Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Full-Stack Software Engineer with 5+ years of experience designing and shipping production web applications. Proficient in C#, ASP.NET Core, React, FastAPI, and PostgreSQL, with strong ownership from initial design through deployment and ongoing maintenance. Experienced building data visualization platforms, AI-integrated workflows, and REST APIs, along with developer tooling across client and personal projects. B.S. in Information Technology (Strayer University), 4.0 GPA.…Full-Stack Software Engineer with 5+ years of experience designing and shipping production web applications. Proficient in C#, ASP.NET Core, React, FastAPI, and PostgreSQL, with strong ownership from initial design through deployment and ongoing maintenance. Experienced building data visualization platforms, AI-integrated workflows, and REST APIs, along with developer tooling across client and personal projects. B.S. in Information Technology (Strayer University), 4.0 GPA.

Zachary Duncan

Full Stack Developer, Web Developer, Back-End Developer, +2





Full-Stack Software Engineer with 5+ years of experience designing and shipping production web applications. Proficient in C#, ASP.NET Core, React, FastAPI, and PostgreSQL, with strong ownership from initial design through deployment and ongoing maintenance. Experienced building data visualization platforms, AI-integrated workflows, and REST APIs, along with developer tooling across client and personal projects. B.S. in Information Technology (Strayer University), 4.0 GPA.…Full-Stack Software Engineer with 5+ years of experience designing and shipping production web applications. Proficient in C#, ASP.NET Core, React, FastAPI, and PostgreSQL, with strong ownership from initial design through deployment and ongoing maintenance. Experienced building data visualization platforms, AI-integrated workflows, and REST APIs, along with developer tooling across client and personal projects. B.S. in Information Technology (Strayer University), 4.0 GPA.

Available to hire

Full-Stack Software Engineer with 5+ years of experience designing and shipping production web applications. Proficient in C#, ASP.NET Core, React, FastAPI, and PostgreSQL, with strong ownership from initial design through deployment and ongoing maintenance.

Experienced building data visualization platforms, AI-integrated workflows, and REST APIs, along with developer tooling across client and personal projects. B.S. in Information Technology (Strayer University), 4.0 GPA.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Work Experience

Software Engineer at Amitech Data Solutions

February 1, 2024 - March 1, 2025

Developed and maintained C#/.NET Core applications used daily by client companies, delivering feature improvements, bug fixes, and performance work under real user load. Refactored legacy WinForms and backend code into a cleaner, more modular structure to reduce the risk of changes breaking unrelated parts of the system. Improved SQL Server query performance by identifying missing indexes and rewriting slow joins, resulting in noticeably better responsiveness for workflows clients use most.

Software Engineer at Ameritech Data Solutions

February 1, 2024 - March 1, 2025

Designed and maintained C#/.NET Core tools used daily by 100+ users, improving efficiency, productivity, and performance. Modernized legacy codebases to be cleaner, more modular, and easier to maintain while adding new tools and features for business needs. Resolved client tickets and fixed high-priority issues, collaborating with managers and the engineering team to deliver reliable solutions on time. Optimized SQL Server and LINQ queries while developing a tool to archive unused database records, cutting load times by 20% and improving maintenance.

Full-Stack Developer at Self-Employed / Freelance

April 1, 2020 - Present

Developed and maintained multiple full-stack web applications with React, ASP.NET Core, and FastAPI, delivering client-focused solutions. Built dynamic dashboards, interactive data visualizations, and custom tools using D3.js, TailwindCSS, and PostgreSQL/SQLite to help clients analyze data. Optimized performance through profiling, object pooling, and memory optimization, while providing ongoing maintenance and feature updates. Built cross-platform game systems and browser games using Unity, Unreal, Phaser, Godot, and JavaScript, including gameplay programming, rapid prototyping, optimization, and adapting projects across engines and platforms.

Full-Stack Developer at Freelance

April 1, 2020 - Present

Developed and maintained multiple full-stack web applications with React, ASP.NET Core, and FastAPI, delivering solutions based on client needs. Engineered dynamic dashboards, interactive data visualizations, and custom tools using D3.js, TailwindCSS, and PostgreSQL/SQLite, helping clients analyse their data. Boosted performance and responsiveness by ~40% using profiling, object pooling, and memory optimization, while managing frontend and backend development across the full lifecycle. Created cross-platform game systems in Unity, Unreal, Phaser, and Godot (C#/C++/JavaScript).