Systems Administrator - Senior - Ccis

Systems Administrator – Senior – CCIS

Company: Nex Threat

Location: Reston, VA (telework acceptable after program start)

Employment Type: Full‑time (W2 or 1099)

Time Type: Full‑time

Clearance Requirement: Secret / IT‑I – Critical Sensitive (Tier 5/SSBI)/High Risk

Citizenship: US Citizen only (no dual citizenship)

Job Description: The Senior Systems Administrator will ensure stable operation of in‑house software systems and network connections, plan, develop, install, configure, maintain, support, and optimize all network software and communication links. The role includes leading configuration and operation of information management systems across multiple locations, resolving end‑user software and connectivity issues, conducting capacity and performance analysis, and driving automation, standardization, and cross‑location support.

Collaboration with security and network teams is essential to maintain a secure, scalable, highly available IT infrastructure.

• Plan, develop, install, configure, maintain, support, and optimize network software and communication links to ensure stable operation of in‑house systems.
• Lead configuration and operation of information management systems across multiple locations, coordinating IT infrastructure activities to meet business needs.
• Analyze and resolve end‑user software and connectivity issues; provide timely incident response and root‑cause analysis.
• Conduct capacity planning and performance analysis; propose configuration changes and upgrade recommendations to improve reliability, security, and efficiency.
• Increase administrator efficiency through automation, scripting, and development of standardized procedures; create and maintain runbooks and comprehensive documentation.
• Deliver end‑user training and develop training materials to promote effective use of systems and applications.
• Provide technology direction aligned with business vision; participate in technology roadmaps and strategic initiatives.
• Provide local and remote maintenance support for operational systems at multiple locations, including general maintenance, upgrades, and new installations of servers and applications.
• Direct, mentor, and coordinate the work of other system administrators to ensure day‑to‑day system administration, resource optimization, and user support.
• Apply advanced technical knowledge of application networking, including load balancing, fault tolerance, and high‑availability configurations.
• Lead vulnerability management, including assessment, remediation, and compliance activities; collaborate with security teams to ensure secure, scalable infrastructure.
• Monitor, troubleshoot, and optimize system performance, backups, disaster recovery planning, and change management processes.
• Evaluate and recommend automation tools, monitoring solutions, and best practices to reduce manual effort and improve reliability.
• Ensure adherence to IT policies, standards, and regulatory requirements as applicable to industry.

Competitive 401(k) matching, health, vision, and dental insurance, paid leave and sick days, and a $5,000 vacation bonus after 5 years of service. Referral program rewards for bringing talented professionals into the team.

• BA/BS in a technical discipline with at least 10 years of specialized experience in information processing, including at least 4 years of hands‑on experience installing, configuring, maintaining, and resolving issues with various software.
• IA Level: IAT II
• 8570.01‑M Baseline Certification

• Google Cloud Platform – Google Associate Cloud Engineer or Google Professional Cloud Architect
• Plus One of: AWS Certified Cloud Practitioner; AWS Certified Security – Specialty; AWS Certified Solutions Architect – Associate; AWS Certified Solutions Architect – Professional; AWS Certified Sys Ops Administrator;
  Microsoft Certified:
  Azure Administrator Associate;
  Microsoft Certified:
  Azure Solutions Architect Expert;
  Microsoft Certified Azure Security Engineer Associate;
  Oracle Cloud Infrastructure Cloud Operations;
  Red Hat Certified Engineer;
  Red Hat Certified System Administrator

• 3+ years…