Andrei is available for hire
Hire AndreiAndrei Maksimovich
Verified Expert in Engineering
Unity and Android Developer
Batumi, Adjara, Georgia
Toptal member since April 5, 2022
Bio
Andrei is a full-stack Unity and Android developer with over ten years of experience in mobile app and game development. He is particularly enthusiastic and passionate about education projects and the gamification of education. His strengths are his varied experience and creativity. Andrei has expertise in developing mobile applications, covering planning, prototyping, development, testing, implementation, and subsequent cyclic updates for long-term support.
Portfolio
Amax Software Sp. z o.o.
Unity, C#, Java, Android, Google Play Console, iOS, WebGL, Linux, NGINX...
Coatsink
Unity, JavaScript, Node.js, Cloud
Decerto
Android, Java, XML
Experience
- Applied Mathematics - 12 years
- Android - 10 years
- Mobile App Development - 10 years
- C# - 6 years
- Unity - 6 years
- Mobile Game Development - 6 years
- iOS - 5 years
- Node.js - 5 years
Preferred Environment
Unity, Android Studio, Xcode, WebStorm
The most amazing...
...thing I've developed is a modular engine for educational content with games and activities, remote content storage, and a paid subscription system.
Work Experience
Project Manager | Unity Developer | Android Developer
2013 - PRESENT
Amax Software Sp. z o.o.
- Developed an engine for educational content with many activities and games, remote content storage based on Unity Addressables, and a system of paid subscriptions.
- Managed and organized the work of creative professionals, such as artists, game designers, and content creators.
- Developed and published over 300 mobile applications.
- Built several educational applications and games in Unity.
- Set up several server clusters with failover protection and division into regions.
- Managed and configured web servers, web services, CDN, SSL, domains, and DNS.
- Created an engine for Android live wallpapers with custom physics, shaders, light, and effects.
Technologies: Unity, C#, Java, Android, Google Play Console, iOS, WebGL, Linux, NGINX, Apache Tomcat, SSL, Servers, Project Design, Software Architecture
Senior Unity Developer/Engineer
2023 - 2025
Coatsink
- Played a key role in improving game performance by developing custom Unity tools for optimization, including Mesh Merging, Texture Atlasing, and a Shader Generator.
- Created and managed dual build systems for WebGL for mobile and PC and streamlined build pipelines and CI/CD, ensuring efficient deployment processes.
- Transformed Ready Set Cook into a stable product, driving a 5x increase in monthly players to over 2 million through targeted optimizations and fixes.
Technologies: Unity, JavaScript, Node.js, Cloud
Android Developer
2012 - 2013
Decerto
- Developed an Android version of an application for an insurance company. The application was used for calculating the cost of car insurance and accident announcements with descriptions of damage, videos, and photos.
- Created a library for recognizing a document number from a photo. Trained a neural network and worked with OCR libraries.
- Modified the mathematical algorithm and developed a library for checking the client's signature.
- Developed a prototype of the video communication feature on the site using the SIP protocol.
Technologies: Android, Java, XML
Lecturer
2011 - 2012
Grodno State University
- Taught logistics in the mathematical sense, such as optimization and numerical methods.
- Held lectures on the course called Fundamentals of Programming.
- Conducted laboratory and practical classes in programming.
Technologies: Logistics, Applied Mathematics, Programming
Software Engineer
2009 - 2011
IPO
- Developed a knowledge testing system with authorization, time limit, control over the number of attempts, an admin panel, and the ability to import data.
- Set up and administered a network of over 50 machines.
- Developed and administered the institution's website.
- Set up a system of automatic data backups and a system for storing system disk images and quick recovery.
Technologies: PHP, MySQL, JavaScript, HTML, Linux
Experience
Amax Kids Academy
https://amaxkids.comThis educational app for preschoolers is available on Android, iOS, and WebGL.
While developing this application, I acted as the project manager and full-stack Unity developer. Two artists and a content creator for children were on the team with me. In this application, I developed a modular engine to run games and activities such as coloring books, educational flashcards, animated books, and puzzles.
We also added an activity database for quick search and automatic creation of UI, a remote content storage system based on Unity Addressables, a localization system for text and assets, and mechanisms and tools required for automatic import of data with texture transformation, generation of scriptable objects, metaparameters, icons, creation, and configuration of asset packs. I developed shaders; more than thirty of them are written by hand, and some are developed in Shader Graph. I was involved in creating 2D skeletal animations.
