Senior Full Stack Engineer at Fleek

Can you help us fix the world’s most broken supply chain? The fashion industry produces over 100 billion garments a year. 60% end up in landfill — not because people don’t want these clothes, but because the supply chain for getting secondhand fashion from donation to resale is completely offline, manual, and broken. Fleek is fixing this. Our mission is to make secondhand the first choice. We’re building the infrastructure powering the global secondhand clothing trade — through a B2B marketplace and the AI systems digitising the supply chain behind it. Through Fleek, vintage stores, online resellers, and retail buyers source graded secondhand inventory directly from wholesalers and rag houses across multiple countries. Our key enabler is FleekSort — an AI model fine-tuned on secondhand fashion — that can grade, price, and categorise items with just a photo, turning what has historically been an opaque and manual trade into a structured, searchable, and tradable global inventory layer. Since 2022, we’ve saved 9 million items from landfill and tripled in size year-on-year. We’ve raised ~$50M from a16z, Y Combinator, Burda Principal Investments, HV Capital, and others, and have recent