Cybersecurity Engineer SME

Advance your career while impacting our national security in cyber as a Cybersecurity Engineer Subject Matter Expert (SME) at GDIT. Here, technologists have many paths to grow a meaningful career supporting cyber missions and operations across the federal government.

We are seeking a Cybersecurity Engineer SME to serve as the senior cybersecurity authority supporting a mission-critical defense program in Oahu, Hawaii. This role is responsible for enterprise cybersecurity architecture, risk management, compliance oversight, incident response leadership, and long-term security modernization strategy across classified and unclassified environments. 

The ideal candidate is a strategic cybersecurity leader with deep technical expertise, experience operating within DoD frameworks, and the ability to advise senior government leadership on risk posture and mission assurance. 

Key Responsibilities 

• Develop and implement enterprise cybersecurity strategy aligned with DoD policies and mission objectives.
• Lead cybersecurity architecture reviews and approve technical security designs.
• Establish security baselines and ensure enforcement across systems and networks.
• Drive long-term modernization initiatives to enhance security posture and resilience. 
• Lead Risk Management Framework (RMF) activities, including system categorization, control implementation, assessment support, and ATO package development.
• Ensure compliance with applicable DoD cybersecurity directives and DISA STIG requirements.
• Conduct risk assessments and develop mitigation strategies.
• Support cybersecurity inspections, audits, and continuous monitoring efforts. 
• Oversee cybersecurity operations including monitoring, detection, and response.
• Lead incident response efforts for cyber events affecting mission systems.
• Conduct root cause analysis and coordinate remediation actions.
• Develop and maintain incident response plans and playbooks. 
• Architect and secure enterprise environments including:
  • Network security (firewalls, IDS/IPS, segmentation)
  • Endpoint security (EDR/XDR)
  • Identity and Access Management (IAM)
  • Cloud security (AWS GovCloud, Azure Government)
  • Data protection and encryption 
• Integrate Zero Trust principles where applicable.
• Ensure secure configuration management and vulnerability remediation.  
• Develop cybersecurity policies, standards, and standard operating procedures (SOPs).
• Provide executive-level briefings on cybersecurity posture, risks, and mitigation strategies.
• Maintain accurate system security documentation and reporting metrics.  
• Provide technical oversight to cybersecurity engineers and analysts.
• Mentor junior staff and promote cybersecurity best practices across the program.
• Collaborate with network, systems, cloud, and application teams to ensure secure system integration.

Required Qualifications

• Active Top Secret clearance (SCI eligibility strongly preferred).
• Bachelor’s degree in Cybersecurity, Computer Science, Engineering, or related discipline (Master’s preferred).
• 15+ years of progressive cybersecurity experience.
• Demonstrated experience supporting DoD or federal IT environments.
• Deep understanding of:
  • Risk Management Framework (RMF)
  • Continuous monitoring and vulnerability management
  • Network and endpoint security technologies
  • Secure system architecture
  • Incident response methodologies 
• Experience supporting classified network environments (e.g., SIPR, JWICS, or equivalent). 

Certifications (Preferred / Desired) 

• CISSP (highly preferred)
• CISM or CRISC
• CASP+ or Security+
• CEH or equivalent incident response certification
• CCSP (for cloud security environments)

Preferred Qualifications 

• Experience supporting Pacific or INDOPACOM-aligned missions.
• Experience implementing Zero Trust architectures.
• Familiarity with cross-domain solutions.
• Experience securing hybrid cloud and on-premises environments.
• Prior experience leading cybersecurity modernization initiatives on large defense contracts. 

GDIT IS YOUR PLACE

At GDIT, the mission is our purpose, and our people are at the center of everything we do.

• Growth: AI-powered career tool that identifies career steps and learning opportunities
• Support: An internal mobility team focused on helping you achieve your career goals
• Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
• Community: Award-winning culture of innovation and a military-friendly workplace

OWN YOUR OPPORTUNITY

Explore a career in cyber at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your focus on defending and protecting what matters.

#DefendTheIndoPacific