Calvin Froedge
Founder at Marhelm
Panama
Summary
👤
SeniorCalvin Froedge is a founder and full‑stack software engineer with 15+ years building high‑performance, user‑focused web applications and interfaces using React, Webpack, and GraphQL. He has launched and sold multiple businesses since his teens, founded Tennessee’s first major hackathon, and architected systems that processed millions in transactions across thousands of projects. Calvin’s consulting work spans startups to enterprise—internationalizing Hilton’s reservation interfaces, designing billing systems that converted PayPal subscriptions to Stripe for scale, and delivering React/Redux frontends across healthcare, ecommerce, and blockchain domains. He also contributes to open-source UI work such as the BitShares reference wallet, and combines product instincts with deep hands‑on engineering and security-minded problem solving. Based in Panama, he now runs Marhelm, a subscription analytics service for energy and maritime markets, where he’s scaled initial revenue with low churn while planning targeted expansion. An outdoorsman who thru-hiked the Appalachian Trail, he pairs tenacity and curiosity with pragmatic technical leadership.
15 years of coding experience
8 years of employment as a software developer
English, Spanish, javascript, python, php, clojure, c++, bash, sql, r
Stackoverflow
16,213reputation
2.4mreached
125answers
57questions
html
top-1%
css
top-5%
docker
top-5%
bash
top-5%
javascript
top-1%
Github Skills (20)
javascript10
web-application10
user-interface10
webapp10
html10
react10
bash9
css9
docker9
wallet8
blockchain8
salesforce6
vim6
php6
polyfills6
Programming languages (5)
Github contributions (5)
bitshares/bitshares-ui
Sep 2017 - Jan 2019
Fully featured Graphical User Interface / Reference Wallet for the BitShares Blockchain
Role in this project:
Front-end Developer
Front-end DeveloperContributions:59 commits, 39 PRs, 64 pushes in 1 year 4 months
Contributions summary:Calvin primarily contributed to the user interface of the BitShares UI, focusing on improving user experience and functionality. Their commits involve refactoring and enhancing components related to settings, exchange input, and notifications. The user also addressed specific issues, like the handling of incognito mode and the display of withdrawal messages, aligning the UI with user needs.
user-interfaceblockchain-walletbitshares-uigraphical-user-interfaceweb-app
calvinfroedge/node-jspdf
Nov 2014 - Apr 2016
Contributions:8 commits, 3 PRs, 3 pushes in 1 year 5 months
javascriptnodejsjspdf
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