Cyber Capability Developer - Senior

About NDi

Network Designs, Inc. (NDi) is a leading Federal contractor that specializes in designing, developing, and delivering information technology and network solutions for government customers. Founded in 1985, NDi's firmly defined core values have driven all aspects of the business, which have been paramount to our company's success and the establishment of an enjoyable workplace atmosphere. At NDi, we believe that our people are the cornerstone of our success, and we value collaboration, career growth, and winning ideas.

Military veterans are encouraged to apply.

As a Cyber Capability Developer III, you will research, develop, and execute specialized operational and analytic capabilities to support technical operations in solving unique challenges posed by criminal and national security actors. You will build advanced tools and capabilities for tactical teams performing incident response and computer network operations and exploitation (CNO/CNE). This role requires expertise in both offensive and defensive cyber security tools, network topologies, and secured networks to deliver innovative solutions for mission‑critical operations.

The scope of this effort involves software engineering and development at both the user and kernel levels; configuring and managing complex network environments; management of covert and virtualized systems; vulnerability research and analysis; and use of open‑source penetration testing tools.

• US Citizenship is required.
• Must possess an active TS clearance at the time of application, be willing and able to obtain SCI access, and pass a CI polygraph.
• This position is onsite 5 days a week in Chantilly, VA.

• Bachelor's degree or master's degree with 8 years of experience of experience OR associate degree with 11 years of experience OR High School/Diploma with 14 years of experience.
• Solid understanding of forensic and investigative data requirements.
• Demonstrated experience designing and implementing software solutions in secure government environments.
• Advanced programming with focus on rapid software prototyping.
• Exploit development and sophisticated vulnerability research.
• Advanced network analysis and protocol manipulation for attribution management.
• Tool development for specialized cyber operations and cyber effects.
• Custom data processing and analytics pipelines through secure channels.
• Secure coding practices for operational tools in classified environments.
• Advanced endpoint detection and response application development.
• Development of sophisticated detection avoidance techniques.
• Experience with mixed vendor/platform environments, including COTS, GOTS, and custom developed tools.
• Digital forensics tools and techniques for complex investigations.
• Memory analysis and disk forensics in adversarial environments.
• Threat intelligence platforms and integration.
• Encryption and obfuscation techniques for secure communications.
• Incident response methodologies in high-stakes environments.
• Participation in capture the flag exercises, bug bounty programs, and security conferences.
• Advanced application of risk assessment methodologies.
• Complex malware analysis, digital forensics, and software reverse engineering.
• Management of high-security virtualized environments.

• Build and test operational prototypes for tactical teams responding to sophisticated cyber threats.
• Conduct analysis of case and intelligence related cyber data to develop advanced analytical tools.
• Configure and manage complex routing and switching fabrics with significant segmentation, including managed attribution of individual network paths.
• Set up and maintain firewall, VPN, proxy, and tunnel configurations for secure operations.
• Implement and manage data ingest pipelines through network diodes for secure data transfer.
• Administer high availability virtualized environments with complex networking configurations.
• Perform research of novel capabilities derived from technical analysis.
• Research emerging technologies, exploitation techniques, and custom tools.
• Perform reverse engineering of cyber actor tools and techniques to…