• Designed and developed a stock portfolio manager web application, with the backend on Digital Ocean Compute, and database on Digital Ocean MySQL.• Allowed users to upload files (such as images and spreadsheets that are relevant to their investments), using Amazon AWS S3 buckets storage, and Amazon IAM policies for security and permission management.• Resolved issues related to spam sign-ups on our main website, by adding CloudFlare authentication.• Developed a main product website with the frontend in React, TypeScript, HTML / CSS. • Implemented custom web routing using react-router-dom for the frontend, and Apache HTTP Server for the web server.• Simplified dependency management for React with Node Package Manager (npm).• Sped up performance for portfolio calculations on the frontend, by using JavaScript with promises to asynchronously update whichever ticker updated first on the backend. (The backend was also async, using PHP multi_curl for multi-threaded HTTP requests, to fetch data used in async calculations.)• Developed a feature in PHP (backend) and TypeScript (frontend) to let users automatically be notified of new company filings (from SEC.gov) for companies in their portfolio, via sec-api.io• Created a social feature to allow users to follow each other, and view (and comment on) each others’ public posts. Automatic notifications of new posts were accomplished by SMS via Twilio, and by email via SendGrid.• Developed an “earnings calendar” feature, which creates a visual calendar of upcoming earnings dates..• Greatly reduced the amount of time lost to debugging by developing daily automatic integration tests and unit tests, for all core features via Cypress.io.• Added a way to accept subscription payments with Stripe.• Collaborated with HighCharts support in order to get bugs fixed in their 3rd party charting software, so that I could present my chart visualizations exactly as desired.

Responsibilities:- Collaborate across departments to make websites, web apps, and tools- Take ownership of projects and keep them moving- Find performance wins on our own webserver (and in code)- Iterate marketing campaigns