something.

Ready to Build Something Great?

Whether you need an Android app, desktop application, or want to discuss a crazy idea - let's talk.

Start a Project

What Clients Say

Don't just take my word for it

"Exceptional work! The website exceeded our expectations and the security audit helped us identify critical vulnerabilities."

Client 1

Sarah Johnson

CEO, TechStartup Inc.

"Professional, reliable, and delivered exactly what we needed. The mobile app has been a game-changer for our business."

Client 2

Mike Chen

Founder, FitLife App

Let's Build Something

Got an app idea? Need a developer? Let's make it happen.