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# *Lead Systems Security Engineer Level 4 or 5 (TS/SCI)

- **Company:** Insight Global
- **Location:** Greenville, TX, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, JIRA, Signals Intelligence, Network Interface Controllers, Software Tools, Software Requirements Analysis, Nessus, Vulnerability Analysis
- **Published:** October 2, 2026
- **Apply:** https://dejobs.org/x/x/6ADDC6BDE9F3468C829A60CFED56A1CD/job/

## About the Role

* 10+ years of experience as a Systems Engineer * TS/SCI clearance * Experience with DOORS, Cameo, JIRA or other lifecycle engineering tools * Experience with vulnerability scanning tools (e.g., Nessus, Tenable, ACAS) * Knowledge of radar, EO/IR, SIGINT, Communications or Networking * Experience with Model-Based Systems Engineering (MBSE) tools and methods * Experience working with ISR platforms, mission systems, sensors, payload integration, battle management command & control systems * Experience with technical documentation, interface control, and requirement management tools * Experience in performing trade studies and supporting technical decision-making for hardware and/or software selection * Familiarity with Sensor Infrastructure or similar complex system architectures * Ability to communicate and influence security practices across organizational boundaries * Project management experience supporting large-scale, complex security initiatives

## Description

* Author and review security requirements, ensuring alignment with applicable frameworks and policies * Identify and implement significant improvements to security processes, systems, and controls * Prepare and deliver technical briefing materials for leadership and stakeholders * Provide input into new security products and processes with measurable impact on business and mission outcomes * Lead system requirements management, decomposition, traceability, verification, and validation * Define, analyze, allocate, and manage system, subsystem, and component requirements * Evaluate requirements flow-down, definition quality, and traceability. * Conduct trade studies across hardware, software, and system design alternatives * Support hardware selection for mission systems, processing, networking, sensors, storage, and infrastructure