GTM & Operations Intern

About HappyStack

HappyStack is building the GTM engine for eCommerce SaaS. We partner with a small

number of category-defining software companies and help them turn GTM into a real,

repeatable revenue engine - owning everything from TAM definition and ranking to running

coordinated outbound and paid channels from one system.

We exist to help great founders and teams win. Instead of generic, plug-and-play software,

we custom-build a GTM operating system for each partner and align on outcomes through

long-term partnerships. We also invest directly in the businesses we work with when it

makes sense, giving us real skin in the game. Our ambition is to become the global GTM

operating system for eCommerce SaaS, bringing modern DTC growth playbooks into a

SaaS world that’s still far behind.

About the role

We’re looking for a high-output intern to sit at the heart of HappyStack’s go-to-market

engine.

This role is all about momentum: responding fast, booking meetings cleanly, keeping

calendars tight, and making sure interested prospects turn into actual conversations for our

partners.

If you get genuine satisfaction from booking meetings, keeping things organised, and moving

quickly with precision, this will suit you very well.

What you’ll do

Own inbound responses across all HappyStack partner campaigns

Respond to replies from founders and operators in a fast, clear, human way

Book meetings directly into partner calendars (multiple partners, multiple time zones)

Keep calendars clean, updated, and correctly labelled

Ensure the right prospect is booked with the right partner every time

-

Use AI tools to edit, personalise, and improve reply copy where needed

-

Spot errors, inconsistencies, or missing info and fix them without being asked

-

Flag issues early (calendar conflicts, broken links, poor copy, delays)

This is a hands-on execution role. You will be judged on speed, accuracy, and volume.

What we’re looking for

Ridiculous work ethic - you like being busy and getting through real volume

You enjoy booking meetings and see it as a win, not admin

-

Extremely detail-oriented (small mistakes drive you mad)

-

Comfortable working across lots of partners at once

-

Confident using AI tools (ChatGPT, copy tools, prompts) for writing and editing

-

Clear written communication - short, sharp, human responses

-

Organised, reliable, and calm under pressure

-

Sales-curious mindset (you want meetings to actually happen, not just be booked)Nice to have (not required)

-

Previous sales, SDR, or operations experience

-

Experience working with calendars, CRMs, or outbound tools

-

Interest in startups, SaaS, or eCommerce

What success looks like

-

Replies are handled quickly and cleanly

-

Calendars are accurate, full, and conflict-free

-

Partners trust you to run this without babysitting

-

Meetings show up and happen

-

Zero dropped balls

Why this role matters

This role is the last mile of our GTM engine.

Great targeting and copy mean nothing if meetings aren’t booked properly.

You’ll be directly responsible for turning interest into real conversations - and you’ll learn how

modern GTM actually works at scale.