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I Am

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About Me

Hello! I'm Jimmy Chung.

  • Entrepreneur
  • Software Developer
  • Innovator
  • Web3

My aspiration is to make a positive impact on society and the world around me. How do I approach achieving this? Well, I strongly believe it all starts with the right attitude, as attitude, not aptitude, determines altitude. Adhering to this philosophy I strive daily to improve myself and others, and make a positive impact on society. I have strong interests in entrepreneurship, business strategy, finance,and the emergence of Blockchain and Machine Learning technologies. Most interested in working in fast-paced environments where accomplishments and progress are realized quickly, I strive to not only master the technical aspects of the technology sector, but also to fully embrace the industry from a business-minded perspective.

My keen interest in finance has also lead me to keep a watchful eye on global financial markets. This perspective has opened my eye to the ability for cryptocurrencies and blockchain technology to enable the unbanked to access financial services in which they do not have access to currently. With 1.7 Billion people currently without access to the financial system, economic opportunities are missed, socioeconomic mobility stagnates and starting a business or saving for education becomes simply impossible. Solving this problem with blockchain technology would ensure an economic boom while pulling millions out of poverty.

Typescript
90%
React.js
90%
Node.js
80%
HTML/CSS/Bootstrap/MUI
80%
iOS Development
60%
Android Development
60%
C
80%
Python
80%
Docker
70%
Kubernetes
70%
Ethereum/Solidity
70%
Golang
50%

Experience

Oct 2024 - Present

Nurau - Senior Software Engineer

  • Nurau is a conversational coach engaging front line managers with critical insights in real time, helping them take action and resolve issues when it matters most.
  • Our AI-powered coach utilizes advanced natural language processing (NLP) and emotional inference technology (EIT) to offer personalized and scalable coaching for all leaders.
  • Architected and implemented an enterprise-grade AI coaching system leveraging Langchain, featuring sophisticated prompt engineering, context management, and multi-language support for delivering personalized workplace guidance to managers
  • Developed a hybrid vector search system for Retrieval Augmented Generation (RAG) combining FAISS and Qdrant vector databases to enable context-aware AI responses, implementing custom similarity thresholds and metadata filtering for organization-specific document retrieval while improving retrieval times by 90%
  • Engineered an advanced LangChain prompt template system with granular control over AI personality, tone, and response formatting, including specialized templates for different conversation scenarios (suggestions, documentation summaries, challenge verification) and dynamic language adaptation
  • Built a scalable Django-based REST API with Django Rest Framework powering an AI coaching platform, implementing async/await patterns for optimal performance and handling concurrent user sessions
  • Engineered a sophisticated LLM orchestration system using Langgraph to manage complex conversation states and service routing.
  • Developed infrastructure using Make-driven automation and Docker orchestration, implementing comprehensive workflows for testing, translation management, and deployment across environments
  • Developed end-to-end testing suite using Playwright, covering critical user flows including authentication and core application features
  • Developed React single page application with custom hooks and styled components implemented throughout
Nov 2022 - Oct 2024

Chexy - Senior Full Stack Engineer

  • Architected payments system with ZUM rails and Payroc APIs, processing over $80 million annual TPV while ensuring PCI compliance
  • Developed React single page application with hooks implemented throughout
  • Employed TypeScript to elevate code quality, maintainability, and scalability by enforcing strong typing and catching errors early in development.
  • Leveraged Tailwind CSS extensively to develop and maintain highly responsive, modular, and visually appealing user interfaces for web applications.
  • Migrated to Next.js as the primary framework, ensuring seamless server-side rendering
  • Implemented Firebase Authentication, Cloud Functions, Cloud Load Balancing with Cloud Firestore NoSQL database
  • Integrated Plaid's identity verification solutions into our financial applications to streamline the onboarding process and enhance user authentication and fraud detection capabilities
  • Architected and developed a system which enabled credit reporting of rent payments to Equifax via the Metro2 format.
  • Deployment and configuration of Infisical (Secret Management Platform)
  • Implemented GCP Cloud Tasks to manage asynchronous task execution
  • Firebase cloud messaging and webhooks utilized for push notification system
  • Pursued robust automated testing with Jest, React Testing Library and Cypress
  • Developed custom k6 scripts to simulate real-world traffic and load scenarios
  • Adhered to CI/CD development practises by architecting deployment pipeline with CircleCI
  • Onboarded and mentored junior engineers
Dec 2021 - Nov 2022

Verizon Business - Software Engineer

  • Wholesale permissioned blockchain application on Hyperledger Fabric
  • Managing production workloads on Elastic Kubernetes Service and Amazon Managed Blockchain
  • Dockerized backend services using docker-compose with docker images stored in Jfrog Artifactory
  • Jenkins pipelines integrated with Ansible Playbooks to automate ETL processes and deployment of microservices
  • Created and managed AWS Route 53 health checks
  • Configured automated data loading processes with Java Spring Boot CronTriggers
  • Created snapshots and encrypted Amazon machine images (AMIs) of EC2 instances
  • Worked with AWS IAM to create new user accounts, roles, and groups
  • Implemented ETL pipeline with AWS S3 , Aurora Postgres, Apache Couch DB
  • Created stored procedures and indexes on Oracle DB with PL/SQL reducing query execution times by up to 90%.
  • Configured materialized views in postgres for infrequently updated, expensive data views.
  • Ensured observability with NewRelic and Splunk
  • Provisioned multi region AWS resources with Cloudformation stacks and stack sets
  • Bash and Powershell scripting
  • Deployed and configured multiple API proxies for both AT&T and Lumen with Apigee
  • Ensured observability with NewRelic and Splunk
  • Reduced user reported defects in the claims management system (CMS) by identifying root causes of backlogged bugs in React frontend and Java spring boot microservices.
  • Supported development team with Agile Scrum using Jira
May 2019 - Dec 2021

