about & career

Hi there!

Yes, Mingle is my real name. Yes, I like to mingle.

I'm a software engineer based in Massachusetts. I graduated from Northeastern University, and these days my work is mostly cloud infrastructure and full-stack applications.

Outside of work, I don't touch much software. I'm usually:

  • Playing Rocket League
  • Reliving the glory days of Mineplex
  • Playing percussion in orchestra
  • Getting on the table tennis or pickleball court
  • Dabbling in electronic music production
  • Slowly working on my Chinese
about-me.json
{
"name": "Mingle Li",
"location": "Massachusetts",
"school": "Northeastern University",
"graduated": true,
"videoGames": ["Rocket League", "Minecraft"],
"peakRank": "GC1",
"sports": ["table tennis", "pickleball"],
"instrument": "marimba",
"personalityType": "ESFJ",
"maxPiazzaContributions": 1038
}

Work experience

Will this matter when AI takes over all of our jobs? 🤔

eMoney Advisor

eMoney Advisor

Software Engineer

Dec 2025 - Present
  • #eMoneyProud

Associate Software Engineer

Jan 2025 - Dec 2025
  • Led critical AWS cloud infrastructure initiatives, including pioneering new Step Functions design with JSONata, establishing secure on-premise to AWS connectivity using IAM Roles Anywhere/CA certificates, and connecting Windows SMB shared drives to Linux Docker containers via Octopus deployments.
  • Spearheaded full-stack modernization efforts by developing a Bulk File Admin application and completely rewriting a legacy ASP.NET WebForms monolith UI using latest-gen Blazor technology, including dynamic LINQ query builder UI components.
  • Architected enterprise-wide developer productivity solutions, including a RabbitMQ microservices abstraction library, a HashiCorp-to-AWS Secrets Manager migration with shared libraries reducing code duplication across teams, and fixing critical dependency injection patterns in microservices.
  • Won 1st place in the company AI Hackathon by architecting "Bulkie," an AI-powered virtual teammate using AWS Bedrock (RAG, MCP Action Groups, guardrails), Claude Sonnet, and OpenSearch Serverless to automate bulk file validation, generate data visualizations with Python/matplotlib, analyze PRs, and unify knowledge retrieval across Jira/Confluence/on-prem databases.
  • c#
  • blazor
  • sql
  • aws
eMoney Advisor

eMoney Advisor

Backend Software Engineer Co-op

Jan 2024 - Aug 2024
  • Transformed bulk-file financial data importers, processing 1+ billion rows daily, from on-premise servers to AWS cloud infrastructure and C# microservices, achieving a 50% reduction in processing time (2.6 hrs vs 5.2 hrs) and 85% cost savings.
  • Engineered a concurrent, thread-safe data reconciliation process, retrieving account and transaction data for 140,000 clients in just 2.3 minutes, ensuring rapid access to updated data.
  • Researched, diagrammed, and implemented a robust flow for handling failed data validation post-ETL using AWS Step Functions task tokens, EventBridge, and RabbitMQ.
  • c#
  • aws
  • postgres
  • python
Toast

Toast, Inc.

iOS Software Engineer Intern

Jun 2023 - Aug 2023
  • Designed and constructed the "Favorite Order" feature for the Local by Toast iOS app, allowing users to mark orders as favorites for convenient reordering.
  • Identified and resolved multiple UIKit-SwiftUI interoperability bugs across multiple iOS versions, enhancing app stability and user satisfaction.
  • swift
  • combine
  • uikit
Zentility

Zentility, Inc.

Full-Stack Software Engineer Co-op

Jan 2023 - May 2023
  • Developed a scalable Excel bulk importer API, capable of ingesting thousands of meters in seconds across various commodities, using Java generics, interfaces, and best practices to ensure reusability for other microservices.
  • Architected a data stack ranking page that generates dynamic SQL queries with user-defined group-by and filter clauses, providing flexible insight into energy use.
  • Implemented server-side datatable pagination with caching using Angular Akita and Redis, enabling seamless navigation through datasets with over 100,000 records.
  • angular
  • spring boot
  • mysql