Senior Cyber Systems Engineer

Position Overview:The Senior Cyber Systems Engineer is responsible for the administration, implementation, andmonitoring of critical cybersecurity systems, ensuring the stability and security of on-premise, cloud, and managed service provider (MSP) environments. The ideal candidate will be a senior-level systems administrator with experience managing complex network systems, supporting a Zero Trust architecture, and providing proactive cybersecurity services to protect the CDC's infrastructure and data.Key Responsibilities:System Administration & Monitoring:Oversee and maintain the operation of CDC cybersecurity systems, including infrastructure and application security.Administer tools and technologies used to manage network defenses, detect threats, and respond to vulnerabilities across on-premise, cloud, andMSP-hosted environments.Ensure the seamless operation of enterprise Continuous Diagnostics & Mitigation (CDM) tools and provide configuration management for security tools.Infrastructure and Network Security:Provide technical expertise to manage and configure firewall policy management, user access control, and boundary protection services while adhering to Zero Trust and least privilege design concepts.Support and secure perimeter networks by deploying and maintaining systems that prevent unauthorized interaction between internal and external networks.Cybersecurity Architecture and Engineering:Collaborate with development, operations, and digital services teams to maintain security configurations and access control mechanisms.Conduct assessments and tests of emerging cybersecurity technologies, making recommendations to integrate advancements into the CDC's network security framework.System Maintenance and Troubleshooting:Perform routine system diagnostics and fault identification to recover failed systems within defined timeframes, ensuring availability of critical security systems.Provide after-hours support as needed to resolve critical outages or issues.Security Software and Asset Management:Install and maintain a wide range of security software and hardware (e.g., ExtraHop, Splunk, CrowdStrike, RedSeal) across virtual, cloud, and mobile environments.Maintain a comprehensive asset inventory and ensure systems comply with FISMA guidelines.Data Analysis and Integration:Analyze cybersecurity data from multiple sources, developing methodologies to integrate data using APIs for consolidation into security tools like ServiceNow and Archer.Compliance and Patch Management:Ensure timely installation of security patches and firmware updates in compliance with Department of Homeland Security (Client) and HHS vulnerability remediation requirements.Required Skills and Experience:10+ years of experience in network and system administration, with a focus on cybersecurity operations and infrastructure security.Expertise in managing Linux (RHEL, Oracle) and Windows Server environments in a hybrid on-premise/cloud infrastructure.Experience with AWS and Azure cloud platforms, containerized applications, and serverless architectures.Proficiency with firewall management, network access control (NAC), and Zero Trust architectures.Strong knowledge of Continuous Diagnostics & Mitigation (CDM) tools, threat detection tools, and endpoint security software.Demonstrated experience with diagnostic tools, incident recovery, and after-hours support.Knowledge of security compliance frameworks (e.g., FISMA, NIST, FedRAMP).Certifications:Certifications are not required, but optimal and might include:CISSP, CCSP, or equivalent security certifications.Relevant network or systems administration certifications (e.g., MCSE, RHCSA, AWS Certified SysOps Administrator).Additional Qualifications:Strong problem-solving skills and ability to work in a fast-paced, mission-critical environment.Excellent communication and collaboration skills, with experience working across multiple teams (IT, development, operations).