Casco

Autonomous security testing for web apps, APIs, cloud, and AI systems

Growth Engineer

$180K0.01% - 0.25%San Francisco, CA, US
Job type
Full-time
Role
Marketing
Experience
3+ years
Visa
US citizen/visa only
Skills
Software Security, Marketing design
Connect directly with founders of the best YC-funded startups.
Apply to role ›
Rene Brandel
Rene Brandel
Founder

About the role

We are looking for a Growth Engineer to design, build, and scale our growth engine. You will treat growth like a video game, constantly experimenting to get the highest score. You have the technical chops to wire together agents and APIs, the marketing instincts to convert a deeply skeptical security audience, and the AppSec maturity to communicate with credibility.

What You'll Do

  • Own the Growth Engine: Architect and wire the automation layer (APIs, webhooks, LLM agents) that turns product triggers, like a completed pentest, into programmatic upsells.
  • Do Things That Don't Scale: Hustle manually to validate new channels and tactics first. Once a playbook proves it drives high-quality traffic, write the code to automate and scale it indefinitely.
  • High-Tempo Experimentation: Rapidly ship, measure, and iterate on campaigns across HackerNews, Reddit, and LinkedIn to compound user acquisition.
  • Technical Chops + Marketing Instincts: Write the scripts necessary to stitch our systems together, and the copy required to convert security engineers.
  • AppSec Maturity: Move fast and break things in the automation layer, but possess the industry context to never compromise user trust, privacy, or brand reputation.

What We're Looking For

Must-Haves

  • Excellent communicator: Strong writing, researching, and communication skills. You can craft copy that resonates with a technical audience
  • Development experience: Not necessarily in a formal engineering role, but enough to vibecode your own growth automations and stitch systems together
  • Technical audience expertise: Experience targeting security and development teams as customers, or writing for deeply technical audiences
  • Campaign experience: Hands-on experience running email campaigns, GTM campaigns, and sales enablement programs

What This Role IS NOT

  • Death by PowerPoint: You won't be building pitch decks to get committee approval for minor experiments. We bias toward action.
  • Brand Bikeshedding: You won't spend weeks debating font weights or logo placements.
  • Vanity Metrics: We don't celebrate "impressions." We care about pipeline, product usage, and revenue.
  • Vendor Management Hell: You won't spend your days evaluating bloated enterprise marketing software. You'll build leaner, faster systems yourself.

What We Offer

  • San Francisco based: Work from our SF office.
  • Competitive Compensation:
    • Base salary: $180,000
    • Equity package with high growth potential
  • Actual Impact: Your work directly shapes how we acquire and grow our user base.
  • Learning Opportunities: We support your growth with a budget for conferences, books, and tools.
  • Smart Colleagues: Work with a team of ex-AWS engineers and security experts who are genuinely excited about what they build.

About the interview

  • Quick chat with a founder (30 minutes) - We'll talk about your experience with growth engineering and what excites you about this space
  • Technical discussion (45 minutes) - Walk us through a growth experiment or automation you built and the decisions behind it
  • Paid work trial (1 week) - Work on a real problem with the team and see if we're a mutual fit

About Casco

Casco performs security reviews on web, cloud, and AI applications using supervised AI agents to identify vulnerabilities and provide remediation guides.

Casco
Founded:2025
Batch:P25
Team Size:10
Status:
Active
Founders
Rene Brandel
Rene Brandel
Founder
Ian Saultz
Ian Saultz
Founder & CTO