Founding Growth Lead

Mainline is building a consumer-grade perps platform for tradfi traders in emerging markets. We’re replacing legacy broker onboarding friction, opaque execution, delayed withdrawals and hidden restrictions with one-click signup, transparent execution, instant withdrawals and unrestricted 24/7 trading. We’re backed by leading early-stage VCs (Nebular, Rerail) and led by founders bridging tradfi (IG.com) and defi (Lighter.xyz).We’re looking for a hands-on Founding Growth Lead to own growth experimentation and build the foundations of our growth function. This is a zero-to-one role: you’ll work directly with the founders to launch and iterate experiments quickly, identify repeatable distribution loops, and build the team and systems around what works.Scope:Hands-on growth experiments: Design, launch and evaluate experiments across paid, creators, affiliates, partnerships, referral, community, lifecycle and other channelsDistribution discovery: Identify which channels, markets and customer segments can produce repeatable, scalable acquisitionBuild the machine: Establish tracking, reporting, workflows, automations, tooling and AI-assisted systems to increase experiment velocityExecution: Personally take early experiments from idea to live; write briefs, build landing pages, run ads & outreach, analyse funnels and iterate quicklyTeam building: Identify where specialist support or full-time hires are justified; recruit and manage freelancers, agencies and local operators as neededMarket launches: Help turn early market signals into focused launch plans, including local channel, content, creator and partnership requirementsIdeal profile:Exceptionally broad, hands-on growth operator with experience across multiple acquisition channels and the first-principles thinking to crack othersStrong bias toward shipping, testing and learning rather than planningHas built or materially scaled growth at fintech, trading, crypto, consumer internet or another highly competitive categoryEnergised by working directly with founders in a fast-moving, ambiguous environmentHighly analytical, but equally comfortable with creative, copy, tooling and executionUses AI aggressively to increase research, production and operational leverageKnows what to execute personally, what to automate and what to delegateHas hired and managed freelancers, agencies or specialist growth talent