You will own the analytical engine for a marketplace tripling annually, sitting at the intersection of marketing and strategy. By building attribution frameworks from scratch, you'll optimize spend across influencer, paid, and organic channels. This is a high-impact role where your insights directly determine how millions in capital are deployed to scale global circular commerce.
Senior Growth Analyst at Joinfleek.com — Series B AI-driven marketplace
Join Fleek, the a16z-backed B2B marketplace revolutionizing the $350B secondhand fashion industry. As a Senior Growth Analyst in London, you won't just build dashboards; you'll own the analytical engine behind a company tripling in size year-over-year. You will build attribution frameworks from scratch, run incrementality tests, and directly influence how millions in spend are allocated across global channels. If you’re a SQL expert who thrives on turning messy marketplace data into high-stakes commercial strategy, this is your chance to build the AI-native backbone for circular commerce.
Overview
Why this role stands out
Company
Joinfleek.com - a16z-backed B2B marketplace digitizing the secondhand fashion supply chain with AI.
Responsibilities
What you will do
- Design and operate sophisticated attribution models (MMM, MTA, and incrementality) to evaluate performance across influencer, affiliate, and paid social channels.
- Analyze full-funnel metrics including CAC, LTV, and payback periods to provide actionable recommendations that guide daily spend and long-term growth strategy.
- Partner with engineering to build robust data foundations, ensuring clean tracking via UTMs, pixels, and events to power your analytical frameworks.
Candidate profile
Who this is a fit for
- 4–7+ years of growth or marketing analytics experience, specifically owning attribution and channel performance at a fast-scaling consumer or marketplace company.
- Expert-level SQL skills with the ability to independently pull and transform large datasets, ideally complemented by Python or R for statistical modeling.
- Proven track record of translating complex data into clear narratives that drive executive-level decisions, focusing on business outcomes rather than just reporting.
What makes it remarkable
Why this role is remarkable
- Immediate financial impact: a junior analyst recently identified £100k in monthly savings through basic attribution—you will have the seniority and tools to unlock significantly more.
- Massive scale and backing: Joinfleek.com has raised ~$50M from top-tier VCs like a16z and Y Combinator, saving over 9 million items from landfills since 2022.
- Unique data challenges: Unlike standard SaaS, you will model complex marketplace dynamics where every item is unique and inventory is graded by proprietary AI models.
Jack & Jill
How Jack & Jill work together
About Jack & Jill
Meet Jack
Jack gets to know what you are great at, what you want next, and makes sure Jill considers you for the right opportunities.
How does this work?
Jack's an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack's network.
If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.