Rachel Black
Founding Developer Evangelist at Cosine
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolRachel Black is a founding developer evangelist and former founder with 11 years of experience turning blockchain and developer-focused ideas into shipped products and engaged communities. She co-founded HaloFi, growing it to 4k monthly active users and helping the community save over $5M in stable tokens, and has repeatedly been an early adopter and advocate for Celo, Polygon and DeFi stacks. Her background spans full-stack development, developer relations, fundraising and 0→1 product creation across startups and platform companies like Twilio and Concordium. Comfortable building multicultural teams and technical content, she translates complex crypto primitives into accessible developer experiences and integrations. Based in London, she combines hands-on engineering roots with proven community growth instincts and a knack for finding platform-product fit in emerging ecosystems.
11 years of coding experience
9 years of employment as a software developer
Bachelor’s Degree, Geography, Bachelor’s Degree, Geography at University of CambridgeWoodhouse College
Stackoverflow
346reputation
3kreached
2answers
3questions
Github Skills (75)
windows10
linux10
js10
nodejs10
command-line10
javascript9
blockchain9
ethereum9
react9
jekyll9
macos9
truffle9
html8
chakra-ui8
sdk8
Programming languages (9)
Github contributions (5)
RachBLondon/dapp-store
Oct 2019 - Dec 2019
Contributions:50 commits, 15 pushes, 1 branch in 2 months
foundersandcoders/workshop-api
Feb 2016 - Apr 2017
Contributions:48 commits, 2 PRs, 44 pushes in 1 year 2 months
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