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Sr Network Infrastructure Engineer Jobs in Washington

Senior Network Engineer

Fort Belvoir, VA

$117K - $161K/yr

Leidos is seeking a Senior Network Engineer to support the design, implementation, modernization ... Design, implement, configure, and maintain enterprise LAN and WAN infrastructure. * Engineer and ...

Senior Network Engineer

Fort Belvoir, VA ยท On-site

$92.30 - $166.85/hr

Leidos is seeking a Senior Network Engineer to support the design, implementation, modernization ... Design, implement, configure, and maintain enterprise LAN and WAN infrastructure. * Engineer and ...

Senior Network Engineer

Fort Belvoir, VA ยท On-site

$117K - $161K/yr

Leidos is seeking a Senior Network Engineer to support the design, implementation, modernization ... Design, implement, configure, and maintain enterprise LAN and WAN infrastructure. * Engineer and ...

Senior Network Engineer

Washington, DC ยท On-site

$117K - $161K/yr

We are seeking a highly skilled Senior Network Engineer to support an upcoming federal program focused on enterprise infrastructure modernization, Zero Trust implementation, cybersecurity, and ...

Senior Network Engineer

Washington, DC ยท On-site

$117K - $161K/yr

We are seeking a highly skilled Senior Network Engineer to support an upcoming federal program focused on enterprise infrastructure modernization, Zero Trust implementation, cybersecurity, and ...

Senior Network Engineer

Lanham, MD ยท On-site

$103K - $142K/yr

ETalentNetwork is a company looking for a Senior Network Engineer. The role involves managing and optimizing network infrastructure to ensure robust performance and security. Company : E Talent ...

Senior Network Engineer (CONUS) Location: Washington, DC, San Antonio, TX, or Honolulu, HI Security ... Participate in network modernization initiatives, technology refresh projects, infrastructure ...

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Sr Network Infrastructure Engineer information

What does a Sr Network Infrastructure Engineer do?

A Sr Network Infrastructure Engineer is responsible for designing, implementing, and maintaining complex computer networks within an organization. This role involves ensuring network security, optimizing performance, and troubleshooting issues to support business operations. They often work with routers, switches, firewalls, and other network hardware, as well as collaborate with IT teams to support projects and upgrades. Senior engineers also play a key role in planning network growth and integrating new technologies.

What are the key skills and qualifications needed to thrive as a Sr Network Infrastructure Engineer?

To thrive as a Sr Network Infrastructure Engineer, you need deep expertise in network architecture, routing and switching, and a strong understanding of security protocols, typically supported by a bachelor's degree in a related field and relevant certifications like CCNP or CCIE. Proficiency in configuring and maintaining network hardware (e.g., Cisco, Juniper), network monitoring tools, and automation platforms is essential. Exceptional problem-solving, communication, and project management skills help you lead initiatives and collaborate across departments. These skills and qualities are vital for ensuring reliable, secure, and scalable network operations in complex enterprise environments.

What are some typical challenges a Sr Network Infrastructure Engineer faces when managing large-scale network deployments?

Sr Network Infrastructure Engineers often encounter challenges such as ensuring network scalability, minimizing downtime during upgrades, and integrating new technologies with legacy systems. They must also address security vulnerabilities and maintain high performance across complex, multi-site environments. Effective communication and collaboration with cross-functional teams, such as security and cloud operations, are essential to successfully navigate these challenges and maintain robust network infrastructure.

What is the difference between Sr Network Infrastructure Engineer vs Network Engineer?

AspectSr Network Infrastructure EngineerNetwork Engineer
CertificationsCCNA, CCNP, Cisco certificationsCCNA, CompTIA Network+
Work EnvironmentData centers, enterprise networks, large-scale infrastructureSmall to medium business networks, office environments
ResponsibilitiesDesign, implement, and maintain complex network infrastructureConfigure and troubleshoot network devices and connections

The main difference is that Sr Network Infrastructure Engineers focus on large-scale, complex network systems and often hold advanced certifications, while Network Engineers typically handle day-to-day network setup and troubleshooting in smaller environments. Both roles require strong networking skills but differ in scope and complexity.

What are popular job titles related to Sr Network Infrastructure Engineer jobs in Washington?

For Sr Network Infrastructure Engineer jobs in Washington, the most frequently searched job titles are:

What job categories do people searching Sr Network Infrastructure Engineer jobs in Washington look for?

The top searched job categories for Sr Network Infrastructure Engineer jobs in Washington are:

Infographic showing various Sr Network Infrastructure Engineer job openings in Washington as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 11% Part Time, and 6% Contract. Highlights an 90% Physical, 2% Hybrid, and 8% Remote job distribution.

