Cybersecurity Engineer, Senior

GDIT is seeking qualified candidates to support the Missile Defense Agency (MDA) Integrated Research and Development for Enterprise Solutions (IRES) contract.

Qualified candidates will provide integrated solutions supporting concurrent test, training, and operations (CTTO) within the Missile Defense Integration and Operations Center (MDIOC) mission execution platform and enterprise communications and information technology (IT) environment.

Be a part of the GDIT Team that solve some of the world's most complex technical challenges! General Dynamics Information Technology (GDIT) is seeking a Cybersecurity Engineer, Senior to support the IRES program in Huntsville, Alabama.

Duties Include: 

• Design and maintain secure, scalable network architectures across cloud, hybrid, and on-premise environments. Define principles, standards, and reusable frameworks

• Lead the implementation of Zero Trust Network Architecture (ZTNA), micro segmentation, and identity-aware access controls for modern enterprise and remote work environments

• Develop and implement automated solutions for network provisioning, configuration management, and security enforcement using tools such as Terraform, Ansible, or Python

• Design secure connectivity and protection mechanisms within cloud-native environments (Azure, AWS, GCP), including VPCs, firewalls, transit gateways, and cloud-based WAFs

• Contribute to Agile project teams by embedding security into iterative solution delivery. Collaborate with DevOps and platform teams to integrate network security controls into CI/CD pipelines

• Perform security threat modeling for network systems. Contribute to security assessments, mitigation plans, and incident response strategies

• Architect and oversee implementation of VPNs, SD- WAN, SASE, NAC, and next-gen firewalls to support secure access and business continuity

• Ensure designs align with enterprise security policies, compliance requirements (e.g., NIST, ISO 27001, PCI-DSS), and architecture governance standards

Basic Qualifications:

• Bachelor’s or Master’s degree in Cybersecurity, Computer Science, Network Engineering, or a related field; additional years of experience may be considered in lieu of degree

• 8+ years of experience in network security, cybersecurity architecture, or network engineering—including 3+ years in a design or architecture-focused role.

• Advanced knowledge of network protocols, routing/switching, encryption, segmentation, and identity-aware access.

• Hands-on experience with technologies such as Cisco, Palo Alto, Fortinet, Zscaler, Cloudflare, and SD-WAN solutions.

• Deep expertise in securing cloud-native platforms (Azure, AWS, GCP)—including VPC design, security groups, transit gateways, and cloud firewalls.

• Experience with security automation tools (e.g., Terraform, Ansible, PowerShell, Python).

• Strong understanding of Agile methodologies, including participation in Scrum, SAFe, or Agile delivery teams.

• Familiarity with frameworks such as MITRE ATT&CK, NIST CSF, Zero Trust,and architectural models (e.g., TOGAF, SABSA).

• Applicable DOD 8140 and professional certifications

• Relevant certifications such as: CISSP, CISSP-ISSAP, GIAC (GCPN, GCIA); Cisco CCNP/CCIE Security, Azure/AWS Security Specialty; TOGAF, Certified Cloud Security Professional (CCSP); DevSecOps or cloud-native architecture certifications

• Active SECRET clearance with eligibility for TOP SECRET/SCI

WHAT CAN GDIT OFFER YOU?

• Excellent customizable health benefits (Medical, Dental and Vision)

• 401K with company match

• Educational Assistance and eLearning

• Flexible work week

• Internal mobility team dedicated to employee advancement

• Rewards and Recognition programs

• Innovative and collaborative environment encouraging highly motivated critical thinking