AI Startup Marketing Internship (Unpaid, With Training)
Are you looking for an internship that actually teaches you how modern startup marketing works? Want hands-on experience in SEO, GEO, social media, influencer outreach, PR, content marketing, and growth strategy while working directly with experienced startup marketers?
This internship is offered by GrowthExpertz, a startup marketing agency that has helped hundreds of startups launch, grow, raise funding, and scale. You'll work directly with GrowthExpertz founder Andrew Lee Miller, a 20+ year startup marketing veteran who has helped drive multiple startup exits and advised companies ranging from early-stage to venture-backed startups.
You'll receive direct mentorship, real ownership over projects, and exposure to the same marketing strategies used to help startups acquire customers, raise capital, and scale.
For this internship, you'll be embedded with one of our newest clients, Unstoppable, an AI dev tooling company that lets developers run multiple AI coding agents (Claude Code, Codex, and others) in parallel inside one environment, plus a broader suite of AI agents for building websites, managing outbound, and handling everyday knowledge work.
Rather than working on hypothetical projects or busywork, you'll gain hands-on experience helping grow a real, funded startup from the ground up.
Learn more at unstoppable.ai
The Internship
This is an unpaid, 3-month remote internship with a target start date of 08/25/2026. The internship includes extensive hands-on training from our CMO, Andrew Lee Miller, a 20+ year startup marketing expert based in San Francisco. linkedin.com/in/andrewstartups
We're looking for people who want to work hard, take ownership, and get things done. Upon successful completion of the internship there most likely will be a full-time job offer after, if you work hard.
What You'll Work On
You'll get real exposure across multiple channels, all tied to actual campaigns that drive developer signups, product adoption, and brand awareness. Depending on your skills and interests, you may work on:
Content & SEO/GEO
• Writing blog posts and technical articles targeting high-intent searches: AI coding agents, dev workflow tools, and competitor comparisons
• Researching keywords for both traditional search and AI search (ChatGPT, Perplexity, Google AI Overviews)
• Building content structured to get Unstoppable cited when developers ask AI which agentic coding tool to use
Social Media
• Creating and scheduling content for Unstoppable's official account and founder/exec accounts
• Drafting product education posts, industry commentary, founder story content, and user proof, etc...
• Light design work using AI tools and Canva
Influencer & Partnership Outreach
• Researching and building lists of developer and engineering creators with real, engaged audiences
• Drafting outreach messages and tracking responses
PR
• Building targeted journalist and podcast lists across developer tools, AI, and startup/tech beats
• Drafting PR pitches and HARO/Qwoted responses
• Supporting outreach to relevant podcasts
Developer Community & Platform Presence
• Researching where developers are actually talking about agentic coding tools (Reddit, Hacker News, GitHub, X, Discord)
• Helping monitor and engage in relevant communities and threads
• Supporting keyword and positioning research for competitor-comparison landing pages
Analytics & Reporting
• Tracking performance across channels using GA4, Google Search Console, and social platform analytics
• Contributing to weekly KPI reporting
This internship is designed for you to explore different channels, find where you add the most value, then go deep, with real coaching every step of the way.
Who We're Looking For
Someone who wants to learn by doing. Someone who wants to help build a marketing engine from day one. Someone who doesn't need their hand held once they understand the goal.
You should have:
• Full-time availability ~30 hours/week
• Currently pursuing a degree in marketing/a related field or recently graduated
• Comfortable working remote and managing your own time
• Ability to work autonomously with little supervision
Bonus points for:
• Prior internship or marketing experience
• Experience with AI tools and prompting, especially AI coding tools (Cursor, Claude Code, Copilot, etc.)
• Interest in dev tools, B2B SaaS, or the AI/agentic space
What You'll Get
• Hands-on training directly from our fractional CMO
• Exposure to real startup operations, not busywork
• Experience building B2B/dev-tool campaigns from scratch
• Fully remote, flexible schedule
• Direct involvement in shaping the marketing foundation of a funded AI startup
• A standout resume project with measurable impact
How to Apply
Send a short note to justin@growthexpertz.com explaining why you want to work with Unstoppable and what marketing channels you're most excited to learn, along with your resume or LinkedIn profile.
Applications without a note will not be considered.
