Radio Frequency Engineer III

Radio Frequency Engineer III
Place of Performance: Charleston, South Carolina | Department of Defense C4I Program
Clearance: TS/SCI eligible

Position Summary
Nationwide IT Services (NIS) is seeking an experienced Radio Frequency (RF) Engineer III to support the engineering, integration, testing, and sustainment of Department of Defense (DoD) Command, Control, Communications, Computers, and Intelligence (C4I) communications systems. The successful candidate will provide RF engineering expertise to support mission-critical communications capabilities throughout the system lifecycle.

Key Responsibilities:

• Design, analyze, and evaluate radio frequency (RF) systems.
• Support RF testing, validation, and performance assessments.
• Troubleshoot communications systems and resolve technical issues.
• Perform RF engineering analyses to support system performance and reliability.
• Support the integration of DoD C4I communications capabilities.
• Develop and maintain technical documentation related to RF engineering activities.
• Collaborate with engineering and technical teams to support system implementation and sustainment.

Minimum Qualifications:
Education
Bachelor's degree in one of the following disciplines:

• Electrical Engineering
• Computer Engineering
• Computer Science
• Information Technology
• Information Systems
• Mathematics
• Related Engineering discipline

Certifications:
When required by tasking, candidates must possess a current DoD 8570/8140 compliant certification meeting one of the following:

• Information Assurance Manager (IAM) Level II;
• Information Assurance Technical (IAT) Level II; or
• Information Assurance System Architect and Engineer (IASAE) Level II.

Professional Experience:

• Minimum of 10 years of professional Radio Frequency (RF) engineering experience.
• At least 4 years supporting Department of Defense C4I systems.

Preferred Qualifications

• Experience with RF spectrum analysis.
• Satellite Communications (SATCOM) experience.
• Experience supporting tactical communications systems.
• Network engineering background.

Why Join NIS?
Join a trusted government contractor supporting high-impact defense missions alongside experienced professionals in a collaborative, growth-focused environment. NIS invests in professional development, recognition, and opportunities to contribute to work that matters.

Benefits
For eligible employees, NIS offers medical, dental, and vision insurance; life and disability insurance; a 401(k) plan with employer match; paid holidays; paid time off; commuter benefits; an employee assistance program; educational reimbursement; and pet insurance. Eligibility and offerings may vary based on employment classification and plan terms.

Salary range $100,000 to $175,000 annually 
The salary range is a general guideline. We consider several factors when determining base salary offers, including the position's scope and responsibilities, the candidate's