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231 sr network engineer jobs at 117 companies in Boulder, CO

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Sr. Network Engineer
Redwood City or San Diego or Denver
$100k-$140k/yr HybridFull Time
SB Energy
SB Energy: Develops, builds, and operates utility-scale renewable energy infrastructure.
5+ YOEBachelor's degree or equivalent,5+ years network experience (preferably OT energy/data center),Azure networking, Palo Alto/Cisco experience, networking/security certifications, familiarity with NIST/ISA/IEC/NERC frameworks.
Microsoft Azure, Palo Alto Networks, Cisco, Dell Servers, Hyper-V, VMware, Kubernetes, Docker, SIEM, EPMS, BMS, NIST SP 800-82, ISA/IEC 62443, NERC CIP
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1w
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Sr Network Engineer OTV
Denver or Indianapolis or Flint
$125k-$135k/yr OnsiteFull Time
OTAVA
OTAVA: Provides secure and compliant multi-cloud and data protection solutions.
10+ YOE10+ years network engineering experience, strong Fortinet knowledge, network certifications preferred (CCIE, CCNA, etc.), bachelor's degree or equivalent, expertise in network design, automation, and incident escalation.
Fortinet
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Sr. Network Engineer
Thornton, Colorado, United States
$120k-$135k/yr OnsiteFull Time
MYR Group
MYR GroupNASDAQ: MYRG: Specialty contractor providing electrical construction and infrastructure services.
7+ YOE7+ years enterprise network engineering experience (CCNP-level), strong routing/switching, network security, Azure hybrid networking, VMware networking, troubleshooting and on-call participation.
Wireshark, SolarWinds, PRTG, Dynatrace, NetFlow, sFlow, Python, PowerShell, VMware, VMware NSX, ExpressRoute, F5, Azure, Microsoft operating systems
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2mo
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Sr Principal Network Engineer
Aurora, Colorado, United States
$129k-$194k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
8+ YOEBachelor's in STEM with 8+ years or Master’s with 6+ years; TS/SCI with full-scope polygraph; Security+ certified; 20% travel; experience with WAN/LAN, routers, switches, firewalls, load balancers; engineering and design of network systems.
Cisco routers, Cisco switches, firewalls, load balancers, Linux, Windows, COMSEC equipment
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Sr. Network Engineer
San Diego or Edison or Centennial or Irvine
$130k-$160k/yr OnsiteFull Time
Axos Financial
Axos FinancialNYSE: AX: Provides digital-first banking and diverse financial services to customers.
8+ YOE8+ years of network engineering with AWS/Azure, Cisco/Meraki, Palo Alto, network security, automation basics (Python/Ansible), and Terraform familiarity.
Terraform, AWS, Microsoft Azure, Cisco Meraki, Palo Alto, Python, Ansible, ThousandEyes, Splunk, Cisco ISE
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Sr. Network Engineer
Denver, Colorado, United States
$100k-$200k/yr OnsiteFull Time
Applied Network Solutions: Providing cybersecurity and network engineering services for government agencies.
16+ YOETS/SCI with polygraph, 16 years combined education/work experience, DoD 8140 IAT Level 2, Tier III network engineering experience, Cisco/Brocade/Juniper, routing protocols (OSPF, BGP, 802.1q), DNS, DISA STIGs, supervise network specialists.
Cisco, Brocade, Juniper, OSPF, BGP, 802.1q, DNS, MPLS, DISA Security Technical Implementation Guides (STIGs)
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Sr IT Network Engineer
Englewood, Colorado, United States
$48-$78/hr RemoteFull Time
CommonSpirit Health
CommonSpirit Health: Operates a national non-profit Catholic health system.
7+ YOE7+ years engineering/architecture experience with Cisco networking, active experience designing/implementing enterprise networks, proficiency with network protocols, security, and multi-vendor environments.
Cisco Nexus, Cisco Prime Infrastructure, Cisco DNA Center (DNAC), Cisco ISE, Cisco
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6d
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Network Engineer 4
Centennial, Colorado, United States
$121k-$202k/yr OnsiteFull Time
United Launch Alliance
United Launch Alliance: Aerospace providing space launch services for satellites.
6+ YOEDesign, implement, and optimize enterprise and launch network infrastructure; mentor engineers; expertise in routing, switching, security, cloud networking, and automation.
OSPF, BGP, Cisco ACI, Palo Alto, Cisco ASA, Firepower, Python, Ansible, PowerShell, Terraform, Azure, AWS, SolarWinds, NetFlow, Cisco ISE, SD-WAN
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1mo
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Director Network Engineer
Mercer Island or Denver or Austin
$185k-$225k/yr OnsiteFull Time
Fleet Data Centers
Fleet Data Centers: Designs, builds, and operates mega-scale hyperscale data center campuses.
10+ YOEBachelor's in network engineering or related field, 10+ years network engineering experience (8+ in data centers), expertise in BGP/OSPF/IS-IS/VXLAN/VRF, optical transport, and large-scale network operations; Ansible/ZTP/SDN experience and CCNP/CCIE or equivalent preferred.
BGP, OSPF, IS-IS, VXLAN, VRF, Ansible, ZTP, SDN, Cisco, Arista, Juniper, Ciena
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Senior Network Engineer
Austin or Atlanta or Denver or Seattle or Mexico City
HybridFull Time
Cloudflare
CloudflareNYSE: NET: Provides security and performance services for internet properties.
Experienced large-scale network engineer with hands-on BGP/anycast, MPLS/Segment Routing, vendor OS (Juniper, Cisco, Arista), Python/TypeScript/Go, network automation (SaltStack, Ansible), LLM/AI agent development, incident response and on-call experience.
