Specification · 01 / 09
Outbound
You own this if the sending infrastructure is yours: who gets targeted and on what criteria, which channels the message goes out on, and whether it lands in an inbox at all. Domain warmup, bounce rates, and inbox placement are your problem, not someone else's.
What proves it: a motion you can describe end to end with the numbers at each step, and a specific deliverability problem you diagnosed and fixed. Anyone can say they ran sequences. Fewer can say what their reply rate was and why it moved.
Specification · 02 / 09
Enrichment & Intelligence
You own this if the team knows things about accounts that no vendor sold them. You built the waterfall, chose which providers to fall back to, or wrote the prompts that read a company's site and decide something useful about it.
What proves it: a coverage or accuracy figure before and after your work, and an account of what you did when the model was confidently wrong. The second half is the part that separates people who ship this from people who demo it.
Specification · 03 / 09
RevOps
You own this if changing how a lead gets routed, scored, or staged means changing something you built. The CRM's behaviour follows from rules you wrote, and the data model is one you can defend.
What proves it: a routing or lifecycle change you made under load, and a story about a rule you deliberately did not build because the process behind it was the actual problem.
Specification · 04 / 09
Data Engineering
You own this if data arrives where the GTM team needs it because of infrastructure you maintain — pipelines, syncs back into operational tools, models in the warehouse. It runs on a schedule and it pages someone when it fails, and that someone is you.
What proves it: a pipeline still running months after you built it, and what you did the time it silently delivered wrong data. Maintained infrastructure and a one-off export are different jobs.
Specification · 05 / 09
Analytics
You own this if leadership's picture of the funnel comes from something you built, and if you are the one who turns a vague question into a defined measurement before building anything.
What proves it: a decision that changed because of an analysis you ran, and an occasion where you told a stakeholder the data could not answer their question as asked.
Specification · 06 / 09
Growth
You own this if conversion between funnel stages is your responsibility — the tests, the activation flows, the product signals that say someone is ready to talk to sales.
What proves it: an experiment that failed and what you concluded from it, plus evidence you understand sample size well enough to know when a result was noise.
Specification · 07 / 09
Lifecycle Marketing
You own this if the nurture and campaign machinery inside the marketing platform is yours: what fires, on what trigger, and how a contact moves between programs.
What proves it: a nurture program you rebuilt rather than extended, and a clear account of which rules live in the marketing platform versus the CRM and why you drew the line there.
Specification · 08 / 09
Internal Tools
You own this if the GTM team uses software you wrote — an app, a portal, an agent that does part of somebody's job. Real users, real bug reports, real requests for changes.
What proves it: adoption you can quantify, and a feature you removed after watching people not use it. Shipping internal software is mostly the second thing.
Specification · 09 / 09
Systems Admin
You own this if the stack keeps working because you keep it working: permissions, configuration, hygiene, the requests that come in when a tool behaves strangely.
What proves it: hard to demonstrate on its own, which is the honest point. On its own this domain rarely reads as GTM engineering — it reads that way when it sits next to a domain where you build something new.