Cybersecurity Engineer

Overview
Cybersecurity Engineer
Springfield, VA or St. Louis, MO
Active TS (SCI eligibility) clearance and eligibility to obtain a CI poly

At Bcore, our strength comes from how we deliver impact to the mission. Whether it’s architecting critical IT solutions, producing actionable intelligence, or developing cutting edge technology, we succeed because of the expertise, collaboration, and agility of our teams. Our Mission Services division combines enterprise IT, cloud solutions, Dev Sec Ops , systems engineering, software development, and operational support. Bcore accelerates decisive advantage for warfighters and intelligence professionals by fusing human insight, rapid-fire engineering, precision-measured outcomes, and relentless grit into mission-ready solutions.

Do you want to join a team that is building tailored technical solutions to modernize our government’s mission and our client’s business? Do you have a desire to change how people work? Are you interested in helping to protect our nation’s cyber interests? Join our growing team as a Cybersecurity Engineer
, supporting the NGA customer mission.

What you get to do every day:

This role is responsible for implementing and maintaining cybersecurity controls across enterprise infrastructure, including Windows, Linux, network, virtualization, and cloud environments. The successful candidate will execute RMF continuous monitoring activities, implement STIGs, remediate vulnerabilities, manage POA&Ms, and support Assessment & Authorization (A&A) efforts in accordance with NIST SP 800-53, ICD 503, and DoD security requirements. This is a hands-on technical role requiring experience hardening systems, responding to security findings, supporting enterprise security tools, and collaborating with infrastructure teams to maintain a secure, compliant, and resilient operating environment.

Specific

Duties and Responsibilities:

• Act as the representative of the Information System Security Manager (ISSM), ensuring compliance with DoD and Intelligence Community (IC) information security policies, procedures, and directives.
• Support efforts to operate, maintain, and dispose of information system materials in accordance with RMF, NIST, ICD 503, and applicable security directives, policies, and System Security Plans (SSPs).
• Implement and maintain Security Technical Implementation Guides (STIGs) across Windows, Linux (RHEL), network, virtualization, and cloud environments to ensure compliance with DoD security requirements.
• Execute technical remediation activities to address security findings identified through ACAS, STIG reviews, vulnerability scans, and security assessments.
• Manage assigned Plan of Action and Milestones (POA&Ms) by implementing technical solutions, validating remediation efforts, documenting completion evidence, and supporting POA&M closure.
• Support RMF continuous monitoring activities by implementing required security controls, maintaining A&A documentation, and ensuring compliance with NIST SP 800-53 and ICD 503 requirements.
• Generate and implement required cybersecurity awareness training, ensuring users understand their security responsibilities prior to system access.
• Initiate protective and corrective measures when security incidents, vulnerabilities, or compliance issues are identified.
• Ensure IA hardware, software, and operating systems comply with approved security configuration guides and organizational security baselines.
• Implement and enforce IA policies and procedures as defined by RMF authorization packages and A&A documentation.
• Ability to work on multiple projects simultaneously in a dynamic, fast-paced, team-oriented environment.
• Perform Operations & Sustainment (O&S) functions for enterprise network security infrastructure, including firewalls, web gateways, mail gateways, IDS/IPS, load balancers, performance monitoring tools, and management systems.
• Perform maintenance, hardening, patching, and advanced configuration of security infrastructure to protect enterprise networks from emerging cyber threats.
• Support and secure Cloud Infrastructure, including AWS-based technologies.
• Utilize enterprise security tools such as ACAS,…