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L4 Technical Support Jobs in Ohio (NOW HIRING)

MSR Cosmos

Network Engineer L3 / L4

Avon Lake, OH · On-site

Design and support Azure networking VNets Subnets NSGs VPN ExpressRoute * Develop HLDs LLDs ... Ability to work independently and guide technical teams * Role Level P3 * Senior individual ...

krg technology inc

Storage (L3/L4)

Cincinnati, OH · On-site

In the support capacity the administrator will liaise with other support teams to ensure rapid ... The storage team also works closely with the other technical teams within IS Delivery, e.g. the ...

krg technology inc

Backup / storage

Cincinnati, OH · On-site

... L3/L4) :- To undertake implementation and support activity for storage Infrastructure which ... The storage team also works closely with the other technical teams within IS Delivery, e.g. the ...

krg technology inc

Backup / storage

Cincinnati, OH · On-site

... L3/L4) :- To undertake implementation and support activity for storage Infrastructure which ... The storage team also works closely with the other technical teams within IS Delivery, e.g. the ...

fairbanksmorse

Shipping Lead - American Fan

Fairfield, OH

$17 - $21.25/hr

... technical leadership. As a small manufacturer who is part of a well-respected international ... This person will be able to work independently and lead or support a team when needed. The ideal ...

All JobsL4 Technical Support JobsL4 Technical Support Jobs in Ohio

L4 Technical Support information

What is an L4 Technical Support?

L4 Technical Support refers to the highest level of technical support within an organization, typically involving experts or engineers who handle the most complex and specialized issues that cannot be resolved by lower-level support teams. L4 support professionals often work closely with product developers or engineers to troubleshoot deep-rooted problems, perform advanced diagnostics, and develop long-term solutions. Their work may also involve identifying bugs, creating patches, and providing guidance for system improvements. L4 support is critical for maintaining system stability and ensuring customer satisfaction with highly technical products or services.

What are the key skills and qualifications needed to thrive as an L4 Technical Support specialist?

To excel as an L4 Technical Support specialist, you need advanced troubleshooting abilities, deep knowledge of operating systems and networking, and a relevant degree or equivalent experience. Expertise with diagnostic tools, ticketing systems (such as ServiceNow or Jira), and certifications like CompTIA, CCNA, or Microsoft are commonly required. Strong analytical thinking, effective communication, and the ability to remain calm under pressure are standout soft skills for this role. These competencies are crucial to efficiently resolve complex technical issues, maintain system reliability, and deliver high-quality support to both users and internal teams.

What are some common challenges faced by L4 Technical Support professionals, and how can they be addressed?

L4 Technical Support professionals often handle the most complex and critical technical issues that have been escalated from lower support tiers. A common challenge is resolving highly specialized, often undocumented problems, which requires deep product knowledge and strong analytical skills. Effective collaboration with engineering and product development teams is essential for troubleshooting and developing long-term solutions. Staying current with evolving technologies and maintaining clear communication with both technical and non-technical stakeholders also help address these challenges.

What is the difference between L4 Technical Support vs L3 Technical Support?

AspectL4 Technical SupportL3 Technical Support
CertificationsOften requires advanced certifications like Cisco CCNP, Microsoft MCSETypically holds foundational certifications like CompTIA A+, Network+
Work EnvironmentHandles complex issues, often in specialized or enterprise settingsAddresses moderate technical problems, usually in support centers
ResponsibilitiesDiagnoses and resolves advanced technical issues, mentors L3Resolves standard technical issues, escalates complex cases

The main difference between L4 Technical Support and L3 Technical Support lies in the complexity of issues handled and required certifications. L4 support deals with highly complex problems, often requiring advanced skills and certifications, while L3 support manages more routine technical issues. Both roles are essential in technical support hierarchies, with L4 providing expert-level assistance and mentorship to L3 teams.

Infographic showing various L4 Technical Support job openings in Ohio as of August 2026, with employment types broken down into 1% As Needed, 69% Full Time, 23% Part Time, and 7% Contract. Highlights an 85% Physical, 2% Hybrid, and 13% Remote job distribution.

Network Engineer L3 / L4

Avon Lake, OH • On-site

MSR Cosmos
See more jobs at MSR Cosmosexternal

Contractor

Re-posted 21 days ago

Job description

Role: Network Engineer with L3 L4
Location: Avon Lake, OH-44012-Onsite
Duration: Long Term
 
Loking for 15+ years of experience.
 
L3L4 Mandatory 
 
Mandatory Skills
  • SD‑WAN (VeloCloud)
  • Palo Alto firewall architecture
  • Azure networking (ExpressRoute, VPN, VNets)
  • Enterprise routing & switching (BGP / OSPF)
  • HLD / LLD & architecture governance
  • L3 / L4 escalation capability
  • Global enterprise network exposure
     
Role Summary
The Network Engineer P3/P4 is responsible for designing governing and optimizing enterprise network architectures across onprem hybrid and cloud environments The role focuses on SDWAN VMware VeloCloud Routing Switching Palo Alto security and Azure Networking ensuring secure scalable and highly available infrastructure aligned to business needs
 
Key Responsibilities
  • Design and maintain enterprise LAN WAN SDWAN Internet and Cloud network architectures
  • Lead SDWAN VeloCloud design optimization and migration from traditional WAN
  • Define routing and switching architectures BGP OSPF VLANs HA
  • Architect and integrate network security solutions primarily Palo Alto Firewalls
  • Design and support Azure networking VNets Subnets NSGs VPN ExpressRoute
  • Develop HLDs LLDs architecture diagrams and standards
  • Provide L3L4 escalation and architectural guidance for complex incidents
  • Support change risk and governance processes CAB audits compliance
  • Collaborate with operations security cloud and application teams
 
Required Skills
  • SDWAN VMware VeloCloud
  • Routing Switching BGP OSPF VLANs HA
  • Network Security Palo Alto Firewalls VPNs segmentation
  • Cloud Networking Microsoft Azure
  • Strong experience in enterprise global network environments
Experience Profile
  • 8 12 years in network engineering architecture
  • Experience in AMS large infrastructure estates or transformation programs
  • Strong documentation design and stakeholder communication skills
  • Ability to work independently and guide technical teams
  • Role Level P3
  • Senior individual contributor with architecture ownership
  • Provides technical leadership not people management
  • Influences network strategy design decisions and standards
 
Skills
Mandatory Skills :  Azure Infra Services, Cisco DC/Branches Routers & Switches, Cisco-sdn-network-administration, F5 Load Balancer, Netscaler LoadBalancer
 
Thanks
Ramesh