Senior Cybersecurity Engineer

Senior Cybersecurity Engineer / Security Architect (MLS & High-Assurance Systems)Location: Hanover, MD (on-site) *** NOT REMOTE***Type: Full-timeClearance Required: No clearance required, must be clearable.About UsEccalon provides global solutions to the most challenging technological issues of the 21st-century, and our evolving portfolio spans five major markets: Machine Learning, Cybersecurity, Aerospace & Defense, Material Sciences, Advance Manufacturing, Sports Science, Biotechnology, and Health & Life Sciences. Visit our website here.Why Join Us?Eccalon's Executives foster a supportive work environment allowing our teams to thrive, and have a fierce dedication to innovation, security, and people. Our culture is built on inclusion, teamwork, trust, and we are committed to offering career advancement opportunities to all employees. Encouraging a healthy and balanced life, we offer an extensive benefits package to support the wellness of our employees and their families. You will be joining a team of innovators, working with cutting edge technologies, supporting mission critical projects, and making an impact.Job DescriptionThe Senior Cybersecurity Engineer / Security Architect is responsible for defining, implementing, and evaluating advanced cybersecurity solutions for high-assurance environments supporting sensitive and classified information. This role requires deep expertise in multilevel security (MLS), security architecture, and risk management, with a strong foundation in NIST and CMMI-aligned cybersecurity programs. The individual will operate independently or as part of a multidisciplinary team, providing technical leadership, mentoring junior staff, and delivering defensible security solutions for complex systems.ResponsibilitiesDefine and document security requirements for high-assurance systems and applications.Evaluate security technologies and products to ensure suitability for classified or sensitive environmentsDesign and implement MLS-compliant security solutions addressing complex data separation and access control challenges.Conduct and support cybersecurity risk assessments aligned to NIST CSF and CMMI maturity models.Provide technical leadership, mentoring, and subject-matter expertise to junior engineers and analysts.Collaborate with stakeholders to ensure security solutions align with mission, compliance, and operational needs.Required QualificationsCore Cyber Security & Information Protection ExperienceMinimum of eight (8) years of experience in information protection, including the design, implementation, and governance of security programs or processes for the protection of sensitive or classified information.Demonstrated experience performing IT risk assessments, threat analysis, and security control evaluations in complex enterprise or government environments.Proven ability to work independently or under general supervision, contributing as a senior technical resource on cybersecurity initiatives.Experience coaching and mentoring junior technical staff, providing guidance in highly specialized security disciplines.Security Architecture & Requirements DefinitionAt least eight (8) years of specialized experience in:Defining computer security requirements for high-level or mission-critical applications.Evaluating and validating approved security product capabilities.Designing and implementing solutions to Multilevel Security (MLS) problems.Hands-on experience translating mission, system, and regulatory requirements into enforceable security architectures and technical controls.Frameworks, Standards, and Maturity ModelsDemonstrated experience supporting or delivering cybersecurity projects aligned to:NIST Cybersecurity Framework (NIST CSF)Capability Maturity Model Integration (CMMI)Hands-on experience translating mission, system, and regulatory requirements into enforceable security architectures and technical controls.Specialized Technical DisciplinesPenetration testing and adversarial security assessments.Intrusion detection, security monitoring, and audit log analysis.Public Key Infrastructure (PKI) and certificate-based trust models.Cryptography and cryptographic key management.Strong authentication mechanisms and identity assurance.Multilevel Security (MLS) architectures and trusted systems design.EducationBachelor’s degree from an accredited college or university in Engineering, Computer Science, Information Systems, Business, or a closely related discipline.Preferred QualificationsStrong analytical and problem-solving skills in complex, high-risk environments.Ability to communicate technical security concepts clearly to both technical and non-technical audiences.Experience operating in regulated, government, or defense-related environments.