
Callum Flack
Designer and engineer focused on product and web interfaces
callumflack
Cairns, Australia
Joined April 2026
Summary
Design engineer who ships products: Callum blends visual and interaction design with front-end engineering to close the gap between design vision and technical reality, repeatedly delivering prototypes and production-ready interfaces. callum+2
AI and personal data experiments: He has worked on consumer-facing AI products and personal-data-driven prototypes—most notably Vana's Portrait—exploring how AI and personal likeness data can be productised. callum+1
Builder and team lead with exit experience: He assembled and led Cleared's engineering team, designed and built the app from initial commit and stayed through the company's sale in 2022. callum
Independent maker and writer: Runs a personal agency and public portfolio, publishes long-form writing on creativity and systems (The Littoral Line), and maintains an active public archive of projects and code. netlify+2
Music collector and designer: Outside product work he has run vinyl labels and designed record covers, reflecting a long-standing interest in music and physical media. discogs