Senior IT Systems Manager

Terrestris Global Solutions; Washington (District of Columbia); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Health benefits

Tuition assistance

Professional development

Job summary

Terrestris Global Solutions in Washington, D.C. is seeking a Senior IT Systems Manager to provide leadership in cybersecurity and enterprise IT systems supporting the National Indian Gaming Commission mission. The role involves overseeing secure network operations and managing IT infrastructure. Candidates should have a Bachelor’s degree or relevant certifications and over 6 years of experience in IT systems engineering. The position offers outstanding benefits and a supportive work environment.

Qualifications

• 6+ years of experience in IT systems engineering or administration.
• Hands-on experience with Microsoft 365, Azure, and on-premises environments.
• Experience applying NIST guidelines and FISMA requirements.

Responsibilities

• Perform systems engineering and maintenance following standards.
• Implement and troubleshoot solutions across LAN, Azure, cloud, and wireless.
• Develop disaster recovery strategies and implement patch management.

Skills

Microsoft 365

Azure

Cybersecurity

Systems Engineering

FISMA Compliance

Disaster Recovery Planning

Security Compliance

STIG Implementation

Education

Bachelor’s degree or relevant certifications

Tools

Microsoft 365 Entra ID

Servers

Networking Equipment

Cloud Infrastructure

Job description

About the Role

The Senior IT Systems Manager provides leadership and hands‑on support for cybersecurity and enterprise IT systems supporting the National Indian Gaming Commission mission. They oversee secure network operations, manage IT infrastructure and compliance, and deliver on‑demand technical and cybersecurity services to protect systems, data, and continuity of operations at NIGC headquarters in Washington, D.C.

Responsibilities

• Perform systems engineering and maintenance following standards.
• Apply NIST and FISMA principles to IT systems management.
• Implement and troubleshoot solutions across LAN, Azure, cloud, and wireless environments.
• Evaluate IT architecture and recommend improvements.
• Identify FISMA compliance gaps and propose remediation plans.
• Manage Microsoft 365 Entra ID (conditional access, MFA, auditing).
• Provide operational recommendations to system owners.
• Develop and implement STIG baselines and monitoring/alerting.
• Perform daily systems administration (on‑prem and cloud).
• Execute security compliance tasks (EDR policies, SCUBA baselines).
• Install, configure, and maintain servers, storage, and networking equipment.
• Develop disaster recovery strategies.
• Implement patch management and secure data.
• Apply firmware and security updates.
• Maintain system configurations and mitigate vulnerabilities.
• Support projects and system integrations.
• Develop and maintain systems documentation and SOPs.

Qualifications

• Authorization to permanently work in the United States without sponsorship.
• A Bachelor’s degree and/or relevant certifications (AZ‑800/801, AZ‑104, MS‑102, SC‑300, Security+, Server+, CASP+, CAP, RHCSA, Cisco CCNA or CCNP Enterprise, etc.).
• Minimum 6 years of continuous experience in IT systems engineering or administration.
• Demonstrated experience applying NIST guidelines and FISMA requirements.
• Hands‑on experience with Microsoft 365, Azure, Entra ID (identity, MFA, conditional access), and on‑premises and cloud infrastructure (servers, storage, networking).
• Experience in systems engineering, administration, architecture evaluation, patch management, STIG implementation, and vulnerability mitigation.
• Disaster recovery planning and security compliance activities.
• Ability to recommend system improvements and remediation plans and support integration of IT systems and projects.
• Ability to perform with minimal supervision at a senior level.

Benefits

We offer outstanding benefits including health, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, and work‑life programs. Our award programs acknowledge employees for exceptional performance and superior demonstration of our service standards. Full‑time and part‑time employees working at least 20 hours a week on a regular basis are eligible to participate in our benefit programs. Other offerings may be provided for employees not within this category.

Terrestris is an Equal Opportunity Employer (EOE). Qualified applicants are considered for employment without regard to age, race, color, religion, sex, national origin, sexual orientation, disability, or veteran status. Applicants must be authorized to work in the U.S.