Jobs at Sentar Inc.

Supports Defense Health Agency RMF and ISSM activities for JOMIS, including authorization packages, SSPs, SCAs, POA&Ms, continuous monitoring, vulnerability analysis, STIG compliance, and security architecture reviews. Advises government stakeholders on cloud, application, container, IAM, zero-trust, DevSecOps, and DDIL security. Maintains documentation in eMASS and related systems while coordinating control validation, remediation, reporting, and ATO activities.

Provides recognized technical or programmatic expertise supporting the U.S. Air Force GBSD/Sentinel program. Responsibilities may span systems engineering, software engineering, information assurance, DevSecOps, requirements management, enterprise architecture, and technical program support. The role requires extensive technical experience, DoD experience, expertise with DOORS, CAMEO, SysML/UML, and an active Secret clearance with SAP/SCI eligibility.

Provides independent office administration support, applying functional and industry knowledge to develop solutions for moderately complex administrative problems. The role requires a high school diploma or GED, at least 10 years of office administration experience, proficiency with Microsoft Office and Outlook, and an active TS/SCI clearance with polygraph.

Supports the Defense Logistics Agency’s cyber defense mission by analyzing and implementing cybersecurity policies, procedures, and processes. Applies DoD cybersecurity policy requirements and provides specialized expertise across cybersecurity operations. The role requires seven years of cybersecurity policy experience and maintaining CSSP Analyst certification for CERT team members. A DoD Top Secret clearance and eligibility for IT-I Critical Sensitive/Tier 5 are required.

Analyze operational technology cyber threats and vulnerabilities supporting DLA cyber defense operations. Apply threat intelligence, SIEM engineering, incident response, data analysis, NIST incident response practices, MITRE ATT&CK, and PLC/SCADA expertise to protect OT environments and systems.

Develop and maintain SIEM content supporting cybersecurity monitoring and detection for DLA systems. Responsibilities require expertise in incident response, log formats, system and network administration, network architecture, MITRE ATT&CK, scripting, and defense-in-depth cybersecurity operations.

Provides cybersecurity defense support for DLA systems, focusing on threat analysis, incident response, security monitoring, detection, and root-cause analysis. The role requires analyzing cybersecurity incidents, using multiple security-tool types, applying defense-in-depth principles, and developing threat detection and incident response scripts or tools with SPL, Python, or PowerShell. A DoD Top Secret clearance and eligibility for IT-I and SCI access are required.

Conduct threat hunting and analyze attacker techniques across operating systems and large datasets. Develop actionable threat intelligence and hunting-operation narratives using Splunk, Python, PowerShell, and MITRE ATT&CK. Support cybersecurity defense operations involving threat analysis, incident response, security monitoring, detection, and protection of Department of Defense systems.

Serves as the technical authority for cloud defensive cyberspace operations. Develops cloud threat-detection use cases, investigates and responds to incidents, deploys defensive capabilities, and evaluates defenses against Red Team activity. Maintains tactics, techniques, procedures, training, and CSSP accreditation documentation. Presents annual cloud security training and supports government security operations using Azure, Sentinel, Tanium, Defender for Endpoint, Elastic/Kibana, and JRSS tools.

Manages and maintains cloud and on-premises networking environments, including AWS VPC, Azure VNet, routers, switches, firewalls, load balancers, and VPNs. Monitors performance, implements security controls, performs upgrades and capacity planning, maintains network documentation, and troubleshoots connectivity issues. Collaborates with IT teams on network projects and supports high availability, scalability, and reliability. Requires rotational after-hours on-call support and a Secret clearance.

Provide technical engineering support for a complex federal network infrastructure spanning multiple classification-level enclaves. Design, develop, and implement network solutions for an enterprise environment, support the IT lifecycle, and resolve escalated networking issues beyond first- through third-tier support.

Prepares, reviews, revises, and maintains technical, operational, user, training, and acquisition documentation for defense systems and cryptologic programs. Researches complex technical information, collaborates with developers, engineers, and subject matter experts, creates reports and briefings, coordinates document layout, and maintains documentation libraries. Uses Microsoft Office, Visio, SharePoint, Confluence, and similar tools to produce clear materials for technical and end-user audiences.

Develop, maintain, and test complex software systems for the GBSD/Sentinel program. Implement algorithms, handle real-time and large-data processing, design software components, resolve defects, and participate in lifecycle activities using MBSE, OOP languages, and structured development processes.

Support GBSD/Sentinel systems engineering: analyze user requirements and architectures, develop system requirements and design, produce technical and architecture documentation, integrate new designs into operations, and ensure technical integrity of systems engineering deliverables.

Support and manage information assurance for systems/enclaves: implement and enforce security policies, perform RMF-based authorization activities, conduct vulnerability/risk assessments, manage configuration and changes, prepare SSP/C&A/SRTM documentation, evaluate security solutions for classified processing, and provide day-to-day security operations and oversight.

Lead Information Systems Security Engineer responsible for designing, building, and sustaining DSCA's security automation architecture in AWS. Translate RMF/NIST/DISA STIG regulatory requirements into Policy-as-Code and automated operational code. Serve as lead technical authority for enterprise-level cloud security engineering, configuration management, compliance validation, and orchestration.

Perform data extraction (including VPN data), integrate into databases, and analyze datasets using statistical and computational methods. Apply knowledge of DX, XKS, and CASNs to guide data selection, build analytic models, and produce actionable insights. Translate mission needs into technical requirements and communicate results to non-technical stakeholders while accounting for government data constraints.

Lead end-to-end capture and business development for DoD/IC cybersecurity, intelligence, software, and mission systems opportunities. Own opportunity identification, customer engagement, capture strategy, proposal writing, pricing coordination, teaming, gate reviews, bid/no-bid decisions, and closing deals in a lean, hands-on environment.

Lead and oversee contractor and subcontractor activities to satisfy PWS requirements. Serve as primary decision-maker for contractor, manage communications with Government, monitor performance and finances, track requirements and metrics, and ensure quality and efficiency of program execution.

Serve as primary contractor point of contact and overall manager for XT-CS-CIO efforts. Lead cybersecurity strategy, implement frameworks (NIST/ISO/CMMC), oversee risk assessments, audits, vendor management, cross-team coordination, crisis response, and ensure contractor performance and financial/business support per the PWS.