Latest Projects

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About Me

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Hello, my name is Matthew Rohr, an entrepreneur and freelancer.

I have a bachelors in Computer Science, live in Southern Oregon and married with two kids. I served in the military for eight years and was the lead engineer for a highly successful SaSS based website for four years.

I am a jack of all trades when it comes to development technology. I learn and adapt quickly. I have worked with some amazing teams on numerous projects that ranged from natively built iOS/Android Apps, WPF/VSTO Windows Software to Java/.NET Websites.

Check out the rest of my work history within my LinkedIn profile:
https://www.linkedin.com/in/matthew-rohr-75945a123

Contracting

I am currently looking for my next contracting project!

I like to build long term relationships with my clients. My hours and prices are flexible. I use FreshBooks for both invoicing and time tracking. I am open to 1099, C2C or even full W2 employment.

If you live in Southern Oregon, we can do a meet and greet.

Email: mattrohr@firstcenturythinking.com

Do NOT contact me with unsolicited services or offers.

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Android Mobile App Development

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Latest Mobile App Projects

I have 7+ years experience building both native Android and iOS apps. Although lately I have been more focused on Android development.

Check out my latest personal Android project:
https://www.firstcenturythinking.com/apps/brainia-brain-training-games-for-the-mind

• Native app development using Android Studio
• Localization Techniques
• iOS -> Android conversions
• Comfortable with Kotlin or Java
• Android Architecture Components (LiveData, ROOM, ViewModels, MVVM)
• Agile Development using JIRA, Peer Reviews, Scrum
• Coroutines, Constraint Animations
• Implementing IAP – Subscriptions, Paid, One Time Purchases
• Unit Testing, UI Testing (Expresso)
• ASO Techniques
• Third Party Integrations (Ad solutions, Analytics, Custom Integrations)
• Google Firebase (Real Time DB, Crash Reporting, Authentication, Analytics….)
• AWS (back end solution using EC2, S3, Cloud Front, API, RDS, Push and more)
• Database experience including: Sqlite, MySQL, MSSQL and NoSQL
• ORMS : ROOM, GreenDao

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Website Development

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Latest Website Projects

I have over 10 years experience developing websites using Java, .NET and some PHP.

Some of these past website projects I was the sole engineer responsible for the complete development (back to front end), while other projects I was either part of a team or the lead dev. I was also the lead engineer for Sharefaith.com for four years.

The technologies for many of these high-profile website projects ranged from simple WordPress sites, Ecommerce solutions, to full stack development in both Java and .NET technologies.

• CMS Systems
• .Net Website Technologies
• Java (jsp/springs) Website Technologies
• WordPress
• MySQL and MSSQL
• Various ORM’s including Hibernate
• AWS Systems (EC2, S3, Cloud Front and more)
• Front End Development (HTML/CSS/JavaScript)
• SEO (search engine optimization)
• API integration and development
• Linux and Windows Server Admin
• Admin Panels
• Membership Systems & Management
• Customer Service Utilities
• Custom Metric and Analysis Solutions

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Software Development

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Latest Software Projects

I have 12+ years’ experience developing software using Windows technologies.

I have engineered multiple Windows WPF, VSTO, VB and C# form applications. Some were basic apps with installers while others required custom back end server solutions that included license checking, Ecommerce integration, custom updaters & installers, api's, customer support and admin tools all custom built using AWS, oAuth and Java/.Net web technologies.

• WPF
• VSTO – PowerPoint plug in
• Window Forms
• C#, VB
• Installers
• License Checking
• API Integrations
• E-Commerce Integration

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About First Century Thinking LLC

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