Type of Requisition:
RegularClearance Level Must Currently Possess:
NoneClearance Level Must Be Able to Obtain:
NonePublic Trust/Other Required:
NACI (T1)Job Family:
IT Infrastructure and OperationsJob Qualifications:
Skills:
Network Engineering, RSA SecurID, VPN Troubleshooting, ZscalerCertifications:
NoneExperience:
8 + years of related experienceUS Citizenship Required:
NoJob Description:
GDIT is seeking a Senior Network Engineer with deep Zscaler expertise to support the Health Resources & Services Administration (HRSA). You will own the design, operation, and security of HRSA's Zscaler environment while supporting the broader enterprise LAN/WAN, firewall, and remote-access infrastructure. This is a hands-on engineering role working directly with Project Managers, the Office of Information Security and Privacy (OISP), and desktop/server support teams.
How you will make an impact
- Administer, upgrade, and optimize Zscaler Internet Access (ZIA), Private Access (ZPA), and Digital Experience (ZDX), including major/minor releases, reporting, and security blocks.
- Create and maintain ZIA security policies (SSL inspection, URL filtering, DLP, CASB, app control, advanced threat protection) in partnership with OISP.
- Maintain SSO integration between Zscaler and HRSA's Identity Provider (Okta), including SAML attributes and SCIM provisioning.
- Conduct Zscaler Best Practices Assessments and Security Lifecycle Reviews; recommend and implement ruleset changes as security and networking requirements evolve.
- Develop troubleshooting playbooks for Zscaler Client Connector issues and support endpoint and server teams.
- Design, implement, and maintain enterprise LAN/WAN, routing/switching, firewalls, and remote access (IPv4/IPv6).
- Support RSA SecurID / Authentication Manager and its integration with VPN, RADIUS, and LDAP.
- Monitor network performance, lead upgrades and technology refreshes, and coordinate hardware/software procurement as needed.
- Deliver ad-hoc Zscaler reports for leadership and maintain network documentation, diagrams, and SOPs.
What you need to succeed
- Bachelor's degree or equivalent combination of education and experience.
- 8+ years of network engineering experience, including 5+ years hands-on administering Zscaler (ZIA, ZPA, ZDX).
- Strong SASE architecture knowledge and proven Zscaler policy expertise: SSL inspection, URL filtering, DLP, CASB, threat protection.
- Experience integrating Okta or another IdP with Zscaler via SAML/SCIM.
- Strong networking fundamentals (TCP/IP, DNS, routing/switching, IPsec VPN, firewalls) and end-to-end connectivity troubleshooting, including PCAP analysis with Wireshark.
- Hands-on experience with Cisco switching/IOS upgrades and at least one enterprise firewall platform (Cisco ASA/Firepower or Palo Alto/Panorama).
- Experience in federal or enterprise environments with strict compliance and 99.9%+ uptime requirements; familiarity with NIST 800-53, TIC 3.0, and CISA BODs.
- Formal change-management experience and TLS certificate lifecycle management.
- Excellent communication, documentation, and collaboration skills.
Preferred qualifications
- Zscaler Certified Cloud Professional (ZCCP) or Zscaler Certified Cloud Administrator (ZCCA).
- Okta Certified Professional or higher.
- Cisco ISE, RSA SecurID, SolarWinds scripting, Azure networking (NSGs), Riverbed, Grafana, or Cribl.
Location: Rockville, MD – onsite 5 days/week
Clearance: Ability to obtain a Public Trust. Must have resided in the U.S. for 3 of the last 5 years and pass a public trust background investigation.
GDIT is your place: 401(k) with company match, comprehensive health and wellness packages, paid education and certifications, internal mobility support, and cutting-edge technology to learn from.
#GDITFedHealthJobs
The likely salary range for this position is $111,350 - $150,650. 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:
40Travel Required:
NoneTelecommuting Options:
OnsiteWork Location:
USA MD RockvilleAdditional 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 technology solutions 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 mission-ready capabilities in AI, cloud, cyber and software development.Join our Talent Community to stay up to date on our career opportunities and events atgdit.com/tc.
Equal Opportunity Employer / Individuals with Disabilities / Protected VeteransSkills Required
- Bachelor's degree or equivalent combination of education and experience
- 8+ years of network engineering experience
- 5+ years of hands-on Zscaler administration, including ZIA, ZPA, and ZDX
- Strong SASE architecture knowledge and Zscaler policy expertise, including SSL inspection, URL filtering, DLP, CASB, and threat protection
- Experience integrating Okta or another identity provider with Zscaler through SAML and SCIM
- Strong networking fundamentals, including TCP/IP, DNS, routing, switching, IPsec VPNs, and firewalls
- End-to-end connectivity troubleshooting and PCAP analysis using Wireshark
- Hands-on Cisco switching and IOS upgrade experience
- Experience with at least one enterprise firewall platform, such as Cisco ASA, Cisco Firepower, or Palo Alto/Panorama
- Experience in federal or enterprise environments with strict compliance and 99.9%+ uptime requirements
- Familiarity with NIST 800-53, TIC 3.0, and CISA Binding Operational Directives
- Formal change-management experience and TLS certificate lifecycle management
- Excellent communication, documentation, and collaboration skills
- Zscaler Certified Cloud Professional or Zscaler Certified Cloud Administrator certification
- Okta Certified Professional or higher certification
- Experience with Cisco ISE, RSA SecurID, SolarWinds scripting, Azure networking NSGs, Riverbed, Grafana, or Cribl
- Ability to obtain a Public Trust and pass a public trust background investigation
- Must have resided in the United States for 3 of the last 5 years
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.
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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.
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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.
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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
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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