Senior Network Engineer

General information

Requisition # R59759 Locations USA-VA-Reston, USA-VA-Chantilly Posting Date 04/16/2025 Security Clearance Required TS/SCI w/ Poly Remote Type Onsite Time Type Full time

Description & Requirements

Unlock the secrets of intelligence with ManTech! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with ManTech!

ManTech seeks a motivated, career and customer-oriented Senior Network Engineer to join our team in Reston, VA.  This is an onsite position.

The Senior Network Engineer will work with Network and Systems Engineers to design, build, monitor, maintain, and upgrade all program networks to ensure data is consistently available and flowing properly.

Responsibilities include but are not limited to:

• Designing, building, monitoring, maintaining, and upgrading all program networks and communications links

• Analyzing networks and communications links to identify and resolve architecture, provider, environment, or other issues

• Implementing and maintaining effective tools to evaluate/analyze data movement and ensure data integrity throughout the network

• Working with engineering teams to troubleshoot integration issues and to maximize network and system performance

• Establishing appropriate network monitoring and early warning mechanisms to proactively identify potential issues before they impact operations

• Monitoring and evaluating network performance and recommending improvements

• Performing performance testing and tuning for all network and Cloud infrastructures

Minimum Qualifications:

• 10+ years of relevant experience serving as a Network Engineer or performing similar technical duties

• Strong experience with network hardware configuration and maintenance in large-scale environments

• Strong experience with relevant networking and firewall technologies such as Cisco and Palo Alto

• Strong network administration experience in areas such as DNS, routing, firewall configuration, scripting and automation

• Strong Cloud experience, including remote management, with technologies such as AWS

• Strong experience performing Tier 2-4 network troubleshooting and resolving issues

Preferred Qualifications:

• Prior experience managing and maintaining complex networks used to transport data worldwide

• Ability and willingness to travel overseas if required

Clearance Requirements:

• Must have an active/current TS/SCI w/ polygraph

Physical Requirements:

• Must be able to be in a stationary position more than 5