Systems Administrator

Credence•Tysons, VA

About The Position

Credence is hiring a Systems Administrator to support and secure its enterprise IT environment across Microsoft 365, Azure, AWS, and Google Cloud Platform. The role covers day-to-day systems administration, endpoint management, identity and access administration, security operations support, and Tier II escalation support for a hybrid workforce operating under federal contractor compliance requirements. The administrator will maintain cloud-hosted and endpoint systems across Windows, macOS, and Linux; manage endpoints and identity services; support security alert triage and vulnerability remediation; and automate administrative tasks using PowerShell and/or Python. The role also contributes to disaster recovery, documentation, and audit evidence. The position participates in a bi-weekly on-call rotation for after-hours support as needed. U.S. citizenship is required; no security clearance is required.

Requirements

U.S. citizenship is required.
Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, or a related field, or equivalent experience.
At least 5 years of experience in systems administration with a security-conscious operating approach.
Proficiency administering Microsoft 365, Azure, AWS, and Google Cloud Platform environments.
Hands-on experience with Microsoft Intune and Windows Autopilot in a managed endpoint environment.
Hands-on experience with Microsoft Defender, Microsoft Sentinel, Proofpoint, and Nessus or an equivalent vulnerability management platform.
Strong scripting skills in PowerShell and/or Python for automation and integration tasks.
Working knowledge of Windows, macOS, and Linux operating systems, including server administration fundamentals.
Familiarity with backup systems, disaster recovery protocols, and enterprise networking fundamentals.
Excellent troubleshooting, documentation, and interpersonal communication skills.
Ability to work independently with minimal supervision and maintain confidentiality when handling sensitive data.

Nice To Haves

Certifications such as Microsoft AZ-500, AWS Certified Security Specialty, AWS Certified Solutions Architect Associate, CompTIA Security+, CCNA, or similar.
Background administering virtualized server environments such as VMware or Hyper-V, as evidence of transferable Windows and Linux server administration depth applicable to cloud-hosted compute.
Experience supporting a federal contractor environment, including familiarity with CMMC Level 2 and SOC 2 requirements.
Working understanding of compliance frameworks such as NIST 800-171, ISO 27001/27002, and CMMC.
Familiarity with JSON and YAML, and with infrastructure-as-code or configuration management tooling.
Experience contributing to IT or security project initiatives beyond day-to-day operational support.

Responsibilities

Administer and maintain cloud-hosted and endpoint systems across Windows, macOS, and Linux.
Manage endpoints using Microsoft Endpoint Manager, including Microsoft Intune policy administration and Windows Autopilot deployments.
Build, maintain, and troubleshoot device compliance policies, configuration profiles, and application deployment packages.
Maintain software and operating system patch cadence across the managed endpoint fleet.
Manage user accounts and directory services, including Active Directory, Microsoft Entra ID, and Group Policy.
Execute onboarding, offboarding, and access change requests in line with documented Identity and Access Management policy and least-privilege standards.
Support secure access protocols, including conditional access policy administration and multifactor authentication enrollment.
Monitor and triage security alerts in Microsoft Defender and Microsoft Sentinel, escalating confirmed incidents to the security and compliance function.
Execute vulnerability remediation based on Nessus scan results, including system hardening, patching, and verification of closure.
Administer email security tooling, including Proofpoint and secure mail flow policies; analyze email headers in support of phishing investigations.
Support phishing simulation campaigns and security awareness initiatives run by the security and compliance function.
Contribute evidence and system configuration detail in support of CMMC and SOC 2 audit cycles.
Provide advanced technical support and resolve escalated IT tickets.
Write and maintain PowerShell and Python scripts to automate repetitive administrative tasks and reporting.
Assist in disaster recovery planning, backup strategy, and restoration testing.
Write and maintain technical documentation and internal knowledge base articles for procedures owned by this role.
Participate in a bi-weekly on-call rotation to provide after-hours support as needed.