Systems Engineer 3 - Linux/VMware Systems Architecture

NineFX is seeking a Systems Engineer Level 3 to lead senior-level systems engineering, technical planning, and infrastructure operations across highly complex enterprise environments. This role supports full lifecycle engineering-from requirements analysis and architectural development to integration, verification, validation, and accreditation-while also delivering expert-level hands-on support for Red Hat Linux, VMware virtualization, Splunk, and Ansible automation.

The engineer drives mission-critical modernization, maintains system integrity across multi-platform infrastructures, and provides authoritative technical direction in high-security DoD/IC environments., Linux, Virtualization, and Infrastructure Engineering

• Configure, harden, manage, and troubleshoot Red Hat Linux operating systems
• Install and load OS software, validate configurations, and maintain system integrity
• Configure and support network components and implement OS-level enhancements to improve reliability and performance
• Provide senior operational support for the troubleshooting and maintenance of complex IT systems
• Optimize system resource utilization; conduct capacity analysis and planning
• Resolve dispatch system issues and hardware problems throughout system lifecycle

Virtualization & Automation

• Deliver extensive hands-on engineering support for VMware platforms, including configuration, optimization, and lifecycle sustainment
• Use Splunk and Ansible to enhance monitoring, orchestration, automation, configuration consistency, and system observability

Systems Engineering & Architecture Leadership

• Analyze user requirements, CONOPS, and architectures; develop detailed system requirements and specifications
• Lead systems engineering activities and ensure alignment with DoDAF and SOA architectural frameworks
• Develop technical documentation including SEPs, requirements specifications, ICDs, and design artifacts
• Provide technical direction for system development, engineering, interfacing, integration, and testing across hardware and software domains
• Evaluate design alternatives and support integration of new technologies into existing mission operations
• Conduct feasibility studies, trade analyses, and modeling/simulation

Verification, Validation & Lifecycle Management

• Define evaluation criteria and verification methods for system and subsystem testing
• Prepare or assess integration/test plans supporting DoD and Government accreditation activities
• Maintain configuration control and technical baselines throughout system lifecycle
• Assess system risks, determine impacts, and assist with mitigation planning

Architecture, Interfaces & Operational Views

• Implement operational, system, and technical views aligned with DoDAF standards
• Capture and maintain interface designs in standardized repositories
• Support development of operational concepts, end-to-end flow analysis, and architectural modernization

Information Assurance & Security Engineering

• Develop derived IA requirements including confidentiality, integrity, non-repudiation, and availability
• Support authentication, access control, accountability, and cryptographic solutions
• Ensure system security and IA alignment throughout engineering and operational activities

Required

• Active TS/SCI with Full Scope Polygraph (must already be held)
• 20 years of systems engineering experience supporting DoD or Government programs
• Bachelor’s degree in Systems Engineering, CS, IS, Engineering Management, or related discipline
• Five additional years may substitute for degree
• Expertise with Red Hat Linux, VMware, Splunk, and Ansible
• Experience leading SE planning, documentation, integration, and architectural development
• Strong understanding of DoDAF/SOA architectures and system-of-systems integration
• Ability to manage system requirements and derived requirements throughout lifecycle
• Excellent communication skills with senior executives and government personnel

Preferred

• Experience developing SOA solutions
• Experience with risk management, quantitative performance analysis, and lifecycle trade studies
• Familiarity with DoD certification and accreditation processes