73 l3 support engineer jobs at 43 companies in United States
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IP Support Engineer
Pittsburgh, Pennsylvania, United States
OnsiteFull Time
Provide 24/7 engineering support for SMPTE-2110 IP broadcast mobile units and studios; knowledge of L2/L3 switching, TCP/IP, multicast; Linux/Windows proficiency; Cisco or Arista certification desired.
SMPTE-2110, Cisco, Arista, JavaScript, Python, Linux, Windows, EVS
1mo
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Site Reliability Engineer/L3 Support
New York or Kansas or Pennsylvania or New Hampshire
$110k-$120k/yr RemoteFull Time
3+ YOEU.S. citizen with 3+ years SRE/DevOps experience supporting cloud production systems; strong Linux, Kubernetes, AWS, scripting, monitoring, incident management and communication skills.
Kubernetes, AWS, EKS, RDS, IAM, CloudWatch, Route 53, VPC, AWS Backup, Python, Bash, PowerShell, Go, Prometheus, Grafana, Datadog, Splunk, OpenTelemetry, PagerDuty, Jira Service Management, Istio, CI/CD
1mo
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L3 Infrastructure Engineer
Liberty, North Carolina, United States
$70k-$80k/yr OnsiteFull Time
6+ YOEProvide L3 support for network, server, data center and plant-floor infrastructure; troubleshoot, administer, and resolve complex incidents; on-call 24x7 and travel to client sites.
Cisco, Wire Shark, Windows Server 2016, Windows Server 2012, Microsoft SCCM, Active Directory, PLC, SQL Server, Active Plant, Wonderware, Ignition, iGear, Kepware
2mo
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Verint Support Engineer
United States
RemoteFull Time
Experienced engineer to support Verint and related voice recording platforms, perform L1–L3 incident/change/problem management, execute maintenance/patching, work US East Coast hours, and communicate clearly under pressure.
Verint Workforce Management V15.2, Verint Workforce Optimization (V15.2), NICE NIM, Cisco Call Manager, BT Open Trade platform, Speakerbus
2mo
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Mobile Telecom Support Engineer
United States
RemoteFull Time
10+ YOE10+ years L3 telecom support experience with protocol signalling analysis (2G/3G/4G/5G), Wireshark, Grafana/Prometheus/Elasticsearch familiarity, basic Python/Linux/Bash, ability to work on 24/7 on-call roster, strong communication skills.
Wireshark, Grafana, Prometheus, Elasticsearch, Python, Linux, Bash
3mo
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Escalations Engineer (L3)
Burlington, Vermont, United States
$70k-$85k/yr OnsiteFull Time
5+ YOEProvide Tier 3 escalation support, network and systems engineering, client onboarding, and mentoring.
Windows Server, Active Directory, DHCP, DNS, Hyper-V, VMware, Citrix, RDS, LAN/WAN, Firewalls, VoIP, Azure, AWS, Microsoft 365
1mo
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Wireless Systems Technical Support Engineer
Florida or United States
RemoteFull Time
5+ YOEAssociate/Bachelor's in CS/Telecom/Electrical, 5+ years technical support/field RF experience, US work authorization/residency, knowledge of RF theory, L2/L3 networking, availability to travel within USA.
Microsoft Office, SQL, Linux, NMS
1mo
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IT Support Engineer
Atlanta, Georgia, United States
OnsiteFull Time
5+ YOE5+ years IT support experience with L2–L3 responsibilities, experience with Intune, Azure AD/Entra ID, Microsoft 365, endpoint security, ITSM tools, scripting/automation; bachelor’s preferred.
Microsoft 365, Azure AD, Entra ID, Microsoft Intune, Windows, macOS, iOS, Android, ServiceNow, Freshservice, Jira, Microsoft Defender, PowerShell, Python, Microsoft Copilot
2mo
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Senior HPC Support Engineer - Ethernet and AI Infrastructure
College Station or Texas or United States
$120k-$207k/yr HybridFull Time
6+ YOE6+ years in customer support/debugging for hardware and software; knowledge of Linux system administration, enterprise networking (L2/L3, BGP, OSPF), packet analysis, containers, and AI technologies; degree in Networking/CS/EE or equivalent experience.
Linux, tcpdump, Wireshark, Docker, Kubernetes, Cursor, Gemini, ChatGPT, Copilot, Glean, Python, bash, Ansible, YAML, NVIDIA Spectrum-X
3w
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Application Support Engineer
United States
RemoteFull Time
Requires a BSc in IT or equivalent experience, L2/L3 SaaS support experience, incident investigation, logs and metrics analysis, REST/HTTP/SQL, code reading, strong communication, and English proficiency.
ServiceNow, Copilot, Claude, REST, HTTP, SQL, Postman, JMeter, ASP.NET, MVC, Azure
1w
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DEVELOPER L3(CONTRACT)
Minneapolis, Minnesota, United States
$45k-$110k/yr OnsiteContract
3+ YOEDevelop and test software modules, support requirements gathering and implementation, prepare project documentation, and collaborate with cross-functional teams. Requires 3–5 years of experience in AI/ML governance or product engineering.
