System Cybersecurity Engineer, Senior

HX5 is an award-winning provider of engineering, research and development, and technical services to clients such as NASA and the Department of Defense. Founded in 2004, HX5 is a fast-growing veteran- and woman-owned company with locations nationwide. HX5 is recruiting for a System Cybersecurity Engineer to join the team. In this role, you will be a hands-on cybersecurity subject matter expert responsible for the full integration of cybersecurity across all phases of the system lifecycle- from acquisition and design through development, testing, fielding, operations, sustainment, and compliance assessment. You will operate at the intersection of system engineering and cybersecurity, ensuring that mission-critical systems remain secure, compliant, and operationally resilient. All work will be performed in alignment with contract requirements and coordinated by the Information System Security Managers (ISSMs). Essential Duties and Responsibilities: - Performing risk assessment and vulnerability management: Identifying, evaluating, and prioritizing security vulnerabilities across the organization's digital infrastructure. - Implementing and maintaining robust technical defenses to protect critical assets and secure infrastructure. - Monitoring and incident response: Continuously monitoring for potential threats and responding quickly to security incidents to minimize damage and restore operations. - Training and awareness: Educating employees and customers on cyber risks and promoting security through training and awareness programs. To include taking the required Government Training required by the DET 5 and other specific training on the DET 5s my Learning page. - Ensuring compliance with cybersecurity requirements and regulations like Annual Control Validations, Cyber risk assessments. - Third-party risk management: Managing the security of vendors and partners to prevent potential security vulnerabilities. - - Registering, reviewing, and maintaining system Ports, Protocols, and Services Management (PPSM) data. Ensuring all boundary defenses (firewalls, routers) are configured in accordance with DISA PPSM Category Assurance List (CAL) requirements. - Identifying and implementing process improvements within the Agile Kanban construct to streamline the RMF lifecycle. Actively seek to reduce bottlenecks in artifact collection and eMASS package processing, ensuring a smooth and predictable workflow for the cybersecurity team and mission stakeholders. - Evaluating Engineering Change Proposals (ECPs) at the Engineering Review Board (ERB) level. - Conducting early-stage Security Impact Analysis (SIA) to identify RMF control implications and ensure technical requirements for NCMC-ITW/AA and Legacy Space systems are met before development begins. Education and Experience: Must have one of the following combinations of education and experience: - 15 years' directly related experience with proper certifications as described in the functionally aligned job description, 8 of which must be in the DoD; OR, - BA/BS degree and 12 years of experience in the respective technical/professional discipline being performed, 5 of which must be in the DoD; OR, - MA/MS degree and 10 years of experience in the respective technical/ professional discipline being performed, 5 of which must be in the DoD - Hold DoD Manual 8140.03 / 8570.01-M baseline certification requirements for Information Assurance Technical (IAT) Level III or Information Assurance Management (IAM) Level II/III (e.g., CISSP, CASP+, CISM). - Hold or be actively pursuing security-related professional certifications within the GIAC family of certifications or CISSP, CISM or CISA Position Type/Expected Hours of Work: This is a full-time position requiring 40 hours per week and offers a flexible work schedule Mond y through Friday during core business hours. Other Position Requirements: - Proof of U.S. Citizenship or US Permanent Residency is a requirement for this position. - Must be able to complete a U.S. government background investigation. - Must be able to obtain a Top Secret clearance. - Must be able to travel, up to 25% including air travel. HX5 offers a competitive salary and benefits package to include: - Medical/Dental/Vision Insurance - 401(k) plan with Company Match - Paid Holidays - Paid Time Off - Parental Leave - Life Insurance - Tuition Reimbursement - Medical and Dependent Care Flexible Spending Accounts - Pet Insurance HX5, LLC is an Equal Opportunity Employer that recruits and hires qualified candidates without regard to race, religion, sex, age, national origin, ancestry, citizenship, disability, or veteran status. HX5, LLC is a Drug Free Workplace Employer. ACCESSIBILITY NOTICE: If you need a reasonable accommodation for any part of the employment process due to a physical or mental disability, please call (850) 362-6551.