Network Engineer Senior/Principal

About this role

Type of Requisition: Regular

Clearance Level Must Currently Possess: None

Clearance Level Must Be Able to Obtain: None

Public Trust/Other Required: BI Full 6C (T4)

Job Family: IT Infrastructure and Operations

Job Qualifications: Skills: Enterprise Network, Network Firewalls, Palo Alto Certifications: None Experience: 5 + years of related experience US Citizenship Required: Yes

Job Description: Own the opportunity as a Network Engineer Senior and help ensure the mission is never interrupted. At GDIT, we deliver clarity with our cloud solutions and provide meaningful work. Your work will be an important part of transforming our clients for the modern age and help them face any obstacle.

At GDIT, people are our differentiator. As a Network Engineer Senior/Principal , you will help ensure today is safe and tomorrow is smarter. Our work depends on a Network Engineer Senior/Principal joining our dynamic team to work in a fast-paced environment focused on engineering, migration, and operations of enterprise network security services. We're looking for a self-starter who works both as part of the team and on individual assignments, in an environment of customer mission delivery, integrity, and clear communications.

We're looking to fill this role with someone who currently has deep experience with next-generation firewalls, SASE/SSE platforms, network visibility and micro segmentation technologies, and the certifications and skills to execute in large multi-tenant enterprise environments. You should be flexible, enjoy tackling complex transition challenges, and want to join a large team that is building, migrating, and sustaining enterprise managed security services. If this sounds like you and you love to learn and grow with a team while delivering program milestones, then we'd love to hear from you!

HOW A NETWORK ENGINEER SENIOR/PRINCIPAL WILL MAKE AN IMPACT: • Designs, deploys, configures, and maintains cloud and on-premises network security solutions including Palo Alto NGFW, Panorama / Strata Cloud Manager, Prisma Access, GlobalProtect, Juniper SRX, Gigamon visibility components, ExtraHop sensors, Illumio Virtual Enforcement Nodes, and related policy and automation tooling.

• Maintains the integrity and security of the network device estate (Palo Alto firewalls and management planes, Juniper SRX, Gigamon TA/HC platforms, ExtraHop appliances, F5, and supporting infrastructure).

• Executes day-to-day implementation tasks for service takeovers and phased migrations: inventory and re-baselining of firewall and tunnel policies, GlobalProtect / Prisma Access policy changes, Gigamon/ExtraHop installation and feed validation, Illumio visibility deployment, and AlgoSec-driven policy cleanup.

• Creates, maintains, and updates documentation (diagrams, user guides, SOPs, and runbooks).

• Supports and develops automation for configuration, validation, and reporting tasks.

• Maintains and enhances knowledge of core network security technologies (Palo Alto, Juniper, Gigamon/ExtraHop, Illumio, F5, AlgoSec).

• Monitors and improves existing and new deployments; participates in agency phased rollouts under the direction of Principal / Lead engineers.

• Works across teams and external customer groups to implement solutions and support infrastructure build-outs.

• Handles escalations; makes assessments, recommendations, or provides solutions to resolve issues.

• May coach and provide guidance to less-experienced professionals.

• Coordinates the acquisition of hardware and software as well as subcontractor services as needed.

WHAT YOU'LL NEED TO SUCCEED:

● Required Education: BA/BS or equivalent experience

● Required Experience: 5+ years (Senior) or 8+ years (Principal) of experience with Next Generation Firewalls and enterprise network security technologies

● Required Technical Skills: • Networking (Routing, Firewall, and Switching)

• Palo Alto Networks (NGFW, Panorama / Strata Cloud Manager, Prisma Access, GlobalProtect)

• Juniper SRX

• F5

• Exposure to Illumio, Gigamon, ExtraHop, or AlgoSec

● Required Skills and Abilities: • Excellent communication skills with demonstrated experience delivering presentations and technical briefings to diverse audiences at various levels of an organization

• Strong documentation discipline

● Security Clearance Level: Must be able to pass a background check to obtain a position of Public Trust

● US Citizenship Required

● Location: Remote

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 ● Flexibility: Full-flex work week to own your priorities at work and at home ● Community: Award-winning culture of innovation and a military-friendly workplace

OWN YOUR OPPORTUNITY Explore an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.

The likely salary range for this position is $96,569 - $130,651. 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: Less than 10%

T elecommuting Options: Remote

Work Location: Any Location / Remote

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, G

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