2mo
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Experienced Siebel Support Engineer
United States
$96k-$125k/yr OnsiteFull Time
4+ YOE4+ years supporting Oracle Siebel CRM with experience in upgrades/patching, L2/L3 production support, integrations (EAI/Web Services/REST), Windows/Linux servers, SQL (Oracle), networking, and troubleshooting.
Oracle Siebel CRM, Siebel Tools, Siebel Web Server Extension (SWSE), Object Manager, EAI, Web Services, REST, Microsoft Windows Server, Linux, TCP/IP, FTP/SFTP, SQL (Oracle), Tomcat, Apache, eScript, VB Script, Open UI, ADM, IRM, ITIL
2w
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Salesforce Production Support Engineer
Hartford or United States
$64k-$90k/yr RemoteFull Time
5+ YOERequires 5+ years of Salesforce experience, L2/L3 production support, Service Cloud expertise, debugging across Apex, Flows, LWC and Aura, integration support, and Salesforce Administrator and Platform Developer I certifications.
Salesforce, Salesforce Service Cloud, Apex, Flows, Lightning Web Components (LWC), Aura, REST, SOAP, Salesforce debugging and monitoring tools
3w
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Lead Engineer - Application Support 4C
Illinois, United States
$60k-$75k/yr HybridFull Time
Provide L3 application support for P&C insurance systems, perform RCA, collaborate with L1/L2, analyze data and integrations, validate fixes, and support releases.
Microsoft Access VBA, Unix Shell Scripting, Robotic Process Automation, AWS, VMware
1w
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Salesforce Production Support Engineer
United States
$64k-$90k/yr RemoteFull Time
5+ YOERequires 5+ years of Salesforce experience, L2/L3 production support, Service Cloud expertise, Apex and integration troubleshooting, release management, Salesforce Administrator, and Platform Developer I certifications.
Salesforce, Salesforce Service Cloud, Apex, Flows, Lightning Web Components (LWC), Aura, REST, SOAP, Salesforce debugging and monitoring tools, Microsoft Excel
1mo
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Java Production Support Engineer
Charlotte or Dallas
OnsiteFull Time
Strong Core Java/J2EE production support experience (L2/L3), incident management, monitoring, debugging, and troubleshooting of microservices; familiarity with ServiceNow, Autosys, Splunk, Dynatrace or AppDynamics; bachelor's degree or equivalent.
Java, J2EE, Microservices, ServiceNow, Autosys, Splunk, Dynatrace, AppDynamics
2mo
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Experienced Siebel Support Engineer
United States or Texas
$96k-$125k/yr RemoteFull Time
4+ YOE4+ years Siebel CRM experience; L2/L3 production support, upgrades/patching, root-cause analysis, ADM/IRM deployments, integrations (EAI/Web Services/REST), SQL/Oracle, Windows/Linux, networking (TCP/IP, FTP/SFTP); on-call support.
Oracle Siebel CRM, Siebel Tools, Siebel Web Server Extension (SWSE), EAI, Web Services, REST, ADM/IRM, eScript, VB Script, Open UI, Tomcat, Apache, Microsoft Windows, Linux, SQL, Oracle, TCP/IP, FTP/SFTP
1w
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Salesforce Production Support Engineer
United States
$64k-$90k/yr RemoteFull Time
5+ YOERequires 5+ years of Salesforce experience, L2/L3 production support expertise, Service Cloud knowledge, integration troubleshooting, and Salesforce Administrator and Platform Developer I certifications.
Salesforce Service Cloud, Salesforce, Apex, Flows, Lightning Web Components (LWC), Aura, REST, SOAP, Salesforce debugging and monitoring tools, Electronic Medical Records (EMR)
1mo
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Staff Technical Support Engineer - Santa Clara, CA - Hybrid
Santa Clara, California, United States
$112k-$140k/yr HybridFull Time
5+ YOE5+ years technical support or systems engineering experience; hands-on L2/L3 networking, virtualization, and cloud platform experience; strong troubleshooting, documentation, and communication skills.
SalesForce Service Cloud, VMware, Nutanix, AWS, Azure, Jobvite
2mo
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Product Support Engineer
Cambridge or United States
$127k-$228k/yr HybridFull Time
8+ YOE8+ years in technical support/escalation (L3/L4) for cloud solutions; bachelor's degree or equivalent experience; troubleshooting with Wireshark, browser dev tools, Fiddler; knowledge of HTTP/S, TLS/SSL, reverse proxy, DNS, SAML/Kerberos/NTLM/OIDC/OAuth2, TCP/IP, Linux; Python, virtualization, and container experience; eligibility for Secret cleara...
Wireshark, browser developer tools, Fiddler, Python, Linux, VMware, AWS, Azure, Linode, Kubernetes, Docker, Microsoft Server Technologies, HTTP/S, TLS/SSL, SAML, Kerberos, NTLM, OIDC, OAuth2
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