Systems Administrator III / IV

Job Description

Job Description

Job Title : System Administrator III / IV

Department : Federal Services

Job Purpose : Provide IT Systems support for cyber team at on-site Government location.

About Circadence Corporation

Circadence is an award-winning, privately held, US-owned business that specializes in cybersecurity training and assessment

platforms. Our core area of expertise is the development and management of cyber range capabilities, networking solutions,

implementation of policies, processes and tools required to conduct cyber assessments, and cyber workforce development.

Job Description : Sys Admin team member supporting cyber range network operations and mission execution. The position

requires candidates to have excellent communication, analytical, and problem-solving skills to help identify, communicate, and

resolve issues. The person will work in a dynamic team environment, interface with clients and Circadence staff. This is a permanent

full-time position working on-site at Orlando UCF activity. TS / SCI security clearance required.

• Systems Administrator will work directly with ISSOs by performing the key objectives noted below :

o System Security Configuration and Hardening :

Implement and maintain secure configurations for operating systems, applications, and network devices

based on security standards (e.g., NIST, RMF, etc.)

Apply patches, updates, and security fixes to mitigate vulnerabilities for local and distributed systems.

Access Control and Identity Management :

Manage user accounts, permissions, and roles to enforce the principle of least privilege.

Configure and monitor authentication mechanisms (e.g., MFA, SSO) in coordination with ISSOs.

Regularly review access logs and revoke unnecessary privileges with Security oversight.

o Monitoring and Incident Response :

Deploy and manage security tools like intrusion detection / prevention systems (IDS / IPS), antivirus, and

SIEM solutions for Security staff.

Monitor system logs and alerts for suspicious activities and report findings to ISSOs.

Assist in incident response by isolating affected systems, collecting forensic data, and implementing

remediation steps under ISSO guidance.

Vulnerability Management :

Prioritize and remediate identified vulnerabilities in collaboration with ISSOs.

Document and report remediation efforts to ensure compliance with security policies.

o Compliance and Policy Enforcement :

Ensure systems adhere to organizational security policies and regulatory requirements (e.g., NIST, RMF,

etc.)

Support ISSOs in audits by providing system documentation, logs, and evidence of compliance.

Implement security controls aligned with frameworks like NIST 800-53 or RMF.

o Backup and Disaster Recovery :

Maintain secure and encrypted backups to ensure data integrity and availability.

Test disaster recovery plans to minimize downtime during security incidents.

Coordinate with ISSOs to ensure backup processes meet security requirements.

o Network and Endpoint Security :

Implement and assist with configuration of endpoint protection tools to secure system boundaries.

Monitor systems for anomalies and report unauthorized access attempts.

Collaborate with ISSOs to align network and system security measures with organizational standards.

Required Skills / Experience

Computer / User Objects, LDAP, Authentication protocols, AD Permission delegation using the least privilege methodology,

Dynamic / Static AD groups, as well as other Domain services in accordance with MS best practices and compliance.

to integrate security controls, privacy, and cyber supply chain risk management for cyber infrastructure.

Compensation : $110,000 - $135,000 Circadence is proud to offer medical, vision, and dental insurance, 401(k) plan with company

matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, critical illness and accident

insurance to all full-time employees, along with generous paid time off and holidays.

In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to

complete the required employment eligibility verification form upon hire

Circadence Corporation is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership / union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.

Circadence will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements.

https : / / www.eeoc.gov / sites / default / files / migrated_files / employers / poster_screen_reader_optimized.pdf

All Circadence employees are expected to actively support diversity on their teams, and in the Company.

NOTICE : Applicants selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information.