Carl Barrdahl
Founder & CEO at Zephyr Valley
Greater Gothenburg Metropolitan Area Sweden
Summary
👤
Senior🎓
Top SchoolCarl Barrdahl is a founder and CEO with 13 years of hands-on experience building full-stack web apps, smart contracts, and AI-powered products. He currently runs Svarar Alltid, an AI receptionist that captures and qualifies missed calls for Swedish tradespeople via SMS, and develops Curator Studio, a permissionless capital allocation protocol while contributing to Ethereum standards (ERC-8185/8186). Comfortable across TypeScript, Next.js, React, Solidity and SIP/VoIP, he blends product-focused engineering with decentralized infrastructure and realtime voice integrations. His background spans startups and enterprise projects—from Gitcoin and Ticketmaster to building real-time restaurant and IoT systems—demonstrating a knack for project-based learning and shipping pragmatic solutions. Notably, he builds open-source tooling like a SIP-to-WebSocket voice gateway (sipstream) to bridge telephony with LLMs, reflecting an unusual crossover between telecom and web3. Based in Oregon and Sweden, he pairs entrepreneurial initiative with deep implementation experience across grants platforms and public goods funding.
13 years of coding experience
9 years of employment as a software developer
Linnaeus University
Swedish, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (152)
hybrid10
solidity10
eas10
browser10
react-framework10
compiler10
static-site-generator10
typescript10
ssg10
hardhat10
vercel10
nextjs10
server-rendering10
react10
javascript9
Programming languages (11)
Github contributions (5)
carlbarrdahl/reef-payment-api
Oct 2021 - Dec 2021
Web Payment API for Reef Chain built for DeFi & Cross-Chain Interoperability Hackathon.
Contributions:33 commits, 2 PRs, 17 pushes in 1 month
reefapiethereumidoblockchain
gitcoinco/allo-starter-kit
Apr 2024 - Sep 2024
Contributions:6 reviews, 34 PRs, 200 pushes in 4 months
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