Senior Network Engineer Apogee Engineering LLCSenior Network EngineerScott AFB, ILApogee has an exciting new opportunity for a Senior Network Engineer to provide support for the Executive Airlift Communications Network (EACN) support task order, which provides Command, Control, Communications (C3) services for multiple critical U.S. Government missions via multiple Air to Global Information Grid (GIG) Gateways (A2G2's) supported by a Systems Integration Lab (SIL). Provide Network Tier 3 support to Senior Leader Command, Control, Communications Systems-Airborne (SLC3S-A) Operations, Mobility Air Forces (MAF) Operations, Air Force Global Strike Command's (AFGSC) E-4B aircraft, also known as the National Airborne Operations Center (NAOC), and U.S. Navy E-6B Mercury aircraft.
NewTransport Network Engineer II LeidosTransport Network Engineer IIShiloh, IllinoisOur customer, the Defense Information Systems Agency (DISA-GLOBAL) at Scott AFB, il provides, operates, and assures command and control of the Defense Information System Network (DISN) services to its customers, the department of Defense (DoD) and national security organizations. Perform fault isolation, analysis, and troubleshooting across various Transport platforms including SONET Optical/Fiber Transport (ODXC/MSPP), Dense Wavelength Division Multiplexing (DWDM), Time Division Multiplexing (TDM), and cryptographic systems.
Senior Network Engineer (46337) Levi, Ray & Shoup IncSenior Network Engineer (46337)St. Louis, MO$65–$75 / hourLRS Consulting Services is seeking a Senior Network Engineer who enjoys solving complex infrastructure challenges, partnering with business leaders, and building reliable network solutions that support organizational growth. This contract-to-hire opportunity offers the chance to support a large, distributed enterprise environment while driving network modernization, site expansion, and connectivity initiatives across multiple locations.
NewJoint Fires Network Engineer Marathon TSJoint Fires Network EngineerBelleville, ILAssess, identify and recommend resolutions to various network incidents and/or deficiencies leveraging knowledge in one or more of following: routers, switches, crypto devices, routing, CISCO, Juniper, MSPP, optical transport network, MPLS, time division multiplexing, SDH/SONET. Work directly with internal and external customers, external government agencies, and other engineering tiers to ensure maximum network availability to minimize or eliminate mission and operational impact.
Network Provisioning Engineer (Layer 2) Lumos Networks Corp.Network Provisioning Engineer (Layer 2)St. Louis, MO$74,340–$87,000 / yearCollege degree in Engineering or a related field and 3-5 years professional level experience; or 6+ years professional level related Engineering/Technical experience; or an equivalent combination of education and professional level related Engineering/Technical experience. About Segra: Segra owns and operates a wide and dense fiber-optic infrastructure footprint that provides state-of-the-art connectivity, cybersecurity, voice, cloud and colocation solutions, all backed by industry-leading service and reliability.
Cisco Network Security Engineer/ Senior Consultant Deloitte Touche Tohmatsu LtdCisco Network Security Engineer/ Senior ConsultantSt. Louis, MO$105,400–$207,800 / year3+ years of experience with Cisco Identity Services Engine (ISE) 802.1X Network Access Control (NAC), guest lifecycle management, profiling policies, TrustSec segmentation, and Cisco Firepower capabilities including intrusion prevention system (IPS), malware protection, Uniform Resource Locator (URL) filtering, Domain Name System (DNS)-based security, Secure Sockets Layer/Transport Layer Security (SSL/TLS) decryption, and cloud firewall deployments in Amazon Web Services (AWS), Microsoft Azure, or Google Cloud Platform (GCP). 5+ years of experience designing, deploying, and managing Cisco Firepower Threat Defense (FTD) and Firepower Management Center (FMC) in enterprise environments, including physical appliances, virtual instances, and cloud-delivered Firewall Management Center (cdFMC).
Senior Engineer, Network Hubbell IncSenior Engineer, NetworkFenton, MOWe are seeking a highly skilled and experienced Senior Network Engineer to support and evolve a large enterprise network environment spanning corporate campuses, manufacturing and warehouse facilities, and a primary distribution center, while also contributing to the stability and integration of the global enterprise network. This role is responsible for the design, implementation, operation, and ongoing optimization of campus and wide‑area network infrastructure, including multi‑building environments with high availability, operational technology (OT) considerations, and secure segmentation.
Network Engineer Caleres IncNetwork EngineerClayton, MOLead projects: Begin to develop strong leadership skills on various projects and initiatives of any complexity, size, and scope, which includes assisting with project-related decisions and tasks as well as delegation and documentation of project work. Founded in 1878, Caleres, originally known as Brown Shoe Company, is a global footwear company comprised of some of the world's most loved brands including Famous Footwear, Sam Edelman, Naturalizer, Dr. Scholls, and Allen Edmonds and many more.
Enterprise Voice Engineer III Leidos Holdings Inc.Enterprise Voice Engineer IIIShiloh, IL$73,450–$132,775 / yearExperience with one or multiple Cisco, Avaya or Oracle voice platforms including Cisco Unified Communications Manager (CUCM), Cisco Unity, Cisco Unified Border Element (CUBE), Oracle Session Border Controller (SBC) and Avaya Aura Application Server. Our customer, the Defense Information Systems Agency (DISA), provides, operates, and assures command and control of the Defense Information System Network (DISN) services to its customers, the department of Defense (DoD) and national security organizations.
Enterprise Voice Engineer III LeidosEnterprise Voice Engineer IIIShiloh, Illinois$73,450–$132,775 / yearExperience with one or multiple Cisco, Avaya or Oracle voice platforms including Cisco Unified Communications Manager (CUCM), Cisco Unity, Cisco Unified Border Element (CUBE), Oracle Session Border Controller (SBC) and Avaya Aura Application Server. Our customer, the Defense Information Systems Agency (DISA), provides, operates, and assures command and control of the Defense Information System Network (DISN) services to its customers, the department of Defense (DoD) and national security organizations.
