Growth Intern (Summer 2026)

SellScale; San Francisco (CA); On-site; USD 45,000 - 65,000; Full time

Benefits offered by this job

Career growth

Learning opportunities

Dynamic team environment

Job summary

SellScale is seeking a Growth Intern in San Francisco to drive our marketing efforts for Selix, our AI sales agent. As a part of the team, you will create marketing assets, engage with social media, and assist in product events.

The ideal candidate will have prior experience in product marketing and show a strong interest in agentic AI. Enjoy a dynamic environment where you'll learn and grow with the team.

Career growth opportunities, unique insights into AI, and a fun cultural atmosphere await you!

Qualifications

• Prior experience in product marketing or similar.
• Comfortable with steep learning curves and wearing multiple hats.
• Strong interest in agentic AI and technology.

Responsibilities

• Help spread the gospel about Selix, our AI Agent.
• Own top-of-funnel activity.
• Create assets and decks for post-sales.

Skills

Product marketing

Content creation

Video editing

Agentic AI knowledge

Tools

Notion

Excalidraw

Zapier

HubSpot

Job description

"The company story is the company strategy." — Ben Horowitz

As a Growth Intern, you'll help spread the gospel about Selix, our AI Agent that helps companies run their outbound sales end to end.

You’ll jump into every corner of growth:

• Product Marketing — create assets and decks for post-sales and beyond
• Social Media — build the narrative around what we're building and why we're different (we're the AI SDR killer)
• Events — put on events for the team and the broader community
• Website — spruce up pages with our designer to tell our story
• SEO / AEO — write articles on the new insights we're uncovering about the space
• Top of Funnel — build marketing assets teams can actually use
• Video — make quick-cut videos we can post online

The bottom line: own top-of-funnel activity. Think "scrappy startup PMM," not "big-company content marketer."

What we're looking for

• Able to come into our San Francisco office at least 3 days a week
• Prior experience in product marketing, content creation, video editing, or similar — in a fast-paced startup environment (your own business, another startup, etc.)
• Comfortable with steep learning curves and wearing multiple hats
• Strong interest in agentic AI and technology
• Familiarity with tools like Notion, Excalidraw, Zapier, HubSpot, and the broader marketing stack is a plus

3 reasons to apply

Career growth — Tons of learning and real, relevant experience at a startup. Last year's summer intern landed an offer at McKinsey afterward.

Agentic AI knowledge — Agents are the next industrial revolution. You'll learn how they really work by marketing for them.

A fun team — It's the middle of the World Cup, and tech is buzzing during summer in SF. It'll be a blast.

• Quick 15-minute call with the founder
• Choose a marketing deliverable to submit (suggestions provided)
• Final round to talk through your deliverable + meet the team (30 min)

Our values

No matter what you know about growth, every team member operates within these values:

• The Wizard of Oz — Do something manually before automating it. (e.g., close one billboard in SF by hand, or edit a video yourself.)
• The Shipyard — Our unit of work at Selix. Everything has a "deliverable" — no theorizing.
• Full-stack marketer — Someone who can write a landing page, set up a HubSpot flow, cut a video, and think strategically about positioning — not someone who just writes briefs for agencies.
• Hackathon mentality — Get a lot done in a little time. (e.g., build an entire Q3 marketing strategy in a single Saturday afternoon.)
• Disinfect with sunlight — The first step to solving a problem is shining a light on it. (e.g., build a dashboard of our engagement and set a goal-line for where to get to.)
• We love schlep — We love the small, annoying problems. (e.g., edit one specific part of a video until it's just right.)
• Delta Force — A unit of A-players beats an army of B-players. Be the best at your craft.
• Beat the starting pistol — Don't wait for formality, completeness, or perfection to begin. It's about the inputs, not the outputs. (e.g., we have a big launch video coming — make the v1 in 2 hours.)
• Feedback is a gift — We take feedback seriously, and no feedback is too harsh for us to learn from.