Senior Systems Engineer, Secure Network & Mission Systems

RTX; Richardson (TX); On-site; USD 96,000 - 182,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

Three weeks vacation

401(k) Matching

Job summary

RTX is seeking a Senior Systems Engineer in Richardson, TX to support Strategic Defense Solutions. You will develop system requirements, model architectures with SysML, and verify test procedures across system and sub-system levels in a security-cleared environment.

Collaborate with distributed teams, apply MBSE practices, and leverage VMware and cloud platforms. Onsite role requiring Top Secret clearance and U.S. citizenship.

Qualifications

• Understanding of network architectures, TCP/IP protocols, routing, switching, and VLANs.
• Familiarity with network segmentation, access control mechanisms, firewalls, and infrastructure protection techniques.
• Proven experience in systems engineering to include capturing customer requirements, operations concept development, deriving and tracing system and sub-system requirements.
• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) unless prohibited by local laws/regulations and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience.
• Active and transferable U.S. government DoD issued Top-Secret security clearance prior to start date.
• U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Responsibilities

• Develop, analyze and maintain system level requirements related to network infrastructure connectivity and system protection.
• Evaluate network and system architectures against established technical standards to identify vulnerabilities, dependencies, and potential operational risks.
• Support network hardening and system integrity through the implementation of access controls, traffic filtering and secure communication mechanisms.
• Analyze network configuration, protocols, system access mechanisms to identify weaknesses and recommend improvements.
• Building complicated models using SysML for activity, state, block diagrams, and use cases.
• Develop and verify test procedures at the system and sub-system levels.
• Utilize VMWare or other cloud platforms (AWS, GCP, Azure, Oracle) in cloud and hybrid environments.
• Utilize JIRA to decompose features into user stories with clear acceptance criteria.
• Support communication between functional discipline groups within the organization.
• Engage in classified lab environments to apply your expertise hands‑on.
• Utilize effective communication skills with all levels of management, program team members, and external stakeholders.

Skills

Networking concepts

TCP/IP protocols

Systems engineering

Security fundamentals

VLANs and routing

Education

STEM degree

Advanced degree

Tools

MagicDraw Cameo

Rhapsody

Enterprise Architect

VMware

JIRA

Job description

RTX is seeking a Senior Systems Engineer in Richardson, TX to support Strategic Defense Solutions. You will develop system requirements, model architectures with SysML, and verify test procedures across system and sub-system levels in a security-cleared environment.

Collaborate with distributed teams, apply MBSE practices, and leverage VMware and cloud platforms. Onsite role requiring Top Secret clearance and U.S. citizenship.