James Hollister

Las Vegas, NV, United States

Member since July 21, 2016

James has a decade of experience analyzing complex business problems and solving them with simple, elegant information systems. Technologies that he has used to build those systems consist primarily of the Microsoft Stack: ASP.NET, C#, SQL Server, WPF, Windows Services, HTML5, and JavaScript. Most recently, James has become active in areas related to blockchain development with smart contracts on NEO and EOS platforms.

James is now available for hire

Hire James

Portfolio

Aphelion Exchange (via Toptal)
C#, Smart Contracts, NEO, Blockchain, JavaScript
MVI Systems (via Toptal)
WPF, C#, XAML
Interstates (via Toptal)
WPF, C#, XAML, SQL Server

Experience

C#, 14 years
ASP.NET, 13 years
Microsoft SQL Server, 12 years
SQL, 12 years
JavaScript, 8 years
WPF, 5 years
Blockchain, 1 year
Smart Contracts, 1 year

Availability

Full-time

Preferred Environment

Windows, Visual Studio, TFS, Azure

The most amazing...

...thing I've made was a decentralized cryptocurrency trading platform running on the NEO network.

Employment

Freelance Blockchain Developer, NEO
2018 - 2018
Aphelion Exchange (via Toptal)
- Worked as a full-stack developer, as part of a small team which built a decentralized cryptocurrency exchange platform.
- Designed and developed a NEO smart contract.
- Designed and built a server application which monitored the NEO blockchain.
- Designed and developed a Vue.js, Electron cross-platform desktop cryptocurrency wallet and trading interface.
- Designed and developed a .NET Core API which matched orders and provided order book information to clients.
Technologies: C#, Smart Contracts, NEO, Blockchain, JavaScript
Freelance WPF Developer
2017 - 2018
MVI Systems (via Toptal)
- Developed touchscreen windows based on a kiosk application in WPF.
- Built real-time communication protocol for data transfers from the client to the server.
- Constructed a SIP integration to initiate phone calls with clients.
Technologies: WPF, C#, XAML
Freelance WPF Developer
2016 - 2017
Interstates (via Toptal)
- Ported a legacy VB 6 application to WPF.
- Assisted with an SQL query performance optimization.
Technologies: WPF, C#, XAML, SQL Server
.NET Developer
2008 - 2010
Tech Results
- Developed and maintained web based applications for the casino gaming industry.
- Implemented SQL Server performance tuning.
- Traveled to client sites for installations and requirements gathering.
- Worked on SQL Server reporting services and SQL Server integration services.
Technologies: C#, ASP.NET, SQL Server
Co-owner | Principal Consultant
2006 - 2008
Ascending Integration
- Consulted with clients to discover opportunities for software to improve their business.
- Developed and managed client relationships.
- Designed and scoped custom software development projects.
- Developed software using ASP.NET, Windows Forms, WPF, and Silverlight.
Technologies: ASP.NET, Windows Forms, C#, SQL Server, JavaScript
ASP.NET Developer
2005 - 2006
Advanced Information Systems
- Managed relationships with clients.
- Built and supported web based applications.
- Developed with ASP.NET Web Forms and JavaScript.
- Implemented SQL Server data access and performance tuning.
Technologies: ASP.NET Web Forms, JavaScript, SQL Server
ASP.NET Developer
2003 - 2005
SmartConnect
- Supported and developed web-based applications for the hospitality industry.
- Implemented SQL Server access via T-SQL and ADO.NET.
- Tuned the SQL Server performance in order to improve the application speed.
- Led the development on a web-based video case management system.
- Supported a legacy Classic ASP application.
Technologies: ASP.NET Web Forms, JavaScript, C3, SQL Server

Experience

MVI Systems (Development)
https://www.mvisystems.com/
I developed a Windows-based touchscreen application for a building entry system.
Aphelion (Development)
https://aphelion.org/
I developed a smart contract, server and client wallet for a decentralized cryptocurrency exchange platform on the NEO blockchain.

Skills

Languages
C#, SQL, JavaScript, T-SQL, Java, PHP
Frameworks
ASP.NET, ASP.NET MVC, WPF, Silverlight, AngularJS
Tools
Visual Studio
Storage
Microsoft SQL Server, SQL Server Integration Services (SSIS), Azure Tables, Azure Blobs, Azure Websites
Libraries/APIs
jQuery, Stripe API, Facebook API, Node.js
Paradigms
Agile, Model View Presenter (MVP)
Platforms
Windows, Azure, Blockchain, WordPress
Other
Smart Contracts

Education

Bachelor's degree in Management Information Systems
2003 - 2008
University of Nevada, Las Vegas - Las Vegas, NV (USA)