Network Cybersecurity Engineer (Palo/Cisco)

Public Trust: None

Requisition Type: Regular

Your Impact

Own your opportunity to be at the center of GDIT’s business operations. Make an impact by collaborating across functions to make mission success achievable.

Job Description

CYBERSECURITY ENGINEER SENIOR / ANALYST

Advance your career while impacting our national security in cyber as a Cybersecurity Engineer Senior at GDIT. Here, technologists have many paths to grow a meaningful career supporting cyber missions and operations across the federal government. Own your career as a Cyber Security Engineer/Analyst at GDIT. Here, you’ll have the opportunity to build strong lines of cyber defense using cutting-edge technologies. Your work in cyber security at GDIT will have an impact on securing our clients’ missions and ensuring we anticipate the threats of tomorrow.

MEANINGFUL WORK AND PERSONAL IMPACT

As a Cybersecurity Engineer, the work you’ll do at GDIT will be impactful to the mission of our Federal, Intelligence and Defense customers. You will play a crucial role in supporting GDIT’s ability to conduct internal research and development (IR&D) building Digital Accelerators, Platforms and Mission Solutions within Emerge Labs. Emerge Labs is a multi-tenant, hybrid, multi-cloud lab environment with physical datacenter spaces located at our Falls Church, VA Headquarters campus.

As a Cybersecurity Engineer, you will be responsible for defending GDIT’s enterprise, R&D, lab, and program environments through the deployment, configuration, and operation of advanced cloud-native, network, and endpoint security tools. This role is operationally focused supporting secure, agile mission delivery across traditional IT, hybrid cloud, containers, and emerging AI workloads assessments. You will apply deep technical expertise in firewall & threat management, containerized workloads, and cloud-native defense tooling while collaborating with engineers, ISSM, ISSOs, and security leadership to maintain compliance with NIST 800-171 and protect mission-critical systems. You will apply deep technical expertise in network defense, firewall management, and threat management while collaborating with engineers, ISSM, ISSOs, and security leadership to maintain compliance with NIST SP 800-171 and protect mission-critical systems.

This position requires strong hands-on skills to effectively identify, assess, and manage risks across information systems. You will play a central role in daily security operations and oversight , ensuring the security posture of systems remains resilient. This role requires hand-on knowledge of cybersecurity network and application defense focused on firewalls, web application firewalls (WAF), SASE, and cloud native cybersecurity, TLS, and FIPS/PQC implementation.

The role will also lead and contribute to the successful rollout and operationalization of GDIT’s Enterprise Strategy through the participation in or support of Centers of Excellence (COEs), pursuit teams, Digital Accelerators, and Solution Partner Program.

Key Responsibilities

Administer, configure, and optimize Cisco ASA/FTD firewalls, Cisco Secure Firewall Management Center (FMC), and Palo Alto Networks NGFWs for perimeter defense, VPN enforcement, and secure segmentation.

Deploy, configure, and operate cloud-native security services including AWS Security Hub, Inspector, GuardDuty, and CloudTrail, integrating with SIEMs and automated workflows for real-time risk management.

Support container and Kubernetes security through secure image baselining, runtime monitoring, vulnerability scanning, and policy enforcement across hybrid and cloud environments.

Perform AI/ML and RAG security assessments, ensuring responsible use of AI by evaluating data exposure risks, model integrity, and secure API integration.

Design, implement, and enforce firewall policies, intrusion prevention rules, and threat signatures to block malicious traffic, secure remote access, and defend against APTs and insider threats.

Conduct proactive network and cyber defense operations, including traffic inspection, packet capture analysis, and dynamic threat hunting.

Operate and tune Splunk SIEM for log aggregation, correlation, and advanced analytics; integrate with threat intelligence for faster incident triage.

Deploy and manage CrowdStrike Falcon EDR for endpoint protection and Qualys for vulnerability scanning, remediation, and compliance validation.

Execute real-time monitoring, alert triage, and escalation through SOC operations to detect, contain, and respond to cyber incidents.

Lead and support incident response efforts, including forensic analysis, threat containment, system recovery, and after-action reviews.

Maintain and validate System Security Plans (SSPs), POA&Ms, and firewall/network documentation aligned with compliance and operational requirements.

Collaborate with program teams to adapt security controls and firewall policies to dynamic research labs, development networks, and production environments.

Drive continuous improvement through automation of firewall policies, cloud security posture management (CSPM), and vulnerability remediation workflows.

Contribute to modernization initiatives across identity and access management, encryption, logging, cloud-native defense, and AI/ML governance to ensure resilience and compliance.

WHAT YOU’LL NEED TO SUCCEED
Bring your cyber expertise and drive for innovation to GDIT. The Cybersecurity Engineer Senior must have:
● Education: Bachelor of Arts/Bachelor of Science
● Experience: 5+ years of related experience

● US Person
● Technical skills: Advanced Technical Skills in Firewalls, Cloud Native Security Services, Hardening, and Encryption.
● Role requirements: Hybrid with the ability to Travel to Falls Church, VA and/or when required to support other engagements.

● Preferred but not required: Secret clearance or higher

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.

Work Requirements

Years of Experience

5 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

Certified Information Systems Security Professional (CISSP) | International Information System Security Certification Consortium (ISC2) - International Information System Security Certification Consortium (ISC2)

CompTIA Security+ CE | CompTIA - CompTIA

Travel Required

Less than 10%