Senior Network Infrastructure Engineer

3M HEALTHCARE

Laurel, MD โ€ข On-site

$90 - $120/hr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Posted 7 days ago


Job description

At Two Six Technologies, we build, deploy, and implement innovative products that solve the worldโ€™s most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the boundaries of whatโ€™s possible to empower our team and support our customers in building a safer global future.

Overview of Opportunity

Two Six Technologies is seeking a Senior Network Infrastructure Engineer who will be responsible for designing, maintaining, and implementing technical solutions for complex problems. The candidate will provide technical oversight of a project solution, including requirement interpretation and allocation of requirements to technical components. He or she will define processes to support the implementation of requirements and ensure that technical solutions leverage industry best practices, designing for security and excellence while minimizing the total cost of ownership. You will need to be able to define internal and external customer IT infrastructure architecture needs and then design solutions to meet those needs to include: capacity planning, systems configuration and tuning, monitoring backups, and installations of hardware and software.

The work will be hybrid, based out of our Laurel, Maryland office.

What you will do:
  • Manage and direct internal IT systems and personnel
  • Lead efforts to ensure that complex systems are ready for use and quick reaction requests are met as needed
  • Participate in the development and implementation of the network infrastructure in field offices, including physical and logical design of network and telecom infrastructure, analyzing existing network platforms and systems, and recommending solutions.
  • Provide technical input in the design, installation, maintenance, and support of network infrastructure
  • Support tight-looped development and integration production cycles
  • Support a large virtualized environment in a Linux environment
  • Support an Elasticsearch cluster
  • Process and testing automation
  • Continual learning, particularly with respect to cybersecurity principles
  • Collaboration and communication across teams and projects
What you will need to be successful:
  • Experience with Linux system administration
  • 5+ years of experience configuring, designing, maintaining, and troubleshooting LAN/WAN devices
  • Thorough understanding of network routing concepts (BGP, IP)
  • 5+ years of experience configuring/maintaining Cisco switches (focus on Nexus)
  • 5+ years of experience in Networking, Security, Design implementation, and Operational support
  • Experience designing and implementing Routers, Switches, Firewalls, and Security Software
  • Experience with Layer 2 and Layer 3 switching, routing and VLANs.
  • Experience configuring/maintaining other (non-Cisco) hardware firewall devices such as VyOS
  • Experience with network monitoring technologies
  • Experience with virtualization environments such as ProxMox and/or VMware
  • Ability to take ambiguous requirements or problems and convert them into technical solutions
  • Ability to partner with systems administrators, storage administrators, and application developers to solve complex problems
  • Complex problem management research and issue resolution
  • Ability to mentor junior network engineers
  • Reviewing and identifying security vulnerabilities and applying remediation
  • Command of scripting languages such as Python and Bash
  • Experience with infrastructure automation tools such as Ansible and Docker
  • Eligibility to obtain and maintain a DoD clearance
Nice to Haves:
  • Experience with classified lab networks and requirements (SCIF or SAPF)
  • Experience with LDAP/Kerberos authentication protocols
  • Understanding of modern software languages and command line interface
  • Experience with Elasticsearch node setup, configuration and troubleshooting
  • Security best practices and implementing firewalls and perimeter security measures including VPN technologies
  • Continuous integration, test automation and/or SecDevOps on iterative development projects
Security Clearance
  • Eligibility to obtain and maintain a DoD clearance

Two Six Technologies is committed to providing competitive and comprehensive compensation packages that reflect the value we place on our employees and their contributions. We believe in rewarding skills, experience, and performance. Our offerings include but are not limited to, medical, dental, and vision insurance, life and disability insurance, retirement benefits, paid leave, tuition assistance and professional development.

Ready to make the first move toward growing your career? If so, check out the Two Six Technologies Candidate Journey! This will give you stepโ€‘byโ€‘step directions on applying, what to expect during the application process, information about our rich benefits and perks along with our most frequently asked questions. Still have questions? You can reach us at Contact Two Six Technologies. We are happy to connect and cover the information needed to assist you in reaching your next career milestone.

Two Six Technologies is an Equal Opportunity Employer and does not discriminate in employment opportunities or practices based on race (including traits historically associated with race, such as hair texture, hair type and protective hair styles (e.g., braids, twists, locs and twists)), color, religion, national origin, sex (including pregnancy, childbirth or related medical conditions and lactation), sexual orientation, gender identity or expression, age (40 and over), marital status, disability, genetic information, and protected veteran status or any other characteristic protected by applicable federal, state, or local law.

If you are an individual with a disability and would like to request reasonable workplace accommodation for any part of our employment process, please send an email to accommodations@twosixtech.com . Information provided will be kept confidential and used only to the extent required to provide needed reasonable accommodations.

Additionally, please be advised that this business uses E-Verify in its hiring practices.

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