Senior Security Systems Developer

Role Overview

• Design hardware, operating systems, software applications and secure interfaces to meet cybersecurity requirements across information systems, physical systems and embedded technologies.
• Perform risk analysis (threat, vulnerability and probability of occurrence) when applications or systems undergo major changes and develop mitigation strategies for cost, schedule, performance and security risks.
• Conduct security reviews to identify gaps in architecture, recommend security changes to system components and incorporate vulnerability solutions into system designs.
• Design, develop, integrate and update system security measures that support confidentiality, integrity, availability, authentication and non-repudiation.
• Develop detailed security design documentation for components and interfaces, including functional descriptions of security implementation and keep documentation current.
• Identify components and elements, allocate security functions and describe relationships between system elements; trace requirements to design components and perform gap analysis.
• Implement security designs for new or existing systems and direct remediation of technical issues discovered during testing and implementation (including interoperability and protocol issues).
• Develop and direct system testing and validation procedures and documentation; analyze test data and translate results into evaluative conclusions.
• Identify, assess and recommend cybersecurity or cybersecurity-enabled products for system use, ensuring compliance with organizational evaluation and validation requirements.
• Provide input to implementation plans, SOPs, RMF process activities and documentation and support security/certification test and evaluation activities.
• Build, test and modify prototypes using working or theoretical models; use models and simulations to predict performance under different operating conditions.
• Verify stability, interoperability, portability and scalability of the system architecture and security design.

Requirements

• 7+ years of relevant experience
• Proven ability to analyze complex requirements and translate them into clear, actionable tasks and processes through critical thinking
• Applicants must be a U.S. citizen and eligible to obtain and maintain a security clearance, in compliance with federal contract requirements.
• Deep expertise in information security systems engineering principles, specifically NIST SP 800-160 and the application of security models such as Bell-LaPadula, Biba and Clark-Wilson.
• Proficiency in enterprise architecture methods (e.g., TOGAF, DoDAF, FEAF) and secure configuration techniques, including STIGs and CIS best practices.
• Mastery of network security architecture (defense-in-depth), traffic flow analysis (TCP/IP, OSI model) and identity management protocols (PKI, Oauth, SAML, SPML).
• Advanced knowledge of firewalls, DMZs, encryption algorithms and access authentication methods across both standard and specialized (ICS/SCADA) environments.
• Skill in applying mathematics (linear algebra, statistics, calculus, operational analysis) and Information Theory to solve problems in data compression, resiliency and system performance.
• Strong understanding of PII and PCI data security standards, alongside the legal and ethical policies governing cybersecurity and privacy.

Tech Stack

• Cyber Security
• Firewalls
• TCP/IP

Benefits

• 18 days of PTO
• 11 holidays
• 85% of insurance premium covered
• 401k
• continued education
• certifications maintenance and reimbursement
• more