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System Architect - Senior

Nationwide IT Services
Fairfax, VA Full Time
POSTED ON 12/11/2025 CLOSED ON 1/9/2026

What are the responsibilities and job description for the System Architect - Senior position at Nationwide IT Services?

System Architect – Senior
Clearance: Active TS required
Education/Experience: BA/BS and at least ten (10) years of relevant experience



Overview
Nationwide IT Services (NIS) is seeking a Senior System Architect for a potential opportunity. The selected candidate will design and develop enterprise system architectures—including software, hardware, and communication components—to support current requirements and anticipate future cross-functional needs.

Location: 100% Remote (must be within commutable distance to Northern Virginia)


Key Responsibilities
  • Identify, assess, and recommend solutions to meet functional and technical requirements, including hardware/software updates or upgrades.
  • Develop high-level system design diagrams and architectural documentation.
  • Ensure compliance with common operating environment standards.
  • Analyze workflow, organizational, and planning issues and develop effective corrective actions.
  • Ensure system compatibility and compliance with open systems architecture standards, including OSI and ISO reference models.
  • Apply relevant standards—such as IEEE Open Systems Environment (OSE)—to support implementation and specification of Information Management (IM) solutions across application platforms, APIs, and external environments/software applications.
Minimum Requirements
  • BA/BS degree.
  • At least ten (10) years of relevant system architecture experience.
  • Active Top Secret (TS) clearance.
About Nationwide IT Services
Nationwide IT Services (NIS) is an IT and Management Consulting company and a CVE-verified Service-Disabled Veteran-Owned Small Business (SDVOSB). Our mission is to deliver value-added services to our customers by leveraging technology, top talent, and industry best practices to implement innovative, reliable solutions.
Benefits
Our comprehensive benefits package includes:
  • Medical, dental, and vision insurance
  • Life and disability insurance
  • 401(k) with employer match
  • Paid holidays and PTO (sick/vacation)
  • Commuter benefits
  • Employee Assistance Program (EAP)
  • Educational reimbursement
  • Pet insurance
Equal Employment Opportunity
Nationwide IT Services, Inc. provides equal employment opportunities (EEO) to all qualified applicants without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, genetics, disability, or protected veteran status.





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