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Lead Linux systems administration across development, laboratory, and production environments supporting cybersecurity operations. Manage RHEL, Splunk, Ansible, virtualization, storage, patching, troubleshooting, security controls, STIG compliance, access management, monitoring, dashboards, alerts, backups, and automation. Support deployment of new technologies, develop procedures and policies, manage project components, and improve infrastructure security, performance, and reliability.

Designs, builds, secures, and maintains enterprise network and lab infrastructure for government cyber incident response. Responsibilities include investigating vulnerabilities, configuring routers, switches, firewalls, VPNs, and virtual environments; troubleshooting network and storage issues; implementing access controls and backups; monitoring performance; integrating technologies; and developing security procedures and SOPs.

Develop, review, edit, and maintain cybersecurity technical communications, operational procedures, plans, action reports, SOPs, CONOPS, work instructions, meeting minutes, charts, and executive briefings. Collaborate with incident management teams, cyber analysts, engagement leads, and subject matter experts to produce concise, accurate deliverables under tight deadlines. The role is fully onsite, Monday through Friday, and supports U.S. Government cyber incident response operations.

Monitor and analyze network activity to detect suspicious behavior, intrusions, and malicious cyber activity. Perform packet-level analysis, event correlation, incident documentation, trend analysis, attack reconstruction, and IDS alert validation. Develop and deploy detection signatures, identify exploited weaknesses, and provide cyber defense reporting and escalation for government and critical infrastructure environments.

Analyze and disseminate cyber threat intelligence to support vulnerability management and operational decisions. Identify emerging threats, vulnerabilities, trends, and intelligence gaps; recommend countermeasures and collection requirements. Integrate classified and unclassified sources, produce analytical reports, brief stakeholders, and collaborate across agencies and locations. Improve threat intelligence capabilities through training, research, and knowledge-base development.

Investigates and triages cyber incidents for U.S. Government agencies and critical asset owners. Responsibilities include correlating incident data, assessing scope and impact, identifying attack methods and vulnerabilities, analyzing alerts and log data, developing mitigation plans, researching resolution steps, tracking incidents through closure, coordinating with stakeholders, and supporting assigned shifts.

Develop and sustain software applications and integrations for a mission-critical government network operations environment. Responsibilities include coding, troubleshooting, cloud and on-premise development, production support, ETL workflows, containerized environments, RESTful services, automated testing and deployments, infrastructure as code, COTS/GOTS integration, documentation, and customer demonstrations. The role requires Python and Linux experience, collaboration across locations, a bachelor’s degree or equivalent relevant experience, U.S. citizenship, and an active Secret clearance with eligibility for TS/SCI.

Analyze network traffic, alerts, and packet data to detect, investigate, and reconstruct cyberattacks. The role validates IDS alerts, performs event correlation and trend analysis, documents incidents, develops mitigation plans, monitors cyber defense activity, identifies exploited weaknesses, and assists with creating detection signatures. It requires active TS/SCI clearance, U.S. citizenship, DHS suitability, relevant cyber defense experience, and either a related bachelor’s degree or extensive network investigation experience.

Develop and sustain cloud engagement kits by designing software, building CI/CD pipelines, managing source control, and implementing infrastructure as code. Responsibilities include application development, integration, testing, troubleshooting production issues, evaluating COTS products, transforming data, and improving development standards. The role requires operational Python experience, containerization knowledge, customer interaction skills, U.S. citizenship, an active Secret clearance, and onsite availability near Arlington, Virginia.

Manages a cybersecurity lab supporting government incident response and mission infrastructure. Responsibilities include Linux and cross-platform systems administration, configuration management, patching, troubleshooting, security monitoring, access control, storage replication, virtualization, and containerized application deployment. Develops automation using OpenShift, Ansible, Docker, Kubernetes, Podman, and Satellite; supports technology implementation, documentation, SOPs, and infrastructure improvements. Requires an active Secret clearance, U.S. citizenship, DHS suitability, and relevant systems administration experience.