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# Security Engineer

- **Company:** Merge LLC
- **Location:** San Francisco, CA, United States (Remote available)
- **Experience:** Experienced
- **Salary:** $170,000.0 - $200,000.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, User Authentication, Software as a Service, Cloud Computing Security, Code Review, Continuous Integration, Open Web Application Security, Systems Development Life Cycle, Secure Coding, Systems Integration, Large Language Models, Software Security, Information Technology, Api Design, Static Application Security Testing, Programming Languages, Dynamic Application Security Testing
- **Published:** October 30, 2026
- **Apply:** https://www.careerbuilder.com/job-details/security-engineer-san-francisco-ca--8eaf9b0d-81c6-414c-b372-82397c331986

## About the Role

Customer Relations, Software as a Service (SaaS), Fortune 500 Customers, Business-to-Business (B2B), Sales, Product Development, Authentication, Customer Churn, Artificial Intelligence (AI), Security Monitoring, * 3-6+ years of security engineering experience with a strong focus on product or application security

 * Deep familiarity with application security concepts: OWASP, common vulnerability classes, secure API design, auth and authorization patterns
 * Experience conducting threat modeling and secure code reviews
 * Hands-on experience with application security tooling (SAST, DAST, SCA) and integrating security into CI/CD pipelines
 * Experience with and a desire to code in at least one major programming language. You should be comfortable reading and writing code, not just running scanners
 * Experience in a SaaS or API-driven environment; familiarity with multi-tenant systems and the security challenges they present
 * Interest in learning and supporting other areas of Security where needed
 * Bonus: experience with AI/LLM security, agent security, or securing data-heavy API platforms

## Description

As a Security Engineer at Merge, you will be the primary owner of product and application security across our platform. You'll work directly alongside our Head of Security and partner closely with Engineering and Product to find and fix vulnerabilities, shape how we build securely, and ensure our API-first, AI-powered products ship with strong security guarantees. While you don't need specific experience with all of the above, we'd expect you to be excited to learn and grow, and tackle any challenges that may come your way.

What you will do:

 * Own product and application security across Merge's platform: APIs, integrations, agent tooling, and AI-powered features
 * Conduct security reviews, threat modeling, and code reviews with a focus on application-layer vulnerabilities (OWASP Top 10, injection, auth flaws, insecure deserialization, etc.)
 * Drive vulnerability identification and remediation across the full SDLC, from design through deployment
 * Build and mature our application security program, including SAST/DAST tooling, security testing in CI/CD, and developer security guidance
 * Utilize AI to test the resiliency of our applications and systems
 * Own and operate our bug bounty program end to end: triage, response, remediation, and researcher communication
 * Partner with Engineering to embed secure design patterns and security review into how we ship software
 * Support infrastructure and cloud security as needed, with a focus on how it intersects with our product surface