Erwann Lefevre

lagrowthmachine.comGrowth & GTM Engineer, La Growth Machine

I work as a Growth & GTM Engineer at La Growth Machine, where I run outreach, CRO and acquisition — and spend most of my time turning the parts that work into something repeatable. I build GTM System, an open-source library of Claude skills for the go-to-market motion: sourcing and list building, campaign copy, reply handling, and the analytics that tell you which of it actually produced revenue. My skills encode the operator judgment underneath that work — the thresholds I really use, the checks that catch a bad list before it ships, and the failure modes I've hit often enough to write down.

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Skills by Erwann

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Outreach0

Erwann Lefevre

lagrowthmachine.comGrowth & GTM Engineer, La Growth Machine

Multichannel campaign builder

Use this skill when someone needs a complete outbound sequence written — every touch across LinkedIn and email, not a single cold email. Produces three distinct angles to choose from, then the full sequence with each message ready to send, calibrated to the campaign type and channel mix and self-checked against a copywriting bar before it's handed over. Trigger phrasings: "write me a campaign", "build a sequence", "multichannel campaign", "cold outbound sequence", "social selling sequence", "sequence the people who engaged with our post", "webinar follow-up campaign", "LinkedIn and email sequence", "rewrite this campaign".

Prospecting0

Erwann Lefevre

lagrowthmachine.comGrowth & GTM Engineer, La Growth Machine

Won-deal ICP finder

Use this skill when someone wants to know who actually pays them — auditing closed-won deals to derive a proven ideal customer profile instead of an aspirational one, then building a look-alike target list from it. Produces a revenue-ranked deal table, two to four named ICP archetypes with searchable criteria, and a ranking of the acquisition sources that produced the money. Trigger phrasings: "audit my biggest deals", "which customers made us the most money", "analyse my closed-won", "what's my real ICP", "find more customers like my best ones", "look-alike accounts", "revenue by account", "which channel produced our best deals", "ICP refresh before planning".