Python, TypeScript, Go, LLM, Workers AI, AI Gateway, MCP, SaltStack, Ansible, Juniper, Cisco, Arista, BGP, MPLS, Segment Routing, CWDM, DWDM, Linux
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Sr Network Engineer - CCIE Contract 1
Denver or Fort Collins
$90k-$130k/yr OnsiteFull Time
Advanced Energy
Advanced EnergyNasdaq: AEIS: Provides precision power conversion and control technology solutions.
5+ YOE5+ years enterprise network engineering experience, strong LAN/WAN/routing/switching knowledge, network security and hybrid cloud networking, vendor and contract management, bachelor's degree required.
Cisco
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3w
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Sr. Network Systems Engineer
Denver or Littleton
$182k-$254k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
10+ YOEDesign and verify FPGA firmware for secure communications; Bachelor's in EE/CE; 10+ years FPGA firmware experience; proficiency in VHDL/Verilog/SystemVerilog and FPGA toolchains; ability to obtain U.S. government security clearance.
VHDL, Verilog, SystemVerilog, Xilinx Vivado, Intel Quartus, AXI, PCIe, SpaceWire, Ethernet, DO-254
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Network Engineer, Optical Deployment
Denver or Reston or Menlo Park or Seattle
$135k-$191k/yr OnsiteFull Time
Meta
MetaNASDAQ: META: Develops social networking platforms and virtual reality technologies.
6+ YOEBachelor's or equivalent,6+ years network engineering,3+ years optical engineering,experience with routing/switching/optical transport,data center design,leading deployment and vendor coordination.
Python, Go
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1mo
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Sr. Network Engineer- Network Observability
Denver, Colorado, United States
$105k-$162k/yr HybridFull Time
Visa
VisaNYSE: V: Global payment technology facilitating electronic funds transfers.
2+ YOE2+ years + Bachelor's OR 5+ years experience; experience with enterprise network monitoring platforms, Linux, SNMP/syslog, automation/scripting (Python/Ansible/Terraform), and 24x7 operational environments.
SevOne, ITNM/Netcool, NetBrain, Netscout, Python, Ansible, Terraform, Linux, SNMP, syslog, OpenTelemetry, AWS, Azure, GCP, ITSM
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1mo
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Lead Network Engineer
Littleton, Colorado, United States
$110k-$160k/yr OnsiteFull Time
EchoStar
EchoStarNasdaq: SATS: Global provider of satellite solutions and wireless communications services.
8+ YOEBachelor's in Electrical or Computer Engineering, 8+ years in large enterprise/carrier environments, mastery of MPLS/segment routing, IPv6/SRv6, QoS, data center fabric, and automation using Python/Bash/Ansible; CCNA/CCNP/CCIE or cloud networking certs preferred. Visa sponsorship not available.
Python, Bash, Ansible, Zero Touch Provisioning, MPLS, Segment Routing, IPv6, SRv6, eGP, iGP
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2mo
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Principal Network Engineer
Denver, Colorado, United States
$160k-$180k/yr OnsiteFull Time
Entarian
Entarian: Provides mission-critical engineering and technology solutions for government agencies.
15+ YOE15+ years network engineering; 5+ years in service provider functions; routing/switching expertise; security tools experience; minimal travel; leads technical actions.
Cisco, Juniper, BGP, OSPF, EIGRP, Cisco ISE, Palo Alto
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2w
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Network Engineer Principal
Broomfield, Colorado, United States
$118k-$201k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA.: Produces advanced defense, aerospace, and information security systems.
6+ YOETS/SCI with polygraph required, Bachelor's in related field plus 6+ years experience (or equivalent), experience with enterprise networking (Cisco, Juniper, Palo Alto, F5), automation and IaC, strong communication and troubleshooting skills.
Cisco IOS, Nexus, Palo Alto GUI, Juniper OS, F5 Load-balancers, SolarWinds, Cisco Nexus Dashboard Fabric Controller, ISE, Infrastructure as Code (IaC)
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Senior Network Design Engineer
Thornton or Atlanta or Addison or Reston
$150k-$218k/yr OnsiteFull Time
Google
GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.
6+ YOEBachelor's in CS/Engineering or equivalent,6+ years with network routing protocols and design,experience planning multi-site networks,programming experience (Python, Go, C++) preferred,strong problem-solving and analysis skills.
Python, Go, C++
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Sr IT Network Engineer
Englewood, Colorado, United States
RemoteFull Time
CommonSpirit Health
CommonSpirit Health: Large non-profit healthcare system providing hospital and medical services.
7+ YOEBachelor\u0002s degree or equivalent experience, 7+ years IT infrastructure experience, 7+ years Cisco engineering/architecture (Route/Switch, Wireless, Nexus, Cisco Prime Infrastructure, Cisco DNAC, Cisco ISE), multi-vendor management.
Cisco Nexus, Cisco Prime Infrastructure, Cisco DNAC, Cisco ISE
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2mo
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Network Engineer
Annapolis Junction or Aurora
$72-$111/hr OnsiteFull Time
EverWatch
EverWatch: Develops software and intelligence systems for government agencies.
8+ YOE8+ years as a Network Engineer; TCP/IP, DNS/DHCP, SNMP, VPN; configure/manage devices; LAN/WAN/cloud; security; monitoring tools; TS/SCI with polygraph; HS diploma or GED.
Cisco hardware, SolarWinds, Wireshark, Nagios, Firewalls, IDS/IPS, VPN, Encryption
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