About the job
About Spearbit & Cantina:
Established in 2021 by a team of former Solidity engineers from the Ethereum Foundation, Spearbit is dedicated to addressing the security challenges within Web3. Our founders were instrumental in creating the leading blockchain programming language and securing the largest smart contract, safeguarding assets valued at over $160 billion.
We are currently developing Cantina — the ultimate 'GitHub for Security' — which links security researchers with projects in need of specialized expertise. The Cantina security platform has been the backbone for significant competitions and serves many leading projects in the Web3 space. Our platform facilitates collaborative security reviews, both public and private security competitions, bug bounty programs, incident response, and features an AI code analyzer.
Much like the emergence of cloud-security startups, Cantina aspires to be the definitive code-security platform of the future.
The Opportunity:
We are seeking an innovative AI Marketing Intern who possesses a systems-thinking mindset, is eager to experiment, and is enthusiastic about contributing to the evolution of marketing automation.
This is not your typical marketing internship.
You won’t spend your days scheduling social media posts or drafting blog articles.
Instead, you will collaborate closely with the Head of Growth to design and experiment with AI-driven workflows that:
Identify high-intent prospects
Automate research and enrichment processes
Enhance outbound marketing systems
Create smarter marketing automation solutions
Test innovative AI-driven customer acquisition strategies
You will gain firsthand experience in building a modern, AI-native go-to-market engine from the ground up.
If you have a passion for AI tools, a continuous desire to experiment, and seek genuine ownership of your work, this role is tailored for you.

