Overview
Founding Security Engineer Jobs in San Francisco, California, USA at Casca (YC S23)
Title: Founding Security Engineer
Company: Casca (YC S23)
Location: San Francisco, California, USA
Type: Full Time
Category: IT/Tech, Security
Founding Security Engineer
Shape the future of secure AI-powered fintech at Casca.
The Mission
You’ll be the cornerstone of our security program, building the fortress that protects millions of customers’ financial data while enabling rapid AI
innovation
. This isn’t about maintaining the status quo – it’s about creating a new security paradigm where cutting-edge GenAI meets bank-grade protection.
Your Impact
As our first Security Engineer, you’ll:
• Architect our entire security infrastructure from scratch, working directly with our engineering team, Chief Risk Officer, and CTO
• Build automated security systems that scale with our explosive growth
• Pioneer security practices that set industry standards for AI-powered fintech
• Lead SOC 1 & SOC 2 compliance while maintaining our aggressive
innovation
pace
• Create a company-wide security culture through engaging training programs
The Opportunity
This is your chance to define how the next generation of financial institutions handle security. You’ll bridge the gap between bleeding-edge AI
innovation
and institutional-grade protection, creating systems that safeguard millions while enabling breakthrough features.
Join us in building something unprecedented – where security enables
innovation
rather than constraining it.
Required Qualifications
• 5+ years of information security experience
• Bachelors degree in Information Security, Computer Science, or Computer Engineering
• Strong experience with AWS cloud security (Guard Duty, WAF, Shield, Route 53, Well Architected)
• Deep knowledge of security and AI frameworks (NIST-CSF, NIST-AI RMF)
• Experience with compliance standards (SOC 1, SOC 2, ISO 27001, PCI DSS)
• Experience with security tools (SIEM, IDS/IPS)
• Strong coding abilities in Python, Go, or similar languages
• Excellent
communication
and documentation skills
Preferred Qualifications
• Relevant security certifications (CISSP, CISM, CEH)
• Experience in fintech or banking, or other highly regulated industries
• Background in application, data, and/or infrastructure security
• Experience building security programs from scratch
• Site Reliability Engineering experience
• Familiarity with
modern
observability platforms
Why Casca?
We’re revolutionizing the $7T lending industry through GenAI systems, killing traditional lending software as we know it. Our loan origination platform is reshaping how banks evaluate and process loans, reducing decision time from months to minutes. We’ve already earned the trust of major U.S. banks and are growing quickly. Join us and define the future of banking.
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