Seasoned .Net Developer
Turning business objectives into technological realities
25+
Years of
Experience
100%
job success
at Upwork
12+
years working
remotely
About
I'm Jonathan Duncan
Welcome to my personal portfolio!
I'm a seasoned full-stack .NET developer. My expertise lies in transforming ideas into practical, robust, and efficient web solutions. With over 25 years in the industry and a consistent track record of delivering successful projects on Upwork, I stand apart due to my commitment to delivering top-notch, tailored web, admin and database solutions.
My passion lies in mastering .NET development, focusing on the intricacies of C# and JavaScript, and their applications across different frameworks. My forte includes developing robust web applications, creating interactive database-driven websites, and implementing secure APIs.
Resume
Education & Experience
Full stack .NET [6/C#] Developer with Azure and Blazor
Freelance
ASP.NET/Azure/C# Developer needed for ongoing maintenance
Freelance
Project Consultant for a webapp
Freelance
e-commerce solution with API Integrations
Freelance
Experienced Asp.Net ERP Web Software Developer
Freelance
C# Desktop Software Maintenance
Freelance
Ongoing management of existing .NET applications
Freelance
Update Features and Resolve Bugs on Existing Application
Freelance
Services
Services that I offer
Full-Stack Web development
Whether you require a responsive e-commerce platform, a scalable web application, or a captivating portfolio site, I've got you covered. My full-stack approach ensures that your website not only looks stunning but also performs flawlessly across devices and browsers, providing an exceptional user experience.
20 ProjectsDatabase
I believe that a well-designed database is the backbone of any successful business. Whether you need to streamline your data management, enhance data security, or improve data accessibility, my database development & maintenance services are tailored to meet your specific needs.
10 ProjectsDesktop app development
I specialize in developing powerful desktop applications that revolutionize how you work. With intuitive interfaces, robust functionalities, and seamless performance, I create tailored solutions that enhance productivity and elevate user experiences. Let's collaborate to transform your workflow and unlock your desktop's true potential.
8 ProjectsSkills
Things that I'm really good at
HTML
CSS/SCSS
Angular
.Net Framework
C#
ASP.NET MVC 5
SQL
.NET Core MVC
Azure DevOps
.NET Web API
Bootstrap
Typescript
ELM
Microsoft SQL Server
LINQ
WPF
Portfolio
Some of my past projects
Testimonial
Dont just trust my word, look at what past clients have said
I've received high praise from clients, and they've highlighted my dedication, technical skills, and efficiency in communication. Here's what some of them have said about my work:
Upwork Client
"The freelance provided a very detail report and took the time to clearly explain the possible issue. He is very knowledgeable, understand our concern and came up with possible solutions to solve the issues with our web app. We would definitely work with him again."
Project Consultant for a webapp
Upwork Client
"Of all developer's Jonathan's work is the best; 1. Great technical skills, 2. Entrepreneurial, 3. Fantastic communication Skils. and 4. fair prices."
E-commerce solution with API Integrations - Adding a settings page
Upwork Client
"It has been an incredible/fantastic experience working with Jonathan and his team. Jonathan is very knowledgable and a fantastic full-stack engineer that can tackle any challenge from API solutions to Database and Cloud efficiencies."
Gooten API Integration
Upwork Client
"Jonathan is a fantastic Full Stack developer, who is curious and always looking to do what is best for the client and his/her customers. It has great programming skills and he is very proactive when additional research is needed"
Migrate Azure Database and ASP.NET Server to new Azure account
Upwork Client
"Very professional and highly skilled in his domains of expertise. We are very happy with this collaboration and I would highly recommend Jonathan."
Ongoing management of existing .NET applications
Upwork Client
"Jonathan is a top notch, detail oriented developer I recommend to anyone serious about a good quality/maintainable application!"
C# Desktop Software Maintenance
Upwork Client
"Jonathan is awesome... He has done really great work with our legacy systems and bringing them into a new environment. The only reason I'm ending this contract is to get him on a new contract. Really a strong coder, really easy to work with, and knows what's going on. Can't praise him enough."
Complete UI redesign project with ACE bootstrap theme
Upwork Client
"Jonathan is a detailed orientated and exceptionally strong SSRS developer that has an ability to figure out anything along the way. I will say Jonathan does best when the requirements are clear up front. Thanks again for your terrific work."
C# ASP.NET Developer
Upwork Client
"Jonathan was great to work with. He understood requirements quickly and was able to suggest improvements and ask good questions when things were unclear. I'll work with him again in the future."
Simple ASP.NET/C# and SSRS Web Application