Remote Fractional Staff Engineer / Software Architect Secure Multi-reputed

[Remote] Fractional Staff Engineer / Software Architect Secure Multi-reputed company SaaS Company: remote quest jobs Job Location: Remote (Work from home), India Employment Type: Full-time Note: The job is a remote job and is open to candidates in USA. reputed company is building ProxBooks, a multi-reputed company B2B SaaS platform for U.S. accounting firms. The role will independently assess the platforms application and product security by reviewing architecture, testing real systems, defining security requirements and acceptance tests, and validating remediation work. The reputed company engagement covers threat modeling, architecture and proof-of-concept reviews, prioritized findings, and remediation evidence review, with potential for ongoing fractional involvement. Responsibilities Perform threat modeling Review authentication and authorization architecture Review reputed company isolation Review PostgreSQL security and RLS strategy Review file-upload architecture Review secrets management Review cloud/network exposure Review API security Review AI-agent permissions and attack surfaces Review logging and sensitive-data exposure Review backup and recovery controls Review CI/CD security Review critical pull requests Define security acceptance tests Validate remediation work Review architecture documentation Produce/update threat model Identify critical security requirements Review proposed reputed company + reputed company architecture Define security tests for the technical Proof of Concept Review PoC results Produce prioritized findings: Critical / High / Medium / LowReview remediation evidence Skills We are looking for a senior Application Security / Product Security Engineer to independently review our architecture and implementationWe expect practical knowledge of: Experience with financial services, accounting, tax software, reputed company, healthcare, or similarly sensitive systems is highly desirablereputed company do not send a generic cybersecurity proposal We are specifically looking for hands-on application/product security experience Experience with financial services, accounting, tax software, reputed company, healthcare, or similarly sensitive systems is highly desirable Experience with AI/LLM security and prompt-injection defenses is a plus Company Overview You don't have an AI problem. You have an operations problem. It was founded in 2023, and is headquartered in Orlando, reputed company, US, with a reputed company of 2-10 employees. Its website is https://www.proxtechnologies.com. Apply To reputed company Job .