Principal Network Engineer Z/Os US BankPrincipal Network Engineer Z/OsEarth City, MO$119,765–$140,900 / yearIn addition, certain positions may also be subject to the requirements of FINRA, NMLS registration, Reg Z, Reg G, OFAC, the NFA, the FCPA, the Bank Secrecy Act, the SAFE Act, and/or federal guidelines applicable to an agreement, such as those related to ethics, safety, or operational procedures. Monitor, analyze, and resolve complex mainframe networking issues involving multiple protocols, connectivity layers, and distributed platforms.
Voice Tier 3 Engineer DecisionPoint | CortekVoice Tier 3 EngineerScott AFB, Illinois$79,759–$88,215 / yearFull timeHowever, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor's legal duty to furnish information. Authorization to Share Resume and Personal Information: By expressing your interest and submitting your resume for this position, you authorize DecisionPoint Corporation to share your resume, as well as personal information included on the resume, with its subsidiaries, affiliates and teaming partners for the purpose of considering you for this position and other available positions requiring comparable skills, education and experience.
NewNetwork Operations Intern LeidosNetwork Operations InternShiloh, IllinoisAugust 26, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Leidos, a leading defense, intelligence, and technology company, is seeking a motivated Network Operations Intern to join our Digital Modernization Group on the Global Solutions Management – Operations II (GSM-O II) contract at Scott AFB, IL.
NewNetwork Engineering & Operations Intern LeidosNetwork Engineering & Operations InternShiloh, IllinoisThis is a unique opportunity to gain hands-on experience supporting the Defense Information System Network (DISN), one of the world's largest and most complex networks, in direct support of the Defense Information Systems Agency (DISA). August 26, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Systems & Network Security Engineer Lumos Networks Corp.Systems & Network Security EngineerSaint Louis, MO$116,025–$140,000 / yearPreferred Experience: Experience with asset discovery and logical asset managementSolid understanding of authentication and identity technologies (IAM, SSO, RADIUS, TACACS+, AD/LDAP/Kerberos)Experience with compliance frameworks, particularly NIST CSF, NIST 800-53, and/or ISO 27001Experience with administration of Splunk, Splunk ES or other SIEM platformsFamiliarity with Infrastructure as Code and automation tools (Terraform, Ansible, git)Familiarity with AWS, Microsoft Azure, and Office 365 security controls (e.g., IAM, PIM, Identity Governance, Azure Policies, Entra, Intune, DLP, IaaS)Familiarity with EDR/MDR/XDR platformsExperience with security incident responseStrong understanding of operating systems and command line administration at all levels. Strong understanding of TCP/IP networking protocols at all layers of the OSI stackUnderstanding of the HTTP protocol, Web Application Firewall (WAF) technologies, BurpSuite testing, and APIsUnderstanding of PKI, SSL/TLS, and cryptographic functionsExperience working in micro-segmented environmentsComfortable with regular expressions.
Zero Trust Network Security Engineer Booz Allen Hamilton IncZero Trust Network Security EngineerScott AFB, IL$86,800–$198,000 / yearGrow your skills by merging network security engineering with Zero Trust architecture and policy enforcement design to create conditional access solutions that evaluate users and devices in real time before they reach mission-critical resources. As a Zero Trust Network Security Engineer on our team, you'll have the chance to design and support remote access and conditional access enforcement solutions in support of the Department of Defense's (DoD) Zero Trust mission.
Implementations Network Engineer II Novul SolutionsImplementations Network Engineer IIBelleville, IllinoisExperience with data/voice network design over transmission systems, including: Routing protocols: BGP, ISIS (and OSPF preferred/commonly used). Monitor networks post-change to confirm traffic behavior and detect customer impact; incorporate lessons learned/customer reporting.
Implementation Network Engineer Zp Group LlcImplementation Network EngineerScott AFB, IL$80,000–$90,000 / yearKeywords: #NetworkEngineering #Telecommunications #DISA #DoD #DefenseIT #NetworkOperations #SystemsEngineering #RoutingProtocols #BGP #OSPF #TCPIP #CyberSecurity #SecurityPlus #IATLevel2 #ITIL #NetworkDesign #InfrastructureEngineering #ServiceManagement #ChangeManagement #FederalI. The Implementations Network Engineer will perform installation oversight, configuration, testing, monitoring, servicing of network equipment and activation of networks for projects onsite in Scott AFB, IL.
Network Administrator - Journeyman Zp Group LlcNetwork Administrator - JourneymanScott AFB, IL$55,000–$65,500 / yearsecurity plus, CompTIA, VOIP, configuration, routers, switches, firewalls, firewall, ticketing, remedy, LAN, WAN, wide area networks, network+, CCNA, CCNP, troubleshooting, call manager, unified communications, cisco unified call manager, VOIP. Zachary Piper Solutions is seeking a Network Administrator to support the Global Department of Defense (DoD) Information Network (DoDIN) at Scott AFB, Illinois.
Network Services Coordinator Lumos Networks Corp.Network Services CoordinatorSaint Louis, MO$55,230–$65,000 / yearWorking knowledge of VoIP, LAN/WAN network switching/routing equipment (Adtran, Cisco Meraki), and CPE troubleshootingIndependent problem-solving and technical troubleshooting across multiple concurrent, high-visibility projectsStrong interpersonal and customer engagement skills, including advanced technical discovery discussions. The Network Services Coordinator independently manages high‑visibility customer deployments, interprets advanced engineering documentation, and drives cross‑functional teams to meet aggressive delivery timelines.