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I am Mi-Yeon.

A

Software Engineer

About

I'm a Creative and Resourceful Software Engineer with 10+ years of experience delivering modernization for full-stack projects, as well as desktop applications. Solving complex problems with no clear answer is my passion. While not delivering enterprise code, I enjoy reverse engineering, game modding, and game developmment.

Experience

  • Senior Full-Stack Software Engineer

    InvestCloud, Inc.

    Feb. 2019 - Jun. 2025
    • Partnered with InfoSec team to remediate OWASP Top 10 and CVE risks across legacy and active codebases, reducing security exposure across client-facing and internal applications.
    • Maintained a modular full-stack application in C#, ASP.NET Core, Angular, Node.js, and MS SQL, supporting 500+ clients and thousands of end users per client.
    • Developed and upgraded internal deployment and transpiler tools in WinForms, WPF, and C# with multithreading.
    • Designed and upgraded RESTful API endpoints for transacting with a private-cloud data warehouse.
    • Implemented ADA and AODA accessibility standards for 100% of client-facing utilities, improving compliance and usability for end users.
    • Automated data-management workflows with scripts and CI/CD pipelines, reducing manual effort for internal teams.
    • Mentored 5 software developers through code reviews, architecture guidance, and delivery support, strengthening team execution and technical consistency.
    • Coordinated delivery using Agile/SCRUM ceremonies, daily standups, and retrospectives in place of project management.

    • C#

    • ASP.NET Core

    • Angular

    • HTML

    • CSS

    • JavaScript

    • TypeScript

    • REST

    • SQL Server

    • Node.js

    • JSON

    • WinForms

    • WPF

    • Python

    • DevOps

  • President & Lead Software Engineer

    Busytime Studio

    Jun. 2014 - Oct. 2020
    • Consulted on a full-stack rewrite of legacy a ASP.NET and SQL Server platform using MongoDB, Express, Angular, and Node.js microservices deployed to AWS.
    • Delivered responsive storefront websites for 30+ clients using JavaScript, HTML/CSS, and Bootstrap, balancing custom requirements and repeatable delivery.
    • Led cross-functional planning and coordination to deliver multiple client projects simultaneously while managing scope, priorities, and deadlines.

    • C#

    • ASP.NET

    • TypeScript

    • Angular

    • Node.js

    • Express.js

    • Bootstrap

    • HTML

    • CSS

    • JavaScript

    • MongoDB

    • Project Management

  • Full Stack .NET Developer (Contract)

    The Fulfillment Lab

    Sep. 2016 - Oct. 2016
    • Led a rewrite of an internal serialization/deserialization microservice utilizing React, and Node.js as part of a system migration.
    • Refactored internal tooling in ASP.NET MVC 5, C#, HTML/CSS/JavaScript, and MS SQL.
    • Planned subsystem migration steps to preserve 99.9%+ uptime during code transitions and minimize service disruption.

    • C#

    • ASP.NET MVC

    • TypeScript

    • React

    • Node.js

    • Next.js

    • HTML

    • CSS

    • JavaScript

    • SQL Server

  • Lead Developer

    Online Orders Now

    Sep. 2013 - Oct. 2015
    • Managed the upgrade deployment timelines for over 300 concurrent clients globally.
    • Deployed new payment processing integrations including First Data, Sterling, and Mercury by defining SOAP endpoints and consuming RESTful APIs.
    • Partnered with new vendors to expand POS technology support, doubling the number of supported platforms.
    • Defined the modernization road-map for the code-base, which drove a successful redesign initiative and future platform upgrades.

    • C#

    • WinForms

    • Windows Services

    • REST

    • SOAP

    • Web Services

    • WSDL

    • POS

    • Payment Processors

    • PCI-DSS

    • HTML

    • CSS

    • JavaScript

    • HCL Domino

  • Mobile App Developer

    Swartz Enterprises

    Oct. 2011 - Feb. 2013
    • Brainstormed ideas to generate mock-ups for mobile apps.
    • Designed and developed apps for iOS, and Android.
    • Created and published apps for mobile storefronts utilizing cross-platform frameworks including Unity.

    • C#

    • WPF

    • Unity3D

    • Photoshop

    • Blender

    • REST

    • JavaScript

Projects