Senior Network Engineer

Posted Yesterday
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Rockville, MD, USA
In-Office
122K-166K Annually
Senior level
Aerospace • Information Technology • Professional Services • Security • Software
The Role
Designs, implements, and maintains enterprise LAN/WAN and network security (Zscaler, firewalls, VPNs). Troubleshoots complex IPv4/IPv6 issues, manages RSA SecurID, Cisco gear, SolarWinds scripts, and monitors performance. Ensures compliance, documentation, upgrades, vulnerability remediation, and coordinates procurement and after-hours maintenance windows.
Summary Generated by Built In

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

None

Clearance Level Must Be Able to Obtain:

None

Public Trust/Other Required:

NACI (T1)

Job Family:

IT Infrastructure and Operations

Job Qualifications:

Skills:

Network Engineering, RSA SecurID, VPN Troubleshooting, Zscaler (Inactive)

Certifications:

None

Experience:

8 + years of related experience

US Citizenship Required:

No

Job Description:

The Senior Network Engineer will support Health Resources & Services Administration (HRSA) projects by providing hands-on expertise in the design, implementation, and management of enterprise network infrastructure. This role works closely with Project Managers and cross-functional teams to deliver complex initiatives, ensuring high availability, security, and performance of network systems.

HOW YOU WILL MAKE AN IMPACT:

  • Design, plan, implement, and maintain of enterprise LAN/WAN, Zscaler, and network security infrastructure
  • Configure and manage routers, switches, firewalls, and remote access systems in support of secure and scalable network operations
  • Implement and support RSA SecurID / RSA Authentication Manager solutions, including integration with VPNs, RADIUS, and enterprise authentication systems
  • Design, implement, and troubleshoot IPv4 and IPv6 network architectures, ensuring seamless integration and scalability across environments
  • Provides innovative methods and technical solutions using the engineering design process.
  • Collaborate closely with Project Managers, engineers, and stakeholders to deliver complex network projects on time and within scope
  • Analyze customer and business requirements to develop technical solutions for complex networking challenges
  • Ensure network integrity, security, and compliance with federal and organizational policies, including backup and recovery capabilities
  • Monitor network performance using industry-leading tools, proactively identifying and resolving issues
  • Plan and execute network upgrades, enhancements, and technology refresh initiatives
  • Evaluate and recommend emerging technologies to improve network performance, security, and scalability
  • Coordinate procurement of network hardware, software, and vendor/subcontractor services as needed
  • Develop and maintain network documentation, diagrams, and standard operating procedures.

WHAT YOU NEED TO SUCCEED:

  • Bachelor's degree or equivalent combination of education and experience.
  • 8+ years' experience in network engineering, as described below
  • Experience supporting federal or enterprise-level IT environments
  • Strong problem-solving, communication, and organizational skills

TECHNICAL REQUIREMENTS:

  • Strong experience in network engineering and architecture (LAN/WAN, routing/switching, firewalls, Zscaler)
  • Hands-on experience with RSA SecurID / RSA Authentication Manager and network authentication protocols (RADIUS, LDAP)
  • Expert with Cisco switches network software upgrades
  • Troubleshoot complex network issues (Expert)
  • Vulnerability Remediation Process
  • Update technical documentation, maintaining & implementation of the SOP for network security (A Must)
  • Cisco IPsec VPN troubleshooting
  • Cisco Identity Services Engine (ISE)
  • SolarWinds automation scripts
  • Cisco ASA Firewall  5500 / Firepower  (A Must)
  • Palo Alto Firewalls Panorama
  • Azure experience with NSGs (Networking)
  • Analyzing PCAP Files using Wireshark
  • Change Management Process
  • TLS certificates renewals and installs
  • Troubleshooting using Riverbed, Grafana or Cribl, and other tools as available
  • Must be willing to work after hours and weekends during maintenance windows (onsite) as-needed (A Must) - approximately every 9 weeks

LOCATION: Rockville, MD (onsite)

CLEARANCE:

Ability to obtain a Public Trust: candidate must have lived in the United States at least three (3) out of the last five (5) years and pass a public trust background investigation.

GDIT IS YOUR PLACE:

  • 401K with company match
  • Comprehensive health and wellness packages
  • Internal mobility team dedicated to helping you own your career
  • Professional growth opportunities including paid education and certifications
  • Cutting-edge technology you can learn from

#FedHealthJobs

#GDITPriority

The likely salary range for this position is $122,400 - $165,600. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly Hours:

40

Travel Required:

None

Telecommuting Options:

Onsite

Work Location:

USA MD Rockville

Additional Work Locations:

Total Rewards at GDIT:

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

 



Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work:

We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

Join our Talent Community to stay up to date on our career opportunities and events at

gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

Skills Required

  • 8+ years of network engineering experience
  • Bachelor's degree or equivalent combination of education and experience
  • Ability to obtain Public Trust (NACI T1) and have lived in the U.S. 3 of last 5 years
  • Experience supporting federal or enterprise-level IT environments
  • Design, implement, and maintain enterprise LAN/WAN, routing/switching, IPv4 and IPv6
  • Hands-on experience with RSA SecurID and RSA Authentication Manager
  • Experience with Zscaler
  • Experience with Cisco switches and network software upgrades
  • Experience with Cisco ASA 5500 and Firepower (A Must)
  • Cisco IPsec VPN troubleshooting
  • Cisco Identity Services Engine (ISE) experience
  • SolarWinds automation scripting experience
  • Palo Alto Firewalls Panorama experience
  • Azure experience with Network Security Groups (NSGs)
  • Ability to analyze PCAP files using Wireshark
  • Experience with RADIUS and LDAP authentication protocols
  • TLS certificate renewals and installations
  • Experience troubleshooting using Riverbed, Grafana, or Cribl
  • Vulnerability remediation and change management process experience
  • Update technical documentation and maintain SOPs for network security (A Must)
  • Willingness to work after hours and weekends during maintenance windows onsite (~every 9 weeks) (A Must)
  • Onsite work in Rockville, MD

General Dynamics Information Technology Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about General Dynamics Information Technology and has not been reviewed or approved by General Dynamics Information Technology.

  • Affordable Benefits Pay and benefits are described as good or okay in multiple places, and the overall package is often portrayed as acceptable even when base pay is not viewed as top-tier.
  • Healthcare Strength Medical, dental, and vision plan options are presented as comprehensive, with additional protections like disability and life insurance contributing to a well-rounded health and protection offering.
  • Retirement Support A 401(k) plan with company match is consistently highlighted as part of the total rewards package, supporting longer-term financial planning.

General Dynamics Information Technology Insights

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The Company
HQ: Falls Church, VA
21,625 Employees

What We Do

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

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