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Senior Core Network Engineer

IMR Soft LLCUnited States🇺🇸United StatesPosted Oct 15, 2026

Quick Overview

Seniority
Mid Senior
Work mode
Remote
Location
United States
Posted
23 hours ago
ShellTCP/IPAnsibleDNSMicrosoft OfficeProxmoxVMware

Job Description

Senior Core Network Engineer
Remote Job 
12 months
The Senior Core Network Systems Engineer should have demonstrable experience in assessing, designing and maintaining network and server infrastructure, including planning, evaluating, coordinating and performing installation and reconfiguration of hardware and software elements of data communications. Maintains technical expertise in network and computer hardware and software interconnection and interfacing, such as routers, firewalls and switches.
The role requires providing regular monitoring and network analysis regarding short- and long-term planning, including disaster recovery. Develops, tests and implements solutions that support current and future needs. Creates and maintains appropriate network policies, including operational, troubleshooting, and escalation guides in addition to architecture documentation and dataflow.
Essential Duties and Responsibilities
The Essential Duties and Responsibilities listed below are a range of duties performed by the employee and not intended to reflect all duties performed.
Network & Infrastructure Support
  • Troubleshoots complex network issues on the corporate network.
  • Maintains, supports and administers servers, local/wide area network (LAN/WAN), Wireless and VPN technologies.
  • Identifies and resolves connectivity problems between systems and works with vendors in troubleshooting and supporting systems and services.
  • Performs the installation, configuration, management, upgrade and modification of network switches, routers, firewalls, Network Load Balancers, Wireless, VPN and other related infrastructure technologies.
  • Supports the installation, configuration, management, upgrade and modification of servers including Hypervisor Hosts, Windows and Linux operating systems.
  • Works with Vendors to implement remote L2L IPsec tunnels and facilitate access to necessary vendor-based applications and services.
  • Configures and maintains systems, installs, upgrades and maintains hardware and software.
Customer & Vendor Support / Collaboration
  • Provides hardware and software support to IT personnel, customers and offices.
  • Communicates with internal customers, vendors and IT personnel to complete projects.
  • Works with vendors to obtain quotes and purchase hardware, software, support and other IT-related equipment and services within allotted budget.
  • Travels to remote sites as needed to complete projects.
Documentation & Process Management
  • Creates and maintains documentation to record network and hardware topologies.
  • Develops and maintains documentation.
Security, Compliance & Work Requirements
  • Understands and agrees to role-specific information security access and responsibilities.
  • Ensures safety and confidentiality of data and systems by adhering to the organization's information security policies.
  • Reads, understands and agrees to security policies and completes all annual security and compliance training.
  • Must be available to work regular business hours Pacific Standard Time.
  • Must also be available to work on-call, evenings and weekends as needed.
Other Duties
  • Performs other duties as required to support the business and evolving organization.
Required Qualifications
  • Minimum of 8 years of relevant experience managing local and wide area networks, communications systems, and related software and hardware in a multi-platform environment, including configuring, installing, and troubleshooting switches, routers, and firewalls.
  • Proficient with Linux, Windows Server, YAML, Ansible, shell scripting, etc.
  • Prior experience with NMS, RADIUS and TACACS.
  • Proficient working with hypervisors—VMware ESXi, XenServer and Proxmox.
  • Proven ability to troubleshoot complex networking issues.
  • Experience with DNS, DHCP and IP addressing management and subnetting.
  • Working knowledge of Virtual LANs and trunking protocol, ACLs, IPsec tunnels and their implementation.
  • Experienced with configuring and troubleshooting routing/switching technologies including TCP/IP, HSRP, VRRP, BGP, OSPF, VXLAN, 802.1q, IPsec (ESP, AH, IKE), DNS, DHCP, TACACS, and RADIUS in an enterprise-class environment.
  • Operational experience with configuring/troubleshooting switches, routers, firewalls, VPN, and wireless technologies including Cisco, Juniper, F5 BIG-IP (LTM, DNS/GTM, Access/AMP), Fortinet/FortiGate, pfSense/Netgate.
  • Experience with various equipment assets and circuit inventory systems required.
  • Proficient in reading and interpreting technical documents such as vendor deployment guidelines, white papers and configuration manuals.
  • Desired Education: B.S. / B.A. in Computer Science, Information Systems, Information Technology, Computer Information Systems. Experience and professional certifications such as Security+, CCNA (routing/switching), Network+, DoD 8570.1, and MCSE certifications may qualify in lieu of a degree.
Knowledge, Skills and Abilities
  • Ability to provide excellent customer service.
  • Excellent time management skills and ability to prioritize.
  • Ability to communicate effectively with all levels within an organization.
  • Ability to work closely with the Security team.
  • Ability to communicate with customers, vendors, etc. in a courteous and professional manner.
  • Strong oral and written communication skills are required.
  • Ability to operate various office equipment such as personal computers, various software programs including Microsoft Office applications (Excel, Outlook, Visio), and telephone systems.
  • Strong attention to detail and problem-solving skills are required.
  • Ability to work as part of a team while performing as an individual.

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