197 network system engineer jobs at 124 companies in Fairfield, CT

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System Engineer, Vehicle Controls
Charlotte or San Francisco or Los Angeles or New York City
$140k-$170k/yr OnsiteFull Time
Scout Motors
Scout Motors: Designs and manufactures all-electric rugged SUVs and trucks.
10+ YOEMaster's in engineering with 10+ years experience in automotive/mechatronics systems, expertise in EE/SW integration, MBSE/MBD, MIL/SIL/HIL, vehicle networks (CAN, LIN, Automotive Ethernet), and tool experience (JIRA, Confluence, Codebeamer, CANalyzer/CANoe).
MBSE, MBD, MIL/SIL/HIL, CAN, Automotive Ethernet, LIN, LVDS, CANalyzer, CANoe, JIRA, Confluence, Codebeamer, PREEvision, CAMEO, GitHub, JFrog
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Network Engineer
Singapore or Hong Kong or New York City
HybridFull Time
Tower Research Capital
Tower Research Capital: Global quantitative trading firm developing automated algorithmic strategies.
5+ YOE5+ years with complex high-performance networks, experience with Arista/Cisco/Juniper-like OSes, BGP/OSPF/multicast, network monitoring tools, Python scripting, VPNs and security appliances, and Unix/Linux system administration.
Arista EOS, Cisco IOS, Nexus-OS, PAN-OS, BGP, OSPF, PIM, MSDP, MRTG, Graphite, Grafana, Nagios, SNMP, Python, IPSec, GRE, Fortinet, Palo Alto, Unix, Linux, FPGA
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Senior Systems Engineer, Network
Palo Alto or New York City or San Francisco or Seattle or New Jersey
$172k-$228k/yr RemoteFull Time
Wealthfront
WealthfrontNasdaq: WLTH: Automated wealth management and high-yield cash account platform.
6+ YOE6+ years routing and switching in data centers, Linux proficiency, automation of data center environments, BGP/MLAG/VLANs/DNS, Palo Alto and Juniper experience, VPN and AWS networking, Chef/Ansible/Terraform, Ruby/Go/Python, Git, BS/MS or equivalent.
Linux, BGP, MLAG, VLANs, DNS, Palo Alto Networks Firewalls, Juniper switches, OpenVPN, IPSec, TLS, Direct Connect, NACLs, Security Groups, VPC, Chef, Ansible, Terraform, Ruby, Go, Python, Git
3w
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Network Systems Engineer (Pre-Sales) - NYC
New York, New York, United States
$112k-$160k/yr HybridFull Time
Arista Networks
Arista NetworksNYSE: ANET: Provides cloud networking solutions and high-speed multilayer Ethernet switches.
5+ YOEBS in CS/CE required; 5+ years L2/L3 networking experience (data center, campus, Wi-Fi); routing/switching and leaf-spine experience; network certs preferred; Python/Ansible and CloudVision experience valued.
CloudVision, Python, Ansible
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Network Systems Engineer - Onsite NYC 1st Shift
New York City, New York, United States
$120k-$165k/yr OnsiteFull Time
Blue Mantis
Blue Mantis: Strategic IT services provider for managed cloud and cybersecurity.
Network Systems Engineer with Windows/Linux/Unix, cloud, virtualization, and network operations experience; on-site in NYC with weekend/holiday work.
Cisco Nexus, Arista, Meraki, Cisco Wireless Controllers, Windows, Linux, Unix, AWS, Azure, O365, VMware, Rubrik, Zerto, SolarWinds, DataDog, ServiceNow, Python, PowerShell, Bash, Kubernetes, Docker, Palo Alto
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AV System Design Engineer
New York City or Hamptons
$65k-$85k/yr HybridFull Time, Part Time
ClearVista
ClearVista: Professional audio-visual design, installation, and integration services provider.
3+ YOE3+ years in system design; degree in engineering/computer science preferred; AutoCAD/Visio/D-tools; strong networking/IOT knowledge; excellent communication.
AutoCAD, Visio, D-tools
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Network Systems Engineer- New York City
Los Angeles or New York City
$115k-$155k/yr OnsiteFull Time
Blue Mantis
Blue Mantis: Provides managed IT, cybersecurity, and cloud infrastructure services.
