Systems Engineer

L2T•Herndon, VA
•$170,000 - $200,000

About The Position

L2T, LLC is seeking a hands-on senior Systems Engineer to design, implement, maintain, and optimize enterprise Linux systems and network infrastructure. The role architects and supports scalable, secure, and highly available infrastructure solutions, leads automation initiatives, and serves as a senior technical resource for complex production issues. The engineer works across Linux systems, networks, applications, identity services, virtualization, and distributed systems to ensure reliable, secure, and compliant operations. The position collaborates with customers, stakeholders, and engineering teams to develop solutions for current and future business needs. It also contributes to architecture reviews, capacity and disaster recovery planning, infrastructure modernization, and continuous improvement. The company offers opportunities for professional growth through leadership training, industry conferences, and mentorship. Candidates must possess an active Top Secret clearance. Cloud experience is a plus but not required.

Requirements

  • 10+ years of experience in Systems, Network, or Infrastructure Engineering.
  • Expert-level knowledge of Linux administration in enterprise or mission-critical environments.
  • Strong understanding of Linux internals, including system calls, processes, memory management, filesystems, and performance tuning.
  • Experience designing, implementing, and supporting complex enterprise infrastructure environments.
  • Hands-on experience with SaltStack (Salt) and infrastructure automation.
  • Experience administering identity and access management solutions, including FreeIPA/IPA.
  • Networking expertise in TCP/IP, DNS, DHCP, VLANs, VPNs, routing and switching technologies, OSPF, BGP, policy-based routing, and network security.
  • Experience with Cisco and Juniper network platforms.
  • Experience with virtualization technologies, hypervisors, and virtual desktop infrastructure (VDI).
  • Strong scripting and automation skills using Bash, Python, or similar languages.
  • Experience developing and maintaining secure, hardened system and network configurations.
  • Demonstrated ability to troubleshoot complex issues across operating systems, network infrastructure, applications, and distributed systems.
  • Excellent written and verbal communication skills.
  • Must possess an active Top Secret clearance.
  • A relevant college degree and/or practical experience commensurate with the position.

Nice To Haves

  • Cloud experience is a plus but not required.

Responsibilities

  • Design, implement, maintain, and optimize enterprise Linux systems and network infrastructure.
  • Architect and support scalable, secure, and highly available infrastructure solutions.
  • Lead automation initiatives using SaltStack and other infrastructure automation tools.
  • Serve as a senior technical resource and escalation point for complex production issues.
  • Perform advanced troubleshooting and root cause analysis across systems, networks, applications, and services.
  • Engineer and maintain Cisco and Juniper network environments to meet performance, security, and reliability requirements.
  • Administer and support identity management services, including FreeIPA/IPA.
  • Develop and maintain infrastructure standards, documentation, and operational procedures.
  • Evaluate emerging technologies and recommend infrastructure improvements and modernization.
  • Ensure systems and networks meet or exceed security, compliance, and operational standards.
  • Mentor junior engineers and foster technical growth across the team.
  • Collaborate with customers, stakeholders, and engineering teams to develop solutions that meet current and future business requirements.
  • Participate in architecture reviews, capacity planning, disaster recovery planning, and continuous improvement initiatives.

Benefits

  • 401(k) match of 6% with immediate vesting.
  • Highly subsidized health, dental, and vision insurance.
  • Legal Resources Plan.
  • Vacation and personal/sick leave (not combined as Paid Time Off).
  • 10 Federal Holidays.
  • Company-paid life insurance and short- and long-term disability coverage.
  • Free sodas and snacks.
  • Company-sponsored weekly breakfast or lunch.
  • Holiday parties and a family picnic.
  • Participation in several charitable events.
  • Leadership training, industry conferences, and mentorship from experienced team members.
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