I also contributed to the development and deployment of server infrastructure.
While developing this application, I acted as the project manager and full-stack Unity developer. Two artists and a content creator for children were on the team with me. In this application, I developed a modular engine to run games and activities such as coloring books, educational flashcards, animated books, and puzzles.
We also added an activity database for quick search and automatic creation of UI, a remote content storage system based on Unity Addressables, a localization system for text and assets, and mechanisms and tools required for automatic import of data with texture transformation, generation of scriptable objects, metaparameters, icons, creation, and configuration of asset packs. I developed shaders; more than thirty of them are written by hand, and some are developed in Shader Graph. I was involved in creating 2D skeletal animations.
I also contributed to the development and deployment of server infrastructure.
iOS Application: AR Meter, Ruler, Spirit Level
https://apps.apple.com/pl/app/ar-meter-ruler-spirit-level/id6748009557Designed and developed a mobile utility application that transforms an iPhone into a versatile measurement tool for everyday, DIY, and professional use. The app combines multiple measurement capabilities in a single intuitive interface, allowing users to accurately measure objects, distances, and surface alignment without dedicated hardware.
Key Features
• Digital on-screen ruler for precise measurement of small objects.
• Augmented Reality (AR) ruler for measuring real-world objects, distances, and spaces using the device camera.
• Integrated spirit level for verifying horizontal and vertical alignment of surfaces.
• User-friendly interface optimized for quick access to measurement tools.
• Real-time measurement calculations powered by Apple's AR technologies.
Technologies
• Swift 6
• SwiftUI
• ARKit
• Core Motion
• AVFoundation
• Native iOS development
Key Features
• Digital on-screen ruler for precise measurement of small objects.
• Augmented Reality (AR) ruler for measuring real-world objects, distances, and spaces using the device camera.
• Integrated spirit level for verifying horizontal and vertical alignment of surfaces.
• User-friendly interface optimized for quick access to measurement tools.
• Real-time measurement calculations powered by Apple's AR technologies.
Technologies
• Swift 6
• SwiftUI
• ARKit
• Core Motion
• AVFoundation
• Native iOS development
iOS Application: Domain Watcher
https://apps.apple.com/us/app/domain-watcher/id6778109671Designed and developed a Domain Watcher and SSL Monitoring Application (iOS) that helps website owners, developers, and businesses prevent unexpected service disruptions caused by expired domains or SSL certificates. The application continuously monitors website infrastructure and proactively alerts users before critical expiration dates are reached.
Key Features
• Automated domain expiration monitoring with advanced notifications.
• SSL/TLS certificate expiration tracking and warning alerts.
• Website availability monitoring through HTTP response validation.
• Support for monitoring multiple domains and websites from a single dashboard.
• Real-time status visibility for critical web assets.
Technologies
• Swift 6
• UIKit
• Core Data
• Background Tasks
• UserNotifications
• Network Framework
• Native iOS development
Key Features
• Automated domain expiration monitoring with advanced notifications.
• SSL/TLS certificate expiration tracking and warning alerts.
• Website availability monitoring through HTTP response validation.
• Support for monitoring multiple domains and websites from a single dashboard.
• Real-time status visibility for critical web assets.
Technologies
• Swift 6
• UIKit
• Core Data
• Background Tasks
• UserNotifications
• Network Framework
• Native iOS development
Education
2004 - 2010
Master's Degree in Informatics and Applied Mathematics
Grodno State University - Grodno, Belarus
Skills
Libraries/APIs
WebGL, Node.js
Tools
Android Studio, JetBrains Rider, NGINX, Apache Tomcat, Xcode, WebStorm
Languages
C#, Java, Swift, Swift 6, PHP, JavaScript, HTML, XML
Frameworks
Unity, Android SDK, SwiftUI, UIKit, Core Data
Platforms
Linux, Android, iOS
Storage
MySQL
Other
Applied Mathematics, Mathematics, Mobile Game Development, Mobile App Development, Google Play Console, SSL, Software Architecture, Cloud, Computer Science, Logistics, Programming, Servers, Project Design, Shaders, App UX
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