Christian maps 12 stages to becoming a GTM engineer

Christian posted a 12 stage path he says he would work through if he had six months to become a GTM engineer. It starts at infrastructure and ends at AI systems, and the useful part is the ordering.

Christian

@coldemailchris

X

Most people spend the 6 months watching tutorials. Run a real campaign at every stage instead.

Stage one is cold email infrastructure, meaning secondary domains, Google and Microsoft inboxes, SPF/DKIM/DMARC, warm-up ramps and inbox rotation. Stage two is deliverability, with placement tests, Google versus Microsoft sending, MX record checks, shadow bans and bounce types. Stage three is TAM building off Apollo exports, Google Maps scraping, niche directories, Apify scrapers and account deduping. Stage four is enrichment and verification, including email waterfalls, catch-all verification, phone data and re-verification cycles. Stage five is qualification and signals, with AI qualification columns, ICP agents, hiring and funding signals and lookalikes.

The operational middle

Stage six is offers, front-end offers, free audits, samples, risk reversal and matching the offer to the segment. Stage seven is copywriting, and Christian puts a hard number on it, under 65 words, plus spintax, script frameworks, custom variables, opt-out lines and subject lines. Stage eight is sending and sequencing, naming EmailBison setup, campaign settings, sending windows, new-to-follow-up ratios and ESP splits.

Stage nine is testing, and it is the one that gates everything after it. Christian's version is 15 to 30 variants at once at 1,000 sends per variant, with losers killed fast. At the top of that range that is 30,000 sends before the data says anything, which is a volume question before it is a copy question. Stage ten is reply handling, webhooks into n8n, intent classification, Slack routing, sub-5-minute replies and CRM sync.

Stage eleven is calling and multichannel, parallel dialers, mobile data, email and phone off the same list and LinkedIn touches. Stage twelve is AI systems with Claude Code, covering GTM skills, context files, transcript pain extraction, client dashboards and reporting.

For people sending, this is one operator's curriculum rather than a result, and Christian's own closing instruction is the point of it. He says most people spend the six months watching tutorials, and that the alternative is to run a real campaign at every stage. Read at that angle, the list is less a syllabus than a sequence of things you need live sending volume to learn at all.