Mingle Li

Software Engineer

• #eMoneyProud

Associate Software Engineer

eMoney Advisor

• 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 Bulk File Admin application and completely rewriting 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 RabbitMQ microservices abstraction library, 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 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 database, bridging the product-developer gap and empowering cross-functional teams from engineers to product owners.

• c#
• blazor
• sql
• aws

Backend Software Engineer Co-op

eMoney Advisor

• Transformed bulk-file financial data importers, processing 1+ billion rows daily, from on-premise servers to AWS cloud infrastructure and C# microservices, achieving 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

iOS Software Engineer Intern

Toast, Inc.

• 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

Full-Stack Software Engineer Co-op

Zentility, Inc.

• 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

Web Developer

Freelance

• Leverage WordPress to design, create, and maintain mobile-responsive sites for numerous podcast, nonprofit, medical, and entrepreneurial businesses.
• Communicate with customers to clearly establish requirements and obtain feedback to ensure full satisfaction with the end product.
• Showcase: Newton Wellesley Primary Care, Wayland Personal Physicians, Vet Valet, Women of Wayland Podcast, Yamini Ranjan

• elementor
• html
• css