Experience with servers, cloud, networking; Cisco Nexus/Arista/Meraki; Windows/Linux/Unix; AWS/Azure/O365; VMware; SolarWinds/DataDog; incident management; security best practices.
Cisco Nexus, Arista, Meraki, Cisco Wireless Controllers, Windows, Linux, Unix, AWS, Azure, O365, VMware, Infoblox, DNS, Rubrik, Zerto, SolarWinds, DataDog, ServiceNow
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System Administrator
West Point, New York, United States
OnsiteFull Time
Chenega Corporation
Chenega Corporation: Provides professional government, defense, and facility support services.
3+ YOELenelS2 and Milestone certifications and Security+ required; 3+ years as a system administrator/systems engineer with security platforms; strong technical background with servers/databases and enterprise electronic security system installation and troubleshooting. Manufacturer/networking certifications preferred.
LenelS2, Milestone, Genetec, Honeywell, Avigilon, Bosch, Microsoft Word, Microsoft Excel, Microsoft Access, Microsoft PowerPoint, Microsoft Outlook
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Wireless Network Systems Engineer (OpenWRT / RADIUS / PPSK)
New York City or United States
$90k/yr RemoteFull Time
Honest Networks
Honest Networks: Provides high-speed gigabit internet services to residential buildings.
Expertise with OpenWRT and FreeRADIUS-based wireless authentication, PPSK/DPSK, MikroTik RouterOS, Linux networking, packet capture tools, and scripting in Python/Bash/Go; experience operating large-scale ISP WiFi preferred.
OpenWRT, FreeRADIUS, RadiusDesk, PPSK, DPSK, MPSK, MikroTik RouterOS, MikroTik, hostapd, UCI, ubus, Linux, tcpdump, Wireshark, SSH, Linux CLI, Python, Bash, Go, LUA, MariaDB, MySQL, SQLite, Ruckus, TP-Link Omada, Docker, MQTT, SNMP, EAPOL, WPA, WPA2, WPA3, TR-069, ACS, Mediatek, Broadcom, Qualcom
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Staff Software Engineer, Network Expansion
Santa Monica or New York City or Seattle
$220k-$250k/yr HybridFull Time
Metropolis
Metropolis: Computer vision technology for checkout-free parking and retail payments.
10+ YOEMS/BS in Computer Science or equivalent, 10+ years building distributed, customer-facing systems; experience with microservices, event-driven architectures, CI/CD, TDD/BDD, MySQL/Postgres; strong communication and cross-functional leadership; ability to work on-site in Santa Monica, NYC, or Seattle.
TypeScript, React, Scala, Java, MySQL, PostgreSQL, Snowflake, AWS, Git, GitHub, Copilot, Claude Code, Datadog
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Engineer-Intermediate Linux System
Palisades, New York, United States
$90k-$104k/yr OnsiteFull Time
Columbia University
Columbia University: A private Ivy League research university providing higher education.
3+ YOEBachelor's in Computer Science or related field, minimum 3 years Linux system administration experience, proficiency with Linux/RHEL, VMware, networking (TCP/IP,DNS,DHCP,LDAP), scripting, cloud (AWS) and ticketing systems.
Linux, RHEL, VMware vSphere, ESXi, vCenter, TCP/IP, DNS, DHCP, LDAP, Amazon Web Services (AWS), Avamar, Veeam, Nagios, Osticket, Jira, Bugzilla, ServiceNow
2mo
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Technical Operations Engineer
New York, New York, United States
$150k-$250k/yr OnsiteFull Time
Distributed Spectrum
Distributed Spectrum: Developing AI systems for real-time radio spectrum intelligence.
Experience in technical operations, systems engineering, or field support; RF or communications knowledge; strong Linux and networking skills; travel willingness; eligible for US security clearance.
Linux, TCP/IP, Networking, VPN, Command line
3w
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Senior Systems Engineer
New York, New York, United States
$90k-$110k/yr HybridFull Time
GEM Technologies
GEM Technologies: Managed IT and cybersecurity services for businesses.
