Full-Stack Growth Builder at Joinfleek.com
Location
london, england
Job Type
Full-time
Category
Engineering
Posted
June 29, 2026
Job Title
Full-Stack Growth Builder, Retention & Lifecycle
Company Description
Joinfleek.com – Series B fashion-tech marketplace backed by a16z and Y Combinator
Job Description
Join a high-velocity team reinventing the secondhand supply chain. As a Full-Stack Growth Builder, you will architect AI-driven CRM systems and lifecycle strategies from the ground up. You’ll own the entire retention engine, building dynamic tools and experimentation frameworks that move beyond static journeys to drive measurable, causal growth for thousands of global resellers.
Location
London, UK
Why this role is remarkable
- Direct impact on sustainability by fixing the broken global supply chain for secondhand fashion, already saving 9 million items from landfills
- Work at a hyper-growth Series B startup that has raised ~$50M from premier investors including Andreessen Horowitz (a16z) and Y Combinator <...