Senior Full-Stack / Security Automation Engineer for Private Evaluation Sandbox

Title: Senior Full-Stack / Security Automation Engineer for Private Evaluation Sandbox I am looking to speak with a senior engineer or small technical team about building a private evaluation sandbox for a confidential security operations project. This is not a generic website build. The work would involve designing a secure, access-controlled sandbox environment for external partner evaluation. The focus is on the outer platform only: authentication, role-based access control, test-data upload, API wrapper/integration layer, dashboard/reporting, audit logs, safe exports, deployment, documentation, and controlled user limits. Important: the underlying proprietary method will not be disclosed during the initial conversation. I am looking first to identify the right technical person/team, discuss architecture at a high level, understand delivery approach, and assess whether a formal NDA/IP agreement would be appropriate before any deeper engagement. Ideal background: Senior full-stack engineering experience Strong security mindset Experience with SaaS dashboards, APIs, RBAC, audit logs, and secure deployment Familiarity with SOC, SIEM, SOAR, security automation, or enterprise security workflows Comfortable building controlled evaluation environments Able to work discreetly under strict confidentiality No subcontracting without written approval Please do not apply if your experience is mainly basic websites, landing pages, WordPress, simple CRUD apps, or junior frontend work. In your reply, please answer: Have you built secure sandbox/demo environments before? Have you worked with security operations, SIEM, SOAR, SOC, or automation platforms? How would you structure a 60–90 day private evaluation sandbox build? How do you normally handle confidentiality, IP ownership, and restricted technical access? Are you an individual engineer, a small team, or an agency? This is an initial discovery post only. I am not sharing confidential technical detail at this stage.