Calvin Koepke
Verified Expert in Engineering
Software Developer
Boise, ID, United States
Toptal member since October 6, 2017
Calvin is a full-stack engineer with over a decade of experience in front-end and back-end development. He specializes in React and Tailwind CSS but has a strong understanding of underlying languages such as TypeScript, Node.js, CSS, SCSS, PHP, and Go. Calvin has led small teams of engineers and worked independently on projects as a solo developer.
Portfolio
Experience
- React - 6 years
- Tailwind CSS - 4 years
- TypeScript - 4 years
- Jest - 2 years
Availability
Preferred Environment
TypeScript, React, Tailwind CSS, Jest, Visual Studio Code (VS Code), Webpack, JavaScript
The most amazing...
...project I've led was a complete front-end overhaul using React and Tailwind CSS for a large-scale decentralized exchange on the Cardano blockchain.
Work Experience
Lead Front-end Engineer
SundaeSwap Labs, Inc
- Led a small team to develop a library of reusable components to scale multiple product verticals within the company's suite.
- Built an open-source TypeScript SDK that allows anyone to build compliant transactions for the decentralized exchange (DEX) that are then settled on the Cardano blockchain.
- Integrated multiple internally-maintained npm libraries into both of our product applications and their adjoining test suites based in Jest.
Founder and Chairman of the Board
Kora Labs
- Started a Cardano NFT protocol that acts as a naming standard for users' wallets. Each unique name is resolved, managed, and owned as an NFT that the user purchases.
- Marketed and designed the ADA Handle—adahandle.com—website.
- Operated as the company's chairman of the board, which was formed to manage the decentralized protocol, ADA Handle. Organized team and board meetings and ensured proper accountability for executives.
Senior Front-end Engineer
Finder
- Developed a complex WordPress website with hundreds of thousands of content posts, including a highly customized Gutenberg plugin that allowed publishers to interact directly with external in-house APIs.
- Built the beta version of a native Apple and Android app through the React Native framework that ingested content from the WordPress site and integrated an internal ledger for tracking crypto storage.
- Helped build sophisticated testing scaffolding for the many Gutenberg blocks within the large-scale WordPress application.
Owner | Developer
Freeshifter
- Built a performant and responsive website for Blank on Blank, converting a high-profile design into a functional and flexible website.
- Developed open-source themes for the WordPress community and ran a front-end engineering community.
- Created highly performant WordPress websites, including hosting and configuration via DevOps.
WordPress/React Developer
Athletics (via Toptal)
- Built and integrated a multisite infrastructure and ACF setup.
- Developed a GatsbyJS front end using styled components, animations, and components.
Senior Web Engineer
Zeek Interactive
- Created high-scale WordPress websites.
- Contributed to company open-source projects.
- Built performant front-end code.
- Led the development of enterprise-level projects.
Front-end Engineer
Rainmaker Digital
- Improved an internal codebase through coding a configurable, drop-in solution—saving our internal development team 50 hours a year in repetitive tasks.
- Identified, suggested, and implemented new technologies and tools into our workflow that resulted in 300% increased efficiency and maintainability.
Product Designer | Developer
The Audience Awards
- Redesigned, developed, and documented a new company brand across the site.
- Designed and detailed an internal style guide, utilizing Atomic Design principles, doubling the production rate of backend developer tasks and implementations toward deployment.
Experience
Startups for the Rest of Us
https://www.startupsfortherestofus.comGenesis Starter Theme
https://github.com/cjkoepke/genesis-starter-themeGenesis Responsive Menus
https://github.com/copyblogger/responsive-menusGenesis Simple FAQ
https://github.com/copyblogger/genesis-simple-faqSkills
Libraries/APIs
React, Node.js
Tools
Gulp, Adobe Photoshop, Webpack, GitHub, NPM, PhpStorm, Sketch
Languages
CSS, PHP 7, PHP, CSS3, TypeScript, JavaScript, HTML
Frameworks
Genesis Framework, Tailwind CSS, Jest, Next.js, Laravel
Platforms
WordPress, Visual Studio Code (VS Code), Cardano
Paradigms
Functional Programming, Object-oriented Programming (OOP)
Storage
MySQL, MongoDB
Other
WordPress Plugins, WordPress Themes, Gatsby, Atomic Design, Styled-components
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