5+ YOE5+ years systems engineering experience, bachelor's degree or equivalent, expertise in systems administration, networking, cloud platforms, security, scripting (PowerShell), and client-facing technical support.
On-Prem Exchange, M365, Cybersecurity Applications, Amazon Web Services, Microsoft Azure, Google Cloud Platform, Google Workspace, PowerShell, DNS, VDI Administration, MFA Administration, MDM Solutions, NOC software, PSAs, router/switch implementation, VoIP systems, RMM
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Design Engineer
Elmsford or Fair Lawn
$67k-$83k/yr OnsiteFull Time
Securitas Technology
Securitas TechnologyNasdaq Stockholm: SECU B: Provides integrated electronic security and fire protection solutions.
BS in Electrical Engineering required; experience with electronic security systems, Revit/AutoCAD/Navisworks, ISO 19650, AC/DC circuitry, and network/system security; security engineering preferred.
Revit, AutoCAD, Navisworks, Microsoft Office
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Senior Systems Engineer
Long Island City, New York, United States
OnsiteFull Time
Eastern Communications
Eastern Communications: Provides mission-critical wireless communication systems for first responders.
5+ YOEBachelor's in EE/CE or similar, 5+ years relevant experience, ~25% domestic travel, experience with RF, networking, system design, Windows/Linux, and security; GSEC/SSCP/Security+ preferred.
Windows Server, Linux, Virtual machine servers, MPLS, T1, Fiber Optic, Microwave, Radio Coverage Analysis, Computer Aided Dispatch, Land Mobile Radio Systems, Interoperability Gateway, RF, RF antenna systems, Network Security
2w
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Communications Field Engineer for System Performance & Infrastructure
Rye, New York, United States
$105k-$135k/yr FieldFull Time
Consolidated Edison
Consolidated EdisonNYSE: ED: Provides electric, gas, and steam services in New York.
3+ YOE3+ years telecom/IT experience (varies by degree), experience with fiber/DWDM, microwave/RF, IP networking, cybersecurity principles, preventive maintenance, vendor/SLA oversight, and ability to work off-hours and travel within service territory.
DWDM, OTN, MPLS, Microsoft Word, Microsoft Excel, Microsoft Outlook, Microsoft PowerPoint
4w
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SCADA Engineer - Level 3
Teaneck or United States
RemoteFull Time
Qcells
Qcells: Provider of solar modules, energy storage, and EPC services.
4+ YOE4+ years SCADA/control systems experience, bachelor’s in Electrical/Software/Systems Engineering, proficiency with relay programming, Modbus/DNP3/IEC 61850, IT networking, cybersecurity, and Visio.
Modbus, DNP3, IEC 61850, Visio, SCADA, EMS, HMI
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Senior Electronics Engineer
New York, New York, United States
$165k-$210k/yr HybridFull Time
Persistent Systems
Persistent Systems: Developer of secure mobile ad-hoc networking systems for mission-critical operations.
7+ YOEBachelor’s degree in electrical engineering or computer science; 7+ years in systems engineering or product design; defense project management experience; end-to-end design knowledge; experience with complex systems and electrical/mechanical interfaces; travel up to 10%; ability to obtain US security clearance.
Embedded Linux, Networking, EMC testing, Hardware design, Software testing, Product design
4d
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Platform Engineer
New York, New York, United States
$200k-$400k/yr OnsiteFull Time
Antimetal
Antimetal: Automates cloud infrastructure management and cost optimization using AI.
3+ YOE3+ years platform/infrastructure/backend engineering; strong service-architecture, networking, and systems design; proficient in TypeScript and Kubernetes; experience with observability and data modeling; product-focused and operationally minded.
TypeScript, Kubernetes, OTEL, Datadog, Claude Code, MCP, OAuth, Anvil
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Market Data Engineer
Miami or New York
$125k-$350k/yr HybridFull Time
Citadel Securities
Citadel Securities: Global market maker providing liquidity for financial markets.
5+ YOESenior Market Data Engineer with strong C++ in low-latency, real-time systems; experience with feed handlers, order books, exchange protocols; ownership of production systems; strong debugging.
C++, Multithreading, Networking