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Senior Staff Product Security Engineer

Atlanta, GASecurity EngineeringRemote12+ YOE
Summary

Leads product security strategy, embeds security into SDLC across web, mobile, and cloud platforms, and drives secure development programs. Requires 12+ years in application security with expertise in AppSec tools, cloud architecture, and regulated industries.

About the role

Responsibilities

  • Define and lead the long-term product security strategy, roadmap, and vision in alignment with company goals, risk appetite, and regulatory requirements.
  • Serve as the internal authority on application and product security, providing expert guidance to engineering, product, and executive leadership.
  • Drive a company-wide culture of security ownership embedding security thinking deeply into the habits of every engineering team.
  • Architect and continuously evolve a best-in-class Product Security program, spanning threat modeling, SAST, DAST, IAST, SCA, runtime protection, and API security.
  • Lead the design and enforcement of secure development standards across web, mobile, and cloud including secure coding guidelines, IaC policies, and API security frameworks.
  • Identify and drive resolution of systemic, high-impact vulnerabilities and architectural security gaps across Greenlight's platform.
  • Lead and mature Greenlight's penetration testing program, both through internal efforts and external vendor partnerships.
  • Partner with engineering and platform teams to build security-enhancing product features that protect our customers' financial data.
  • Establish and lead incident response processes for product-level security events, including root cause analysis and systemic remediation.
  • Evaluate and introduce emerging security tooling, techniques, and frameworks to keep Greenlight ahead of the threat landscape.
  • Mentor staff and senior engineers across the security and engineering organizations, raising the overall security engineering capability of the company.

Requirements

  • 12+ years of experience in product security, application security, or a related engineering discipline.
  • Proven track record of defining and driving security programs at scale across complex, multi-platform environments.
  • Hands-on experience architecting and implementing security solutions and processes in production environments, enabling engineering teams to build and ship securely at scale.
  • Expert-level knowledge of web and mobile application security, including OWASP Top 10, API security, and mobile threat vectors (iOS and Android).
  • Deep hands-on experience with the full AppSec toolchain: SAST, DAST, IAST, SCA, secrets scanning, and runtime protection.
  • Strong command of cloud security architecture and controls, particularly in AWS environments.
  • Experience leading or heavily influencing the security architecture of distributed, microservices-based systems.
  • Experience in developing and implementing security solutions.
  • Demonstrated ability to build strong cross-functional relationships and influence engineering culture without direct authority.
  • Exceptional communication skills — you can distill complex security risk into clear, actionable language for engineers, executives, and non-technical stakeholders alike.
  • Experience operating in regulated industries (e.g. financial services, fintech, healthcare).

Nice-to-Haves

  • Hands-on certifications such as OSCP, GWAPT, GPEN, CISSP, or equivalent — and/or public code/research.
  • Experience building or scaling Product Security programs in high-growth startup environments.
  • Familiarity with security tools including Burp Suite, or Kali Linux.

Technologies

Node.js, Java/Kotlin, React, Redux, Swift, SwiftUI AWS, GCP MySQL, DynamoDB, Redis Kubernetes, Ambassador, Helm, Rancher

Benefits

  • Medical, dental, vision, and HSA match
  • Paid life insurance, AD&D, and disability benefits
  • Traditional 401k with company match
  • Unlimited PTO
  • Paid company holidays and pop-up bonus holidays
  • Professional development stipends
  • Mental health resources
  • 1:1 financial planners
  • Fertility healthcare
  • 100% paid parental and caregiving leave, plus cleaning service and meals during your leave
Skills
Node.jsJavaKotlinReactReduxSwiftSwiftUIAWSGCPKubernetesMySQLDynamoDBRedisSASTDAST