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Senior Network Engineer

LMI Consulting, LLC
Tysons, VA Full Time
POSTED ON 11/25/2025
AVAILABLE BEFORE 1/25/2026
Senior Network Engineer
Job Locations US-VA-Tysons
Job ID 2025-13060 # of Openings 1 Category Information Technology Benefit Type Salaried High Fringe/Full-Time
Overview

LMI is seeking a skilled Senior Network Engineer to support our Enterprise Technology Services Infrastructure Solutions group. This position is a subject matter expert, capable of designing, engineering, testing, implementing, and managing information technology (IT) networking systems and services. The ideal candidate must have strong container security knowledge and experience supporting application developers with CI/CD pipelines, infrastructure as code, and cloud-native deployment strategies well as real-world experience with implementing wired and wireless networking solutions to include routers, switches, firewalls and load balancers. Additionally, the successful candidate will have working knowledge of implementing and administering digital certificates.

The position will report to the Network Engineering Platform Lead.

LMI is a consultancy dedicated to powering a future-ready, high-performing government, drawing from expertise in digital and analytic solutions, logistics, and management advisory services. We deliver integrated capabilities that incorporate emerging technologies and are tailored to customers' unique mission needs, backed by objective research and data analysis. Founded in 1961 to help the Department of Defense resolve complex logistics management challenges, LMI continues to enable growth and transformation, enhance operational readiness and resiliency, and ensure mission success for federal civilian and defense agencies.

We offer a generous compensation package with excellent benefits that start the first day of employment. Business casual dress, flex time, exercise facility, and tuition reimbursement are a few of our many work-life benefits available to our employees.

Responsibilities

    Responsible for engineering and implementing LMI's networking capabilities to include being the engineering point-of-contact for resolving reported performance or delivery issues. Must be able to manage multiple and competing priorities with little supervision.

  • Responsible for producing network designs and engineering artifacts.

  • Responsible for ensuring that all networking solutions comply with industry and Government-mandated security protocols, controls, and best-practices; working closely with our InfoSec Team for documenting controls and providing metrics to comply with audits and performance levels.

  • Responsible for ensuring project deliverables are completed accurately and on time.

  • Responsible for escalating issues, problems, risks, and constraints to the appropriate levels for clarification and resolution.

  • Responsible for keeping abreast of new and emerging technologies.

  • Responsible for appropriate interactions with LMI's internal or external clients as projects dictate.

  • Responsible for upkeep of IT equipment in support of LMI's secure environment to include applying required STIGs on all network equipment.

  • Required upkeep and maintenance of LMI's two Datacenters.

  • Required when needed to support all LMI's remote office locations and technologies

  • Resonsible for maintaining of containerized platform that aids hosting of developer hosted containers.

Qualifications

Required Skills:

  • 4 years of experience designing, executing and supporting networking solutions.
  • Working knowledge of digital certificates and their administration.
    • Experience with both internal Microsoft Certificate Authorities and external public certificates.
  • Advanced experience with Palo and Cisco firewalls.
    • Understanding routing protocols BGP, OSPF, EIGRP.
    • Understand NAT and ACL's.
  • Advanced experience with Cisco Switches and Routers.
    • Knowledge of ISO-XE, NX-OS code.
  • Advanced understanding authentication protocols.
    • Radius and TACACS.
    • Experience with Cisco Identity Services Engine for authentication and authorization capabilities via MFA, wireless, and VPN.
  • Experience with Wireless LAN Infrastructure.
  • Experience with F5 Load Balancer.
    • Experience writing iRules and understanding of iRules.
    • Understanding of iApps, VIPs, nodes, pools and health check rules.
  • Understanding of Windows or Linux operating systems.
  • Understanding of directory services (AD and LDAP).
  • Must be able to use Microsoft Office, Microsoft Visio, and other products to produce content and communicate with LMI leadership and clients.
  • Positive attitude and a strong commitment to delivering quality work.
  • Effective communication skills (written and verbal) to properly articulate complicated networking concepts to LMI leadership and customers.
  • Ability to attain a government clearance up to and including Top Secret, for which you must be a US Citizen.

Desired Skills:

  • Bachelor's degree in Computer Science, Computer Engineering, or Information Technology
  • Experience with Single Sign On, SAML - Attribute configuration for SAML assertion. Understanding of Kerberos and NTLM authentication
  • Certifications in Networking, AWS, Azure
  • Software Defined Networks in AWS engineering "Infrastructure as Code" constructs, with the mindset to "Automate Everything" in the AWS Cloud.
  • Virtualization technologies and migrations - VMWare, Hyper-V, KVM, etc.
  • Network monitoring using tools similar SolarWinds or Pingdom

LMI is an Equal Opportunity Employer. LMI is committed to the fair treatment of all and to our policy of providing applicants and employees with equal employment opportunities. LMI recruits, hires, trains, and promotes people without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, pregnancy, disability, age, protected veteran status, citizenship status, genetic information, or any other characteristic protected by applicable federal, state, or local law. If you are a person with a disability needing assistance with the application process, please contact accommodations@lmi.org Colorado Residents: In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information. Need help finding the right job?
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LMI is committed to the fair treatment of all and to our policy of providing applicants and employees with equal employment opportunities. LMI recruits, hires, trains, and promotes people without regard to race, color, religion, sex, sexual orientation, gender identity, pregnancy, age, national origin, disability, veteran status, or any other factors protected by applicable law. We welcome applications for employment from qualified disabled veterans, veterans of the Vietnam era, and other covered veterans.

 

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