RideUp - Co-Founder & CTO

Frontend:

  • Developed React single page application with Redux state management, routing with React Router, React Hooks implemented throughout
  • Pursued robust testing with Jest, React Testing Library and Cypress
  • Authenticated users with Firebase Authentication,Stripe Connect facilitating payments
  • Twilio API,Google Places,Routes API implementation
  • Migrated codebase from Javascript to Typescript

Backend & Devops:

  • RESTful API with Node and Express complete with Mocha and Chai unit testing, GraphQL API implemented with express-graphql
  • Configured AWS S3 to store user files from Android, iOS and Web applications.
  • Migrated database from MongoDB to PostgresSQL
  • SSL/TLS encryption with Cloudflare CDN,Kubernetes certmanager
  • Deploying and managing microservices architecture with Docker and Kubernetes conjunction with Google Cloud Kubernetes Engine (GKE).
  • Ensured scalability with Horizontal pod autoscaling and Cluster autoscaling, utilized Nginx Ingress for load balancing
  • Cloudflare and NGINX ingress rate-limiting implemented to mitigate DDoS
  • Managed GCP IAM roles,projects and organizations.
  • Enabled realtime,bi-directional communication between backend and client with Socket.io
  • Adhered to CI/CD development practices with CircleCI & Bitbucket

Android:

  • Use of MVC design pattern
  • Properly implemented relative,linear and grid layouts
  • Minimized code duplication with Fragments

iOS:

  • Performed CRUD with Realm persistent database
  • Implemented userinterface with UIKit,MVC pattern
  • Utilized weak variables to avoid retain cycles due to automatic reference counting
Sep 2017 - Apr 2019

Queen's Student Investors Group - Analyst , Industrials

  • Evaluate domestic and global financial market in search of investment opportunities
  • Utilize Comparable Company and Discounted Cash Flow analysis to value industrial equities
  • Research vital financial information for fundamental and technical analysis using Bloomberg Terminals, Morningstar and Capital IQ platforms.
  • Present and pitch securities to the rest of the investment committee, outlining either a bullish or bearish projection based on our financial valuation, potential risk, as well as our short-term/long-term investment strategy.
  • Use of EDGAR and SEDAR systems to view company SEC/CSA filings, quarterly and annual reports
  • Provide monthly market updates and assess the performance of the portfolio
  • Maintained diversified personal portfolio comprised of US/Canadian/Asian Equities, Bonds, ETFs, REITs, Alternative Assets and Cryptocurriencies.
May 2018 - Oct 2018

Canada Create - Full Stack Web Developer

  • Designing, building, and implementation of client web applications utilizing MERN stack demonstrating strong proficiency with MongoDB, Express.js, React, Redux, Node.js
  • Server side rendered applications developed with Next.js and EJS
  • Refactored layout of client applications meticulously utilizing Bootstrap, SASS and CSS
  • Created MySQL scripts to insert, update, delete and query data
  • Deployed MERN applications on AWS EC2, setup ELB to enhance scalability and reduce latency
  • Configured AWS security groups
  • Managed AWS IAM roles to keep access keys and secret access keys secure
  • Designing, implementing, and consuming RESTful APIs
  • Extensive use of project management tools such as Jira and Git to increase team productivity and performance
Apr 2018 - Oct 2018

QGEM - Front End Developer

  • Utilized HTML, CSS, Javascript, Bootstrap and JQuery to develop responsive website for QGEM
  • Implemented userinterface with UIKit,MVC pattern
  • Made use of async and await in ECMAScript 2017 to implement asynchronous code
May 2017 - Aug 2017

Mount Sinai Hospital - Business Development & Web Development Intern

  • Utilized HTML, CSS, Javascript, Bootstrap and JQuery skills to enhance the UX/UI of the Sherman Health and Wellness Centre Website
  • Wrote MySQL queries for CMaRS web based clinician management and reappointment system
  • Configured MySQL Docker containers
  • AJAX techniques utilized for asynchronous web applications
  • Developed a new responsive website for the Five Star Catering (Hospital Catering Service)
  • Drafted strategic proposal for physician to physician secure messaging systems to be implemented at Mount Sinai and subsequently pitched solutions to the business innovation tea
  • Analyzed the business case for PPID (Positive Patient Identification) systems on smartphones
May 2016 - Jan 2017

Queen's Solar Design Team - Power and Photovolaics Engineer

  • Circuit design for a DC-compatible residential system optimizing efficiency
  • AC-subsystem integration for off-grid practicality

Endorsements

Get In Touch

Feel free to contact me for business opportunites or even just to grab a coffee!

Call Me

647-995-2663

Email Me

14jhhc@queensu.ca

Visit Me

Toronto, Ontario

2019 © Jimmy Chung