Sr. Cyber Security Engineer

Optimal Solutions & Technologies (OST, Inc.) is focused on excellence. We specialize in providing Management Consulting, Information Technology, and Research Development and Engineering services.

The fundamental distinction of the OST team is its business knowledge in both the public and private sectors. We serve the aerospace & transportation, association & nonprofit, defense, education, energy, financial, healthcare, and technology & telecommunications industries. OST is successful because we listen to our clients, we learn from our clients, and we know our clients.

Cyber Security Engineer - Senior

Job Duties (Description of specific duties in a typical workday for this position):

• Provide leadership in designing, assessing, and implementing administrative, physical, and technical security controls across the ATIS portfolio.
• Ensure compliance with DoD Risk Management Framework (RMF) and protect the confidentiality, integrity, and availability of Army systems.
• Conduct independent security assessments and testing to identify risks and recommend mitigation strategies.
• Manage the Plan of Action and Milestones (POAM) process, ensuring timely resolution of security gaps.
• Act as a technical advisor for RMF controls, collaborating closely with the ISSM to maintain eMASS records.
• Perform IV&V testing, document compliance findings, and support continuous monitoring requirements.
• Lead risk assessments of third-party systems, identifying vulnerabilities and recommending remediation strategies.
• Conduct system security scans and vulnerability assessments to maintain DoD cybersecurity compliance.
• Define and update cybersecurity standards, policies, and operational procedures.
• Advise and support incident response efforts, including investigation and process improvement.
• Collaborate with stakeholders to implement advanced security technologies including encryption, remote access, and antivirus systems.

Requirements (Years of experience, Education, Certifications):

• 6+ years of cybersecurity experience.
• Bachelor's degree in Cybersecurity, Computer Science, or related discipline.
• Active Secret or higher clearance.
• IASAE II DoD Approved Baseline Certification (e.g., CISSP, CASP CE, CSSLP).
• Deep understanding of DoD RMF, including security assessment/testing, IAM, and security engineering.
• Proficient in eMASS with the ability to manage compliance records.
• Strong knowledge across all 8 domains of information security:




• Security & Risk Management
• Security Assessment and Testing
• Communications and Network Security
• Software Development Security
• Asset Security
• Identity and Access Management
• Security Architecture and Engineering
• Security Operations

Nice to Have:

• Master's degree or higher in a related field.
• SAFe Agile Practitioner certification.
• AWS Certified Cloud Practitioner (CCP).
• Expertise in securing AWS cloud environments.
• Experience presenting technical information to senior military leadership.

Travel Requirement:

• Up to 10%

This is a full-time position paying a base salary, with full benefits, and has possible bonus potential based on merit and performance. To be considered for this position, please apply online with a resume.

OST is an equal-opportunity employer. Applicants are considered for positions without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other category protected by applicable federal, state, or local law.